10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

þQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2013

OR

¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number	Registrant, State of Incorporation, Address and Telephone Number	I.R.S. Employer Identification No.
1-3526	The Southern Company (A Delaware Corporation) 30 Ivan Allen Jr. Boulevard, N.W. Atlanta, Georgia 30308 (404) 506-5000	58-0690070
1-3164	Alabama Power Company (An Alabama Corporation) 600 North 18th Street Birmingham, Alabama 35203 (205) 257-1000	63-0004250
1-6468	Georgia Power Company (A Georgia Corporation) 241 Ralph McGill Boulevard, N.E. Atlanta, Georgia 30308 (404) 506-6526	58-0257110
001-31737	Gulf Power Company (A Florida Corporation) One Energy Place Pensacola, Florida 32520 (850) 444-6111	59-0276810
001-11229	Mississippi Power Company (A Mississippi Corporation) 2992 West Beach Boulevard Gulfport, Mississippi 39501 (228) 864-1211	64-0205820
333-98553	Southern Power Company (A Delaware Corporation) 30 Ivan Allen Jr. Boulevard, N.W. Atlanta, Georgia 30308 (404) 506-5000	58-2598670

Indicate by check mark whether the registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. Yes þ No ¨

Indicate by check mark whether the registrants have submitted electronically and posted on their corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrants were required to submit and post such files). Yes þ No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):

Registrant	Large Accelerated Filer	Accelerated Filer	Non- accelerated Filer	Smaller Reporting Company
The Southern Company	X
Alabama Power Company			X
Georgia Power Company			X
Gulf Power Company			X
Mississippi Power Company			X
Southern Power Company			X

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act.) Yes ¨ No þ (Response applicable to all registrants.)

Registrant	Description of Common Stock	Shares Outstanding at March 31, 2013
The Southern Company	Par Value $5 Per Share	870,390,537
Alabama Power Company	Par Value $40 Per Share	30,537,500
Georgia Power Company	Without Par Value	9,261,500
Gulf Power Company	Without Par Value	4,942,717
Mississippi Power Company	Without Par Value	1,121,000
Southern Power Company	Par Value $0.01 Per Share	1,000

This combined Form 10-Q is separately filed by The Southern Company, Alabama Power Company, Georgia Power Company, Gulf Power Company, Mississippi Power Company, and Southern Power Company. Information contained herein relating to any individual registrant is filed by such registrant on its own behalf. Each registrant makes no representation as to information relating to the other registrants.

2

INDEX TO QUARTERLY REPORT ON FORM 10-Q

March 31, 2013

		Page     Number
DEFINITIONS		4
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION		6
	PART I—FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations
	The Southern Company and Subsidiary Companies
	Condensed Consolidated Statements of Income	9
	Condensed Consolidated Statements of Comprehensive Income	10
	Condensed Consolidated Statements of Cash Flows	11
	Condensed Consolidated Balance Sheets	12
	Management's Discussion and Analysis of Financial Condition and Results of Operations	14
	Alabama Power Company
	Condensed Statements of Income	34
	Condensed Statements of Comprehensive Income	34
	Condensed Statements of Cash Flows	35
	Condensed Balance Sheets	36
	Management's Discussion and Analysis of Financial Condition and Results of Operations	38
	Georgia Power Company
	Condensed Statements of Income	52
	Condensed Statements of Comprehensive Income	52
	Condensed Statements of Cash Flows	53
	Condensed Balance Sheets	54
	Management's Discussion and Analysis of Financial Condition and Results of Operations	56
	Gulf Power Company
	Condensed Statements of Income	71
	Condensed Statements of Comprehensive Income	71
	Condensed Statements of Cash Flows	72
	Condensed Balance Sheets	73
	Management's Discussion and Analysis of Financial Condition and Results of Operations	75
	Mississippi Power Company
	Condensed Statements of Operations	88
	Condensed Statements of Comprehensive Income (Loss)	88
	Condensed Statements of Cash Flows	89
	Condensed Balance Sheets	90
	Management's Discussion and Analysis of Financial Condition and Results of Operations	92
	Southern Power Company and Subsidiary Companies
	Condensed Consolidated Statements of Income	113
	Condensed Consolidated Statements of Comprehensive Income	113
	Condensed Consolidated Statements of Cash Flows	114
	Condensed Consolidated Balance Sheets	115
	Management's Discussion and Analysis of Financial Condition and Results of Operations	117
	Notes to the Condensed Financial Statements	127
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	32
Item 4.	Controls and Procedures	32

		Page     Number
	PART II—OTHER INFORMATION
Item 1.	Legal Proceedings	166
Item 1A.	Risk Factors	166
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	166
Item 3.	Defaults Upon Senior Securities	Inapplicable
Item 4.	Mine Safety Disclosures	Inapplicable
Item 5.	Other Information	167
Item 6.	Exhibits	169
	Signatures	173

3

DEFINITIONS

Term	Meaning
2010 ARP	Alternate Rate Plan approved by the Georgia PSC for Georgia Power, which became effective January 1, 2011 and will continue through December 31, 2013
2011 IRP	Georgia Power's 2011 Integrated Resource Plan update filed with the Georgia PSC
2013 IRP	Georgia Power's triennial Integrated Resource Plan filed with the Georgia PSC on January 31, 2013
AFUDC	Allowance for Funds Used During Construction
Alabama Power	Alabama Power Company
AOCI	Accumulated Other Comprehensive Income
Baseload Act	State of Mississippi legislation designed to enhance the Mississippi PSC's authority to facilitate development and construction of baseload generation in the State of Mississippi
Clean Air Act	Clean Air Act Amendments of 1990
Contractor	Westinghouse and Stone & Webster, Inc.
CPCN	Certificate of Public Convenience and Necessity
CWIP	Construction Work in Progress
DOE	U.S. Department of Energy
ECO Plan	Mississippi Power's Environmental Compliance Overview Plan
EPA	U.S. Environmental Protection Agency
FERC	Federal Energy Regulatory Commission
Form 10-K	Combined Annual Report on Form 10-K of Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power for the year ended December 31, 2012
Form 10-K/A	Annual Report on Form 10-K of Mississippi Power for the year ended December 31, 2012, as amended by Amendment No. 1
GAAP	Generally Accepted Accounting Principles
Georgia Power	Georgia Power Company
Gulf Power	Gulf Power Company
IFR	Georgia Power's Interim Fuel Rider
IIC	Intercompany Interchange Contract
Internal Revenue Code	Internal Revenue Code of 1986, as amended
IRS	Internal Revenue Service
Kemper IGCC	Integrated coal gasification combined cycle facility under construction in Kemper County, Mississippi
KWH	Kilowatt-hour
LIBOR	London Interbank Offered Rate
MATS rule	Mercury and Air Toxics Standards Rule
Mississippi Power	Mississippi Power Company
mmBtu	Million British thermal unit
Moody's	Moody's Investors Service, Inc.
MW	Megawatt
MWH	Megawatt-hour
NCCR	Georgia Power's Nuclear Construction Cost Recovery
NDR	Alabama Power's Natural Disaster Reserve
NRC	Nuclear Regulatory Commission
NSR	New Source Review
OCI	Other Comprehensive Income

4

Owners	Georgia Power, Oglethorpe Power Corporation, the Municipal Electric Authority of Georgia, and the City of Dalton, Georgia, an incorporated municipality in the State of Georgia acting by and through its Board of Water, Light, and Sinking Fund Commissioners
PEP	Mississippi Power's Performance Evaluation Plan
Plant Vogtle Units 3 and 4	Two new nuclear generating units under construction at Plant Vogtle
Power Pool	The operating arrangement whereby the integrated generating resources of the traditional operating companies and Southern Power are subject to joint commitment and dispatch in order to serve their combined load obligations
PPA	Power Purchase Agreement
PSC	Public Service Commission
registrants	Southern Company, Alabama Power, Georgia Power, Gulf Power, Mississippi Power, and Southern Power
ROE	Return on Equity
SEC	Securities and Exchange Commission
SEGCO	Southern Electric Generating Company
SMEPA	South Mississippi Electric Power Association
Southern Company	The Southern Company
Southern Company system	Southern Company, the traditional operating companies, Southern Power, and other subsidiaries
Southern Nuclear	Southern Nuclear Operating Company, Inc.
Southern Power	Southern Power Company
S&P	Standard and Poor's Ratings Services, a division of The McGraw Hill Companies, Inc.
traditional operating companies	Alabama Power, Georgia Power, Gulf Power, and Mississippi Power
Westinghouse	Westinghouse Electric Company LLC
wholesale revenues	revenues generated from sales for resale

5

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This Quarterly Report on Form 10-Q contains forward-looking statements. Forward-looking statements include, among other things, statements concerning retail sales, retail rates, the strategic goals for the wholesale business, customer growth, economic recovery, fuel and environmental cost recovery and other rate actions, current and proposed environmental regulations and related estimated expenditures, access to sources of capital, projections for the qualified pension plan, postretirement benefit plan, and nuclear decommissioning trust fund contributions, financing activities, start and completion dates of construction projects, plans and estimated costs for new generation resources, filings with state and federal regulatory authorities, impact of the American Taxpayer Relief Act of 2012, estimated sales and purchases under new power sale and purchase agreements, and estimated construction and other expenditures. In some cases, forward-looking statements can be identified by terminology such as "may," "will," "could," "should," "expects," "plans," "anticipates," "believes," "estimates," "projects," "predicts," "potential," or "continue" or the negative of these terms or other similar terminology. There are various factors that could cause actual results to differ materially from those suggested by the forward-looking statements; accordingly, there can be no assurance that such indicated results will be realized. These factors include:

• the impact of recent and future federal and state regulatory changes, including legislative and regulatory initiatives regarding deregulation and restructuring of the electric utility industry, environmental laws including regulation of water, coal combustion byproducts, and emissions of sulfur, nitrogen, carbon, soot, particulate matter, hazardous air pollutants, including mercury, and other substances, financial reform legislation, and also changes in tax and other laws and regulations to which Southern Company and its subsidiaries are subject, as well as changes in application of existing laws and regulations;

• current and future litigation, regulatory investigations, proceedings, or inquiries, including the pending EPA civil actions against certain Southern Company subsidiaries, FERC matters, and IRS and state tax audits;

• the effects, extent, and timing of the entry of additional competition in the markets in which Southern Company's subsidiaries operate;

• variations in demand for electricity, including those relating to weather, the general economy and recovery from the recent recession, population and business growth (and declines), the effects of energy conservation measures, and any potential economic impacts resulting from federal fiscal decisions;

• available sources and costs of fuels;

• effects of inflation;

• ability to control costs and avoid cost overruns during the development and construction of facilities, including the development and construction of facilities with designs that have not been finalized or previously constructed, to construct facilities in accordance with the requirements of permits and licenses, and to satisfy any operational and environmental performance standards, including the requirements of tax credits and other incentives;

• investment performance of Southern Company's employee benefit plans and the Southern Company system's nuclear decommissioning trust funds;

• advances in technology;

• state and federal rate regulations and the impact of pending and future rate cases and negotiations, including rate actions relating to fuel and other cost recovery mechanisms;

• regulatory approvals and actions related to Plant Vogtle Units 3 and 4, including Georgia PSC approvals, NRC actions, and potential DOE loan guarantees;

• regulatory approvals and actions related to cost recovery for the Kemper IGCC, including Mississippi PSC review of Mississippi Power's proposed rate recovery plan, the prudence review of Kemper IGCC costs and actions relating to proposed securitization; the ability to complete the proposed sale of an interest in the Kemper IGCC to SMEPA as contemplated by Mississippi Power's proposed rate recovery plan; satisfaction of requirements to utilize investment tax credits and grants; and the outcome of any legal or regulatory proceedings regarding the Mississippi PSC's issuance of the CPCN for the Kemper IGCC, the settlement agreement between Mississippi Power and the Mississippi PSC, or the Baseload Act;

6

• the inherent risks involved in operating and constructing nuclear generating facilities, including environmental, health, regulatory, natural disaster, terrorism, and financial risks;

• the performance of projects undertaken by the non-utility businesses and the success of efforts to invest in and develop new opportunities;

• internal restructuring or other restructuring options that may be pursued;

• potential business strategies, including acquisitions or dispositions of assets or businesses, which cannot be assured to be completed or beneficial to Southern Company or its subsidiaries;

• the ability of counterparties of Southern Company and its subsidiaries to make payments as and when due and to perform as required;

• the ability to obtain new short- and long-term contracts with wholesale customers;

• the direct or indirect effect on the Southern Company system's business resulting from terrorist incidents and the threat of terrorist incidents, including cyber intrusion;

• interest rate fluctuations and financial market conditions and the results of financing efforts, including Southern Company's and its subsidiaries' credit ratings;

• the impacts of any potential U.S. credit rating downgrade or other sovereign financial issues, including impacts on interest rates, access to capital markets, impacts on currency exchange rates, counterparty performance, and the economy in general, as well as potential impacts on the availability or benefits of proposed DOE loan guarantees;

• the ability of Southern Company and its subsidiaries to obtain additional generating capacity at competitive prices;

• catastrophic events such as fires, earthquakes, explosions, floods, hurricanes, droughts, pandemic health events such as influenzas, or other similar occurrences;

• the direct or indirect effects on the Southern Company system's business resulting from incidents affecting the U.S. electric grid or operation of generating resources;

• the effect of accounting pronouncements issued periodically by standard setting bodies; and

• other factors discussed elsewhere herein and in other reports (including the Form 10-K and the Form 10-K/A) filed by the registrants from time to time with the SEC.

The registrants expressly disclaim any obligation to update any forward-looking statements.

7

THE SOUTHERN COMPANY

AND SUBSIDIARY COMPANIES

8

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Operating Revenues:
Retail revenues	$	3,298		$	3,092
Wholesale revenues	432			349
Other electric revenues	155			148
Other revenues	12			15
Total operating revenues	3,897			3,604
Operating Expenses:
Fuel	1,262			1,064
Purchased power	95			141
Other operations and maintenance	974			967
Depreciation and amortization	466			441
Taxes other than income taxes	235			225
Estimated loss on Kemper IGCC	540			—
Total operating expenses	3,572			2,838
Operating Income	325			766
Other Income and (Expense):
Allowance for equity funds used during construction	41			31
Leveraged lease income (loss)	(21		)	6
Interest expense, net of amounts capitalized	(211		)	(211		)
Other income (expense), net	(6		)	(8		)
Total other income and (expense)	(197		)	(182		)
Earnings Before Income Taxes	128			584
Income taxes	31			200
Consolidated Net Income	97			384
Dividends on Preferred and Preference Stock of Subsidiaries	16			16
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	$	81		$	368
Common Stock Data:
Earnings per share (EPS) -
Basic EPS	$	0.09		$	0.42
Diluted EPS	$	0.09		$	0.42
Average number of shares of common stock outstanding (in millions)
Basic	870			868
Diluted	875			877
Cash dividends paid per share of common stock	$	0.4900		$	0.4725

The accompanying notes as they relate to Southern Company are an integral part of these condensed financial statements.

9

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Consolidated Net Income	$	97		$	384
Other comprehensive income (loss):
Qualifying hedges:
Changes in fair value, net of tax of $- and $2, respectively	—			3
Reclassification adjustment for amounts included in net income, net of tax of $2 and $1, respectively	3			2
Pension and other post retirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax of $1 and $1, respectively	1			1
Total other comprehensive income (loss)	4			6
Dividends on preferred and preference stock of subsidiaries	(16		)	(16		)
Comprehensive Income	$	85		$	374

The accompanying notes as they relate to Southern Company are an integral part of these condensed financial statements.

10

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Operating Activities:
Consolidated net income	$	97		$	384
Adjustments to reconcile consolidated net income to net cash provided from operating activities —
Depreciation and amortization, total	568			529
Deferred income taxes	(92		)	104
Allowance for equity funds used during construction	(41		)	(31		)
Leveraged lease (income) loss	21			(6		)
Pension, postretirement, and other employee benefits	22			16
Stock based compensation expense	26			25
Estimated loss on Kemper IGCC	540			—
Other, net	(62		)	8
Changes in certain current assets and liabilities —
-Receivables	29			372
-Fossil fuel stock	36			(218		)
-Materials and supplies	52			4
-Other current assets	(72		)	(64		)
-Accounts payable	(47		)	(136		)
-Accrued taxes	(98		)	(167		)
-Accrued compensation	(282		)	(305		)
-Other current liabilities	40			53
Net cash provided from operating activities	737			568
Investing Activities:
Property additions	(1,197		)	(1,231		)
Investment in restricted cash	(78		)	1
Nuclear decommissioning trust fund purchases	(262		)	(336		)
Nuclear decommissioning trust fund sales	261			334
Cost of removal, net of salvage	(30		)	(32		)
Change in construction payables, net	6			(153		)
Other investing activities	21			(10		)
Net cash used for investing activities	(1,279		)	(1,427		)
Financing Activities:
Increase in notes payable, net	468			174
Proceeds —
Long-term debt issuances	1,035			1,400
Interest-bearing refundable deposit related to asset sale	—			150
Common stock issuances	42			116
Redemptions —
Long-term debt	(656		)	(827		)
Common stock repurchased	(18		)	—
Payment of common stock dividends	(426		)	(410		)
Payment of dividends on preferred and preference stock of subsidiaries	(16		)	(16		)
Other financing activities	—			1
Net cash provided from financing activities	429			588
Net Change in Cash and Cash Equivalents	(113		)	(271		)
Cash and Cash Equivalents at Beginning of Period	628			1,315
Cash and Cash Equivalents at End of Period	$	515		$	1,044
Supplemental Cash Flow Information:
Cash paid (received) during the period for —
Interest (net of $17 and $21 capitalized for 2013 and 2012, respectively)	$	187		$	178
Income taxes, net	4			2
Noncash transactions — accrued property additions at end of period	501			420

The accompanying notes as they relate to Southern Company are an integral part of these condensed financial statements.

11

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

Assets	At March 31, 2013			At December 31, 2012
	(in millions)
Current Assets:
Cash and cash equivalents	$	515		$	628
Restricted cash and cash equivalents	25			7
Receivables —
Customer accounts receivable	1,011			961
Unbilled revenues	390			441
Under recovered regulatory clause revenues	26			29
Other accounts and notes receivable	223			235
Accumulated provision for uncollectible accounts	(15		)	(17		)
Fossil fuel stock, at average cost	1,783			1,819
Materials and supplies, at average cost	940			1,000
Vacation pay	166			165
Prepaid expenses	693			657
Other regulatory assets, current	115			163
Other current assets	60			74
Total current assets	5,932			6,162
Property, Plant, and Equipment:
In service	63,586			63,251
Less accumulated depreciation	22,219			21,964
Plant in service, net of depreciation	41,367			41,287
Other utility plant, net	266			263
Nuclear fuel, at amortized cost	861			851
Construction work in progress	6,193			5,989
Total property, plant, and equipment	48,687			48,390
Other Property and Investments:
Nuclear decommissioning trusts, at fair value	1,365			1,303
Leveraged leases	648			670
Miscellaneous property and investments	217			216
Total other property and investments	2,230			2,189
Deferred Charges and Other Assets:
Deferred charges related to income taxes	1,387			1,385
Unamortized debt issuance expense	144			133
Unamortized loss on reacquired debt	303			309
Other regulatory assets, deferred	4,021			4,032
Other deferred charges and assets	570			549
Total deferred charges and other assets	6,425			6,408
Total Assets	$	63,274		$	63,149

The accompanying notes as they relate to Southern Company are an integral part of these condensed financial statements.

12

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

Liabilities and Stockholders' Equity	At March 31, 2013			At December 31, 2012
	(in millions)
Current Liabilities:
Securities due within one year	$	1,769		$	2,335
Interest-bearing refundable deposit related to asset sale	150			150
Notes payable	1,294			825
Accounts payable	1,369			1,387
Customer deposits	376			370
Accrued taxes —
Accrued income taxes	38			10
Other accrued taxes	208			391
Accrued interest	249			237
Accrued vacation pay	212			212
Accrued compensation	161			433
Liabilities from risk management activities	37			75
Other regulatory liabilities, current	114			107
Other current liabilities	462			482
Total current liabilities	6,439			7,014
Long-term Debt	20,223			19,274
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	9,842			9,938
Deferred credits related to income taxes	207			211
Accumulated deferred investment tax credits	946			894
Employee benefit obligations	2,526			2,540
Asset retirement obligations	1,807			1,748
Other cost of removal obligations	1,220			1,194
Other regulatory liabilities, deferred	312			289
Other deferred credits and liabilities	633			668
Total deferred credits and other liabilities	17,493			17,482
Total Liabilities	44,155			43,770
Redeemable Preferred Stock of Subsidiaries	375			375
Stockholders' Equity:
Common Stockholders' Equity:
Common stock, par value $5 per share —
Authorized — 1.5 billion shares
Issued — March 31, 2013: 880 million shares
— December 31, 2012: 878 million shares
Treasury — March 31, 2013: 10.1 million shares
— December 31, 2012: 10.0 million shares
Par value	4,400			4,389
Paid-in capital	4,926			4,855
Treasury, at cost	(451		)	(450		)
Retained earnings	9,281			9,626
Accumulated other comprehensive loss	(119		)	(123		)
Total Common Stockholders' Equity	18,037			18,297
Preferred and Preference Stock of Subsidiaries	707			707
Total Stockholders' Equity	18,744			19,004
Total Liabilities and Stockholders' Equity	$	63,274		$	63,149

The accompanying notes as they relate to Southern Company are an integral part of these condensed financial statements.

13

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FIRST QUARTER 2013 vs. FIRST QUARTER 2012

OVERVIEW

Southern Company is a holding company that owns all of the common stock of the traditional operating companies – Alabama Power, Georgia Power, Gulf Power, and Mississippi Power – and Southern Power and other direct and indirect subsidiaries. Discussion of the results of operations is focused on the Southern Company system's primary business of electricity sales by the traditional operating companies and Southern Power. The four traditional operating companies are vertically integrated utilities providing electric service in four Southeastern states. Southern Power constructs, acquires, owns, and manages generation assets, including renewable energy projects, and sells electricity at market-based rates in the wholesale market. Southern Company's other business activities include investments in leveraged lease projects and telecommunications. For additional information on these businesses, see BUSINESS – The Southern Company System – "Traditional Operating Companies," "Southern Power," and "Other Businesses" in Item 1 of the Form 10-K.

In addition, subsidiaries of Southern Company are constructing Plant Vogtle Units 3 and 4 (45.7% ownership interest by Georgia Power in two units, each with approximately 1,100 MWs) and the Kemper IGCC for a total of 582 MWs. See RESULTS OF OPERATIONS – "Estimated Loss on Kemper IGCC," FUTURE EARNINGS POTENTIAL – "Construction Program," and Note (B) to the Condensed Financial Statements under "PSC Matters – Georgia Power – Nuclear Construction" and "Integrated Coal Gasification Combined Cycle" herein for additional information.

Georgia Power is scheduled to file its next base rate case by July 1, 2013, which will determine whether the 2010 ARP should be continued, modified, or discontinued.

Southern Company continues to focus on several key performance indicators. These indicators include customer satisfaction, plant availability, system reliability, and earnings per share. For additional information on these indicators, see MANAGEMENT'S DISCUSSION AND ANALYSIS – OVERVIEW – "Key Performance Indicators" of Southern Company in Item 7 of the Form 10-K. See FUTURE EARNINGS POTENTIAL – "Other Matters" herein for information regarding an explosion at Plant Bowen in April 2013 that is expected to negatively impact the Southern Company system's actual performance on its peak season equivalent forced outage rate, one of its key performance indicators, for 2013, as compared to the target.

RESULTS OF OPERATIONS

Net Income

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(287)	(78.0)

Southern Company's first quarter 2013 net income after dividends on preferred and preference stock of subsidiaries was $81 million ($0.09 per share) compared to $368 million ($0.42 per share) for the first quarter 2012. The decrease was primarily related to a revision of estimated costs expected to be incurred on Mississippi Power's construction of the Kemper IGCC above the $2.88 billion cost cap established by the Mississippi PSC, net of $245 million of grants awarded to the project by the DOE under the Clean Coal Power Initiative Round 2 (DOE Grants) and the cost of the lignite mine and equipment, the cost of the carbon dioxide pipeline facilities, AFUDC, and certain general exceptions, including change of law, force majeure, and beneficial capital (which exists when Mississippi Power demonstrates that the purpose and effect of the construction cost increase is to produce efficiencies that will result in a neutral or favorable effect on customers relative to the original proposal for the CPCN) (Cost Cap Exceptions). Also contributing to the decrease were a reduction in leveraged lease income

14

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

resulting from a lease restructuring and an increase in depreciation related to new generating plants in service. The decrease was partially offset by an increase in weather-related revenues due to more favorable weather in the first quarter 2013 as compared to the corresponding period in 2012, an increase in retail base revenues at Georgia Power as authorized under the 2010 ARP and the NCCR tariff, and an increase in capacity revenues at Southern Power.

Retail Revenues

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$206	6.7

In the first quarter 2013, retail revenues were $3.3 billion compared to $3.1 billion for the corresponding period in 2012.

Details of the change to retail revenues were as follows: 

	First Quarter 2013
	(in millions)			(% change)
Retail – prior year	$	3,092
Estimated change in –
Rates and pricing	46			1.5
Sales growth (decline)	(14		)	(0.4	)
Weather	66			2.1
Fuel and other cost recovery	108			3.5
Retail – current year	$	3,298		6.7	%

Revenues associated with changes in rates and pricing increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to base tariff increases at Georgia Power effective April 2012 and January 1, 2013, as approved by the Georgia PSC, related to placing new generating units at Plant McDonough-Atkinson in service, the financing costs related to the construction of Plant Vogtle Units 3 and 4, and demand-side management costs.

Revenues attributable to changes in sales decreased in the first quarter 2013 when compared to the corresponding period in 2012. The decrease was due to a 2.1% decrease in industrial KWH sales and a 0.9% decrease in weather-adjusted residential KWH sales, partially offset by a 0.4% increase in weather-adjusted commercial KWH sales. The decrease in industrial KWH sales for the first quarter 2013 was primarily due to decreases in the chemicals, paper, and primary metals sectors, partially offset by an increase in the stone, clay, and glass sector. The decrease in weather-adjusted residential KWH sales for the first quarter 2013 was primarily due to a decrease in customer usage, partially offset by customer growth. The increase in weather-adjusted commercial KWH sales for the first quarter 2013 was primarily due to increased customer usage. In addition, an extra day of sales as a result of the leap year in 2012 negatively impacted KWH sales in all customer classes in 2013.

In the first quarter 2012, Georgia Power began using new actual advanced meter data to compute unbilled revenues. The weather-adjusted KWH sales variances shown above reflect an adjustment to the estimated allocation of Georgia Power's unbilled January 2012 KWH sales among customer classes that is consistent with the actual allocation in 2013. Without this adjustment, first quarter 2013 residential weather-adjusted KWH sales decreased 1.9% as compared to the corresponding period in 2012 and commercial weather-adjusted KWH sales increased 1.5% as compared to the corresponding period in 2012.

Revenues resulting from changes in weather increased $66 million in the first quarter 2013 as a result of more favorable weather when compared to the corresponding period in 2012.

Fuel and other cost recovery revenues increased $108 million in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to an increase in fuel costs associated with an increase in KWH

15

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

generation. Electric rates for the traditional operating companies include provisions to adjust billings for fluctuations in fuel costs, including the energy component of purchased power costs. Under these provisions, fuel revenues generally equal fuel expenses, including the energy component of purchased power costs, and do not affect net income. The traditional operating companies may also have one or more regulatory mechanisms to recover other costs such as environmental, storm damage, new plants, and PPAs.

Wholesale Revenues

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$83	23.8

Wholesale revenues consist of PPAs with investor-owned utilities and electric cooperatives, unit power sales contracts, and short-term opportunity sales. Wholesale revenues from PPAs and unit power sales contracts have both capacity and energy components. Capacity revenues reflect the recovery of fixed costs and a return on investment. Energy revenues will vary depending on fuel prices, the market prices of wholesale energy compared to the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation. Increases and decreases in energy revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income. Short-term opportunity sales are made at market-based rates that generally provide a margin above the Southern Company system's variable cost to produce the energy.

In the first quarter 2013, wholesale revenues were $432 million compared to $349 million for the corresponding period in 2012, reflecting a $60 million increase in energy revenues and a $23 million increase in capacity revenues. The increase in energy revenues was primarily related to more favorable weather in the first quarter 2013 as compared to the corresponding period in 2012. The increase in capacity revenues was primarily due to the commencement of PPAs at Southern Power for new plants placed in service in 2012.

Fuel and Purchased Power Expenses

	First Quarter 2013 vs. First Quarter 2012
	(change in millions)			(% change)
Fuel	$	198		18.6
Purchased power	(46		)	(32.6	)
Total fuel and purchased power expenses	$	152

In the first quarter 2013, total fuel and purchased power expenses were $1.4 billion compared to $1.2 billion for the corresponding period in 2012. The increase was primarily the result of a $116 million increase in the volume of KWHs generated as a result of more favorable weather in the first quarter 2013 and a $95 million increase in the average cost of fuel and purchased power, partially offset by a $59 million decrease in the volume of KWHs purchased.

Fuel and purchased power energy transactions at the traditional operating companies are generally offset by fuel revenues and do not have a significant impact on net income. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Retail Fuel Cost Recovery" herein for additional information. Fuel expenses incurred under Southern Power's PPAs are generally the responsibility of the counterparties and do not significantly impact net income.

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THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Details of the Southern Company system's generation and purchased power were as follows: 

	First Quarter 2013	First Quarter 2012
Total generation (billions of KWHs)	43	39
Total purchased power (billions of KWHs)	3	4
Sources of generation (percent) —
Coal	34	35
Nuclear	17	19
Gas	44	42
Hydro	5	4
Cost of fuel, generated (cents per net KWH) —
Coal	4.14	4.09
Nuclear	0.85	0.80
Gas	3.11	2.77
Average cost of fuel, generated (cents per net KWH)	3.08	2.85
Average cost of purchased power (cents per net KWH)(a)	4.64	3.88

(a) Average cost of purchased power includes fuel purchased by the electric utilities for tolling agreements where power

is generated by the provider.

Fuel

In the first quarter 2013, fuel expense was $1.3 billion compared to $1.1 billion for the corresponding period in 2012. The increase was primarily due to a 12.3% increase in the average cost of natural gas per KWH generated and a 9.3% increase in the volume of KWHs generated as a result of higher demand for generation.

Purchased Power

In the first quarter 2013, purchased power expense was $95 million compared to $141 million for the corresponding period in 2012. The decrease was primarily due to a 33.7% decrease in the volume of KWHs purchased as the marginal cost of generation available was lower than the market cost of available energy, partially offset by a 19.6% increase in the average cost per KWH purchased.

Energy purchases will vary depending on demand for energy within the Southern Company system's service territory, the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, and the availability of the Southern Company system's generation.

Other Operations and Maintenance Expenses

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$7	0.7

In the first quarter 2013, other operations and maintenance expenses were $974 million compared to $967 million for the corresponding period in 2012. The increase was primarily the result of a $14 million increase in administrative and general costs primarily due to an increase in pension costs and a $6 million increase in nuclear production expenses primarily at Alabama Power related to the amortization of nuclear outage expenses, partially offset by a $14 million decrease related to scheduled outage and maintenance costs.

17

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Depreciation and Amortization

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$25	5.7

In the first quarter 2013, depreciation and amortization was $466 million compared to $441 million for the corresponding period in 2012. The increase was primarily the result of an increase in depreciation related to additional plant in service due to the completion of Georgia Power's Plant McDonough-Atkinson Units 5 and 6 in April 2012 and October 2012, respectively, additional plant in service at Southern Power, as well as transmission, distribution, and environmental projects. These increases were partially offset by amortization of the regulatory liability previously established for state income tax credits at Georgia Power, as authorized by the Georgia PSC.

Taxes Other Than Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$10	4.4

In the first quarter 2013, taxes other than income taxes were $235 million compared to $225 million for the corresponding period in 2012. The increase was primarily the result of increases in property taxes and municipal franchise fees.

Estimated Loss on Kemper IGCC

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$540	N/M

N/M – Not meaningful

In the first quarter 2013, an estimated probable loss on the Kemper IGCC of $540 million was recorded at Southern Company to reflect a revision of estimated costs expected to be incurred on Mississippi Power's construction of the Kemper IGCC in excess of the $2.88 billion cost cap established by the Mississippi PSC, net of the DOE Grants and the Cost Cap Exceptions.

See FUTURE EARNINGS POTENTIAL – "Construction Program" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information.

Allowance for Equity Funds Used During Construction

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$10	32.3

In the first quarter 2013, AFUDC equity was $41 million compared to $31 million for the corresponding period in 2012. The increase was primarily due to an increase in CWIP related to Mississippi Power's Kemper IGCC, partially offset by the completion of Georgia Power's Plant McDonough-Atkinson Units 5 and 6 in April 2012 and October 2012, respectively. See Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information regarding the Kemper IGCC.

18

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Leveraged Lease Income (Loss)

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(27)	N/M

N/M – Not meaningful

In the first quarter 2013, leveraged lease income (loss) was $(21) million compared to $6 million for the corresponding period in 2012. The decrease was primarily due to the restructuring of a leveraged lease investment. See Note (J) to the Condensed Financial Statements under "Investments in Leveraged Leases" herein for additional information.

Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(169)	(84.5)

In the first quarter 2013, income taxes were $31 million compared to $200 million for the corresponding period in 2012. The decrease was primarily due to lower pre-tax earnings.

FUTURE EARNINGS POTENTIAL

The results of operations discussed above are not necessarily indicative of Southern Company's future earnings potential. The level of Southern Company's future earnings depends on numerous factors that affect the opportunities, challenges, and risks of the Southern Company system's primary business of selling electricity. These factors include the traditional operating companies' ability to maintain a constructive regulatory environment that continues to allow for the timely recovery of prudently-incurred costs during a time of increasing costs and the successful completion of ongoing construction projects, including construction of generating facilities. Another major factor is the profitability of the competitive wholesale supply business. Future earnings for the electricity business in the near term will depend, in part, upon maintaining energy sales which is subject to a number of factors. These factors include weather, competition, new energy contracts with neighboring utilities and other wholesale customers, energy conservation practiced by customers, the price of electricity, the price elasticity of demand, and the rate of economic growth or decline in the service territory. In addition, the level of future earnings for the wholesale supply business also depends on numerous factors including creditworthiness of customers, total generating capacity available and related costs, future acquisitions and construction of generating facilities, and the successful remarketing of capacity as current contracts expire. Changes in regional and global economic conditions may impact sales for the traditional operating companies and Southern Power, as the pace of the economic recovery remains uncertain. The timing and extent of the economic recovery will impact growth and may impact future earnings. For additional information relating to these issues, see RISK FACTORS in Item 1A and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL of Southern Company in Item 7 of the Form 10-K.

Environmental Matters

Compliance costs related to federal and state environmental statutes and regulations could affect earnings if such costs cannot continue to be fully recovered in rates on a timely basis. Environmental compliance spending over the next several years may differ materially from the amounts estimated. The timing, specific requirements, and estimated costs could change as environmental statutes and regulations are adopted or modified. Further, higher costs that are recovered through regulated rates could contribute to reduced demand for electricity, which could negatively affect results of operations, cash flows, and financial condition. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters" of Southern Company in

19

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Item 7 and Note 3 to the financial statements of Southern Company under "Environmental Matters" in Item 8 of the Form 10-K for additional information.

Environmental Statutes and Regulations

Air Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality" of Southern Company in Item 7 of the Form 10-K for additional information regarding Alabama's State Implementation Plan requirements related to opacity, the EPA's MATS rule, and the 2007 State of Georgia Multi-Pollutant Rule.

On March 6, 2013, the U.S. Court of Appeals for the Eleventh Circuit upheld the EPA's 2008 approval of Alabama's opacity requirements and vacated the EPA's 2011 attempt to rescind its approval, thereby resolving Alabama Power's appeal in Alabama Power's favor. The ultimate outcome of this matter will depend on the outcome of any further appellate or regulatory actions and cannot be determined at this time.

On April 24, 2013, the EPA published a final reconsideration rule addressing new source standards within the MATS rule. Although the EPA had considered revisions to the startup and shutdown provisions of the MATS rule, a final decision on these provisions was deferred. The ultimate impact of this rulemaking will depend on the outcome of any additional rulemaking and/or legal challenges and, therefore, cannot be determined at this time.

On April 30, 2013, the State of Georgia finalized revisions to the 2007 State of Georgia Multi-Pollutant Rule and a companion rule requiring a 95% reduction in sulfur dioxide emissions from certain coal-fired generating units. The revisions modify the compliance dates under those two rules for units yet to be controlled to synchronize them with the MATS rule compliance deadline. The revisions also allow natural gas to be used as a compliance alternative at Plant Yates as contemplated by the 2013 IRP. The ultimate outcome of these matters cannot be determined at this time. See Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Georgia Power – Integrated Resource Plans" in Item 8 of the Form 10-K for additional information. 

Water Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Water Quality" of Southern Company in Item 7 of the Form 10-K for additional information regarding the EPA's proposed revision of the current steam electric effluent guidelines. On April 19, 2013, the EPA signed a proposed rule which requests comments on a range of potential regulatory options for addressing certain wastestreams from steam electric power plants. These regulations could result in the installation of additional controls at certain of the facilities of Southern Company's subsidiaries, which could result in significant capital expenditures and compliance costs that could affect future unit retirement and replacement decisions. The ultimate impact of these proposed regulations will, however, depend on the specific requirements of the final rule and the outcome of any legal challenges and cannot be determined at this time.

PSC Matters

Retail Fuel Cost Recovery

The traditional operating companies each have established fuel cost recovery rates approved by their respective state PSCs. The traditional operating companies have experienced lower pricing for natural gas in recent years resulting in an increase in natural gas generation and a decrease in coal generation, which is currently more costly. The lower cost of natural gas has resulted in a total over recovered fuel balance at Alabama Power, Georgia Power, Gulf Power, and Mississippi Power included on Southern Company's Condensed Balance Sheet herein of approximately $269 million at March 31, 2013. At December 31, 2012, a total over recovered fuel balance at Georgia Power, Gulf Power, and Mississippi Power included on Southern Company's Condensed Balance Sheet herein was approximately $303 million.

20

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Fuel cost recovery revenues are adjusted for differences in actual recoverable fuel costs and amounts billed in current regulated rates. Accordingly, changes in the billing factor will not have a significant effect on Southern Company's revenues or net income, but will affect cash flow. The traditional operating companies continuously monitor their under or over recovered fuel cost balances.

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Fuel Cost Recovery" of Southern Company in Item 7 and Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Alabama Power – Energy Cost Recovery" and "Retail Regulatory Matters – Georgia Power – Fuel Cost Recovery" in Item 8 of the Form 10-K for additional information.

Alabama Power

Rate RSE

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Alabama Power – Rate RSE" of Southern Company in Item 7 and Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Alabama Power – Rate RSE" in Item 8 of the Form 10-K for additional information regarding Alabama Power's Rate Stabilization and Equalization (Rate RSE). On March 19, 2013, the Alabama PSC issued a notice that the Alabama PSC will hold public proceedings regarding the operation and utilization of Rate RSE. The ultimate outcome of these proceedings cannot be determined at this time.

Natural Disaster Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Alabama Power – Natural Disaster Reserve" of Southern Company in Item 7 and Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Alabama Power – Natural Disaster Reserve" in Item 8 of the Form 10-K for additional information regarding natural disaster cost recovery. At March 31, 2013, the NDR had an accumulated balance of $93 million as compared to $103 million at December 31, 2012, which is included on Southern Company's Condensed Balance Sheets herein under other regulatory liabilities, deferred. The decrease in the NDR in the first quarter 2013 is a result of storm activity. The related accruals are reflected as operations and maintenance expenses on Southern Company's Condensed Statement of Income herein.

Georgia Power

Integrated Resource Plans

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality," "– Water Quality," and "– Coal Combustion Byproducts" of Southern Company in Item 7 and Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Georgia Power – Rate Plans" and "– Integrated Resource Plans" in Item 8 of the Form 10-K for additional information regarding proposed and final EPA rules and regulations, including the MATS rule for coal- and oil-fired electric utility steam generating units, revisions to effluent guidelines for steam electric power plants, and additional regulation of coal combustion byproducts; the State of Georgia's Multi-Pollutant Rule; Georgia Power's analysis of the potential costs and benefits of installing the required controls on its fossil generating units in light of these regulations; the 2010 ARP; the 2011 IRP; and the 2013 IRP.

On April 17, 2013, the Georgia PSC approved the decertification of Plant Bowen Unit 6 (32 MWs), which was retired on April 25, 2013. The Georgia PSC is scheduled to vote on all other aspects of the 2013 IRP in July 2013. The ultimate outcome of this matter cannot be determined at this time.

Separately, on April 22, 2013, Georgia Power executed two PPAs to purchase energy from two wind farms with capacity totaling 250 MWs in southwest Oklahoma that will commence in 2016 and end in 2035. In addition, on April 29, 2013, Georgia Power executed a PPA for the purchase of 50 MWs of capacity and energy that will commence in 2015 and end in 2035. These PPAs are subject to Georgia PSC approval and, if approved, will result in contractual obligations of approximately $13 million in 2015, $47 million in 2016, $48 million in 2017, and $1.3 billion thereafter.

21

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Construction Program

The subsidiary companies of Southern Company are engaged in continuous construction programs to accommodate existing and estimated future loads on their respective systems. The Southern Company system intends to continue its strategy of developing and constructing new generating facilities, including the ongoing construction of Plant Vogtle Units 3 and 4 at Georgia Power, the Kemper IGCC at Mississippi Power, and solar units at Southern Power, as well as adding or changing fuel sources for certain existing units, adding environmental control equipment, and expanding the transmission and distribution systems. For the traditional operating companies, major generation construction projects are subject to state PSC approvals in order to be included in retail rates. While Southern Power generally constructs and acquires generation assets covered by long-term PPAs, any uncontracted capacity could negatively affect future earnings.

The two largest construction projects currently underway in the Southern Company system are Plant Vogtle Units 3 and 4 (45.7% ownership interest by Georgia Power in two units, each with approximately 1,100 MWs) and the construction of Mississippi Power's Kemper IGCC (for a total of 582 MWs). See FINANCIAL CONDITION AND LIQUIDITY – "Capital Requirements and Contractual Obligations" herein for the current cost estimate of the Southern Company system's construction program, which includes the revised construction cost estimate to complete the Kemper IGCC. Also see Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" and "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K and Note (B) to the Condensed Financial Statements under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" and "Integrated Coal Gasification Combined Cycle" herein for additional information.

Investments in Leveraged Leases

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Investments in Leveraged Leases" of Southern Company in Item 7 and Note 1 to the financial statements of Southern Company under "Leveraged Leases" in Item 8 of the Form 10-K for additional information.

On March 1, 2013, Southern Company completed the restructuring of the nonrecourse debt and the related rental payments associated with its leveraged lease investment in a 440-MW generation facility located in Choctaw County, Mississippi. In connection with the restructuring, Southern Company has committed, as owner/lessor, to invest approximately $60 million in capital over the next three years to improve the operational performance of the facility and upgrade environmental controls. As part of the restructuring, the interest rate on the nonrecourse debt was significantly reduced, resulting in lower debt payments for Southern Company and lower rental payments for the lessee over the remaining 19-year term of the nonrecourse debt and the lease. As a consequence of the restructuring, Southern Company recalculated its net investment in the lease to reflect changes in the future cash flows to Southern Company as owner/lessor. As a result of the recalculation, Southern Company recorded an after-tax charge to income during the first quarter 2013 of approximately $16 million. This noncash charge reflects a reallocation of previously recognized lease income that will be reflected in income over the remaining term of the lease.

Other Matters

Southern Company and its subsidiaries are involved in various other matters being litigated and regulatory matters that could affect future earnings. In addition, Southern Company and its subsidiaries are subject to certain claims and legal actions arising in the ordinary course of business. The business activities of Southern Company's subsidiaries are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent.

22

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The ultimate outcome of such pending or potential litigation against Southern Company and its subsidiaries cannot be predicted at this time; however, for current proceedings not specifically reported in Note (B) to the Condensed Financial Statements herein or in Note 3 to the financial statements of Southern Company in Item 8 of the Form 10-K, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on Southern Company's financial statements.

See the Notes to the Condensed Financial Statements herein for a discussion of various other contingencies, regulatory matters, and other matters being litigated which may affect future earnings potential.

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Other Matters" of Southern Company in Item 7 of the Form 10-K for additional information regarding the NRC's performance of additional operational and safety reviews of nuclear facilities in the U.S. following the major earthquake and tsunami that struck Japan in 2011. On March 19, 2013, the NRC issued an order relating to hardened vents for certain classes of containment structures, including the one in use at Plant Hatch. Southern Company is continuing to analyze the impact of this order. The ultimate outcome of this matter cannot be determined at this time; however, management does not currently anticipate that the compliance costs associated with this order would have a material impact on Southern Company's financial statements.

On April 4, 2013, an explosion occurred at Plant Bowen Unit 2 that resulted in substantial damage to the Plant Bowen Unit 2 generator, Plant Bowen's Units 1 and 2 control room and surrounding areas, as well as Plant Bowen's switchyard. The extent of the damage sustained by Plant Bowen Unit 1 is unknown. Plant Bowen Units 1 and 2 (approximately 1,400 MWs) remain offline, pending assessment of the damage and completion of repairs. Georgia Power expects that any material repair costs related to the damage will be covered by property insurance. The ultimate outcome of this matter cannot be determined at this time.

ACCOUNTING POLICIES

Application of Critical Accounting Policies and Estimates

Southern Company prepares its consolidated financial statements in accordance with GAAP. Significant accounting policies are described in Note 1 to the financial statements of Southern Company in Item 8 of the Form 10-K. In the application of these policies, certain estimates are made that may have a material impact on Southern Company's results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements. See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES – "Application of Critical Accounting Policies and Estimates" of Southern Company in Item 7 of the Form 10-K for a complete discussion of Southern Company's critical accounting policies and estimates related to Electric Utility Regulation, Contingent Obligations, and Pension and Other Postretirement Benefits.

Estimated Construction Costs for the Kemper IGCC

On April 23, 2013, Mississippi Power revised its cost estimate to complete construction of the Kemper IGCC to an amount that exceeds the $2.88 billion cost cap, net of the DOE Grants and the Cost Cap Exceptions. Mississippi Power does not intend to seek any joint owner contributions or rate recovery for any Kemper IGCC construction costs that exceed the $2.88 billion cost cap, except for amounts subject to the Cost Cap Exceptions and net of the DOE Grants. As a result, Southern Company recorded a pretax charge of $540 million in the first quarter 2013. In subsequent periods, any changes in the estimated costs to complete construction of the Kemper IGCC subject to the $2.88 billion cost cap will be reflected in Southern Company's statements of income and these changes could be material. Southern Company's analysis will be ongoing throughout the construction period. It is possible that Southern Company could experience further cost increases and/or schedule delays with respect to the Kemper IGCC as a result of factors including, but not limited to, costs and productivity of labor, adverse weather conditions, shortages and inconsistent quality of equipment, materials, and labor, contractor or supplier delay or non-performance under construction or other agreements, delays associated with start-up activities, and/or unforeseen engineering problems.

23

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Given the significant judgment involved in estimating the future costs to complete construction, schedule, and the ultimate rate recoverability for the Kemper IGCC, and the potential impact on Southern Company's results of operations, Southern Company considers the future total construction costs for the Kemper IGCC to be a critical accounting estimate. See FUTURE EARNINGS POTENTIAL – "Construction Program" of Southern Company in Item 7 of the Form 10-K, Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K, and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information.

FINANCIAL CONDITION AND LIQUIDITY

Overview

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Overview" of Southern Company in Item 7 of the Form 10-K for additional information. Southern Company's financial condition remained stable at March 31, 2013. Southern Company intends to continue to monitor its access to short-term and long-term capital markets as well as its bank credit arrangements to meet future capital and liquidity needs. See "Capital Requirements and Contractual Obligations," "Sources of Capital," and "Financing Activities" herein for additional information.

Net cash provided from operating activities totaled $737 million for the first three months of 2013, an increase of $169 million from the corresponding period in 2012. The increase in net cash provided from operating activities was primarily due to a reduction in fossil fuel stock. Net cash used for investing activities totaled $1.3 billion for the first three months of 2013 primarily due to property additions to utility plant. Net cash provided from financing activities totaled $429 million for the first three months of 2013. This was primarily due to long-term debt issuances. Fluctuations in cash flow from financing activities vary from year to year based on capital needs and the maturity or redemption of securities.

Significant balance sheet changes for the first three months of 2013 include an increase of $297 million in total property, plant, and equipment for construction of generation, transmission, and distribution facilities and a decrease in cash and cash equivalents of $113 million primarily due to an effort to reduce bank balances. Other significant changes include a $949 million increase in long-term debt (excluding amounts due within a year) to repay maturing debt and to fund the Southern Company subsidiaries' continuous construction programs, a $345 million decrease in retained earnings resulting from the estimated probable loss on the Kemper IGCC, a decrease of $272 million in accrued compensation primarily due to the payout in March of employee performance incentives earned in 2012, and a reduction in other accrued taxes of $183 million primarily due to payments of ad valorem taxes.

The market price of Southern Company's common stock at the end of the first quarter 2013 was $46.92 per share (based on the closing price as reported on the New York Stock Exchange) and the book value was $20.72 per share, representing a market-to-book ratio of 226%, compared to $42.81, $21.09, and 203%, respectively, at the end of 2012. The dividend for the first quarter 2013 was $0.49 per share compared to $0.4725 per share in the first quarter 2012. In April 2013, the quarterly dividend payable in June 2013 was increased to $0.5075 per share.

Capital Requirements and Contractual Obligations

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Capital Requirements and Contractual Obligations" of Southern Company in Item 7 of the Form 10-K for a description of Southern Company's capital requirements for the construction programs of the Southern Company system, including estimated capital expenditures for new generating facilities and to comply with existing environmental statutes and regulations, and other funding requirements associated with scheduled maturities of long-term debt, as well as the related interest, preferred and preference stock dividends, leases, trust funding requirements, other purchase commitments, unrecognized tax benefits and interest, and derivative obligations. Approximately $1.8 billion will be required through March 31, 2014 to fund maturities of long-term debt. See FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations" herein for additional information.

24

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The Southern Company system's construction program is currently estimated to be $5.9 billion for 2013, $6.0 billion for 2014, and $5.2 billion for 2015. Included in these estimated amounts are expenditures related to the construction of the Kemper IGCC of $913 million and $358 million in 2013 and 2014, respectively, which include the revised construction cost estimate to complete the Kemper IGCC and are net of SMEPA's 15% proposed ownership share of the Kemper IGCC, which reflects costs of approximately $492 million and $28 million in 2013 and 2014, respectively. The estimated share of SMEPA in 2013 reflects estimated construction costs relating to SMEPA's proposed ownership interest to be incurred through December 31, 2013 (including construction costs for all prior years relating to its proposed ownership interest).

The construction programs are subject to periodic review and revision, and actual construction costs may vary from these estimates because of numerous factors. These factors include: changes in business conditions; changes in load projections; changes in the expected environmental compliance program; changes in environmental statutes and regulations; the outcome of any legal challenges to the environmental rules; changes in generating plants, including unit retirements and replacements and adding or changing fuel sources at existing units, to meet regulatory requirements; changes in FERC rules and regulations; PSC approvals; changes in legislation; the cost and efficiency of construction labor, equipment, and materials; project scope and design changes; storm impacts; and the cost of capital. In addition, there can be no assurance that costs related to capital expenditures will be fully recovered. See Note 3 to the financial statements of Southern Company under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" and "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K and Note (B) to the Condensed Financial Statements under "PSC Matters – Georgia Power – Nuclear Construction" and "Integrated Coal Gasification Combined Cycle" herein for additional information.

Sources of Capital

Southern Company intends to meet its future capital needs through internal cash flow and external security issuances. Equity capital can be provided from any combination of Southern Company's stock plans, private placements, or public offerings. The amount and timing of additional equity capital to be raised in 2013, as well as in subsequent years, will be contingent on Southern Company's investment opportunities.

Except as described herein, the traditional operating companies and Southern Power plan to obtain the funds required for construction and other purposes from sources similar to those used in the past, which were primarily from operating cash flows, security issuances, term loans, short-term borrowings, and equity contributions from Southern Company. However, the amount, type, and timing of any future financings, if needed, will depend upon prevailing market conditions, regulatory approval, and other factors. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" of Southern Company in Item 7 of the Form 10-K for additional information.

In 2010, Georgia Power reached an agreement with the DOE to accept terms for a conditional commitment for federal loan guarantees that would apply to future Georgia Power borrowings related to the construction of Plant Vogtle Units 3 and 4. Any borrowings guaranteed by the DOE would be full recourse to Georgia Power and secured by a first priority lien on Georgia Power's 45.7% undivided ownership interest in Plant Vogtle Units 3 and 4. Total guaranteed borrowings would not exceed the lesser of 70% of eligible project costs or approximately $3.46 billion and are expected to be funded by the Federal Financing Bank. Final approval and issuance of loan guarantees by the DOE are subject to negotiation of definitive agreements, completion of due diligence by the DOE, receipt of any necessary regulatory approvals, and satisfaction of other conditions. In the event that the DOE does not issue a loan guarantee or Georgia Power determines that the final terms and conditions of the loan guarantee by the DOE are not in the best interest of its customers, Georgia Power expects to finance the construction of Plant Vogtle Units 3 and 4 through traditional capital markets financings. There can be no assurance that the DOE will issue loan guarantees for Georgia Power. The conditional commitment will expire on June 30, 2013, unless further extended by the DOE. See Note (B) to the Condensed Financial Statements under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" herein for additional information regarding Plant Vogtle Units 3 and 4.

Mississippi Power has received DOE Clean Coal Power Initiative Round 2 (CCPI2) grant funds of $245 million that have been used for the construction of the Kemper IGCC. An additional $25 million in CCPI2 grant funds is

25

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

expected to be received for the initial operation of the Kemper IGCC. See Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for information regarding legislation related to the securitization of certain costs of the Kemper IGCC.

Southern Company's current liabilities frequently exceed current assets because of the continued use of short-term debt as a funding source to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate significantly due to the seasonality of the business of the Southern Company system. To meet short-term cash needs and contingencies, Southern Company has substantial cash flow from operating activities and access to capital markets, including commercial paper programs which are backed by bank credit facilities.

At March 31, 2013, Southern Company and its subsidiaries had approximately $515 million of cash and cash equivalents. Committed credit arrangements with banks at March 31, 2013 were as follows:

	Expires(a)												Executable Term Loans				Due Within One Year
Company	2013		2014		2016		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
	(in millions)								(in millions)				(in millions)				(in millions)
Southern Company	$	—	$	—	$	—	$	1,000	$	1,000	$	1,000	$	—	$	—	$	—	$	—
Alabama Power	156		151		—		1,000		1,307		1,307		56		—		56		102
Georgia Power	—		—		150		1,600		1,750		1,740		—		—		—		—
Gulf Power	45		60		165		—		270		270		45		—		45		30
Mississippi Power	110		25		165		—		300		300		25		40		65		70
Southern Power	—		—		—		500		500		500		—		—		—		—
Other	50		—		—		—		50		50		25		—		25		25
Total	$	361	$	236	$	480	$	4,100	$	5,177	$	5,167	$	151	$	40	$	191	$	227

(a) No credit arrangements expire in 2015 or 2017.

See Note 6 to the financial statements of Southern Company under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

A portion of the unused credit with banks is allocated to provide liquidity support to the traditional operating companies' variable rate pollution control revenue bonds and commercial paper programs. The amount of variable rate pollution control revenue bonds outstanding requiring liquidity support as of March 31, 2013 was approximately $1.8 billion.

In February 2013, Southern Company, Alabama Power, Georgia Power, and Southern Power each amended their multi-year credit arrangements, which extended the maturity dates from 2016 to 2018.

In March 2013, Alabama Power amended a $200 million credit arrangement, which extended the maturity date from 2014 to 2018. In March 2013, Gulf Power also amended a $35 million credit arrangement, which reduced the amount to $30 million and extended the maturity date from 2013 to 2014. In addition, in March 2013, Georgia Power, Gulf Power, and Mississippi Power each amended certain of their credit arrangements, which extended the maturity dates from 2014 to 2016 and, in the case of Mississippi Power, also revised the definition of debt to exclude securitized debt relating to the Kemper IGCC for purposes of calculating the debt covenant under these credit arrangements. See Note (B) to the Condensed Financial Statements under ''Integrated Coal Gasification Combined Cycle'' herein for information regarding legislation related to the securitization of certain costs of the Kemper IGCC.

Subsequent to March 31, 2013, Gulf Power entered into a new credit arrangement for $5 million with a maturity date of 2014.

26

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Subsequent to March 31, 2013, SEGCO entered into two new $25 million credit arrangements with maturity dates of 2014.

Most of these arrangements contain covenants that limit debt levels and typically contain cross default provisions that are restricted only to the indebtedness of the individual company. Southern Company and its subsidiaries are currently in compliance with all such covenants.

The traditional operating companies may also meet short-term cash needs through a Southern Company subsidiary organized to issue and sell commercial paper at the request and for the benefit of each of the traditional operating companies.

Details of short-term borrowings were as follows:

	Short-term Debt at March 31, 2013(a)				Short-term Debt During the Period(a)(b)
	Amount Outstanding		Weighted Average Interest Rate		Average Outstanding		Weighted Average Interest Rate		Maximum Amount Outstanding
	(in millions)				(in millions)				(in millions)
Commercial paper	$	989	0.3	%	$	955	0.3	%	$	1,119
Short-term bank debt	300		0.9	%	87		0.9	%	300
Total	$	1,289	0.4	%	$	1,042	0.3	%

(a) Excludes notes payable related to other energy service contracts of $2 million.

(b) Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2013.

Management believes that the need for working capital can be adequately met by utilizing commercial paper programs, lines of credit, and cash.

Credit Rating Risk

Southern Company and its subsidiaries do not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change of certain subsidiaries to BBB and Baa2, or BBB- and/or Baa3 or below. These contracts are for physical electricity purchases and sales, fuel purchases, fuel transportation and storage, emissions allowances, energy price risk management, and construction of new generation.

The maximum potential collateral requirements under these contracts at March 31, 2013 were as follows:

Credit Ratings	Maximum Potential   Collateral Requirements
	(in millions)
At BBB and Baa2	$	9
At BBB- and/or Baa3	625
Below BBB- and/or Baa3	2,571

In March 2012, Mississippi Power received a $150 million interest-bearing refundable deposit from SMEPA to be applied to the sale price for the pending sale of an undivided interest in the Kemper IGCC. Until the acquisition is closed, the deposit bears interest at Mississippi Power's AFUDC rate adjusted for income taxes, which was 9.967% per annum for 2012 and 9.962% per annum at March 31, 2013, and is refundable to SMEPA upon termination of the asset purchase agreement related to such purchase, within 60 days of a request by SMEPA for a full or partial refund, or within 15 days at SMEPA's discretion in the event that Mississippi Power is assigned a

27

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

senior unsecured credit rating of BBB+ or lower by S&P or Baa1 or lower by Moody's or ceases to be rated by either of these rating agencies.

Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. Additionally, any credit rating downgrade could impact the ability of Southern Company and its subsidiaries to access capital markets, particularly the short-term debt market and the variable rate pollution control revenue bond market.

Market Price Risk

The Southern Company system is exposed to market risks, primarily commodity price risk and interest rate risk. The Southern Company system may also occasionally have limited exposure to foreign currency exchange rates. To manage the volatility attributable to these exposures, the applicable company nets the exposures, where possible, to take advantage of natural offsets and enters into various derivative transactions for the remaining exposures pursuant to the applicable company's policies in areas such as counterparty exposure and risk management practices. The Southern Company system's policy is that derivatives are to be used primarily for hedging purposes and mandates strict adherence to all applicable risk management policies. Derivative positions are monitored using techniques including, but not limited to, market valuation, value at risk, stress testing, and sensitivity analysis.

Due to cost-based rate regulation and other various cost recovery mechanisms, the traditional operating companies continue to have limited exposure to market volatility in interest rates, foreign currency, commodity fuel prices, and prices of electricity. In addition, Southern Power's exposure to market volatility in commodity fuel prices and prices of electricity is limited because its long-term sales contracts shift substantially all fuel cost responsibility to the purchaser. However, Southern Power has been and may continue to be exposed to market volatility in energy-related commodity prices as a result of sales of uncontracted generating capacity. To mitigate residual risks relative to movements in electricity prices, the traditional operating companies enter into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market and, to a lesser extent, financial hedge contracts for natural gas purchases. The traditional operating companies continue to manage fuel-hedging programs implemented per the guidelines of their respective state PSCs. Southern Company had no material change in market risk exposure for the first quarter 2013 when compared to the December 31, 2012 reporting period.

The changes in fair value of energy-related derivative contracts, the majority of which are composed of regulatory hedges, for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Contracts outstanding at the beginning of the period, assets (liabilities), net	$	(85	)
Contracts realized or settled	25
Current period changes(a)	47
Contracts outstanding at the end of the period, assets (liabilities), net	$	(13	)

(a) Current period changes also include the changes in fair value of new contracts entered into during the period, if any.

28

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The changes in the fair value positions of the energy-related derivative contracts, which are substantially all attributable to both the volume and the price of natural gas, for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Natural gas swaps	$	57
Natural gas options	15
Total changes	$	72

The net hedge volumes of energy-related derivative contracts were as follows:

		March 31, 2013	December 31, 2012
	mmBtu Volume
	(in millions)
Commodity – Natural gas swaps		170	171
Commodity – Natural gas options		89	105
Total hedge volume		259	276

The weighted average swap contract cost above market prices was approximately $0.05 per mmBtu as of March 31, 2013 and $0.39 per mmBtu as of December 31, 2012. The change in option fair value is primarily attributable to the volatility of the market and the underlying change in the natural gas price. The majority of the natural gas hedge gains and losses are recovered through the traditional operating companies' fuel cost recovery clauses.

The net fair value of energy-related derivative contracts by hedge designation was reflected in the financial statements as follows:

Asset (Liability) Derivatives	March 31, 2013			December 31, 2012
	(in millions)
Regulatory hedges	$	(17	)	$	(86	)
Cash flow hedges	—			—
Not designated	4			1
Total fair value	$	(13	)	$	(85	)

Energy-related derivative contracts which are designated as regulatory hedges relate to the traditional operating companies' fuel-hedging programs, where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as they are recovered through the fuel cost recovery clauses. Gains and losses on energy-related derivatives that are designated as cash flow hedges are mainly used by Southern Power to hedge anticipated purchases and sales and are initially deferred in OCI before being recognized in income in the same period as the hedged transaction. Gains and losses on energy-related derivative contracts that are not designated or fail to qualify as hedges are recognized in the statements of income as incurred.

Total net unrealized pre-tax gains (losses) recognized in the statements of income for the three months ended March 31, 2013 and 2012 were not material.

29

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Southern Company uses over-the-counter contracts that are not exchange traded but are fair valued using prices which are market observable, and thus fall into Level 2. See Note (C) to the Condensed Financial Statements herein for further discussion on fair value measurements. The maturities of the energy-related derivative contracts, which are all Level 2 of the fair value hierarchy, at March 31, 2013 were as follows:

	March 31, 2013 Fair Value Measurements
	Total			Maturity
	Fair Value			Year 1			Years 2&3			Years 4&5
	(in millions)
Level 1	$	—		$	—		$	—		$	—
Level 2	(13		)	(8		)	(5		)	—
Level 3	—			—			—			—
Fair value of contracts outstanding at end of period	$	(13	)	$	(8	)	$	(5	)	$	—

For additional information, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" of Southern Company in Item 7 and Note 1 under "Financial Instruments" and Note 11 to the financial statements of Southern Company in Item 8 of the Form 10-K and Note (H) to the Condensed Financial Statements herein.

Financing Activities

During the first quarter 2013, Southern Company issued approximately 2.6 million shares of common stock for approximately $54 million through the employee and director stock plans, of which 0.7 million shares related to Southern Company's performance share plan. Since mid-2011, Southern Company has issued additional equity only through its employee and director stock plans. In July 2012, Southern Company announced a program to repurchase shares to partially offset the incremental shares issued under its employee and director stock plans. As of December 31, 2012, Southern Company had repurchased a total of approximately 9 million shares at a total cost of approximately $430 million under this program. In January 2013, Southern Company announced that it plans to continue this program through 2015. There were no repurchases under this program in the first quarter 2013. Pursuant to approval by the Southern Company Board of Directors, Southern Company may repurchase shares through open market purchases or privately negotiated transactions, in accordance with applicable securities laws.

In addition, Southern Company is not currently issuing shares of common stock through the Southern Investment Plan or its employee savings plan. All sales under the Southern Investment Plan and the employee savings plan are currently being funded with shares acquired on the open market by the independent plan administrators.

The following table outlines the long-term debt financing activities for Southern Company, the traditional operating companies, and Southern Power for the first three months of 2013:

Company(a)	Senior Note Issuances		Senior Note Redemptions and Maturities		Revenue Bond Issuances		Other Long-Term Debt Issuances
					(in millions)
Georgia Power	$	650	$	650	$	18	$	—
Mississippi Power	—		—		16		350
Southern Power	—		—		—		2
Total	$	650	$	650	$	34	$	352

(a) Southern Company, Alabama Power, and Gulf Power did not issue or redeem any long-term debt during the first quarter 2013.

30

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Southern Company's subsidiaries used the proceeds of the debt issuances shown in the table above for the redemptions and maturities shown in the table above, to repay short-term indebtedness, and for general corporate purposes, including their respective continuous construction programs.

In March 2013, Georgia Power entered into three 60-day floating rate bank loans bearing interest based on one-month LIBOR. Each of these short-term loans was for $100 million aggregate principal amount and the proceeds were used for working capital and other general corporate purposes, including Georgia Power's continuous construction program.

Subsequent to March 31, 2013, $17.5 million aggregate principal amount of Development Authority of Monroe County Pollution Control Revenue Bonds (Georgia Power Company Plant Scherer Project), Second Series 1997 were redeemed.

Also subsequent to March 31, 2013, Southern Power issued a $5.6 million promissory note, due April 30, 2033, to Turner Renewable Energy, LLC related to the financing of the acquisition by Southern Power of Campo Verde Solar, LLC, which is constructing a 139-MW solar photovoltaic facility in Southern California. See Note (I) to the Condensed Financial Statements herein for additional information.

In addition to any financings that may be necessary to meet capital requirements and contractual obligations, Southern Company and its subsidiaries plan to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

31

PART I

Item 3. Quantitative And Qualitative Disclosures About Market Risk.

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" herein for each registrant and Note 1 to the financial statements of each registrant under "Financial Instruments," Note 11 to the financial statements of Southern Company, Alabama Power, and Georgia Power, Note 10 to the financial statements of Gulf Power and Mississippi Power, and Note 9 to the financial statements of Southern Power in Item 8 of the Form 10-K. Also, see Note (H) to the Condensed Financial Statements herein for information relating to derivative instruments.

Item 4. Controls and Procedures.

(a) Evaluation of disclosure controls and procedures.

Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power

As of the end of the period covered by this quarterly report, Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power conducted separate evaluations under the supervision and with the participation of each company's management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures (as defined in Sections 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934). Based upon these evaluations, the Chief Executive Officer and the Chief Financial Officer, in each case, concluded that the disclosure controls and procedures are effective.  

Mississippi Power

As described further in Notes 3 and 12 to the financial statements of Mississippi Power in Item 8 and Management's Report on Internal Control Over Financial Reporting in Item 9A of the Form 10-K/A, Mississippi Power restated and corrected its previously issued financial statements for the year ended December 31, 2012 to recognize a pretax charge for an estimated probable loss relating to the Kemper IGCC. Management believes Mississippi Power's failure to maintain sufficient evidence supporting certain estimated amounts included in the Kemper IGCC cost estimate and to fully communicate the related effects in the development of the Kemper IGCC cost estimate would constitute a material weakness in internal control over financial reporting under standards adopted by the Public Company Accounting Oversight Board and concluded Mississippi Power's internal control over financial reporting was not effective as of December 31, 2012.

As of the end of the period covered by this quarterly report, Mississippi Power conducted an evaluation under the supervision and with the participation of management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures (as defined in Sections 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934). Based upon this evaluation, which considered the material weakness described above, the Chief Executive Officer and the Chief Financial Officer concluded that the disclosure controls and procedures were not effective.

Management has initiated appropriate actions to remediate the material weakness in internal control over financial reporting. Such actions include, but are not limited to, the following:

• establishing a new governance team focused on accounting, legal, and regulatory affairs that will meet regularly with the Kemper IGCC project and construction teams and will provide further oversight of the Kemper IGCC cost estimation process;

• reemphasizing and enhancing communication across functional areas and departments; and

• applying appropriate performance management actions.

Remediation of the material weakness is expected to be completed during the second quarter 2013.

(b) Changes in internal controls.

There have been no changes in Southern Company's, Alabama Power's, Georgia Power's, Gulf Power's, Mississippi Power's, or Southern Power's internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934) during the first quarter 2013 that have materially affected or are reasonably likely to materially affect Southern Company's, Alabama Power's, Georgia Power's, Gulf Power's, Mississippi Power's, or Southern Power's internal control over financial reporting.

32

ALABAMA POWER COMPANY

33

ALABAMA POWER COMPANY

CONDENSED STATEMENTS OF INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Operating Revenues:
Retail revenues	$	1,141		$	1,092
Wholesale revenues, non-affiliates	59			61
Wholesale revenues, affiliates	56			14
Other revenues	52			49
Total operating revenues	1,308			1,216
Operating Expenses:
Fuel	372			306
Purchased power, non-affiliates	20			15
Purchased power, affiliates	31			40
Other operations and maintenance	330			321
Depreciation and amortization	158			157
Taxes other than income taxes	90			86
Total operating expenses	1,001			925
Operating Income	307			291
Other Income and (Expense):
Allowance for equity funds used during construction	8			5
Interest expense, net of amounts capitalized	(66		)	(73		)
Other income (expense), net	(1		)	(3		)
Total other income and (expense)	(59		)	(71		)
Earnings Before Income Taxes	248			220
Income taxes	97			84
Net Income	151			136
Dividends on Preferred and Preference Stock	10			10
Net Income After Dividends on Preferred and Preference Stock	$	141		$	126

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013		2012
	(in millions)
Net Income	$	151	$	136
Other comprehensive income (loss):
Qualifying hedges:
Changes in fair value, net of tax of $- and $3, respectively	—		4
Total other comprehensive income (loss)	—		4
Comprehensive Income	$	151	$	140

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

34

ALABAMA POWER COMPANY

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Operating Activities:
Net income	$	151		$	136
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	206			189
Deferred income taxes	25			31
Allowance for equity funds used during construction	(8		)	(5		)
Stock based compensation expense	4			4
Other, net	5			(11		)
Changes in certain current assets and liabilities —
-Receivables	(13		)	89
-Fossil fuel stock	28			(81		)
-Materials and supplies	16			2
-Other current assets	(71		)	(51		)
-Accounts payable	(124		)	(149		)
-Accrued taxes	90			43
-Accrued compensation	(61		)	(63		)
-Retail fuel cost over recovery	21			1
-Other current liabilities	1			5
Net cash provided from operating activities	270			140
Investing Activities:
Property additions	(274		)	(244		)
Nuclear decommissioning trust fund purchases	(57		)	(49		)
Nuclear decommissioning trust fund sales	57			49
Cost of removal, net of salvage	(9		)	(6		)
Change in construction payables	(1		)	14
Other investing activities	37			1
Net cash used for investing activities	(247		)	(235		)
Financing Activities:
Increase in notes payable, net	45			—
Proceeds —
Capital contributions from parent company	5			5
Senior notes issuances	—			250
Payment of preferred and preference stock dividends	(10		)	(10		)
Payment of common stock dividends	(132		)	(135		)
Other financing activities	(3		)	(4		)
Net cash provided from (used for) financing activities	(95		)	106
Net Change in Cash and Cash Equivalents	(72		)	11
Cash and Cash Equivalents at Beginning of Period	137			344
Cash and Cash Equivalents at End of Period	$	65		$	355
Supplemental Cash Flow Information:
Cash paid (received) during the period for —
Interest (net of $3 and $2 capitalized for 2013 and 2012, respectively)	$	64		$	66
Income taxes, net	(3		)	22
Noncash transactions—accrued property additions at end of period	30			32

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

35

ALABAMA POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Assets	At March 31, 2013			At December 31, 2012
	(in millions)
Current Assets:
Cash and cash equivalents	$	65		$	137
Receivables —
Customer accounts receivable	349			321
Unbilled revenues	122			138
Under recovered regulatory clause revenues	11			23
Other accounts and notes receivable	35			42
Affiliated companies	74			55
Accumulated provision for uncollectible accounts	(8		)	(8		)
Fossil fuel stock, at average cost	447			475
Materials and supplies, at average cost	370			395
Vacation pay	61			61
Prepaid expenses	121			81
Other regulatory assets, current	13			24
Other current assets	14			13
Total current assets	1,674			1,757
Property, Plant, and Equipment:
In service	21,508			21,407
Less accumulated provision for depreciation	7,816			7,761
Plant in service, net of depreciation	13,692			13,646
Nuclear fuel, at amortized cost	356			354
Construction work in progress	535			438
Total property, plant, and equipment	14,583			14,438
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	54			53
Nuclear decommissioning trusts, at fair value	642			605
Miscellaneous property and investments	78			78
Total other property and investments	774			736
Deferred Charges and Other Assets:
Deferred charges related to income taxes	524			525
Deferred under recovered regulatory clause revenues	15			11
Other regulatory assets, deferred	1,071			1,083
Other deferred charges and assets	128			162
Total deferred charges and other assets	1,738			1,781
Total Assets	$	18,769		$	18,712

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

36

ALABAMA POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Liabilities and Stockholder's Equity	At March 31, 2013			At December 31, 2012
	(in millions)
Current Liabilities:
Securities due within one year	$	250		$	250
Notes payable	45			—
Accounts payable —
Affiliated	188			191
Other	204			318
Customer deposits	86			85
Accrued taxes —
Accrued income taxes	73			5
Other accrued taxes	56			33
Accrued interest	60			62
Accrued vacation pay	50			50
Accrued compensation	36			94
Liabilities from risk management activities	5			14
Other regulatory liabilities, current	29			3
Other current liabilities	38			38
Total current liabilities	1,120			1,143
Long-term Debt	5,929			5,929
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	3,418			3,404
Deferred credits related to income taxes	78			79
Accumulated deferred investment tax credits	139			141
Employee benefit obligations	319			321
Asset retirement obligations	599			589
Other cost of removal obligations	773			759
Other regulatory liabilities, deferred	203			183
Other deferred credits and liabilities	91			81
Total deferred credits and other liabilities	5,620			5,557
Total Liabilities	12,669			12,629
Redeemable Preferred Stock	342			342
Preference Stock	343			343
Common Stockholder's Equity:
Common stock, par value $40 per share —
Authorized - 40,000,000 shares
Outstanding - 30,537,500 shares	1,222			1,222
Paid-in capital	2,236			2,227
Retained earnings	1,984			1,976
Accumulated other comprehensive loss	(27		)	(27		)
Total common stockholder's equity	5,415			5,398
Total Liabilities and Stockholder's Equity	$	18,769		$	18,712

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

37

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FIRST QUARTER 2013 vs. FIRST QUARTER 2012

OVERVIEW

Alabama Power operates as a vertically integrated utility providing electricity to retail and wholesale customers within its traditional service territory located within the State of Alabama in addition to wholesale customers in the Southeast. Many factors affect the opportunities, challenges, and risks of Alabama Power's business of selling electricity. These factors include the ability to maintain a constructive regulatory environment, to maintain and grow energy sales given economic conditions, and to effectively manage and secure timely recovery of costs. These costs include those related to projected long-term demand growth, increasingly stringent environmental standards, fuel, capital expenditures, and restoration following major storms. Appropriately balancing required costs and capital expenditures with customer prices will continue to challenge Alabama Power for the foreseeable future.

Alabama Power continues to focus on several key performance indicators. These indicators include customer satisfaction, plant availability, system reliability, and net income after dividends on preferred and preference stock. For additional information on these indicators, see MANAGEMENT'S DISCUSSION AND ANALYSIS – OVERVIEW – "Key Performance Indicators" of Alabama Power in Item 7 of the Form 10-K.

RESULTS OF OPERATIONS

Net Income

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$15	11.9

Alabama Power's net income after dividends on preferred and preference stock for the first quarter 2013 was $141 million compared to $126 million for the corresponding period in 2012. The increase for the first quarter 2013 was primarily related to an increase in weather-related revenues due to more favorable weather in the first quarter 2013 as compared to the corresponding period in 2012, partially offset by increases in other operations and maintenance expenses.

Retail Revenues

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$49	4.5

In the first quarter 2013, retail revenues were $1.14 billion compared to $1.09 billion for the corresponding period in 2012.

38

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Details of the change to retail revenues were as follows:

	First Quarter 2013
	(in millions)			(% change)
Retail – prior year	$	1,092
Estimated change in –
Rates and pricing	(1		)	(0.1	)
Sales growth (decline)	(9		)	(0.9	)
Weather	39			3.6
Fuel and other cost recovery	20			1.9
Retail – current year	$	1,141		4.5	%

Revenues associated with changes in rates and pricing decreased slightly in the first quarter 2013 when compared to the corresponding period in 2012. The decrease was not material.

Revenues attributable to changes in sales decreased in the first quarter 2013 when compared to the corresponding period in 2012. Weather-adjusted residential and commercial KWH energy sales decreased 2.4% and 0.4%, respectively, due to decreases in customer usage. Industrial KWH energy sales increased 0.4% due to an increase in usage resulting from changes in production levels primarily in the stone, clay, and glass and primary metal sectors. In addition, an extra day of sales as a result of the leap year in 2012 negatively impacted KWH sales in all customer classes in 2013.

Revenues resulting from changes in weather increased in the first quarter 2013 when compared to the corresponding period in 2012. Alabama Power's service territory experienced more favorable weather in the first quarter 2013 as compared to the corresponding period in 2012. As a result, residential sales revenues increased 8.5% in the first quarter 2013 as compared to the corresponding period in 2012.

Fuel and other cost recovery revenues increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to an increase in fuel costs associated with an increase in KWH generation. Electric rates include provisions to recognize the full recovery of fuel costs, purchased power costs, PPAs certificated by the Alabama PSC, and costs associated with the NDR. Under these provisions, fuel and other cost recovery revenues generally equal fuel and other cost recovery expenses and do not affect net income.

Wholesale Revenues – Non-Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(2)	(3.3)

Wholesale revenues from sales to non-affiliates will vary depending on the market prices of available wholesale energy compared to the cost of Alabama Power's and the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and availability of the Southern Company system's generation. Increases and decreases in energy revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income.

In the first quarter 2013, the decrease in wholesale revenues from non-affiliates compared to the corresponding period in 2012 was not material.

39

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Wholesale Revenues – Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$42	300.0

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. These affiliate sales are made in accordance with the IIC, as approved by the FERC. These transactions do not have a significant impact on earnings since this energy is generally sold at marginal cost and energy purchases are generally offset by energy revenues through Alabama Power's energy cost recovery clauses.

In the first quarter 2013, wholesale revenues from affiliates were $56 million compared to $14 million for the corresponding period in 2012. The increase was primarily due to a 262.4% increase in KWH sales and a 9.5% increase in the price of energy.

Fuel and Purchased Power Expenses

	First Quarter 2013 vs. First Quarter 2012
	(change in millions)			(% change)
Fuel	$	66		21.6
Purchased power – non-affiliates	5			33.3
Purchased power – affiliates	(9		)	(22.5	)
Total fuel and purchased power expenses	$	62

In the first quarter 2013, total fuel and purchased power expenses were $423 million compared to $361 million for the corresponding period in 2012. The increase was primarily due to a $62 million increase associated with an increase in the volume of KWHs generated as a result of more favorable weather in first quarter 2013, a $5 million increase in the average cost of fuel, and a $4 million increase in the average cost of purchased power, partially offset by an $8 million decrease related to the volume of KWHs purchased.

Fuel and purchased power energy transactions do not have a significant impact on earnings, since energy expenses are generally offset by energy revenues through Alabama Power's energy cost recovery clauses. Alabama Power, along with the Alabama PSC, continuously monitors the under/over recovered balance to determine whether adjustments to billings rates are required. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Retail Energy Cost Recovery" herein for additional information.

40

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Details of Alabama Power's generation and purchased power were as follows:

	First Quarter 2013	First Quarter 2012
Total generation (billions of KWHs)	16	14
Total purchased power (billions of KWHs)	1	1
Sources of generation (percent) –
Coal	47	42
Nuclear	24	27
Gas	17	20
Hydro	12	11
Cost of fuel, generated (cents per net KWH) –
Coal	3.35	3.43
Nuclear	0.81	0.74
Gas	3.31	3.00
Average cost of fuel, generated (cents per net KWH)(a)	2.65	2.51
Average cost of purchased power (cents per net KWH)(b)	4.96	4.60

(a) KWHs generated by hydro are excluded from the average cost of fuel, generated.

(b) Average cost of purchased power includes fuel purchased by Alabama Power for tolling agreements where power is generated by the provider.

Fuel

In the first quarter 2013, fuel expense was $372 million compared to $306 million for the corresponding period in 2012. The $66 million increase was primarily due to a 31.4% increase in KWHs generated by coal and a 10.3% increase in the average cost of natural gas per KWH generated, which excludes fuel associated with tolling agreements. This increase was offset by a 31.5% increase in the volume of KWHs generated by hydro facilities resulting from greater rainfall.

Purchased Power – Non-Affiliates

In the first quarter 2013, purchased power expense from non-affiliates was $20 million compared to $15 million for the corresponding period in 2012. The increase was related to a 73.0% increase in the amount of energy purchased, partially offset by a 23.4% decrease in the average cost per KWH.

Energy purchases from non-affiliates will vary depending on the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation.

Purchased Power – Affiliates

In the first quarter 2013, purchased power expense from affiliates was $31 million compared to $40 million for the corresponding period in 2012. The decrease was related to a 48.2% decrease in the volume of KWHs purchased, partially offset by a 47.5% increase in the average cost per KWH.

Energy purchases from affiliates will vary depending on demand for energy and the availability and cost of generating resources at each company within the Southern Company system. These purchases are made in accordance with the IIC or other contractual agreements, as approved by the FERC.

41

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Other Operations and Maintenance Expenses

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$9	2.8

In the first quarter 2013, other operations and maintenance expenses were $330 million compared to $321 million for the corresponding period in 2012. Nuclear production expenses increased $6 million primarily due to the amortization of nuclear outage expenses. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Nuclear Outage Accounting Order" of Alabama Power in Item 7 of the Form 10-K for additional information. Administrative and general expenses increased $3 million primarily due to increases in employee medical and pension expenses, partially offset by a decrease in labor and other general expenses.

Allowance for Funds Used During Construction Equity

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$3	60.0

In the first quarter 2013, AFUDC equity was $8 million compared to $5 million for the corresponding period in 2012. The increase was primarily due to an increase in capital expenditures for steam generating and environmental, transmission, and nuclear generating facilities.

Interest Expense, Net of Amounts Capitalized

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(7)	(9.6)

In the first quarter 2013, interest expense, net of amounts capitalized was $66 million compared to $73 million for the corresponding period in 2012.The decrease was primarily due to a decrease in interest rates and the timing of issuances and redemptions of long term-debt.

Other Income (Expense), Net

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$2	66.7

In the first quarter 2013, other income (expense), net was $(1) million compared to $(3) million for the corresponding period in 2012. The change was primarily due to an increase in non-operating income related to gains on sales of non-utility property.

Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$13	15.5

In the first quarter 2013, income taxes were $97 million compared to $84 million for the corresponding period in 2012. The increase was primarily due to higher pre-tax income as a result of increased weather-related revenues.

42

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FUTURE EARNINGS POTENTIAL

The results of operations discussed above are not necessarily indicative of Alabama Power's future earnings potential. The level of Alabama Power's future earnings depends on numerous factors that affect the opportunities, challenges, and risks of Alabama Power's primary business of selling electricity. These factors include Alabama Power's ability to maintain a constructive regulatory environment that continues to allow for the timely recovery of prudently incurred costs during a time of increasing costs. Future earnings in the near term will depend, in part, upon maintaining energy sales which is subject to a number of factors. These factors include weather, competition, new energy contracts with neighboring utilities, energy conservation practiced by customers, the price of electricity, the price elasticity of demand, and the rate of economic growth or decline in Alabama Power's service territory. Changes in regional and global economic conditions may impact sales for Alabama Power as the pace of the economic recovery remains uncertain. The timing and extent of the economic recovery will impact growth and may impact future earnings. For additional information relating to these issues, see RISK FACTORS in Item 1A and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL of Alabama Power in Item 7 of the Form 10-K.

Environmental Matters

Compliance costs related to federal and state environmental statutes and regulations could affect earnings if such costs cannot continue to be fully recovered in rates on a timely basis. Environmental compliance spending over the next several years may differ materially from the amounts estimated. The timing, specific requirements, and estimated costs could change as environmental statutes and regulations are adopted or modified. Further, higher costs that are recovered through regulated rates could contribute to reduced demand for electricity, which could negatively affect results of operations, cash flows, and financial condition. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters" of Alabama Power in Item 7 and Note 3 to the financial statements of Alabama Power under "Environmental Matters" in Item 8 of the Form 10-K for additional information.

Environmental Statutes and Regulations

Air Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality" of Alabama Power in Item 7 of the Form 10-K for additional information regarding Alabama's State Implementation Plan requirements related to opacity and the EPA's MATS rule.

On March 6, 2013, the U.S. Court of Appeals for the Eleventh Circuit upheld the EPA's 2008 approval of Alabama's opacity requirements and vacated the EPA's 2011 attempt to rescind its approval, thereby resolving Alabama Power's appeal in Alabama Power's favor. The ultimate outcome of this matter will depend on the outcome of any further appellate or regulatory actions and cannot be determined at this time.

On April 24, 2013, the EPA published a final reconsideration rule addressing new source standards within the MATS rule. Although the EPA had considered revisions to the startup and shutdown provisions of the MATS rule, a final decision on these provisions was deferred. The ultimate impact of this rulemaking will depend on the outcome of any additional rulemaking and/or legal challenges and, therefore, cannot be determined at this time.

Water Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Water Quality" of Alabama Power in Item 7 of the Form 10-K for additional information regarding the EPA's proposed revision of the current steam electric effluent guidelines. On April 19, 2013, the EPA signed a proposed rule which requests comments on a range of potential regulatory options for addressing certain wastestreams from steam electric power plants. These regulations could result in the installation of additional controls at certain of Alabama Power's facilities, which could result in significant capital expenditures and compliance costs that could affect future unit retirement and replacement decisions. The ultimate

43

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

impact of these proposed regulations will, however, depend on the specific requirements of the final rule and the outcome of any legal challenges and cannot be determined at this time.

FERC Matters

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "FERC Matters" of Alabama Power in Item 7 of the Form 10-K for additional information on Alabama Power's Warrior River hydroelectric license.

On March 18, 2013, the Smith Lake Improvement and Stakeholders' Association filed an appeal to the U.S. Court of Appeals for the District of Columbia Circuit regarding the FERC's orders related to the Warrior River relicensing proceedings. The ultimate outcome of this matter cannot be determined at this time.

PSC Matters

Rate RSE

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Rate RSE" of Alabama Power in Item 7 and Note 3 to the financial statements of Alabama Power under "Retail Regulatory Matters – Rate RSE" in Note 8 of the Form 10-K for additional information on Alabama Power's Rate Stabilization and Equalization (Rate RSE). On March 19, 2013, the Alabama PSC issued a notice that the Alabama PSC will hold public proceedings regarding the operation and utilization of Rate RSE. The ultimate outcome of these proceedings cannot be determined at this time.

Rate CNP

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Retail Rate Adjustments – Rate CNP" of Alabama Power in Item 7 and Note 3 to the financial statements of Alabama Power under "Retail Regulatory Matters – Rate CNP" in Item 8 of the Form 10-K for additional information regarding Alabama Power's recovery of retail costs through Rate Certificated New Plant Power Purchase Agreement (Rate CNP PPA) and Rate Certificated New Plant Environmental (Rate CNP Environmental). Alabama Power's under recovered Rate CNP PPA balance at March 31, 2013 was $7 million as compared to $9 million at December 31, 2012. This under recovered balance at March 31, 2013 is included in deferred under recovered regulatory clause revenues on Alabama Power's Condensed Balance Sheet herein. For Rate CNP PPA, this classification is based on an estimate, which includes such factors as purchased power capacity and energy demand. A change in any of these factors could have a material impact on the timing of any recovery of the under recovered retail costs. Alabama Power's under recovered Rate CNP Environmental balance at March 31, 2013 was $19 million as compared to $21 million at December 31, 2012. This under recovered balance at March 31, 2013 consists of $11 million in under recovered regulatory clause revenues and $8 million in deferred under recovered regulatory clause revenues on Alabama Power's Condensed Balance Sheet herein. For Rate CNP Environmental, this classification is based on an estimate, which includes such factors as costs to comply with environmental mandates and energy demand. A change in any of these factors could have a material impact on the timing of any recovery of the under recovered retail costs.

Retail Energy Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Energy Cost Recovery" of Alabama Power in Item 7 and Note 3 to the financial statements of Alabama Power under "Retail Regulatory Matters – Energy Cost Recovery" in Item 8 of the Form 10-K for information regarding Alabama Power's energy cost recovery. Alabama Power's over recovered fuel costs at March 31, 2013 totaled $21 million as compared to an under recovered balance of $4 million at December 31, 2012. The over recovered fuel costs at March 31, 2013 are included in other regulatory liabilities, current and the under recovered fuel costs at December 31, 2012 are included in deferred under recovered regulatory clause revenues on Alabama Power's Condensed Balance Sheet herein. These classifications are based on estimates, which include such factors as

44

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

weather, generation availability, energy demand, and the price of energy. A change in any of these factors could have a material impact on the timing of any return of the over recovered fuel costs.

Natural Disaster Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Natural Disaster Reserve" of Alabama Power in Item 7 and Note 3 to the financial statements of Alabama Power under "Retail Regulatory Matters – Natural Disaster Reserve" in Item 8 of the Form 10-K for additional information regarding natural disaster cost recovery. At March 31, 2013, the NDR had an accumulated balance of $93 million as compared to $103 million at December 31, 2012, which is included on Alabama Power's Condensed Balance Sheet herein under other regulatory liabilities, deferred. The decrease in the NDR in the first quarter 2013 is a result of storm activity. The related accruals are reflected as operations and maintenance expenses on Alabama Power's Condensed Statement of Income herein.

Other Matters

Alabama Power is involved in various other matters being litigated and regulatory matters that could affect future earnings. In addition, Alabama Power is subject to certain claims and legal actions arising in the ordinary course of business. Alabama Power's business activities are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent.

The ultimate outcome of such pending or potential litigation against Alabama Power cannot be predicted at this time; however, for current proceedings not specifically reported in Note (B) to the Condensed Financial Statements herein or in Note 3 to the financial statements of Alabama Power in Item 8 of the Form 10-K, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on Alabama Power's financial statements.

See the Notes to the Condensed Financial Statements herein for a discussion of various other contingencies, regulatory matters, and other matters being litigated which may affect future earnings potential.

ACCOUNTING POLICIES

Application of Critical Accounting Policies and Estimates

Alabama Power prepares its financial statements in accordance with GAAP. Significant accounting policies are described in Note 1 to the financial statements of Alabama Power in Item 8 of the Form 10-K. In the application of these policies, certain estimates are made that may have a material impact on Alabama Power's results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements. See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES – "Application of Critical Accounting Policies and Estimates" of Alabama Power in Item 7 of the Form 10-K for a complete discussion of Alabama Power's critical accounting policies and estimates related to Electric Utility Regulation, Contingent Obligations, and Pension and Other Postretirement Benefits.

45

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FINANCIAL CONDITION AND LIQUIDITY

Overview

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Overview" of Alabama Power in Item 7 of the Form 10-K for additional information. Alabama Power's financial condition remained stable at March 31, 2013. Alabama Power intends to continue to monitor its access to short-term and long-term capital markets as well as its bank credit arrangements to meet future capital and liquidity needs. See "Sources of Capital," "Financing Activities," and "Capital Requirements and Contractual Obligations" herein for additional information.

Net cash provided from operating activities totaled $270 million for the first three months of 2013, an increase of $130 million as compared to the first three months of 2012. The increase in net cash provided from operating activities was primarily due to a decrease in fossil fuel stock, an increase in accounts payable as compared to the first three months of 2012, and the timing of income tax payments and refunds. This was partially offset by an increase in receivables. Net cash used for investing activities totaled $247 million for the first three months of 2013 primarily due to gross property additions related to steam generation, transmission, and distribution equipment. Net cash used for financing activities totaled $95 million for the first three months of 2013 primarily due to the payment of common stock dividends, partially offset by an increase in notes payable. Fluctuations in cash flow from financing activities vary year to year based on capital needs and the maturity or redemption of securities.

Significant balance sheet changes for the first three months of 2013 include increases of $145 million in property, plant, and equipment associated with routine property additions and $68 million in accrued income taxes and decreases of $114 million in other accounts payable and $72 million in cash and cash equivalents.

Capital Requirements and Contractual Obligations

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Capital Requirements and Contractual Obligations" of Alabama Power in Item 7 of the Form 10-K for a description of Alabama Power's capital requirements for its construction program, including estimated capital expenditures to comply with existing environmental statutes and regulations, scheduled maturities of long-term debt, as well as the related interest, derivative obligations, preferred and preference stock dividends, leases, purchase commitments, trust funding requirements, and unrecognized tax benefits. See FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations" herein for additional information. Approximately $250 million will be required through March 31, 2014 to fund maturities of long-term debt.

The construction program is subject to periodic review and revision, and actual construction costs may vary from these estimates because of numerous factors. These factors include: changes in business conditions; changes in load projections; changes in environmental statutes and regulations; the outcome of any legal challenges to the environmental rules; changes in generating plants, including unit retirements and replacements and adding or changing fuel sources at existing units, to meet regulatory requirements; changes in the expected environmental compliance program; changes in FERC rules and regulations; Alabama PSC approvals; changes in legislation; the cost and efficiency of construction labor, equipment, and materials; project scope and design changes; storm impacts; and the cost of capital. In addition, there can be no assurance that costs related to capital expenditures will be fully recovered.

46

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Sources of Capital

Alabama Power plans to obtain the funds required for construction and other purposes from sources similar to those used in the past. Alabama Power has primarily utilized funds from operating cash flows, short-term debt, security issuances, and equity contributions from Southern Company. However, the amount, type, and timing of any future financings, if needed, will depend upon regulatory approval, prevailing market conditions, and other factors. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" of Alabama Power in Item 7 of the Form 10-K for additional information.

Alabama Power's current liabilities sometimes exceed current assets because of Alabama Power's debt due within one year and the periodic use of short-term debt as a funding source primarily to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate significantly due to the seasonality of the business.

At March 31, 2013, Alabama Power had approximately $65 million of cash and cash equivalents. Committed credit arrangements with banks at March 31, 2013 were as follows:

Expires(a)										Executable Term Loans				Due Within One Year
2013		2014		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
(in millions)						(in millions)				(in millions)				(in millions)
$	156	$	151	$	1,000	$	1,307	$	1,307	$	56	$	—	$	56	$	102

(a) No credit arrangements expire in 2015, 2016, or 2017.

See Note 6 to the financial statements of Alabama Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

These credit arrangements provide liquidity support to Alabama Power's commercial paper borrowings and variable rate pollution control revenue bonds. The amount of variable rate pollution control revenue bonds outstanding requiring liquidity support as of March 31, 2013 was approximately $793 million. In addition, Alabama Power has substantial cash flow from operating activities and access to capital markets, including a commercial paper program, to meet liquidity needs.

In February 2013, Alabama Power amended an $800 million multi-year credit arrangement, which extended the maturity date from 2016 to 2018. In addition, in March 2013, Alabama Power amended a $200 million credit arrangement, which extended the maturity date from 2014 to 2018.

Alabama Power may meet short-term cash needs through its commercial paper program. Alabama Power may also meet short-term cash needs through a Southern Company subsidiary organized to issue and sell commercial paper at the request and for the benefit of Alabama Power and the other traditional operating companies. Proceeds from such issuances for the benefit of Alabama Power are loaned directly to Alabama Power. The obligations of each company under these arrangements are several and there is no cross affiliate credit support.

Most of these arrangements contain covenants that limit debt levels and contain cross default provisions that are restricted only to the indebtedness (including guarantee obligations) of Alabama Power. Alabama Power is currently in compliance with all such covenants. Alabama Power expects to renew its credit arrangements, as needed, prior to expiration.

47

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Details of short-term borrowings were as follows: 

	Short-term Debt at March 31, 2013		Short-term Debt During the Period(a)
	Amount Outstanding	Weighted Average Interest Rate	Average Outstanding	Weighted Average Interest Rate	Maximum Amount Outstanding
	(in millions)		(in millions)		(in millions)
Commercial paper	$45	0.2%	$18	0.2%	$85

(a) Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2013.

Management believes that the need for working capital can be adequately met by utilizing commercial paper programs, lines of credit, and cash.

Credit Rating Risk

Alabama Power does not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change to below BBB- and/or Baa3. These contracts are primarily for physical electricity purchases, fuel purchases, fuel transportation and storage, and energy price risk management. At March 31, 2013, the maximum potential collateral requirements under these contracts at a rating below BBB- and/or Baa3 were approximately $268 million. Included in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participant has a credit rating change to below investment grade. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. Additionally, any credit rating downgrade could impact Alabama Power's ability to access capital markets, particularly the short-term debt market.

Market Price Risk

Alabama Power's market risk exposure relative to interest rate changes for the first quarter 2013 has not changed materially compared to the December 31, 2012 reporting period. Since a significant portion of outstanding indebtedness is at fixed rates, Alabama Power is not aware of any facts or circumstances that would significantly affect exposures on existing indebtedness in the near term. However, the impact on future financing costs cannot now be determined.

Due to cost-based rate regulation and other various cost recovery mechanisms, Alabama Power continues to have limited exposure to market volatility in interest rates, commodity fuel prices, and prices of electricity. To mitigate residual risks relative to movements in electricity prices, Alabama Power enters into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market and, to a lesser extent, financial hedge contracts for natural gas purchases. Alabama Power continues to manage a retail fuel-hedging program implemented per the guidelines of the Alabama PSC. As a result, Alabama Power had no material change in market risk exposure for the first quarter 2013 when compared with the December 31, 2012 reporting period.

48

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The changes in fair value of energy-related derivative contracts, substantially all of which are composed of regulatory hedges, for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Contracts outstanding at the beginning of the period, assets (liabilities), net	$	(13	)
Contracts realized or settled	6
Current period changes(a)	12
Contracts outstanding at the end of the period, assets (liabilities), net	$	5

(a) Current period changes also include the changes in fair value of new contracts entered into during the period, if any.

The changes in the fair value positions of the energy-related derivative contracts, which are substantially all attributable to both the volume and the price of natural gas, for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Natural gas swaps	$	15
Natural gas options	3
Total changes	$	18

The net hedge volumes of energy-related derivative contracts were as follows:

	March 31, 2013	December 31, 2012
	mmBtu Volume
	(in millions)
Commodity – Natural gas swaps	47	45
Commodity – Natural gas options	10	12
Total hedge volume	57	57

The weighted average swap contract cost below market prices was approximately $0.04 per mmBtu as of March 31, 2013. The weighted average swap contract cost above market prices was approximately $0.30 per mmBtu as of December 31, 2012. The change in option fair value is primarily attributable to the volatility of the market and the underlying change in the natural gas price. The majority of the natural gas hedge gains and losses are recovered through Alabama Power's retail fuel cost recovery clause.

Regulatory hedges relate to Alabama Power's fuel hedging program where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as they are recovered through Alabama Power's energy recovery clause.

Unrealized pre-tax gains and losses recognized in income for the three months ended March 31, 2013 and 2012 for energy-related derivative contracts that are not hedges were not material.

49

ALABAMA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Alabama Power uses over-the-counter contracts that are not exchange traded but are fair valued using prices which are market observable, and thus fall into Level 2. See Note (C) to the Condensed Financial Statements herein for further discussion on fair value measurements. The maturities of the energy-related derivative contracts, which are all Level 2 of the fair value hierarchy, at March 31, 2013 were as follows:

	March 31, 2013 Fair Value Measurements
	Total Fair Value		Maturity
			Year 1		Years 2&3		Years 4&5
	(in millions)
Level 1	$	—	$	—	$	—	$	—
Level 2	5		2		3		—
Level 3	—		—		—		—
Fair value of contracts outstanding at end of period	$	5	$	2	$	3	$	—

For additional information, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" of Alabama Power in Item 7 and Note 1 under "Financial Instruments" and Note 11 to the financial statements of Alabama Power in Item 8 of the Form 10-K and Note (H) to the Condensed Financial Statements herein.

Financing Activities

Alabama Power did not issue or redeem any securities during the three months ended March 31, 2013.

In addition to any financings that may be necessary to meet capital requirements and contractual obligations, Alabama Power plans to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

50

GEORGIA POWER COMPANY

51

GEORGIA POWER COMPANY

CONDENSED STATEMENTS OF INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Operating Revenues:
Retail revenues	$	1,729		$	1,594
Wholesale revenues, non-affiliates	62			66
Wholesale revenues, affiliates	6			3
Other revenues	85			82
Total operating revenues	1,882			1,745
Operating Expenses:
Fuel	519			440
Purchased power, non-affiliates	50			93
Purchased power, affiliates	175			159
Other operations and maintenance	431			434
Depreciation and amortization	200			188
Taxes other than income taxes	95			87
Total operating expenses	1,470			1,401
Operating Income	412			344
Other Income and (Expense):
Allowance for equity funds used during construction	6			13
Interest expense, net of amounts capitalized	(91		)	(91		)
Other income (expense), net	(2		)	(3		)
Total other income and (expense)	(87		)	(81		)
Earnings Before Income Taxes	325			263
Income taxes	124			92
Net Income	201			171
Dividends on Preferred and Preference Stock	4			4
Net Income After Dividends on Preferred and Preference Stock	$	197		$	167

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013		2012
	(in millions)
Net Income	$	201	$	171
Other comprehensive income (loss):
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax of $- and $-, respectively	1		1
Total other comprehensive income (loss)	1		1
Comprehensive Income	$	202	$	172

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

52

GEORGIA POWER COMPANY

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in millions)
Operating Activities:
Net income	$	201		$	171
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	239			229
Deferred income taxes	59			38
Allowance for equity funds used during construction	(6		)	(13		)
Retail fuel cost over recovery—long-term	(58		)	—
Deferred expenses	31			23
Other, net	(27		)	10
Changes in certain current assets and liabilities —
-Receivables	40			258
-Fossil fuel stock	(4		)	(122		)
-Prepaid income taxes	11			10
-Other current assets	42			(4		)
-Accounts payable	78			(62		)
-Accrued taxes	(127		)	(206		)
-Accrued compensation	(66		)	(80		)
-Retail fuel cost over recovery—short-term	10			22
-Other current liabilities	5			38
Net cash provided from operating activities	428			312
Investing Activities:
Property additions	(419		)	(476		)
Investment in restricted cash from pollution control bonds	(18		)	—
Nuclear decommissioning trust fund purchases	(205		)	(287		)
Nuclear decommissioning trust fund sales	204			285
Cost of removal, net of salvage	(17		)	(15		)
Change in construction payables, net of joint owner portion	(25		)	(203		)
Other investing activities	1			15
Net cash used for investing activities	(479		)	(681		)
Financing Activities:
Increase in notes payable, net	300			99
Proceeds —
Capital contributions from parent company	11			9
Pollution control revenue bonds issuances	18			—
Senior notes issuances	650			750
Redemptions —
Senior notes	(650		)	—
Other long-term debt	—			(250		)
Payment of preferred and preference stock dividends	(4		)	(4		)
Payment of common stock dividends	(227		)	(227		)
Other financing activities	(13		)	(8		)
Net cash provided from financing activities	85			369
Net Change in Cash and Cash Equivalents	34			—
Cash and Cash Equivalents at Beginning of Period	45			13
Cash and Cash Equivalents at End of Period	$	79		$	13
Supplemental Cash Flow Information:
Cash paid (received) during the period for —
Interest (net of $3 and $6 capitalized for 2013 and 2012, respectively)	$	72		$	58
Income taxes, net	3			28
Noncash transactions—accrued property additions at end of period	212			178

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

53

GEORGIA POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Assets	At March 31, 2013			At December 31, 2012
	(in millions)
Current Assets:
Cash and cash equivalents	$	79		$	45
Restricted cash and cash equivalents	18			—
Receivables —
Customer accounts receivable	500			484
Unbilled revenues	187			217
Joint owner accounts receivable	52			51
Other accounts and notes receivable	53			68
Affiliated companies	25			23
Accumulated provision for uncollectible accounts	(6		)	(6		)
Fossil fuel stock, at average cost	996			992
Materials and supplies, at average cost	409			452
Vacation pay	86			85
Prepaid income taxes	151			164
Other regulatory assets, current	48			72
Other current assets	48			104
Total current assets	2,646			2,751
Property, Plant, and Equipment:
In service	29,462			29,244
Less accumulated provision for depreciation	10,574			10,431
Plant in service, net of depreciation	18,888			18,813
Other utility plant, net	266			263
Nuclear fuel, at amortized cost	506			497
Construction work in progress	3,079			2,893
Total property, plant, and equipment	22,739			22,466
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	46			45
Nuclear decommissioning trusts, at fair value	723			698
Miscellaneous property and investments	42			44
Total other property and investments	811			787
Deferred Charges and Other Assets:
Deferred charges related to income taxes	726			733
Other regulatory assets, deferred	1,794			1,798
Other deferred charges and assets	279			268
Total deferred charges and other assets	2,799			2,799
Total Assets	$	28,995		$	28,803

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

54

GEORGIA POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Liabilities and Stockholder's Equity	At March 31, 2013			At December 31, 2012
	(in millions)
Current Liabilities:
Securities due within one year	$	1,047		$	1,680
Notes payable	302			2
Accounts payable —
Affiliated	419			417
Other	503			436
Customer deposits	241			237
Accrued taxes —
Accrued income taxes	43			6
Other accrued taxes	96			260
Accrued interest	113			100
Accrued vacation pay	60			61
Accrued compensation	48			113
Liabilities from risk management activities	17			30
Other regulatory liabilities, current	56			73
Over recovered regulatory clause revenues, current	117			107
Other current liabilities	119			146
Total current liabilities	3,181			3,668
Long-term Debt	8,641			7,994
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	4,914			4,861
Deferred credits related to income taxes	113			115
Accumulated deferred investment tax credits	206			208
Employee benefit obligations	945			950
Asset retirement obligations	1,148			1,097
Other cost of removal obligations	63			63
Other deferred credits and liabilities	260			308
Total deferred credits and other liabilities	7,649			7,602
Total Liabilities	19,471			19,264
Preferred Stock	45			45
Preference Stock	221			221
Common Stockholder's Equity:
Common stock, without par value —
Authorized — 20,000,000 shares
Outstanding — 9,261,500 shares	398			398
Paid-in capital	5,599			5,585
Retained earnings	3,267			3,297
Accumulated other comprehensive loss	(6		)	(7		)
Total common stockholder's equity	9,258			9,273
Total Liabilities and Stockholder's Equity	$	28,995		$	28,803

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

55

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FIRST QUARTER 2013 vs. FIRST QUARTER 2012

OVERVIEW

Georgia Power operates as a vertically integrated utility providing electricity to retail customers within its traditional service area located within the State of Georgia and to wholesale customers in the Southeast. Many factors affect the opportunities, challenges, and risks of Georgia Power's business of selling electricity. These factors include the ability to maintain a constructive regulatory environment, to maintain and grow energy sales given economic conditions, and to effectively manage and secure timely recovery of costs. These costs include those related to projected long-term demand growth, increasingly stringent environmental standards, reliability, and fuel. In addition, Georgia Power is currently constructing Plant Vogtle Units 3 and 4 to increase its generation diversity. Appropriately balancing required costs and capital expenditures with customer prices will continue to challenge Georgia Power for the foreseeable future. Georgia Power is scheduled to file its next base rate case by July 1, 2013, which will determine whether the 2010 ARP should be continued, modified, or discontinued.

Georgia Power continues to focus on several key performance indicators. These indicators include customer satisfaction, plant availability, system reliability, and net income after dividends on preferred and preference stock. For additional information on these indicators, see MANAGEMENT'S DISCUSSION AND ANALYSIS – OVERVIEW – "Key Performance Indicators" of Georgia Power in Item 7 of the Form 10-K. See FUTURE EARNINGS POTENTIAL – "Other Matters" herein for information regarding an explosion at Plant Bowen in April 2013 that is expected to negatively impact Georgia Power's actual performance on its peak season equivalent forced outage rate, one of its key performance indicators, for 2013, as compared to the target.

RESULTS OF OPERATIONS

Net Income

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$30	18.0

Georgia Power's net income after dividends on preferred and preference stock for the first quarter 2013 was $197 million compared to $167 million for the corresponding period in 2012. The increase was primarily due to an increase in retail base revenues as authorized under the 2010 ARP and the NCCR tariff and more favorable weather in the first quarter 2013 as compared to the corresponding period in 2012, partially offset by higher income taxes and an increase in depreciation related to new generating units at Plant McDonough-Atkinson.

Retail Revenues

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$135	8.5

In the first quarter 2013, retail revenues were $1.73 billion compared to $1.59 billion for the corresponding period in 2012.

56

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Details of the change to retail revenues were as follows:

	First Quarter 2013
	(in millions)		(% change)
Retail – prior year	$	1,594
Estimated change in –
Rates and pricing	45		2.8
Sales growth (decline)	2		0.1
Weather	20		1.3
Fuel cost recovery	68		4.3
Retail – current year	$	1,729	8.5	%

Revenues associated with changes in rates and pricing increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to base tariff increases effective April 2012 and January 1, 2013, as approved by the Georgia PSC, related to placing new generating units at Plant McDonough-Atkinson in service, the financing costs related to the construction of Plant Vogtle Units 3 and 4, and demand-side management costs, partially offset by the pricing effect of increased customer demand.

Revenues attributable to changes in sales increased slightly in the first quarter 2013 when compared to the corresponding period in 2012. Weather-adjusted residential KWH sales increased 0.7%, weather-adjusted commercial KWH sales increased 1.0%, and weather-adjusted industrial KWH sales decreased 3.0% in the first quarter 2013 when compared to the corresponding period in 2012. Decreased demand in the chemicals, paper, and primary metals sectors was the main contributor to the decreases in weather-adjusted industrial KWH sales. In addition, an extra day of sales as a result of the leap year in 2012 negatively impacted KWH sales in all customer classes in 2013.

In the first quarter 2012, Georgia Power began using new actual advanced meter data to compute unbilled revenues. The weather-adjusted KWH sales variances shown above reflect an adjustment to the estimated allocation of Georgia Power's unbilled January 2012 KWH sales among customer classes that is consistent with the actual allocation in 2013. Without this adjustment, first quarter 2013 residential and industrial weather-adjusted KWH sales decreased 1.3% and 3.1%, respectively, as compared to the corresponding period in 2012 and commercial weather-adjusted KWH sales increased 2.8% as compared to the corresponding period in 2012.

Revenues resulting from changes in weather increased in the first quarter 2013 when compared to the corresponding period in 2012 due to more favorable weather in the first quarter 2013 as compared to the corresponding period in 2012.

Fuel revenues and costs are allocated between retail and wholesale jurisdictions. Retail fuel cost recovery revenues increased $68 million in the first quarter 2013 when compared to the corresponding period in 2012 due to increased KWH energy sales and higher fuel costs.

Electric rates include provisions to adjust billings for fluctuations in fuel costs, including the energy component of purchased power costs. Under these fuel cost recovery provisions, fuel revenues generally equal fuel expenses and do not affect net income. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Fuel Cost Recovery" herein for additional information.

57

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Fuel and Purchased Power Expenses

	First Quarter 2013 vs. First Quarter 2012
	(change in millions)			(% change)
Fuel	$	79		18.0
Purchased power — non-affiliates	(43		)	(46.2	)
Purchased power — affiliates	16			10.1
Total fuel and purchased power expenses	$	52

In the first quarter 2013, total fuel and purchased power expenses were $744 million compared to $692 million in the corresponding period in 2012. The increase was primarily due to a $62 million increase in the average cost of fuel and purchased power due to higher fuel prices and a $65 million increase in the volume of KWHs generated as a result of higher customer demand, partially offset by a $75 million decrease in the volume of KWHs purchased as the market cost of available energy was higher than Georgia Power-owned generation.

Fuel and purchased power energy transactions do not have a significant impact on earnings since these fuel expenses are generally offset by fuel revenues through Georgia Power's fuel cost recovery mechanism. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Fuel Cost Recovery" herein for additional information.

Details of Georgia Power's generation and purchased power were as follows:

	First Quarter 2013	First Quarter 2012
Total generation (billions of KWHs)	15	13
Total purchased power (billions of KWHs)	6	8
Sources of generation (percent) —
Coal	29	42
Nuclear	22	30
Gas	46	26
Hydro	3	2
Cost of fuel, generated (cents per net KWH) —
Coal	5.28	4.67
Nuclear	0.90	0.86
Gas	3.14	3.16
Average cost of fuel, generated (cents per net KWH)	3.28	3.10
Average cost of purchased power (cents per net KWH)(a)	4.44	3.86

(a) Average cost of purchased power includes fuel purchased by Georgia Power for tolling agreements where power is generated by the provider.

Fuel

In the first quarter 2013, fuel expense was $519 million compared to $440 million in the corresponding period in 2012. The increase was primarily due to a 16.8% increase in the volume of KWHs generated as a result of higher KWH demand and a 5.8% increase in the average cost of fuel per KWH generated primarily due to higher coal and nuclear fuel prices.

58

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Purchased Power – Non-Affiliates

In the first quarter 2013, purchased power expense from non-affiliates was $50 million compared to $93 million in the corresponding period in 2012. The decrease was due to a 68.3% decrease in the volume of KWHs purchased as the cost of Georgia Power-owned generation was lower than the market cost of available energy, partially offset by an increase of 70.8% in the average cost per KWH purchased primarily due to fixed capacity payment provisions in the PPAs.

Energy purchases from non-affiliates will vary depending on the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation.

Purchased Power – Affiliates

In the first quarter 2013, purchased power expense from affiliates was $175 million compared to $159 million in the corresponding period in 2012. The increase was due to a 16.4% increase in the average cost per KWH purchased, reflecting higher fuel prices, partially offset by a 12.3% decrease in the volume of KWHs purchased as Georgia Power units generally dispatched at a lower cost than other Southern Company system resources.

Energy purchases from affiliates will vary depending on the demand and the availability and cost of generating resources at each company within the Southern Company system. These purchases are made in accordance with the IIC or other contractual agreements, all as approved by the FERC.

Other Operations and Maintenance Expenses

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(3)	(0.7)

In the first quarter 2013, other operations and maintenance expenses were $431 million compared to $434 million in the corresponding period in 2012. The decrease was primarily due to a $10 million decrease in fossil generating maintenance due to timing of plant outages and a $2 million decrease in uncollectible account expense, partially offset by a $10 million increase in pension and other employee benefit-related expenses.

Depreciation and Amortization

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$12	6.4

In the first quarter 2013, depreciation and amortization was $200 million compared to $188 million in the corresponding period in 2012. The increase was primarily due to an increase of $23 million in depreciation as a result of additional plant in service primarily due to the completion of Plant McDonough-Atkinson Units 5 and 6 in April 2012 and October 2012, respectively, partially offset by $9 million in amortization of the regulatory liability previously established for state income tax credits, as authorized by the Georgia PSC. See Note 1 to the financial statements of Georgia Power under "Regulatory Assets and Liabilities" in Item 8 of the Form 10-K for additional information.

59

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Taxes Other Than Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$8	9.2

In the first quarter 2013, taxes other than income taxes were $95 million compared to $87 million in the corresponding period in 2012. The increase was due to a $4 million increase in property taxes and a $4 million increase in municipal franchise fees related to higher retail revenues in 2013.

Allowance for Equity Funds Used During Construction

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(7)	(53.8)

In the first quarter 2013, AFUDC equity was $6 million compared to $13 million in the corresponding period in 2012. The decrease was primarily due to the completion of Plant McDonough-Atkinson Units 5 and 6 in April 2012 and October 2012, respectively.

Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$32	34.8

In the first quarter 2013, income taxes were $124 million compared to $92 million in the corresponding period in 2012. The increase was primarily due to higher pre-tax earnings, the recognition in 2012 of previously unrecognized tax positions as a result of a settlement with the IRS related to the production activities deduction, and a decrease in non-taxable AFUDC equity.

FUTURE EARNINGS POTENTIAL

The results of operations discussed above are not necessarily indicative of Georgia Power's future earnings potential. The level of Georgia Power's future earnings depends on numerous factors that affect the opportunities, challenges, and risks of Georgia Power's business of selling electricity. These factors include Georgia Power's ability to maintain a constructive regulatory environment that continues to allow for the timely recovery of prudently-incurred costs during a time of increasing costs and the successful completion of ongoing construction projects. Future earnings in the near term will depend, in part, upon maintaining energy sales which is subject to a number of factors. These factors include weather, competition, new energy contracts with neighboring utilities, energy conservation practiced by customers, the price of electricity, the price elasticity of demand, and the rate of economic growth or decline in Georgia Power's service territory. Changes in regional and global economic conditions may impact sales for Georgia Power as the pace of the economic recovery remains uncertain. The timing and extent of the economic recovery will impact growth and may impact future earnings. For additional information relating to these issues, see RISK FACTORS in Item 1A and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL of Georgia Power in Item 7 of the Form 10-K.

Environmental Matters

Compliance costs related to federal and state environmental statutes and regulations could affect earnings if such costs cannot continue to be fully recovered in rates on a timely basis. Environmental compliance spending over the next several years may differ materially from the amounts estimated. The timing, specific requirements, and estimated costs could change as environmental statutes and regulations are adopted or modified. Further, higher costs that are recovered through regulated rates could contribute to reduced demand for electricity, which could

60

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

negatively affect results of operations, cash flows, and financial condition. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters" of Georgia Power in Item 7 and Note 3 to the financial statements of Georgia Power under "Environmental Matters" in Item 8 of the Form 10-K for additional information.

Environmental Statutes and Regulations

Air Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality" of Georgia Power in Item 7 of the Form 10-K for information regarding the EPA's MATS rule and the 2007 State of Georgia Multi-Pollutant Rule.

On April 24, 2013, the EPA published a final reconsideration rule addressing new source standards within the MATS rule. Although the EPA had considered revisions to the startup and shutdown provisions of the MATS rule, a final decision on these provisions was deferred. The ultimate impact of this rulemaking will depend on the outcome of any additional rulemaking and/or legal challenges and, therefore, cannot be determined at this time.

On April 30, 2013, the State of Georgia finalized revisions to the 2007 State of Georgia Multi-Pollutant Rule and a companion rule requiring a 95% reduction in sulfur dioxide emissions from certain coal-fired generating units. The revisions modify the compliance dates under those two rules for units yet to be controlled to synchronize them with the MATS rule compliance deadline. The revisions also allow natural gas to be used as a compliance alternative at Plant Yates as contemplated by the 2013 IRP. The ultimate outcome of these matters cannot be determined at this time. See Note 3 to the financial statements of Georgia Power under "Retail Regulatory Matters – Integrated Resource Plans" in Item 8 of the Form 10-K for additional information.

Water Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Water Quality" of Georgia Power in Item 7 of the Form 10-K for additional information regarding the EPA's proposed revision of the current steam electric effluent guidelines. On April 19, 2013, the EPA signed a proposed rule which requests comments on a range of potential regulatory options for addressing certain wastestreams from steam electric power plants. These regulations could result in the installation of additional controls at certain of Georgia Power's facilities, which could result in significant capital expenditures and compliance costs that could affect future unit retirement and replacement decisions. The ultimate impact of these proposed regulations will, however, depend on the specific requirements of the final rule and the outcome of any legal challenges and cannot be determined at this time.

PSC Matters

Fuel Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Fuel Cost Recovery" of Georgia Power in Item 7 and Note 3 to the financial statements of Georgia Power under "Retail Regulatory Matters – Fuel Cost Recovery" in Item 8 of the Form 10-K for additional information.

As of March 31, 2013, Georgia Power's fuel cost over recovery balance totaled $182 million and is included in current liabilities and other deferred credits and liabilities on Georgia Power's Condensed Balance Sheet herein.

Fuel cost recovery revenues as recorded on the financial statements are adjusted for differences in actual recoverable fuel costs and amounts billed in current regulated rates. Accordingly, any changes in the billing factor will not have a significant effect on Georgia Power's revenues or net income, but will affect cash flow. See Note (B) to the Condensed Financial Statements under "Retail Regulatory Matters – Georgia Power – Fuel Cost Recovery" herein for additional information.

61

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Integrated Resource Plans

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality," " – Water Quality," and " – Coal Combustion Byproducts" of Georgia Power in Item 7 and Note 3 to the financial statements of Georgia Power under "Retail Regulatory Matters – Rate Plans" and " – Integrated Resource Plans" in Item 8 of the Form 10-K for additional information regarding proposed and final EPA rules and regulations, including the MATS rule for coal- and oil-fired electric utility steam generating units, revisions to effluent guidelines for steam electric power plants, and additional regulation of coal combustion byproducts; the State of Georgia's Multi-Pollutant Rule; Georgia Power's analysis of the potential costs and benefits of installing the required controls on its fossil generating units in light of these regulations; the 2010 ARP; the 2011 IRP; and the 2013 IRP.

On April 17, 2013, the Georgia PSC approved the decertification of Plant Bowen Unit 6 (32 MWs), which was retired on April 25, 2013. The Georgia PSC is scheduled to vote on all other aspects of the 2013 IRP in July 2013. The ultimate outcome of this matter cannot be determined at this time.

Separately, on April 22, 2013, Georgia Power executed two PPAs to purchase energy from two wind farms with capacity totaling 250 MWs in southwest Oklahoma that will commence in 2016 and end in 2035. In addition, on April 29, 2013, Georgia Power executed a PPA for the purchase of 50 MWs of capacity and energy that will commence in 2015 and end in 2035. These PPAs are subject to Georgia PSC approval and, if approved, will result in contractual obligations of approximately $13 million in 2015, $47 million in 2016, $48 million in 2017, and $1.3 billion thereafter.

Nuclear Construction

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters –Nuclear Construction" of Georgia Power in Item 7 and Note 3 to the financial statements of Georgia Power under "Retail Regulatory Matters – Nuclear Construction" in Item 8 of the Form 10-K and Note (B) to the Condensed Financial Statements under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" herein for additional information regarding the construction of Plant Vogtle Units 3 and 4, the eighth Vogtle Construction Monitoring (VCM) report, and pending litigation.

In 2009, the Georgia PSC approved inclusion of the Plant Vogtle Units 3 and 4 related CWIP accounts in rate base, and the State of Georgia enacted the Georgia Nuclear Energy Financing Act, which allows Georgia Power to recover financing costs for nuclear construction projects through annual adjustments to an NCCR tariff by including the related CWIP accounts in rate base during the construction period.

The Georgia PSC approved increases to the NCCR tariff of approximately $223 million, $35 million, and $50 million, effective January 1, 2011, 2012, and 2013, respectively. Through the NCCR tariff, Georgia Power is collecting and amortizing to earnings approximately $91 million of financing costs, capitalized in 2009 and 2010, over the five-year period ending December 31, 2015, in addition to the ongoing financing costs. At March 31, 2013, approximately $50 million of these 2009 and 2010 costs remained unamortized in CWIP.

Georgia Power is required to file semi-annual VCM reports with the Georgia PSC by February 28 and August 31 each year. On February 19, 2013, the Georgia PSC voted to approve Georgia Power's seventh VCM report, including construction capital costs incurred through June 30, 2012 of approximately $2.0 billion. Georgia Power's eighth VCM report requests approval for an additional $0.2 billion of construction capital costs incurred through December 31, 2012. If the projected certified construction capital costs to be borne by Georgia Power increase by 5% or the projected in-service dates are significantly extended, Georgia Power is required to seek an amendment to the Plant Vogtle Units 3 and 4 certificate from the Georgia PSC. Accordingly, the eighth VCM also requests an amendment to the certificate to increase the estimated in-service capital cost of Plant Vogtle Units 3 and 4 to $4.8 billion and to extend the estimated in-service dates to the fourth quarter 2017 and the fourth quarter 2018 for Plant Vogtle Units 3 and 4, respectively. Associated financing costs during the construction period are estimated to total approximately $2.0 billion. The Georgia PSC is expected to vote on the eighth VCM by October 2013.

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GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

In addition, processes are in place that are designed to assure compliance with the requirements specified in the Westinghouse Design Control Document, as amended (DCD), and the combined construction and operating licenses (COLs), including rigorous inspections by Southern Nuclear and the NRC that occur throughout construction. During the fourth quarter 2012, certain details of the rebar design for the Plant Vogtle Unit 3 nuclear island were evaluated for consistency with the DCD and deviations were identified. On February 26, 2013 and March 1, 2013, the NRC approved the two license amendment requests required to conform the rebar design details to NRC requirements and, on March 14, 2013, the placement of basemat structural concrete for the nuclear island of Plant Vogtle Unit 3 was completed. Additional license amendment requests are pending before the NRC. Various design and other issues are expected to arise as construction proceeds, which may result in additional license amendments or require other resolution. If any license amendment requests are not resolved in a timely manner, there may be delays in the project schedule that could result in increased costs either to the Owners, the Contractor, or both.

As construction continues, additional delays in the fabrication and assembly of structural modules, the failure of such modules to meet applicable standards, or other issues may further impact project schedule and cost. Additional claims by the Contractor or Georgia Power (on behalf of the Owners) are also likely to arise throughout construction. These claims may be resolved through formal and informal dispute resolution procedures under the engineering, procurement, and construction agreement for Plant Vogtle Units 3 and 4, but also may be resolved through litigation.

See RISK FACTORS of Georgia Power in Item 1A of the Form 10-K for a discussion of certain risks associated with the licensing, construction, and operation of nuclear generating units, including potential impacts that could result from a major incident at a nuclear facility anywhere in the world.

The ultimate outcome of these matters cannot be determined at this time.

Other Matters

Georgia Power is involved in various other matters being litigated and regulatory matters that could affect future earnings. In addition, Georgia Power is subject to certain claims and legal actions arising in the ordinary course of business. Georgia Power's business activities are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent.

The ultimate outcome of such pending or potential litigation against Georgia Power cannot be predicted at this time; however, for current proceedings not specifically reported in Note (B) to the Condensed Financial Statements herein or in Note 3 to the financial statements of Georgia Power in Item 8 of the Form 10-K, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on Georgia Power's financial statements.

See the Notes to the Condensed Financial Statements herein for a discussion of various other contingencies, regulatory matters, and other matters being litigated which may affect future earnings potential.

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Other Matters" of Georgia Power in Item 7 of the Form 10-K for additional information regarding the NRC's performance of additional operational and safety reviews of nuclear facilities in the U.S. following the major earthquake and tsunami that struck Japan in 2011. On March 19, 2013, the NRC issued an order relating to hardened vents for certain classes of containment structures, including the one in use at Plant Hatch. Georgia Power is continuing to analyze the impact of this order. The ultimate outcome of this matter cannot be determined at this time; however, management does not currently anticipate that the compliance costs associated with this order would have a material impact on Georgia Power's financial statements.

63

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

On April 4, 2013, an explosion occurred at Plant Bowen Unit 2 that resulted in substantial damage to the Plant Bowen Unit 2 generator, Plant Bowen's Units 1 and 2 control room and surrounding areas, as well as Plant Bowen's switchyard. The extent of the damage sustained by Plant Bowen Unit 1 is unknown. Plant Bowen Units 1 and 2 (approximately 1,400 MWs) remain offline, pending assessment of the damage and completion of repairs. Georgia Power expects that any material repair costs related to the damage will be covered by property insurance. The ultimate outcome of this matter cannot be determined at this time.

ACCOUNTING POLICIES

Application of Critical Accounting Policies and Estimates

Georgia Power prepares its financial statements in accordance with GAAP. Significant accounting policies are described in Note 1 to the financial statements of Georgia Power in Item 8 of the Form 10-K. In the application of these policies, certain estimates are made that may have a material impact on Georgia Power's results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements. See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES – "Application of Critical Accounting Policies and Estimates" of Georgia Power in Item 7 of the Form 10-K for a complete discussion of Georgia Power's critical accounting policies and estimates related to Electric Utility Regulation, Contingent Obligations, and Pension and Other Postretirement Benefits.

FINANCIAL CONDITION AND LIQUIDITY

Overview

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Overview" of Georgia Power in Item 7 of the Form 10-K for additional information. Georgia Power's financial condition remained stable at March 31, 2013. Georgia Power intends to continue to monitor its access to short-term and long-term capital markets as well as its bank credit arrangements to meet future capital and liquidity needs. See "Capital Requirements and Contractual Obligations," "Sources of Capital," and "Financing Activities" herein for additional information.

Net cash provided from operating activities totaled $428 million for the first three months of 2013 compared to $312 million for the corresponding period in 2012. The increase was primarily due to lower fuel inventory additions in 2013. Net cash used for investing activities totaled $479 million compared to $681 million used in the corresponding period in 2012. The decrease was primarily due to higher cash payments for construction expenditures in 2012. Net cash provided from financing activities totaled $85 million for the first three months of 2013 compared to $369 million in the corresponding period in 2012. The decrease is primarily due to additional net issuances of debt in 2012. Fluctuations in cash flow from financing activities vary from year to year based on capital needs and the maturity or redemption of securities.

Significant balance sheet changes for the first three months of 2013 include increases of $273 million in total property, plant, and equipment and $314 million in debt, as well as a $164 million decrease in other accrued taxes.

Capital Requirements and Contractual Obligations

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Capital Requirements and Contractual Obligations" of Georgia Power in Item 7 of the Form 10-K for a description of Georgia Power's capital requirements for its construction program, including estimated capital expenditures for new generating facilities and to comply with existing environmental statutes and regulations, scheduled maturities of long-term debt, as well as related interest, derivative obligations, preferred and preference stock dividends, leases, purchase commitments, trust funding requirements, and unrecognized tax benefits. See FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations" herein for additional information. Approximately $1.0 billion will be required through March 31, 2014 to fund maturities of long-term debt.

64

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The construction program is subject to periodic review and revision, and actual construction costs may vary from these estimates because of numerous factors. These factors include: changes in business conditions; changes in load projections; changes in environmental statutes and regulations; the outcome of any legal challenges to the environmental rules; changes in generating plants, including unit retirements and replacements and adding or changing fuel sources at existing units, to meet regulatory requirements; changes in FERC rules and regulations; Georgia PSC approvals; changes in the expected environmental compliance program; changes in legislation; the cost and efficiency of construction labor, equipment, and materials; project scope and design changes; storm impacts; and the cost of capital. In addition, there can be no assurance that costs related to capital expenditures will be fully recovered.

Sources of Capital

Except as described below with respect to potential DOE loan guarantees, Georgia Power plans to obtain the funds required for construction and other purposes from sources similar to those used in the past, which were primarily from operating cash flows, short-term debt, security issuances, term loans, and equity contributions from Southern Company. However, the amount, type, and timing of any future financings, if needed, will depend upon regulatory approval, prevailing market conditions, and other factors. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" of Georgia Power in Item 7 of the Form 10-K for additional information.

In 2010, Georgia Power reached an agreement with the DOE to accept terms for a conditional commitment for federal loan guarantees that would apply to future borrowings by Georgia Power related to the construction of Plant Vogtle Units 3 and 4. Any borrowings guaranteed by the DOE would be full recourse to Georgia Power and secured by a first priority lien on Georgia Power's 45.7% undivided ownership interest in Plant Vogtle Units 3 and 4. Total guaranteed borrowings would not exceed the lesser of 70% of eligible project costs or approximately $3.46 billion and are expected to be funded by the Federal Financing Bank. Final approval and issuance of loan guarantees by the DOE are subject to negotiation of definitive agreements, completion of due diligence by the DOE, receipt of any necessary regulatory approvals, and satisfaction of other conditions. In the event that the DOE does not issue a loan guarantee or Georgia Power determines that the final terms and conditions of the loan guarantee by the DOE are not in the best interest of its customers, Georgia Power expects to finance the construction of Plant Vogtle Units 3 and 4 through traditional capital markets financings. There can be no assurance that the DOE will issue loan guarantees for Georgia Power. The conditional commitment will expire on June 30, 2013, unless further extended by the DOE. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Nuclear Construction" herein for more information on Plant Vogtle Units 3 and 4.

Georgia Power's current liabilities frequently exceed current assets because of the continued use of short-term debt as a funding source to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate significantly due to the seasonality of the business. Georgia Power has substantial cash flow from operating activities and access to the capital markets to meet liquidity needs.

At March 31, 2013, Georgia Power had approximately $79 million of cash and cash equivalents. Committed credit arrangements with banks at March 31, 2013 were as follows:

Expires(a)												Executable Term Loans				Due Within One Year
2013		2014		2016		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
(in millions)								(in millions)				(in millions)				(in millions)
$	—	$	—	$	150	$	1,600	$	1,750	$	1,740	$	—	$	—	$	—	$	—

(a) No credit arrangements expire in 2015 or 2017.

65

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

See Note 6 to the financial statements of Georgia Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

These credit arrangements provide liquidity support to Georgia Power's commercial paper borrowings and variable rate pollution control revenue bonds. The amount of variable rate pollution control revenue bonds outstanding requiring liquidity support as of March 31, 2013 was approximately $874 million.

In February 2013, Georgia Power amended its multi-year credit arrangement, which extended the maturity date from 2016 to 2018. In addition, in March 2013, Georgia Power amended certain of its credit arrangements, which extended the maturity dates from 2014 to 2016.

Georgia Power may also meet short-term cash needs through a Southern Company subsidiary organized to issue and sell commercial paper at the request and for the benefit of Georgia Power and the other traditional operating companies. Proceeds from such issuances for the benefit of Georgia Power are loaned directly to Georgia Power. The obligations of each company under these arrangements are several and there is no cross affiliate credit support.

These arrangements contain covenants that limit debt levels and contain cross default provisions that are restricted only to the indebtedness of Georgia Power. Georgia Power is currently in compliance with all such covenants. Georgia Power expects to renew its credit arrangements, as needed, prior to expiration.

Details of short-term borrowings were as follows:

	Short-term Debt at March 31, 2013(a)				Short-term Debt During the Period(a)(b)
	Amount Outstanding		Weighted Average Interest Rate		Average Outstanding		Weighted Average Interest Rate		Maximum Amount Outstanding
	(in millions)				(in millions)				(in millions)
Commercial paper	$	—	—	%	$	110	0.3	%	$	296
Short-term bank debt	300		0.9	%	87		0.9	%	300
Total	$	300	0.9	%	$	197	0.5	%

(a) Excludes notes payable related to other energy service contracts of $2 million.

(b) Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2013.

Management believes that the need for working capital can be adequately met by utilizing commercial paper programs, lines of credit, and cash.

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GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Credit Rating Risk

Georgia Power does not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change to BBB- and/or Baa3 or below. These contracts are for physical electricity purchases and sales, fuel purchases, fuel transportation and storage, energy price risk management, and construction of new generation. The maximum potential collateral requirements under these contracts at March 31, 2013 were as follows:

Credit Ratings	Maximum Potential Collateral Requirements
	(in millions)
At BBB- and/or Baa3	$	65
Below BBB- and/or Baa3	1,298

Included in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participant has a credit rating change to below investment grade. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. Additionally, any credit rating downgrade could impact Georgia Power's ability to access capital markets, particularly the short-term debt market.

Market Price Risk

Georgia Power's market risk exposure relative to interest rate changes for the first quarter 2013 has not changed materially compared with the December 31, 2012 reporting period. Since a significant portion of outstanding indebtedness is at fixed rates, Georgia Power is not aware of any facts or circumstances that would significantly affect exposures on existing indebtedness in the near term. However, the impact on future financing costs cannot now be determined.

Due to cost-based rate regulation and other various cost recovery mechanisms, Georgia Power continues to have limited exposure to market volatility in interest rates, commodity fuel prices, and prices of electricity. To mitigate residual risks relative to movements in electricity prices, Georgia Power enters into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market and, to a lesser extent, financial hedge contracts for natural gas purchases. Georgia Power continues to manage a fuel-hedging program implemented per the guidelines of the Georgia PSC. As a result, Georgia Power had no material change in market risk exposure for the first quarter 2013 relative to fuel and electricity prices when compared with the December 31, 2012 reporting period.

The changes in fair value of energy-related derivative contracts, substantially all of which are composed of regulatory hedges, for the three months ended March 31, 2013 were as follows: 

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Contracts outstanding at the beginning of the period, assets (liabilities), net	$	(33	)
Contracts realized or settled	10
Current period changes(a)	8
Contracts outstanding at the end of the period, assets (liabilities), net	$	(15	)

(a) Current period changes also include the changes in fair value of new contracts entered into during the period, if any.

67

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The changes in the fair value positions of the energy-related derivative contracts, which are substantially all attributable to both the volume and the price of natural gas, for the three months ended March 31, 2013 were as follows: 

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Natural gas swaps	$	6
Natural gas options	12
Total changes	$	18

The net hedge volumes of energy-related derivative contracts were as follows: 

	March 31, 2013	December 31, 2012
	mmBtu Volume
	(in millions)
Commodity – Natural gas swaps	11	12
Commodity – Natural gas options	79	93
Total hedge volume	90	105

The weighted average swap contract cost above market prices was approximately $0.64 per mmBtu as of March 31, 2013 and $1.09 per mmBtu as of December 31, 2012. The change in option fair value is primarily attributable to the volatility of the market and the underlying change in the natural gas price. All natural gas hedge gains and losses are recovered through Georgia Power's fuel cost recovery mechanism.

Regulatory hedges relate to Georgia Power's fuel-hedging program where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as they are recovered through Georgia Power's fuel cost recovery mechanism.

Unrealized pre-tax gains and losses recognized in income for the three months ended March 31, 2013 and 2012 for energy-related derivative contracts that are not hedges were not material.

Georgia Power uses over-the-counter contracts that are not exchange traded but are fair valued using prices which are market observable, and thus fall into Level 2. See Note (C) to the Condensed Financial Statements herein for further discussion on fair value measurements. The maturities of the energy-related derivative contracts, which are all Level 2 of the fair value hierarchy, at March 31, 2013 were as follows: 

	March 31, 2013 Fair Value Measurements
	Total			Maturity
	Fair Value			Year 1			Years 2&3
				(in millions)
Level 1	$	—		$	—		$	—
Level 2	(15		)	(11		)	(4		)
Level 3	—			—			—
Fair value of contracts outstanding at end of period	$	(15	)	$	(11	)	$	(4	)

68

GEORGIA POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

For additional information, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" of Georgia Power in Item 7 and Note 1 under "Financial Instruments" and Note 11 to the financial statements of Georgia Power in Item 8 of the Form 10-K and Note (H) to the Condensed Financial Statements herein.

Financing Activities

In January 2013, Georgia Power's $300 million aggregate principal amount of Series 2011A Floating Rate Senior Notes due January 15, 2013 matured.

In March 2013, Georgia Power entered into three 60-day floating rate bank loans bearing interest based on one-month LIBOR. Each of these short-term loans was for $100 million aggregate principal amount, and the proceeds were used for working capital and other general corporate purposes, including Georgia Power's continuous construction program.

In March 2013, Georgia Power issued $400 million aggregate principal amount of Series 2013A 4.30% Senior Notes due March 15, 2043. Also in March 2013, Georgia Power issued $250 million aggregate principal amount of Series 2013B Floating Rate Senior Notes due March 15, 2016. The proceeds from the sale of the Series 2013A Senior Notes, together with the proceeds from the sale of the Series 2013B Senior Notes, were used to repay at maturity $350 million aggregate principal amount of Georgia Power's Series 2010A Floating Rate Senior Notes due March 15, 2013, to repay a portion of its outstanding short-term indebtedness, and for general corporate purposes, including Georgia Power's continuous construction program.

In March 2013, the Development Authority of Monroe County issued $17.5 million aggregate principal amount of Pollution Control Revenue Bonds (Georgia Power Company Plant Scherer Project), First Series 2013 due April 1, 2043 for the benefit of Georgia Power. The proceeds were used to redeem, in April 2013, $17.5 million aggregate principal amount of Development Authority of Monroe County Pollution Control Revenue Bonds (Georgia Power Company Plant Scherer Project), Second Series 1997.

In addition to any financings that may be necessary to meet capital requirements and contractual obligations, Georgia Power plans to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

69

GULF POWER COMPANY

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GULF POWER COMPANY

CONDENSED STATEMENTS OF INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Operating Revenues:
Retail revenues	$	259,877		$	238,520
Wholesale revenues, non-affiliates	21,208			27,118
Wholesale revenues, affiliates	29,455			36,364
Other revenues	15,734			14,243
Total operating revenues	326,274			316,245
Operating Expenses:
Fuel	120,846			121,088
Purchased power, non-affiliates	11,135			11,225
Purchased power, affiliates	3,312			2,513
Other operations and maintenance	78,662			75,230
Depreciation and amortization	37,053			33,307
Taxes other than income taxes	23,626			23,784
Total operating expenses	274,634			267,147
Operating Income	51,640			49,098
Other Income and (Expense):
Allowance for equity funds used during construction	1,134			1,237
Interest expense, net of amounts capitalized	(14,369		)	(15,368		)
Other income (expense), net	(976		)	(1,009		)
Total other income and (expense)	(14,211		)	(15,140		)
Earnings Before Income Taxes	37,429			33,958
Income taxes	14,086			11,741
Net Income	23,343			22,217
Dividends on Preference Stock	1,551			1,551
Net Income After Dividends on Preference Stock	$	21,792		$	20,666

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013		2012
	(in thousands)
Net Income	$	23,343	$	22,217
Other comprehensive income (loss):
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax of $90 and $90, respectively	143		143
Total other comprehensive income (loss)	143		143
Comprehensive Income	$	23,486	$	22,360

The accompanying notes as they relate to Gulf Power are an integral part of these condensed financial statements.

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GULF POWER COMPANY

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Operating Activities:
Net income	$	23,343		$	22,217
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	38,794			34,844
Deferred income taxes	16,777			32,505
Allowance for equity funds used during construction	(1,134		)	(1,237		)
Pension, postretirement, and other employee benefits	2,889			1,315
Stock based compensation expense	669			685
Other, net	2,485			5,478
Changes in certain current assets and liabilities —
-Receivables	(2,305		)	14,754
-Prepayments	934			1,559
-Fossil fuel stock	1,423			1,543
-Materials and supplies	(513		)	(1,476		)
-Prepaid income taxes	(7,667		)	17,324
-Accounts payable	(17,812		)	(21,516		)
-Accrued taxes	5,380			(1,453		)
-Accrued compensation	(9,451		)	(9,190		)
-Over recovered regulatory clause revenues	(10,186		)	14,516
-Other current liabilities	6,073			5,637
Net cash provided from operating activities	49,699			117,505
Investing Activities:
Property additions	(66,696		)	(94,879		)
Cost of removal, net of salvage	(3,469		)	(9,342		)
Change in construction payables	1,787			7,773
Payments pursuant to long-term service agreements	(1,558		)	(2,274		)
Other investing activities	243			(76		)
Net cash used for investing activities	(69,693		)	(98,798		)
Financing Activities:
Increase (decrease) in notes payable, net	5,809			(27,338		)
Proceeds —
Common stock issued to parent	40,000			40,000
Capital contributions from parent company	556			732
Redemptions —
Senior notes	—			(16		)
Payment of preference stock dividends	(1,551		)	(1,551		)
Payment of common stock dividends	(28,850		)	(28,950		)
Other financing activities	(206		)	198
Net cash provided from (used for) financing activities	15,758			(16,925		)
Net Change in Cash and Cash Equivalents	(4,236		)	1,782
Cash and Cash Equivalents at Beginning of Period	32,167			17,328
Cash and Cash Equivalents at End of Period	$	27,931		$	19,110
Supplemental Cash Flow Information:
Cash paid (received) during the period for —
Interest (net of $601 and $493 capitalized for 2013 and 2012, respectively)	$	8,306		$	9,352
Income taxes, net	3,886			(35,742		)
Noncash transactions — accrued property additions at end of period	22,462			28,788

The accompanying notes as they relate to Gulf Power are an integral part of these condensed financial statements.

72

GULF POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Assets	At March 31, 2013			At December 31, 2012
	(in thousands)
Current Assets:
Cash and cash equivalents	$	27,931		$	32,167
Receivables —
Customer accounts receivable	61,190			58,449
Unbilled revenues	47,817			53,363
Under recovered regulatory clause revenues	15,153			6,138
Other accounts and notes receivable	13,019			11,859
Affiliated companies	8,709			13,624
Accumulated provision for uncollectible accounts	(1,261		)	(1,490		)
Fossil fuel stock, at average cost	152,287			153,710
Materials and supplies, at average cost	53,877			53,365
Other regulatory assets, current	20,475			30,576
Prepaid expenses	63,697			62,877
Other current assets	10,682			2,690
Total current assets	473,576			477,328
Property, Plant, and Equipment:
In service	4,261,604			4,260,844
Less accumulated provision for depreciation	1,170,499			1,168,055
Plant in service, net of depreciation	3,091,105			3,092,789
Construction work in progress	178,025			136,062
Total property, plant, and equipment	3,269,130			3,228,851
Other Property and Investments	15,494			15,737
Deferred Charges and Other Assets:
Deferred charges related to income taxes	50,664			50,139
Other regulatory assets, deferred	373,289			372,294
Other deferred charges and assets	33,531			33,053
Total deferred charges and other assets	457,484			455,486
Total Assets	$	4,215,684		$	4,177,402

The accompanying notes as they relate to Gulf Power are an integral part of these condensed financial statements.

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GULF POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Liabilities and Stockholder's Equity	At March 31, 2013			At December 31, 2012
	(in thousands)
Current Liabilities:
Securities due within one year	$	60,000		$	60,000
Notes payable	132,811			127,002
Accounts payable —
Affiliated	60,226			66,161
Other	44,953			54,551
Customer deposits	34,950			34,749
Accrued taxes —
Accrued income taxes	4,094			45
Other accrued taxes	12,302			7,036
Accrued interest	18,098			12,364
Accrued compensation	5,514			14,966
Other regulatory liabilities, current	18,903			25,887
Liabilities from risk management activities	7,782			16,529
Other current liabilities	20,429			19,930
Total current liabilities	420,062			439,220
Long-term Debt	1,186,022			1,185,870
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	660,762			648,952
Accumulated deferred investment tax credits	5,070			5,408
Employee benefit obligations	127,254			126,871
Other cost of removal obligations	218,801			213,413
Other regulatory liabilities, deferred	50,027			47,863
Deferred capacity expense	148,213			137,568
Other deferred credits and liabilities	86,514			93,497
Total deferred credits and other liabilities	1,296,641			1,273,572
Total Liabilities	2,902,725			2,898,662
Preference Stock	97,998			97,998
Common Stockholder's Equity:
Common stock, without par value—
Authorized — 20,000,000 shares
Outstanding — March 31, 2013: 4,942,717 shares
— December 31, 2012: 4,542,717 shares	433,060			393,060
Paid-in capital	548,933			547,798
Retained earnings	234,406			241,465
Accumulated other comprehensive loss	(1,438		)	(1,581		)
Total common stockholder's equity	1,214,961			1,180,742
Total Liabilities and Stockholder's Equity	$	4,215,684		$	4,177,402

The accompanying notes as they relate to Gulf Power are an integral part of these condensed financial statements.

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FIRST QUARTER 2013 vs. FIRST QUARTER 2012

OVERVIEW

Gulf Power operates as a vertically integrated utility providing electricity to retail customers within its traditional service area located in northwest Florida and to wholesale customers in the Southeast. Many factors affect the opportunities, challenges, and risks of Gulf Power's business of selling electricity. These factors include the ability to maintain a constructive regulatory environment, to maintain and grow energy sales given economic conditions, and to effectively manage and secure timely recovery of costs. These costs include those related to projected long-term demand growth, increasingly stringent environmental standards, reliability, restoration following major storms, and fuel. Appropriately balancing required costs and capital expenditures with customer prices will continue to challenge Gulf Power for the foreseeable future.

On May 9, 2013, in accordance with the Florida Administrative Code Rules, Gulf Power notified the Florida PSC of Gulf Power's intent to file for an increase in Gulf Power's base rates. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Retail Base Rate Case" herein for additional information.

Gulf Power continues to focus on several key performance indicators. These indicators include customer satisfaction, plant availability, system reliability, and net income after dividends on preference stock. For additional information on these indicators, see MANAGEMENT'S DISCUSSION AND ANALYSIS – OVERVIEW – "Key Performance Indicators" of Gulf Power in Item 7 of the Form 10-K.

RESULTS OF OPERATIONS

Net Income

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$1.1	5.4

Gulf Power's net income after dividends on preference stock for the first quarter 2013 was $21.8 million compared to $20.7 million for the corresponding period in 2012. The increase was primarily due to higher retail base revenues resulting from the retail base rate increase effective April 2012 and more favorable weather in the first quarter 2013 compared to the corresponding period in 2012. The increase was partially offset by a decrease in customer usage in 2013, lower wholesale capacity revenues from non-affiliates in 2013, and an increase in depreciation in 2013.

Retail Revenues

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$21.4	9.0

In the first quarter 2013, retail revenues were $259.9 million compared to $238.5 million for the corresponding period in 2012.

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Details of the change to retail revenues were as follows:

	First Quarter 2013
	(in millions)			(% change)
Retail – prior year	$	238.5
Estimated change in –
Rates and pricing	5.8			2.4
Sales growth (decline)	(2.7		)	(1.1	)
Weather	3.6			1.5
Fuel and other cost recovery	14.7			6.2
Retail – current year	$	259.9		9.0

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters" of Gulf Power in Item 7 and Note 1 to the financial statements of Gulf Power under "Revenues" and Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters" in Item 8 of the Form 10-K for additional information regarding Gulf Power's retail base rate case and cost recovery clauses, including Gulf Power's fuel cost recovery, purchased power capacity recovery, environmental cost recovery, and energy conservation cost recovery clauses.

Revenues associated with changes in rates and pricing increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to an increase in retail base revenues resulting from the retail base rate increase effective April 2012.

Revenues attributable to changes in sales decreased in the first quarter 2013 when compared to the corresponding period in 2012. Weather-adjusted KWH energy sales to residential and commercial customers decreased 2.7% and 1.1%, respectively, primarily due to a decrease in customer usage. KWH energy sales to industrial customers decreased 2.8% primarily due to increased customer co-generation.

Revenues attributable to changes in weather increased in the first quarter 2013 when compared to the corresponding period in 2012 due to more favorable weather in the first quarter 2013.

Fuel and other cost recovery revenues increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to higher revenues associated with recoverable fuel costs for generation and purchased power costs generally due to higher natural gas prices. Fuel and other cost recovery provisions include fuel expenses, the energy component of purchased power costs, purchased power capacity costs, and the difference between projected and actual costs and revenues related to energy conservation and environmental compliance. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Fuel Cost Recovery" herein for additional information.

Wholesale Revenues – Non-Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(5.9)	(21.8)

Wholesale revenues from sales to non-affiliates will vary depending on fuel prices, the market prices of wholesale energy compared to the cost of Gulf Power's and the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation. Wholesale revenues from sales to non-affiliates include unit power sales under long-term contracts to other utilities in Florida and Georgia. Wholesale revenues from these contracts have both capacity and energy components. Capacity revenues reflect the recovery of fixed costs and a return on investment under the contracts. Energy is generally sold at variable cost.

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In the first quarter 2013, wholesale revenues from non-affiliates were $21.2 million compared to $27.1 million for the corresponding period in 2012. The decrease primarily resulted from lower energy revenues related to a 47.0% decrease in KWH sales as a result of less energy scheduled by unit power customers to serve their loads. The decrease was also due to a 12.6% decrease in revenues primarily related to certain contract provisions that allow for cost adjustments related to compliance with new environmental requirements.

Wholesale Revenues – Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(6.9)	(19.0)

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. These affiliate sales are made in accordance with the IIC, as approved by the FERC. These transactions do not have a significant impact on earnings since the revenue related to these energy sales generally offsets the cost of energy sold.

In the first quarter 2013, wholesale revenues from sales to affiliates were $29.5 million compared to $36.4 million for the corresponding period in 2012. The decrease was primarily due to lower energy revenues related to a 32.4% decrease in KWH sales resulting from lower Gulf Power generation dispatched to serve affiliated companies' demand in the first quarter 2013 compared to the corresponding period in 2012. This decrease was partially offset by a 19.9% increase in the price of energy in the first quarter 2013.

Fuel and Purchased Power Expenses

	First Quarter 2013 vs. First Quarter 2012
	(change in millions)			(% change)
Fuel	$	(0.2	)	(0.2	)
Purchased power – non-affiliates	(0.1		)	(0.8	)
Purchased power – affiliates	0.8			31.8
Total fuel and purchased power expenses	$	0.5

In the first quarter 2013, total fuel and purchased power expenses were $135.3 million compared to $134.8 million for the corresponding period in 2012. The increase in fuel and purchased power expenses was due to a $21.5 million increase in the average cost of fuel and purchased power, partially offset by a $21.0 million decrease related to the volume of KWHs generated and purchased.

Fuel and purchased power transactions do not have a significant impact on earnings since energy and capacity expenses are generally offset by energy and capacity revenues through Gulf Power's fuel cost and purchased power capacity recovery clauses. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Fuel Cost Recovery" and "– Purchased Power Capacity Recovery" herein for additional information.

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Details of Gulf Power's generation and purchased power were as follows: 

	First Quarter 2013	First Quarter 2012
Total generation (millions of KWHs)	1,861	2,341
Total purchased power (millions of KWHs)	1,663	1,750
Sources of generation (percent) –
Coal	52	53
Gas	48	47
Cost of fuel, generated (cents per net KWH) –
Coal	4.68	4.29
Gas	3.72	3.44
Average cost of fuel, generated (cents per net KWH)	4.22	3.89
Average cost of purchased power (cents per net KWH)(a)	3.42	2.50

(a) Average cost of purchased power includes fuel purchased by Gulf Power for tolling agreements where power is

generated by the provider.

Fuel

In the first quarter 2013, fuel expense was $120.9 million compared to $121.1 million for the corresponding period in 2012. The decrease was not material.

Purchased Power – Non-Affiliates

In the first quarter 2013, purchased power expense from non-affiliates was $11.1 million compared to $11.2 million for the corresponding period in 2012. The decrease was not material.

Energy purchases from non-affiliates will vary depending on the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation.

Purchased Power – Affiliates

In the first quarter 2013, purchased power expense from affiliates was $3.3 million compared to $2.5 million for the corresponding period in 2012. The increase reflects an increase of $1.3 million in energy costs, offset by a decrease of $0.5 million in capacity costs. The increase in energy costs was due to an increase in the volume of KWHs purchased and a higher average cost per KWH purchased.

Energy purchases from affiliates will vary depending on demand and the availability and cost of generating resources at each company within the Southern Company system. These purchases are made in accordance with the IIC or other contractual agreements, all as approved by the FERC.

Other Operations and Maintenance Expenses

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$3.4	4.6

In the first quarter 2013, other operations and maintenance expenses were $78.6 million compared to $75.2 million for the corresponding period in 2012. The increase was primarily due to increases of $1.5 million for transmission service related to a third party PPA, $1.3 million for labor and benefit-related expenses, and $1.3 million in marketing programs. The increased expense from transmission service did not have a significant impact on earnings since the expense was offset by purchased power capacity revenues through Gulf Power's purchased power capacity recovery clause. The increased expense from marketing programs did not have a significant impact on earnings

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since the expense was offset by energy conservation revenues through Gulf Power's energy conservation cost recovery clause. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Purchased Power Capacity Recovery" and "– Energy Conservation Cost Recovery" herein for additional information.

Depreciation and Amortization

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$3.7	11.2

In the first quarter 2013, depreciation and amortization was $37.0 million compared to $33.3 million for the corresponding period in 2012. The increase was primarily due to the addition of environmental control projects at generation facilities and other net additions to transmission and distribution facilities.

Interest Expense, Net of Amounts Capitalized

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(1.0)	(6.5)

In the first quarter 2013, interest expense, net of amounts capitalized was $14.4 million compared to $15.4 million for the corresponding period in 2012. The decrease was primarily due to lower interest rates on pollution control bonds, senior notes, and customer deposits.

Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$2.4	20.0

In the first quarter 2013, income taxes were $14.1 million compared to $11.7 million for the corresponding period in 2012. The increase was primarily due to higher pre-tax earnings and the recognition in 2012 of previously unrecognized tax benefits.

FUTURE EARNINGS POTENTIAL

The results of operations discussed above are not necessarily indicative of Gulf Power's future earnings potential. The level of Gulf Power's future earnings depends on numerous factors that affect the opportunities, challenges, and risks of Gulf Power's business of selling electricity. These factors include Gulf Power's ability to maintain a constructive regulatory environment that continues to allow for the timely recovery of prudently-incurred costs during a time of increasing costs. Future earnings in the near term will depend, in part, upon maintaining energy sales which is subject to a number of factors. These factors include weather, competition, new energy contracts with neighboring utilities, energy conservation practiced by customers, the price of electricity, the price elasticity of demand, and the rate of economic growth or decline in Gulf Power's service territory. Changes in regional and global economic conditions may impact sales for Gulf Power as the pace of the economic recovery remains uncertain. The timing and extent of the economic recovery will impact growth and may impact future earnings. For additional information relating to these issues, see RISK FACTORS in Item 1A and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL of Gulf Power in Item 7 of the Form 10-K.

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Environmental Matters

Compliance costs related to federal and state environmental statutes and regulations could affect earnings if such costs cannot continue to be fully recovered in rates on a timely basis. Environmental compliance spending over the next several years may differ materially from the amounts estimated. The timing, specific requirements, and estimated costs could change as environmental statutes and regulations are adopted or modified. Further, higher costs that are recovered through regulated rates could contribute to reduced demand for electricity, which could negatively affect results of operations, cash flows, and financial condition. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters" of Gulf Power in Item 7 and Note 3 to the financial statements of Gulf Power under "Environmental Matters" in Item 8 of the Form 10-K for additional information.

Gulf Power has determined it is not economical to add the environmental controls at Plant Scholz necessary to comply with the MATS rule and that coal-fired generation at Plant Scholz will cease by April 2015. The plant is scheduled to be fully depreciated by April 2015.

Environmental Statutes and Regulations

Air Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality" of Gulf Power in Item 7 of the Form 10-K for information regarding the EPA's MATS rule. On April 24, 2013, the EPA published a final reconsideration rule addressing new source standards within the MATS rule. Although the EPA had considered revisions to the startup and shutdown provisions of the MATS rule, a final decision on these provisions was deferred. The ultimate impact of this rulemaking will depend on the outcome of any additional rulemaking and/or legal challenges and, therefore, cannot be determined at this time.

Water Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Water Quality" of Gulf Power in Item 7 of the Form 10-K for additional information regarding the EPA's proposed revision of the current steam electric effluent guidelines. On April 19, 2013, the EPA signed a proposed rule which requests comments on a range of potential regulatory options for addressing certain wastestreams from steam electric power plants. These regulations could result in the installation of additional controls at certain of Gulf Power's facilities, which could result in significant capital expenditures and compliance costs that could affect future unit retirement and replacement decisions. The ultimate impact of these proposed regulations will, however, depend on the specific requirements of the final rule and the outcome of any legal challenges and cannot be determined at this time.

PSC Matters

Retail Base Rate Case

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Retail Base Rate Case" of Gulf Power in Item 7 and Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Retail Base Rate Case" in Item 8 of the Form 10-K for additional information.

On May 9, 2013, in accordance with the Florida Administrative Code Rules, Gulf Power notified the Florida PSC of Gulf Power's intent to file for an increase in Gulf Power's base rates, not sooner than July 8, 2013 (60 days after the notification) and not later than July 22, 2013. Gulf Power is proposing the projected 12 months ending December 31, 2014 as the test year for the anticipated rate case filing. The proposed test year is a calendar year that corresponds to Gulf Power's fiscal year and largely corresponds with the first fiscal period that new, permanent rates could be in effect. Gulf Power currently estimates that an increase in annual revenues between $75 million and $80 million will be requested. The ultimate outcome of this matter cannot be determined at this time.

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Cost Recovery Clauses

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses" of Gulf Power in Item 7 and Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses" in Item 8 of the Form 10-K for additional information.

Fuel Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Fuel Cost Recovery" of Gulf Power in Item 7 and Notes 1 and 3 to the financial statements of Gulf Power under "Revenues" and "Retail Regulatory Matters – Cost Recovery Clauses – Fuel Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information.

Over recovered fuel costs at March 31, 2013 totaled $5.1 million compared to $17.1 million at December 31, 2012. These amounts are included in other regulatory liabilities, current on Gulf Power's Condensed Balance Sheets herein.

Purchased Power Capacity Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Purchased Power Capacity Recovery" of Gulf Power in Item 7 and Notes 1 and 3 to the financial statements of Gulf Power under "Revenues" and "Retail Regulatory Matters – Cost Recovery Clauses – Purchased Power Capacity Recovery," respectively, in Item 8 of the Form 10-K for additional information.

At March 31, 2013, the over recovered purchased power capacity costs totaled $1.8 million, which is included in other regulatory liabilities, current on Gulf Power's Condensed Balance Sheets herein. At December 31, 2012, the under recovered purchased power capacity costs totaled $0.8 million, which is included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Environmental Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Environmental Cost Recovery" of Gulf Power in Item 7 and Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses – Environmental Cost Recovery" in Item 8 of the Form 10-K for additional information.

Under recovered environmental costs at March 31, 2013 totaled $8.9 million compared to $1.9 million at December 31, 2012. These amounts are included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Energy Conservation Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Cost Recovery Clauses – Energy Conservation Cost Recovery" of Gulf Power in Item 7 and Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses – Energy Conservation Cost Recovery" in Item 8 of the Form 10-K for additional information.

Under recovered energy conservation costs at March 31, 2013 totaled $3.0 million compared to $0.8 million at December 31, 2012. These amounts are included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Other Matters

Gulf Power is involved in various other matters being litigated and regulatory matters that could affect future earnings. In addition, Gulf Power is subject to certain claims and legal actions arising in the ordinary course of business. Gulf Power's business activities are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues

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and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent. The ultimate outcome of such pending or potential litigation against Gulf Power cannot be predicted at this time; however, for current proceedings not specifically reported in Note (B) to the Condensed Financial Statements herein or in Note 3 to the financial statements of Gulf Power in Item 8 of the Form 10-K, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on Gulf Power's financial statements.

See the Notes to the Condensed Financial Statements herein for a discussion of various other contingencies, regulatory matters, and other matters being litigated which may affect future earnings potential.

ACCOUNTING POLICIES

Application of Critical Accounting Policies and Estimates

Gulf Power prepares its financial statements in accordance with GAAP. Significant accounting policies are described in Note 1 to the financial statements of Gulf Power in Item 8 of the Form 10-K. In the application of these policies, certain estimates are made that may have a material impact on Gulf Power's results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements. See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES – "Application of Critical Accounting Policies and Estimates" of Gulf Power in Item 7 of the Form 10-K for a complete discussion of Gulf Power's critical accounting policies and estimates related to Electric Utility Regulation, Contingent Obligations, and Pension and Other Postretirement Benefits.

FINANCIAL CONDITION AND LIQUIDITY

Overview

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Overview" of Gulf Power in Item 7 of the Form 10-K for additional information. Gulf Power's financial condition remained stable at March 31, 2013. Gulf Power intends to continue to monitor its access to short-term and long-term capital markets as well as its bank credit arrangements to meet future capital and liquidity needs. See "Sources of Capital," "Financing Activities," and "Capital Requirements and Contractual Obligations" herein for additional information.

Net cash provided from operating activities totaled $49.7 million for the first three months of 2013 compared to $117.5 million for the corresponding period in 2012. The $67.8 million decrease was primarily due to decreases in deferred income taxes related to bonus depreciation, prepaid income taxes, and the recovery of fuel costs. Net cash used for investing activities totaled $69.7 million in the first three months of 2013 primarily due to property additions to utility plant and costs of removal. Net cash provided from financing activities totaled $15.8 million for the first three months of 2013. This was primarily due to issuances of common stock and an increase in notes payable, partially offset by payment of common stock dividends. Fluctuations in cash flow from financing activities vary from year to year based on capital needs and the maturity or redemption of securities.

Significant balance sheet changes for the first three months of 2013 include a net increase of $40.3 million in property, plant, and equipment, primarily due to the addition of environmental control projects at generation facilities and other net additions to transmission and distribution facilities and an increase in common stock due to the issuance of common stock to Southern Company for $40 million.

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Capital Requirements and Contractual Obligations

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Capital Requirements and Contractual Obligations" of Gulf Power in Item 7 of the Form 10-K for a description of Gulf Power's capital requirements for its construction program, including estimated capital expenditures to comply with existing environmental statutes and regulations, scheduled maturities of long-term debt, as well as the related interest, leases, derivative obligations, preference stock dividends, purchase commitments, trust funding requirements, and unrecognized tax benefits. See FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations" herein for additional information. Approximately $60 million will be required through March 31, 2014 to fund maturities of long-term debt.

The construction program is subject to periodic review and revision, and actual construction costs may vary from these estimates because of numerous factors. These factors include: changes in business conditions; changes in load projections; storm impacts; changes in environmental statutes and regulations; the outcome of any legal challenges to the environmental rules; changes in generating plants, including unit retirements and replacements and adding or changing fuel sources at existing units, to meet regulatory requirements; changes in the expected environmental compliance programs; changes in FERC rules and regulations; Florida PSC approvals; changes in legislation; the cost and efficiency of construction labor, equipment, and materials; project scope and design changes; and the cost of capital. In addition, there can be no assurance that costs related to capital expenditures will be fully recovered.

Sources of Capital

Gulf Power plans to obtain the funds required for construction and other purposes from sources similar to those used in the past, which were primarily from operating cash flows, short-term debt, security issuances, term loans, and equity contributions from Southern Company. However, the amount, type, and timing of any future financings, if needed, will depend upon regulatory approval, prevailing market conditions, and other factors. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" of Gulf Power in Item 7 of the Form 10-K for additional information.

Gulf Power's current liabilities frequently exceed current assets because of the continued use of short-term debt as a funding source to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate significantly due to the seasonality of the business.

At March 31, 2013, Gulf Power had approximately $27.9 million of cash and cash equivalents. Committed credit arrangements with banks at March 31, 2013 were as follows:

Expires(a)										Executable Term Loans				Due Within One Year
2013		2014		2016		Total		Unused		One     Year		Two     Years		Term     Out		No Term Out
(in millions)						(in millions)				(in millions)				(in millions)
$	45	$	60	$	165	$	270	$	270	$	45	$	—	$	45	$	30

(a) No credit arrangements expire in 2015.

See Note 6 to the financial statements of Gulf Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

These credit arrangements provide liquidity support to Gulf Power's commercial paper borrowings and variable rate pollution control revenue bonds. The amount of variable rate pollution control revenue bonds outstanding requiring liquidity support as of March 31, 2013 was approximately $69 million. In addition, Gulf Power has substantial cash flows from operating activities and access to the capital markets to meet liquidity needs.

In March 2013, Gulf Power amended several credit arrangements, which extended the maturity dates from 2014 to 2016. Gulf Power also amended a $35 million credit arrangement, which reduced the amount to $30 million and

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extended the maturity date from 2013 to 2014. Subsequent to March 31, 2013, Gulf Power entered into a new credit arrangement for $5 million with a maturity date of 2014.

Most of these arrangements contain covenants that limit debt levels and contain cross default provisions that are restricted only to the indebtedness of Gulf Power. Gulf Power is currently in compliance with all such covenants. Gulf Power expects to renew its credit arrangements, as needed, prior to expiration.

Gulf Power may also meet short-term cash needs through a Southern Company subsidiary organized to issue and sell commercial paper at the request and for the benefit of Gulf Power and the other traditional operating companies. Proceeds from such issuances for the benefit of Gulf Power are loaned directly to Gulf Power. The obligations of each company under these arrangements are several and there is no cross affiliate credit support.

Details of short-term borrowings were as follows: 

	Short-term Debt at March 31, 2013				Short-term Debt During the Period(a)
	Amount Outstanding		Weighted Average Interest Rate		Average Outstanding		Weighted Average Interest Rate		Maximum Amount Outstanding
	(in millions)				(in millions)				(in millions)
Commercial paper	$	130	0.3	%	$	114	0.3	%	$	130

(a) Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2013.

Management believes that the need for working capital can be adequately met by utilizing the commercial paper program, lines of credit, and cash.

Credit Rating Risk

Gulf Power does not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change to BBB- and/or Baa3 or below. These contracts are for physical electricity purchases and sales, fuel transportation and storage, and energy price risk management. The maximum potential collateral requirements under these contracts at March 31, 2013 were as follows:

Credit Ratings	Maximum Potential Collateral Requirements
	(in millions)
At BBB- and/or Baa3	$	117
Below BBB- and/or Baa3	484

Included in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participant has a credit rating change to below investment grade. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. Additionally, any credit rating downgrade could impact Gulf Power's ability to access capital markets, particularly the short-term debt market and the variable rate pollution control revenue bond markets.

Market Price Risk

Gulf Power's market risk exposure relative to interest rate changes for the first quarter 2013 has not changed materially compared with the December 31, 2012 reporting period. Since a significant portion of outstanding indebtedness is at fixed rates, Gulf Power is not aware of any facts or circumstances that would significantly affect exposures on existing indebtedness in the near term. However, the impact on future financing costs cannot now be determined.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Due to cost-based rate regulation and other various cost recovery mechanisms, Gulf Power continues to have limited exposure to market volatility in interest rates, commodity fuel prices, and prices of electricity. To mitigate residual risks relative to natural gas purchases, Gulf Power continues to manage a financial hedging program for fuel purchased to operate its electric generating fleet implemented per the guidelines of the Florida PSC. As a result, Gulf Power had no material change in market risk exposure for the first quarter 2013 when compared with the December 31, 2012 reporting period.

The changes in fair value of energy-related derivative contracts, substantially all of which are composed of regulatory hedges, for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Contracts outstanding at the beginning of the period, assets (liabilities), net	$	(23	)
Contracts realized or settled	5
Current period changes(a)	16
Contracts outstanding at the end of the period, assets (liabilities), net	$	(2	)

(a) Current period changes also include the changes in fair value of new contracts entered into during the period, if any.

The changes in the fair value positions of the energy-related derivative contracts, which are substantially all attributable to both the volume and the price of natural gas, for the three months ended March 31, 2013 were as follows: 

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Natural gas swaps	$	21
Natural gas options	—
Total changes	$	21

The net hedge volumes of energy-related derivative contracts were as follows: 

	March 31, 2013	December 31, 2012
	mmBtu Volume
	(in millions)
Commodity – Natural gas swaps	70	71
Commodity – Natural gas options	—	—
Total hedge volume	70	71

The weighted average swap contract cost above market prices was approximately $0.02 per mmBtu as of March 31, 2013 and $0.32 per mmBtu as of December 31, 2012. The change in option fair value is primarily attributable to the volatility of the market and the underlying change in the natural gas price. Natural gas settlements are recovered through Gulf Power's fuel cost recovery clause.

Regulatory hedges relate to Gulf Power's fuel-hedging program where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as they are recovered through Gulf Power's fuel cost recovery clause.

85

GULF POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Unrealized pre-tax gains and losses recognized in income for the three months ended March 31, 2013 and 2012 for energy-related derivative contracts that are not hedges were not material.

Gulf Power uses over-the-counter contracts that are not exchange traded but are fair valued using prices which are market observable, and thus fall into Level 2. See Note (C) to the Condensed Financial Statements herein for further discussion on fair value measurements. The maturities of the energy-related derivative contracts, which are all Level 2 of the fair value hierarchy, at March 31, 2013 were as follows:

	March 31, 2013     Fair Value Measurements
	Total			Maturity
	Fair Value			Year 1		Years 2&3			Years 4&5
	(in millions)
Level 1	$	—		$	—	$	—		$	—
Level 2	(2		)	1		(2		)	(1		)
Level 3	—			—		—			—
Fair value of contracts outstanding at end of period	$	(2	)	$	1	$	(2	)	$	(1	)

For additional information, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" of Gulf Power in Item 7 and Note 1 under "Financial Instruments" and Note 10 to the financial statements of Gulf Power in Item 8 of the Form 10-K and Note (H) to the Condensed Financial Statements herein.

Financing Activities

In February 2013, Gulf Power issued to Southern Company 400,000 shares of Gulf Power's common stock and realized proceeds of $40 million. The proceeds were used to repay a portion of Gulf Power's short-term debt and for other general corporate purposes, including Gulf Power's continuous construction program.

In addition to any financings that may be necessary to meet capital requirements, contractual obligations, and storm-recovery, Gulf Power plans to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

86

MISSISSIPPI POWER COMPANY

87

MISSISSIPPI POWER COMPANY

CONDENSED STATEMENTS OF OPERATIONS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Operating Revenues:
Retail revenues	$	168,310		$	166,271
Wholesale revenues, non-affiliates	65,109			54,231
Wholesale revenues, affiliates	8,341			4,040
Other revenues	4,174			4,172
Total operating revenues	245,934			228,714
Operating Expenses:
Fuel	104,564			88,619
Purchased power, non-affiliates	1,367			1,943
Purchased power, affiliates	9,689			8,860
Other operations and maintenance	54,812			54,895
Depreciation and amortization	23,233			22,481
Taxes other than income taxes	19,417			21,703
Estimated loss on Kemper IGCC	462,000			—
Total operating expenses	675,082			198,501
Operating Income (Loss)	(429,148		)	30,213
Other Income and (Expense):
Allowance for equity funds used during construction	26,074			11,827
Interest expense, net of amounts capitalized	(10,409		)	(7,805		)
Other income (expense), net	(1,547		)	(122		)
Total other income and (expense)	14,118			3,900
Earnings (Loss) Before Income Taxes	(415,030		)	34,113
Income taxes (benefit)	(169,142		)	8,425
Net Income (Loss)	(245,888		)	25,688
Dividends on Preferred Stock	433			433
Net Income (Loss) After Dividends on Preferred Stock	$	(246,321	)	$	25,255

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Net Income (Loss)	$	(245,888	)	$	25,688
Other comprehensive income (loss):
Qualifying hedges:
Changes in fair value, net of tax of $- and $(296), respectively	—			(478		)
Reclassification adjustment for amounts included in net income, net of tax of $131 and $16, respectively	212			26
Total other comprehensive income (loss)	212			(452		)
Comprehensive Income (Loss)	$	(245,676	)	$	25,236

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

88

MISSISSIPPI POWER COMPANY

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Operating Activities:
Net income (loss)	$	(245,888	)	$	25,688
Adjustments to reconcile net income (loss)   to net cash provided from (used for) operating activities —
Depreciation and amortization, total	21,692			21,931
Deferred income taxes	(174,082		)	(1,210		)
Investment tax credits received	—			13,974
Allowance for equity funds used during construction	(26,074		)	(11,827		)
Pension, postretirement, and other employee benefits	2,926			2,268
Hedge settlements	—			(15,983		)
Stock based compensation expense	1,033			957
Regulatory assets associated with Kemper IGCC	(6,843		)	(2,243		)
Estimated loss on Kemper IGCC	462,000			—
Other, net	(628		)	1,117
Changes in certain current assets and liabilities —
-Receivables	(5,226		)	14,536
-Fossil fuel stock	8,415			(16,188		)
-Materials and supplies	(4,744		)	(538		)
-Prepaid income taxes	1,573			4,168
-Other current assets	(2,389		)	(4,357		)
-Accounts payable	(13,783		)	(11,558		)
-Accrued taxes	(45,429		)	(31,434		)
-Accrued interest	6,570			9,514
-Accrued compensation	(10,247		)	(10,803		)
-Over recovered regulatory clause revenues	2,996			12,627
-Other current liabilities	2,971			(35		)
Net cash provided from (used for) operating activities	(25,157		)	604
Investing Activities:
Property additions	(369,313		)	(370,923		)
Cost of removal, net of salvage	(902		)	(1,149		)
Construction payables	23,150			30,080
Capital grant proceeds	1,784			1,816
Other investing activities	(7,145		)	(4,207		)
Net cash used for investing activities	(352,426		)	(344,383		)
Financing Activities:
Proceeds —
Capital contributions from parent company	100,552			150,735
Bonds-Other	15,814			—
Senior notes issuances	—			400,000
Interest-bearing refundable deposit related to asset sale	—			150,000
Other long-term debt issuances	350,000			—
Redemptions —
Capital leases	—			(377		)
Other long-term debt	—			(75,000		)
Payment of preferred stock dividends	(433		)	(433		)
Payment of common stock dividends	(44,190		)	(26,700		)
Other financing activities	(1,409		)	715
Net cash provided from financing activities	420,334			598,940
Net Change in Cash and Cash Equivalents	42,751			255,161
Cash and Cash Equivalents at Beginning of Period	145,008			211,585
Cash and Cash Equivalents at End of Period	$	187,759		$	466,746
Supplemental Cash Flow Information:
Cash paid (received) during the period for —
Interest (paid $16,001 and $5,965, net of $11,141 and $6,565 capitalized for 2013 and 2012, respectively)	$	4,860		$	—
Income taxes, net	(25		)	(11,994		)
Noncash transactions—accrued property additions at end of period	238,013			165,982

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

89

MISSISSIPPI POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Assets	At March 31, 2013			At December 31, 2012
	(in thousands)
Current Assets:
Cash and cash equivalents	$	187,759		$	145,008
Receivables —
Customer accounts receivable	32,288			29,561
Unbilled revenues	33,324			32,688
Other accounts and notes receivable	5,851			7,517
Affiliated companies	31,475			27,160
Accumulated provision for uncollectible accounts	(298		)	(373		)
Fossil fuel stock, at average cost	167,963			176,378
Materials and supplies, at average cost	39,004			34,260
Other regulatory assets, current	53,058			55,302
Prepaid income taxes	173,818			129,835
Other current assets	33,268			17,170
Total current assets	757,510			654,506
Property, Plant, and Equipment:
In service	3,073,750			3,036,159
Less accumulated provision for depreciation	1,083,639			1,065,474
Plant in service, net of depreciation	1,990,111			1,970,685
Construction work in progress	2,289,256			2,393,145
Total property, plant, and equipment	4,279,367			4,363,830
Other Property and Investments	4,836			4,887
Deferred Charges and Other Assets:
Deferred charges related to income taxes	81,855			71,869
Other regulatory assets, deferred	244,585			236,225
Other deferred charges and assets	36,943			42,304
Total deferred charges and other assets	363,383			350,398
Total Assets	$	5,405,096		$	5,373,621

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

90

MISSISSIPPI POWER COMPANY

CONDENSED BALANCE SHEETS (UNAUDITED)

Liabilities and Stockholder's Equity	At March 31, 2013			At December 31, 2012
	(in thousands)
Current Liabilities:
Securities due within one year	$	342,285		$	276,471
Interest-bearing refundable deposit related to asset sale	150,000			150,000
Accounts payable —
Affiliated	53,795			54,769
Other	273,305			262,992
Customer deposits	14,415			14,202
Accrued taxes —
Accrued income taxes	4,750			2,339
Other accrued taxes	21,951			69,376
Accrued interest	36,946			30,376
Accrued compensation	5,459			15,706
Other regulatory liabilities, current	10,863			5,376
Over recovered regulatory clause liabilities	80,333			77,338
Liabilities from risk management activities	6,671			13,116
Other current liabilities	19,200			18,766
Total current liabilities	1,019,973			990,827
Long-term Debt	1,869,056			1,564,462
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	80,676			244,958
Deferred credits related to income taxes	9,676			10,106
Accumulated deferred investment tax credits	420,678			370,554
Employee benefit obligations	157,542			157,421
Other cost of removal obligations	148,190			143,461
Other regulatory liabilities, deferred	56,457			56,984
Other deferred credits and liabilities	49,842			52,860
Total deferred credits and other liabilities	923,061			1,036,344
Total Liabilities	3,812,090			3,591,633
Redeemable Preferred Stock	32,780			32,780
Common Stockholder's Equity:
Common stock, without par value —
Authorized —1,130,000 shares
Outstanding—1,121,000 shares	37,691			37,691
Paid-in capital	1,502,836			1,401,520
Retained earnings	28,199			318,710
Accumulated other comprehensive loss	(8,500		)	(8,713		)
Total common stockholder's equity	1,560,226			1,749,208
Total Liabilities and Stockholder's Equity	$	5,405,096		$	5,373,621

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

91

MISSISSIPPI POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FIRST QUARTER 2013 vs. FIRST QUARTER 2012

OVERVIEW

Mississippi Power operates as a vertically integrated utility providing electricity to retail customers within its traditional service territory located within the State of Mississippi and to wholesale customers in the Southeast. Many factors affect the opportunities, challenges, and risks of Mississippi Power's business of selling electricity. These factors include the ability to maintain a constructive regulatory environment, to maintain and grow energy sales given economic conditions, and to effectively manage and secure timely recovery of rising costs. These costs include those related to projected long-term demand growth, increasingly stringent environmental standards, reliability, fuel, capital expenditures, and restoration following major storms. In addition, Mississippi Power is currently constructing the Kemper IGCC. Mississippi Power has various regulatory mechanisms that operate to address cost recovery. Appropriately balancing required costs and capital expenditures with customer prices will continue to challenge Mississippi Power for the foreseeable future.

On March 5, 2013, the Mississippi PSC issued an order with respect to Mississippi Power's request for an increase in rates which allows Mississippi Power an annual rate designed to collect $125 million for 2013, with such amounts to be recorded as a regulatory liability to be used to mitigate rate impacts when the Kemper IGCC is placed in service, increasing to $156 million in 2014, which represents a 15% and 3% increase in retail rates for 2013 and 2014, respectively. Also on March 5, 2013, the Mississippi PSC approved a $15.3 million, or 1.9%, increase in annual rates under Mississippi Power's PEP and a $35.5 million, or 4.7%, decrease in annual rates due to an annual adjustment to the retail fuel cost recovery factor, with all new rates effective March 19, 2013.

On April 23, 2013, Mississippi Power revised its cost estimate for the Kemper IGCC to approximately $3.42 billion, net of the DOE Grants and certain exceptions to the $2.88 billion cost cap established by the Mississippi PSC. For additional information on the Kemper IGCC, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" of Mississippi Power in Item 7 of the Form 10-K/A, Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A and FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein.

Mississippi Power continues to focus on several key performance indicators. In recognition that Mississippi Power's long-term financial success is dependent upon how well it satisfies its customers' needs, Mississippi Power's retail base rate mechanism, PEP, includes performance indicators that directly tie customer service indicators to Mississippi Power's allowed return. In addition to the PEP performance indicators, Mississippi Power focuses on other performance measures, including broader measures of customer satisfaction, plant availability, system reliability, and net income after dividends on preferred stock. For additional information on these indicators, see MANAGEMENT'S DISCUSSION AND ANALYSIS – OVERVIEW – "Key Performance Indicators" of Mississippi Power in Item 7 of the Form 10-K/A.

92

MISSISSIPPI POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

RESULTS OF OPERATIONS

Net Income (Loss)

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(271.6)	N/M

N/M - Not meaningful

Mississippi Power's net loss after dividends on preferred stock for the first quarter 2013 was $246.3 million compared to net income after dividends on preferred stock of $25.3 million for the corresponding period in 2012. The decrease was primarily related to a revision of estimated costs expected to be incurred on Mississippi Power's construction of the Kemper IGCC above the $2.88 billion cost cap established by the Mississippi PSC, net of $245 million of grants awarded to the project by the DOE under the Clean Coal Power Initiative Round 2 (DOE Grants) and the cost of the lignite mine and equipment, the cost of the carbon dioxide (CO₂) pipeline facilities, AFUDC, and certain general exceptions, including change of law, force majeure, and beneficial capital (which exists when Mississippi Power demonstrates that the purpose and effect of the construction cost increase is to produce efficiencies that will result in a neutral or favorable effect on customers relative to the original proposal for the CPCN) (Cost Cap Exceptions). The loss was partially offset by an increase in AFUDC equity primarily related to the construction of the Kemper IGCC and an increase in territorial base revenues primarily due to a wholesale base rate increase effective April 1, 2012.

Retail Revenues

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$2.0	1.2

In the first quarter 2013, retail revenues were $168.3 million compared to $166.3 million for the corresponding period in 2012.

Details of the change to retail revenues were as follows:

	First Quarter 2013
	(in millions)			(% change)
Retail – prior year	$	166.3
Estimated change in –
Rates and pricing	(3.7		)	(2.2	)
Sales growth (decline)	(2.9		)	(1.7	)
Weather	3.5			2.1
Fuel and other cost recovery	5.1			3.1
Retail – current year	$	168.3		1.3	%

Revenues associated with changes in rates and pricing decreased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to a $4.7 million accrual for a retail refund related to the annual PEP lookback filing. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Performance Evaluation Plan" herein for additional information.

Revenues attributable to changes in sales decreased in the first quarter 2013 when compared to the corresponding period in 2012. Weather-adjusted KWH energy sales to residential and commercial customers decreased 1.8% and 1.4%, respectively, when compared to the corresponding period in 2012 due to decreased economic activity. KWH energy sales to industrial customers decreased 4.1% due to decreased production for several larger customers.

93

MISSISSIPPI POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Revenues attributable to changes in weather increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily due to more favorable weather in the first quarter 2013.

Fuel and other cost recovery revenues increased in the first quarter 2013 when compared to the corresponding period in 2012 primarily as a result of higher recoverable fuel costs. Recoverable fuel costs include fuel and purchased power expenses reduced by the fuel portion of wholesale revenues from energy sold to customers outside Mississippi Power's service territory. Electric rates include provisions to adjust billings for fluctuations in fuel costs, including the energy component of purchased power costs. Under these provisions, fuel revenues generally equal fuel expenses, including the energy component of purchased power costs, and do not affect net income.

The retail portion of ad valorem tax expense is recoverable under Mississippi Power's ad valorem tax cost recovery clause and, therefore, does not affect net income.

Wholesale Revenues – Non-Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$10.9	20.1

Wholesale revenues from sales to non-affiliates will vary depending on fuel prices, the market prices of wholesale energy compared to the cost of Mississippi Power's and the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation. Increases and decreases in revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income.

In the first quarter 2013, wholesale revenues from non-affiliates were $65.1 million compared to $54.2 million for the corresponding period in 2012. The increase was due to a $6.3 million increase in revenues primarily resulting from a wholesale base rate increase effective April 1, 2012 and a $4.6 million increase in energy revenues, of which $2.4 million was associated with higher fuel prices and $2.2 million was associated with an increase in KWH sales due to higher demand resulting from more favorable weather in the first quarter 2013 compared to the corresponding period in 2012.

Wholesale Revenues – Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$4.3	N/M

N/M - Not meaningful

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. These affiliated sales and purchases are made in accordance with the IIC, as approved by the FERC. These transactions do not have a significant impact on earnings since the energy is generally sold at marginal cost.

In the first quarter 2013, wholesale revenues from affiliates were $8.3 million compared to $4.0 million for the corresponding period in 2012. The increase was primarily due to a $4.4 million increase in energy revenues, of which $3.0 million was associated with an increase in KWH sales and $1.4 million was associated with higher energy prices.

94

MISSISSIPPI POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Fuel and Purchased Power Expenses

	First Quarter 2013 vs. First Quarter 2012
	(change in millions)			(% change)
Fuel	$	16.0		18.0
Purchased power – non-affiliates	(0.6		)	(29.6	)
Purchased power – affiliates	0.8			9.4
Total fuel and purchased power expenses	$	16.2

In the first quarter 2013, total fuel and purchased power expenses were $115.6 million compared to $99.4 million for the corresponding period in 2012. The increase was primarily due to a $9.4 million increase in the total volume of KWHs generated and purchased and a $6.8 million increase in the cost of fuel and purchased power.

Fuel and purchased power energy transactions do not have a significant impact on earnings since energy expenses are generally offset by energy revenues through Mississippi Power's fuel cost recovery clause. See FUTURE EARNINGS POTENTIAL – "PSC Matters – Fuel Cost Recovery" herein for additional information.

Details of Mississippi Power's generation and purchased power were as follows:

	First Quarter 2013	First Quarter 2012
Total generation (millions of KWHs)	3,204	2,982
Total purchased power (millions of KWHs)	393	447
Sources of generation (percent) –
Coal	27	21
Gas	73	79
Cost of fuel, generated (cents per net KWH) –
Coal	5.03	4.77
Gas	2.98	2.83
Average cost of fuel, generated (cents per net KWH)	3.57	3.29
Average cost of purchased power (cents per net KWH)	2.82	2.42

Fuel

In the first quarter 2013, fuel expense was $104.6 million compared to $88.6 million for the corresponding period in 2012. The increase was primarily due to an 8.5% increase in the average cost of fuel per KWH generated and an 8.6% increase in the volume of KWHs generated resulting from higher energy demand in the first quarter 2013 compared to the corresponding period in 2012.

Purchased Power – Non-Affiliates

In the first quarter 2013, purchased power expense from non-affiliates was $1.3 million compared to $1.9 million for the corresponding period in 2012. The decrease was primarily the result of a 20.0% decrease in the volume of KWHs purchased and a 12.3% decrease in the average cost per KWH purchased.

Energy purchases from non-affiliates will vary depending on the market prices of wholesale energy compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's service territory, and the availability of the Southern Company system's generation.

95

MISSISSIPPI POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Purchased Power – Affiliates

In the first quarter 2013, purchased power expense from affiliates was $9.7 million compared to $8.9 million for the corresponding period in 2012. The increase was primarily due to a 21.8% increase in the average cost per KWH purchased, partially offset by a 9.9% decrease in the volume of KWHs purchased.

Energy purchases from affiliates will vary depending on demand for energy and the availability and cost of generating resources at each company within the Southern Company system. These purchases are made in accordance with the IIC, as approved by the FERC.

Other Operations and Maintenance Expenses

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(0.1)	(0.2)

In the first quarter 2013, other operations and maintenance expenses were $54.8 million compared to $54.9 million for the corresponding period in 2012. The decrease was primarily due to a $2.1 million decrease in generation maintenance expenses related to scheduled outages and a $0.8 million decrease in distribution expenses related to overhead line maintenance and vegetation management costs. These decreases were partially offset by a $3.1 million increase in administrative and general expenses.

Taxes Other Than Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(2.3)	(10.5)

In the first quarter 2013, taxes other than income taxes were $19.4 million compared to $21.7 million for the corresponding period in 2012. The decrease was primarily due to a $1.8 million decrease in ad valorem taxes and a $0.4 million decrease in franchise taxes. The retail portion of ad valorem taxes is recoverable under Mississippi Power's ad valorem tax cost recovery clause and, therefore, does not affect net income.

Estimated Loss on Kemper IGCC

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$462.0	N/M

N/M - Not meaningful

In the first quarter 2013, an estimated probable loss on the Kemper IGCC of $462.0 million was recorded to reflect a revision of estimated costs expected to be incurred on the construction of the Kemper IGCC in excess of the $2.88 billion cost cap established by the Mississippi PSC, net of the DOE Grants and the Cost Cap Exceptions. See Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A and FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information.

Allowance for Equity Funds Used During Construction

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$14.3	120.5

96

MISSISSIPPI POWER COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

In the first quarter 2013, AFUDC equity was $26.1 million compared to $11.8 million for the corresponding period in 2012. The increase was primarily due to the construction of the Kemper IGCC.

See Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A and FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information regarding the Kemper IGCC.

Interest Expense, Net of Amounts Capitalized

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$2.6	33.4

In the first quarter 2013, interest expense, net of amounts capitalized was $10.4 million compared to $7.8 million for the corresponding period in 2012. Capitalized interest primarily resulting from AFUDC debt associated with the Kemper IGCC in the first quarter 2013 was $11.1 million compared to $6.5 million for the corresponding period in 2012. The increase was primarily due to a $5.7 million increase in interest expense associated with issuances of new long-term debt in March 2012, August 2012, November 2012, January 2013, and March 2013 and a $3.0 million increase in interest expense resulting from the receipt of a $150 million deposit from SMEPA in March 2012 related to its pending purchase of an undivided interest in the Kemper IGCC. These increases were partially offset by a $4.6 million increase in capitalized interest primarily resulting from AFUDC debt associated with the Kemper IGCC and a $1.5 million decrease in interest expense associated with the redemption of long-term debt in 2012.

See Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A and FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information.

Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(177.5)	N/M

N/M - Not meaningful

In the first quarter 2013, income taxes were $(169.1) million compared to $8.4 million for the corresponding period in 2012. The decrease was due to the reduction in pre-tax earnings (loss) related to the estimated probable loss for the Kemper IGCC.

FUTURE EARNINGS POTENTIAL

The results of operations discussed above are not necessarily indicative of Mississippi Power's future earnings potential. The level of Mississippi Power's future earnings depends on numerous factors that affect the opportunities, challenges, and risks of Mississippi Power's business of selling electricity. These factors include Mississippi Power's ability to maintain a constructive regulatory environment that continues to allow for the timely recovery of prudently-incurred costs during a time of increasing costs and the successful completion of ongoing construction projects, including the Kemper IGCC. Future earnings in the near term will depend, in part, upon maintaining energy sales which is subject to a number of factors. These factors include weather, competition, new energy contracts with neighboring utilities, energy conservation practiced by customers, the price of electricity, the price elasticity of demand, and the rate of economic growth or decline in Mississippi Power's service territory. Changes in regional and global economic conditions may impact sales for Mississippi Power as the pace of the economic recovery remains uncertain. The timing and extent of the economic recovery will impact growth and may impact future earnings. For additional information relating to these issues, see RISK FACTORS in Item 1A and

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MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL of Mississippi Power in Item 7 of the Form 10-K/A.

Environmental Matters

Compliance costs related to federal and state environmental statutes and regulations could affect earnings if such costs cannot continue to be fully recovered in rates on a timely basis. Environmental compliance spending over the next several years may differ materially from the amounts estimated. The timing, specific requirements, and estimated costs could change as environmental statutes and regulations are adopted or modified. Further, higher costs that are recovered through regulated rates could contribute to reduced demand for electricity, which could negatively affect results of operations, cash flows, and financial condition. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Environmental Matters" in Item 8 of the Form 10-K/A for additional information.

Environmental Statutes and Regulations

Air Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Air Quality" of Mississippi Power in Item 7 of the Form 10-K/A for information regarding the EPA's MATS rule. On April 24, 2013, the EPA published a final reconsideration rule addressing new source standards within the MATS rule. Although the EPA had considered revisions to the startup and shutdown provisions of the MATS rule, a final decision on these provisions was deferred. The ultimate impact of this rulemaking will depend on the outcome of any additional rulemaking and/or legal challenges and, therefore, cannot be determined at this time.

Water Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Water Quality" of Mississippi Power in Item 7 of the Form 10-K/A for additional information regarding the EPA's proposed revision of the current steam electric effluent guidelines. On April 19, 2013, the EPA signed a proposed rule which requests comments on a range of potential regulatory options for addressing certain wastestreams from steam electric power plants. These regulations could result in the installation of additional controls at certain of Mississippi Power's facilities, which could result in significant capital expenditures and compliance costs that could affect future unit retirement and replacement decisions. The ultimate impact of these proposed regulations will, however, depend on the specific requirements of the final rule and the outcome of any legal challenges and cannot be determined at this time.

FERC Matters

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "FERC Matters" and "Integrated Coal Gasification Combined Cycle" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "FERC Matters" and "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A and Note (B) to the Condensed Financial Statement under "FERC Matters" herein for additional information.

In 2011, Mississippi Power filed a request with the FERC for an increase in wholesale base revenues under the Municipal and Rural Associations (MRA) cost-based electric tariff. In March 2012, Mississippi Power entered into a settlement agreement with its wholesale customers which provided that base revenues would increase by approximately $22.6 million over a 12-month period with revised rates effective for services rendered beginning April 1, 2012. In March 2012, the FERC approved a motion to place interim rates into effect beginning in May 2012. In September 2012, Mississippi Power, with its wholesale customers, filed a final settlement agreement with the FERC. In November 2012, the settlement judge certified the settlement agreement to the FERC with the recommendation that it be approved. The FERC has not yet approved the settlement agreement.

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On April 1, 2013, Mississippi Power reached a settlement agreement with its wholesale customers and filed a request with the FERC for an additional increase in the MRA cost-based electric tariff. The 2013 settlement agreement provides that base rates under the MRA cost-based electric tariff will increase by approximately $24.2 million over a 12-month period, with revised rates effective for services rendered beginning April 1, 2013. If the 2013 settlement agreement is approved by the FERC, the amount of base rate revenues to be received in 2013 from the agreed upon increase will be approximately $18.0 million.

The ultimate outcome of these matters cannot be determined at this time.

PSC Matters

General

In August 2012, the Mississippi PSC issued an order for the purpose of investigating and reviewing for informational purposes only the ROE formulas used by Mississippi Power and all other regulated electric utilities in Mississippi. On March 14, 2013, the Mississippi Public Utilities Staff (MPUS) filed with the Mississippi PSC its report on the ROE formulas used by Mississippi Power and all other regulated electric utilities in Mississippi. The ultimate outcome of this matter cannot be determined at this time.

Performance Evaluation Plan

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Performance Evaluation Plan" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Performance Evaluation Plan" in Item 8 of the Form 10-K/A for additional information regarding Mississippi Power's base rates.

On January 18, 2013, Mississippi Power filed its annual PEP filing for 2013, which indicated a rate increase of 1.990%, or $15.8 million, annually. On March 4, 2013, Mississippi Power and the MPUS filed a joint stipulation which revised the annual PEP filing for 2013 to reflect the removal of certain costs related to unresolved matters that are currently under review. On March 5, 2013 the revised annual PEP filing for 2013 was approved by the Mississippi PSC, which resulted in a rate increase of 1.925%, or $15.3 million, annually, with the new rates effective March 19, 2013. Mississippi Power may be entitled to $3.3 million in additional revenues in 2013 as a result of the late implementation of the 2013 PEP rate increase.

On March 15, 2013, Mississippi Power submitted its annual PEP lookback filing for 2012, which indicated a refund due to customers of $4.7 million, which was accrued in retail revenues. On May 1, 2013, the MPUS contested the filing.

The ultimate outcome of these matters cannot be determined at this time.

Environmental Compliance Overview Plan

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Environmental Compliance Overview Plan" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Environmental Compliance Overview Plan" in Item 8 of the Form 10-K/A for information on Mississippi Power's annual environmental filing with the Mississippi PSC.

In April 2012, the Mississippi PSC approved Mississippi Power's request for a CPCN to construct a flue gas desulfurization system (scrubber) on Plant Daniel Units 1 and 2. In May 2012, the Sierra Club filed a notice of appeal of the order with the Chancery Court of Harrison County, Mississippi (Chancery Court). These units are jointly owned by Mississippi Power and Gulf Power, with 50% ownership each. The estimated total cost of the project is approximately $660 million, with Mississippi Power's portion being $330 million, excluding AFUDC. The project is scheduled for completion in December 2015. Mississippi Power's portion of the cost is expected to be recovered through the ECO Plan. As of March 31, 2013, total project expenditures were $183.2 million, with Mississippi Power's portion being $91.6 million. The ultimate outcome of this matter cannot be determined at this time.

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Fuel Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Fuel Cost Recovery" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Fuel Cost Recovery" in Item 8 of the Form 10-K/A for information regarding Mississippi Power's fuel cost recovery.

On January 18, 2013, in compliance with Mississippi Power's filing requirement, Mississippi Power requested an annual adjustment of the retail fuel cost recovery factor in an amount equal to a decrease of 4.7%, or $35.5 million, of total 2012 retail revenue. The Mississippi PSC approved the retail fuel cost recovery factor on March 5, 2013, with the new rates effective March 19, 2013.

At March 31, 2013, the amount of over recovered retail fuel costs included on Mississippi Power's Condensed Balance Sheets herein was $60.9 million compared to $56.6 million at December 31, 2012. Mississippi Power also has wholesale MRA and Market Based (MB) fuel cost recovery factors. At March 31, 2013, the amount of over recovered wholesale MRA and MB fuel costs included on Mississippi Power's Condensed Balance Sheets herein was $18.1 million and $1.7 million, respectively, compared to $19.0 million and $2.1 million, respectively, at December 31, 2012. In addition, at each of March 31, 2013 and December 31, 2012, the amount of under recovered MRA emissions allowance cost included on Mississippi Power's Condensed Balance Sheets herein was $0.4 million. Mississippi Power's operating revenues are adjusted for differences in actual recoverable fuel cost and amounts billed in accordance with the currently approved cost recovery rate. Accordingly, changes in the billing factor have no significant effect on Mississippi Power's revenues or net income, but will affect cash flow.

Ad Valorem Tax Adjustment

On March 27, 2013, Mississippi Power filed its annual Ad Valorem Tax Adjustment factor filing for 2013, which requested an annual rate increase of 0.9%, or $7.1 million, due to an increase in ad valorem taxes resulting from the expiration of a tax exemption related to Plant Daniel Units 3 and 4.

The ultimate outcome of this matter cannot be determined at this time.

See RESULTS OF OPERATIONS – "Taxes Other Than Income Taxes" of Mississippi Power in Item 7 of the Form 10-K/A for additional information.

Storm Damage Cost Recovery

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "PSC Matters – Storm Damage Cost Recovery" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Storm Damage Cost Recovery" in Item 8 in the Form 10-K/A for information regarding Mississippi Power's storm damage cost recovery. Mississippi Power maintains a reserve to cover the cost of damage from major storms to its transmission and distribution facilities and generally the cost of uninsured damage to its generation facilities and other property. At March 31, 2013, the balance in the storm reserve was $57.2 million.

Integrated Coal Gasification Combined Cycle

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A for information regarding Mississippi Power's construction of the Kemper IGCC.

Kemper IGCC Project Approval

In 2010, the Mississippi PSC issued a CPCN authorizing the acquisition, construction, and operation of the Kemper IGCC (2010 MPSC Order) located in Kemper County, Mississippi. The Sierra Club filed an appeal of the Mississippi PSC's issuance of the CPCN and, in March 2012, the Mississippi Supreme Court reversed the decision of the Chancery Court upholding the 2010 MPSC Order and remanded the matter to the Mississippi PSC. The

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Mississippi Supreme Court concluded that the 2010 MPSC Order did not cite in sufficient detail substantial evidence upon which the Mississippi Supreme Court could determine the basis for the findings of the Mississippi PSC granting the CPCN. In April 2012, the Mississippi PSC issued a detailed order (2012 MPSC Order) confirming the CPCN for the Kemper IGCC, which the Sierra Club appealed to the Chancery Court. In December 2012, the Chancery Court affirmed the 2012 MPSC Order which confirmed the issuance of the CPCN for the Kemper IGCC. On January 8, 2013, the Sierra Club filed an appeal of the Chancery Court's ruling with the Mississippi Supreme Court.

The Kemper IGCC is currently under construction and will utilize an integrated coal gasification combined cycle technology with an output capacity of 582 MWs. The Kemper IGCC will be fueled by locally mined lignite (an abundant, lower heating value coal) from a mine owned by Mississippi Power and situated adjacent to the Kemper IGCC that is scheduled to begin operations in June 2013. In connection with the Kemper IGCC, Mississippi Power also is constructing and plans to operate approximately 61 miles of CO₂ pipeline infrastructure. The Kemper IGCC and the CO₂ pipeline are scheduled to be placed in-service in May 2014. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle – Lignite Mine and CO₂ Pipeline Facilities" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle – Lignite Mine and CO₂ Pipeline Facilities" in Item 8 of the Form 10-K/A for additional information regarding the lignite mine and the CO₂ pipeline.

The ultimate outcome of the CPCN challenge cannot be determined at this time.

Kemper IGCC Cost Estimate

The certificated cost estimate of the Kemper IGCC included in the 2012 MPSC Order was $2.4 billion, net of $245 million of DOE Grants, the cost of the lignite mine and equipment, the cost of the CO₂ pipeline facilities, and AFUDC related to the Kemper IGCC. The 2012 MPSC Order approved a construction cost cap of up to $2.88 billion, with recovery of prudently-incurred costs subject to approval by the Mississippi PSC. Exceptions to the $2.88 billion cost cap include the cost of the lignite mine and equipment, the cost of the CO₂ pipeline facilities, AFUDC, and certain general exceptions as contemplated in the Settlement Agreement (described below) and the 2012 MPSC Order, which includes change of law, force majeure, and beneficial capital (which exists when Mississippi Power demonstrates that the purpose and effect of the construction cost increase is to produce efficiencies that will result in a neutral or favorable effect on customers, relative to the original proposal for the CPCN) (Cost Cap Exceptions). Recovery of the Cost Cap Exception amounts remains subject to review and approval by the Mississippi PSC.

On April 23, 2013, Mississippi Power revised its cost estimate for the Kemper IGCC to approximately $3.42 billion, net of the DOE Grants and the Cost Cap Exceptions. Estimated amounts of the Cost Cap Exceptions include $245 million for the lignite mine and equipment, $132 million for the CO₂ pipeline facilities, $324 million of AFUDC, and $102 million of other general exceptions. The revised cost estimate reflects additional cost pressures, including labor costs, piping and other material costs, engineering and support costs, and productivity decreases. Mississippi Power does not intend to seek any joint owner contributions or rate recovery for any costs of the Kemper IGCC that exceed the $2.88 billion cost cap, except for amounts subject to the Cost Cap Exceptions. Accordingly, Mississippi Power reflected a pre-tax charge to income for this estimated probable loss of $462.0 million ($285.3 million after tax) in the first quarter 2013. See RESULTS OF OPERATIONS – "Estimated Loss on Kemper IGCC."

Mississippi Power's analysis of the estimated cost to complete the Kemper IGCC will be ongoing throughout the construction period. It is possible that Mississippi Power could experience further cost increases and/or schedule delays with respect to the Kemper IGCC as a result of factors including, but not limited to, costs and productivity of labor, adverse weather conditions, shortages and inconsistent quality of equipment, materials, and labor, contractor or supplier delay or non-performance under construction or other agreements, delays associated with start-up activities, and/or unforeseen engineering problems. In subsequent periods, any changes in the estimated costs to complete construction of the Kemper IGCC subject to the $2.88 billion cost cap will be reflected in Mississippi Power's statements of income and these changes could be material.

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As of March 31, 2013, Mississippi Power had spent a total of $2.88 billion on the Kemper IGCC, excluding the estimated probable loss. These costs include $2.41 billion for the portion of the Kemper IGCC subject to the construction cost cap, $188.9 million for the lignite mine and equipment, $84.4 million for the CO₂ pipeline facilities, $156.4 million of AFUDC, and $43.1 million of other costs, including certain general exceptions and certain regulatory assets. Of this total, $2.29 billion was included in CWIP (which is net of the DOE Grants and an estimated probable loss of $540 million), $43.4 million in other regulatory assets, $3.8 million in other deferred charges and assets on Mississippi Power's Condensed Balance Sheet herein, and $1.0 million was previously expensed. Consistent with the treatment of non-capital costs incurred during the pre-construction period, the Mississippi PSC granted Mississippi Power the authority to defer all non-capital Kemper IGCC-related costs to a regulatory asset during the construction period. This includes deferred costs associated with the generation resource planning, evaluation, and screening activities. The amortization period for the regulatory asset will be determined by the Mississippi PSC at a later date. In addition, Mississippi Power is authorized to accrue carrying costs on the unamortized balance of such regulatory assets at a rate and in a manner to be determined by the Mississippi PSC in future cost recovery mechanism proceedings.

The ultimate outcome of these matters cannot be determined at this time.

Rate Recovery of Kemper IGCC Costs

See "FERC Matters" for additional information regarding Mississippi Power's MRA cost-based tariff relating to recovery of a portion of the Kemper IGCC costs from Mississippi Power's wholesale customers. Rate recovery of the retail portion of the Kemper IGCC is subject to the jurisdiction of the Mississippi PSC. See "Baseload Act" herein for additional information.

On January 24, 2013, Mississippi Power entered into a settlement agreement (Settlement Agreement) with the Mississippi PSC that, among other things, establishes the process for resolving matters regarding cost recovery related to the Kemper IGCC. Under the Settlement Agreement, Mississippi Power agreed to limit the portion of prudently-incurred Kemper IGCC costs to be included in retail rate base to the $2.4 billion certificated cost estimate, plus the Cost Cap Exceptions as well as any other costs permitted or determined to be excluded from the $2.88 billion cost cap by the Mississippi PSC. Mississippi Power intends to finance (1) prudently-incurred costs in excess of the certificated cost estimate and up to the $2.88 billion cost cap, net of the DOE Grants and the Cost Cap Exceptions, (2) the accrued AFUDC, and (3) exceptions not provided for in the Seven-Year Rate Plan (discussed below) through securitization as provided in State of Mississippi legislation. The rate recovery necessary to recover the annual costs of securitization is expected to be filed and become effective after the Kemper IGCC is placed in service and following completion of the Mississippi PSC's final prudence review of costs for the Kemper IGCC.

Under the terms of the Settlement Agreement, Mississippi Power and the Mississippi PSC agreed to follow certain regulatory procedures and schedules for resolving the cost recovery matters related to the Kemper IGCC. These procedures and schedules include the following: (1) Mississippi Power's filing on January 25, 2013 of a new request to increase retail rates in 2013 by $172 million annually, based on projected investment for 2013, to be recorded to a regulatory liability to be used to mitigate rate impacts when the Kemper IGCC is placed in service; (2) the Mississippi PSC's decision on that matter on March 5, 2013 as described below; (3) Mississippi Power's collaboration with the MPUS to file with the Mississippi PSC within three months of the Settlement Agreement a rate recovery plan for the Kemper IGCC for the first seven years of its operation, along with a proposed revenue requirement under such plan for 2014 through 2020 (Seven-Year Rate Plan) (which was made on February 26, 2013 and updated on March 22, 2013 as described below); (4) the Mississippi PSC's decision on the Seven-Year Rate Plan within four months of that filing (which is now expected to occur in the fall of 2013); (5) Mississippi Power's agreement to limit the portion of prudently-incurred Kemper IGCC costs to be included in rate base to the $2.4 billion certificated cost estimate, plus the Cost Cap Exceptions, excluding AFUDC, provided that this limitation will not prevent Mississippi Power from securing alternate financing to recover any prudently-incurred Kemper IGCC costs, including plant costs above the $2.4 billion certificated cost estimate and AFUDC, not otherwise recovered in any Mississippi PSC rate proceeding contemplated by the Settlement Agreement; and (6) the Mississippi PSC's completion of its prudence review of the Kemper IGCC costs incurred through 2012 within six

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months of the Settlement Agreement, an additional prudence review upon considering the Seven-Year Rate Plan for costs incurred through the most recent reporting period, and a final prudence review of the remaining project costs within six months of the Kemper IGCC's in-service date. The Settlement Agreement provides that Mississippi Power may terminate the agreement if certain conditions are not met, if Mississippi Power is unable to secure alternate financing for any prudently-incurred Kemper IGCC costs not otherwise recovered in any Mississippi PSC rate proceeding contemplated by the Settlement Agreement, or if the Mississippi PSC fails to comply with the requirements of the Settlement Agreement. Legislation to authorize a multi-year rate plan and legislation to provide for alternate financing through securitization was enacted into law on February 26, 2013. Mississippi Power is currently working with the Mississippi PSC and the MPUS to implement the procedural schedules set forth in the Settlement Agreement and variations to the schedule are likely.

On March 5, 2013, the Mississippi PSC issued an order (2013 Kemper IGCC Order) approving a 15% increase in retail rates effective on March 19, 2013, and an additional 3% increase in retail rates effective January 1, 2014, which collectively are designed to collect $156 million annually beginning in 2014. All amounts collected through April 2014, which are expected to total $126 million, will be recorded as a regulatory liability to be used to mitigate rate impacts beginning in May 2014 when the Kemper IGCC is expected to be placed in service. On March 21, 2013, a legal challenge to the 2013 Kemper IGCC Order was filed with the Mississippi Supreme Court.

Because the 2013 Kemper IGCC Order did not provide for the inclusion of CWIP in rate base as permitted by the Baseload Act described below, Mississippi Power continues to record AFUDC on the Kemper IGCC during the construction period. Mississippi Power will not record AFUDC on any additional costs of the Kemper IGCC that exceed the $2.88 billion cost cap, except for Cost Cap Exception amounts. Mississippi Power's rate plans filed pursuant to the Settlement Agreement contemplate the continued accrual of AFUDC through the May 2014 expected in-service date.

On March 22, 2013, Mississippi Power, in compliance with the 2013 Kemper IGCC Order, filed a revision to the Seven-Year Rate Plan with the Mississippi PSC for the Kemper IGCC for 2014 through 2020, the first seven years of operation of the Kemper IGCC. The Seven-Year Rate Plan, which contemplates Mississippi Power's sale of a 15% undivided ownership interest in the Kemper IGCC, proposes recovery of an annual revenue requirement of approximately $156 million of Kemper IGCC-related operational costs and rate base amounts, including plant costs equal to the $2.4 billion certificated cost estimate. The 2013 Kemper IGCC Order, which increased rates beginning on March 19, 2013, is integral to the Seven-Year Rate Plan, which contemplates amortization of the April 2014 regulatory liability balance to be used to mitigate rate impacts from the expected in-service date of May 2014 through 2020, based on a fixed amortization schedule that requires approval by the Mississippi PSC. Under the Seven-Year Rate Plan filing, Mississippi Power proposes annual rate recovery to remain the same from 2014 through 2020. While it is the intent of Mississippi Power for the actual revenue requirement to equal the proposed revenue requirement, Mississippi Power proposes that the annual differences through 2020 for certain items contemplated in the Seven-Year Rate Plan will be deferred, subject to accrual of carrying costs, and the cumulative balance will be reviewed at the end of the term of the Settlement Agreement by the Mississippi PSC to determine the disposition of any potential remaining deferred balance.

The revenue requirements set forth in Mississippi Power's Seven-Year Rate Plan described above assume, among other things, the Kemper IGCC will be placed in service in May 2014, the sale of a 15% undivided interest in the Kemper IGCC to SMEPA will be completed as described herein, Mississippi Power's receipt of the benefits relating to tax credits described herein, and recovery of the Cost Cap Exceptions described herein.

The ultimate outcome of these matters, including the determinations of prudency and the specific manner of recovery of costs relating to the Kemper IGCC, is subject to further regulatory actions and cannot be determined at this time.

Proposed Sale of Undivided Interest to SMEPA

In 2010, Mississippi Power and SMEPA entered into an asset purchase agreement whereby SMEPA agreed to purchase a 17.5% undivided interest in the Kemper IGCC. In February 2012, the Mississippi PSC approved the sale

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and transfer of 17.5% of the Kemper IGCC to SMEPA. In June 2012, Mississippi Power and SMEPA signed an amendment to the asset purchase agreement whereby SMEPA extended its option to purchase until December 31, 2012, and reduced its purchase commitment percentage from a 17.5% to a 15% undivided interest in the Kemper IGCC, subject to approval by the Mississippi PSC. On December 31, 2012, Mississippi Power and SMEPA agreed to extend SMEPA's option to purchase through December 31, 2013.

The closing of this transaction is conditioned upon execution of a joint ownership and operating agreement, receipt of all construction permits, appropriate regulatory approvals, financing, and other conditions. In September 2012, SMEPA received a conditional loan commitment from Rural Utilities Service to provide funding for SMEPA's undivided interest in the Kemper IGCC.

In March 2012, Mississippi Power received a $150 million interest-bearing refundable deposit from SMEPA to be applied to the purchase. While the expectation is that the amount will be applied to the purchase price at closing, Mississippi Power would be required to refund the deposit upon the termination of the asset purchase agreement, within 60 days of a request by SMEPA for a full or partial refund, or within 15 days at SMEPA's discretion in the event that Mississippi Power is assigned a senior unsecured credit rating of BBB+ or lower by S&P or Baa1 or lower by Moody's or ceases to be rated by either of these rating agencies. Given the interest-bearing nature of the deposit and SMEPA's ability to request a refund, the deposit has been presented as a current liability in Mississippi Power's Condensed Balance Sheets herein and as financing proceeds in Mississippi Power's Condensed Statements of Cash Flows herein.

The ultimate outcome of these matters cannot be determined at this time.

Baseload Act

In 2008, the Baseload Act was signed by the Governor of Mississippi and is designed to enhance the Mississippi PSC's authority to facilitate development and construction of base load generation in the State of Mississippi. The Baseload Act authorizes, but does not require, the Mississippi PSC to adopt a cost recovery mechanism that includes in retail base rates, prior to and during construction, all or a portion of the prudently-incurred pre-construction and construction costs incurred by a utility in constructing a base load electric generating plant. Prior to the passage of the Baseload Act, such costs would traditionally be recovered only after the plant was placed in service. The Baseload Act also provides for periodic prudence reviews by the Mississippi PSC and prohibits the cancellation of any such generating plant without the approval of the Mississippi PSC. In the event of cancellation of the construction of the plant without approval of the Mississippi PSC, the Baseload Act authorizes the Mississippi PSC to make a public interest determination as to whether and to what extent the utility will be afforded rate recovery for costs incurred in connection with such cancelled generating plant. There are legal challenges to the constitutionality of the Baseload Act currently pending before the Mississippi Supreme Court. The ultimate outcome of the legal challenges to this legislation cannot be determined at this time. See "Rate Recovery of Kemper IGCC Costs" herein for additional information.

Tax Incentives

The IRS has allocated $133 million (Phase I) and $279 million (Phase II) of Internal Revenue Code Section 48A tax credits to Mississippi Power in connection with the Kemper IGCC. Mississippi Power's utilization of Phase I and Phase II credits is dependent upon meeting the IRS certification requirements, including an in-service date no later than May 11, 2014 for the Phase I credits and April 19, 2016 for the Phase II credits. In order to remain eligible for the Phase II credits, Mississippi Power plans to capture and sequester (via enhanced oil recovery) at least 65%of the CO₂ produced by the Kemper IGCC during operations in accordance with the rules for Section 48A investment tax credits. Through March 31, 2013, Mississippi Power had received or accrued tax benefits totaling $412 million for these tax credits, which will be amortized as a reduction to depreciation and amortization over the life of the Kemper IGCC. As a result of bonus tax depreciation on certain assets placed, or to be placed, in service in 2012 and 2013, and the subsequent reduction in federal taxable income, Mississippi Power estimates that it will not be able to utilize $178.8 million of these tax credits until after March 31, 2014. IRS guidelines allow these unused tax credits to be carried forward for 20 years from the date received, if not utilized before then. In October 2012, Mississippi

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Power filed an application with the DOE for certification of the Kemper IGCC for additional tax credits under the Internal Revenue Code Section 48A (Phase III).

A portion of the tax credits realized by Mississippi Power may be subject to recapture upon successful completion of SMEPA's purchase of an undivided interest in the Kemper IGCC as described above. In addition, all or a portion of the tax credits will be subject to recapture if Mississippi Power fails to satisfy the in-service date requirements and CO₂ capture requirements described above.

On January 2, 2013, the American Taxpayer Relief Act of 2012 (ATRA) was signed into law. The ATRA retroactively extended several tax credits through 2013 and 50% bonus depreciation for property to be placed in service in 2013 (and for certain long-term production-period projects to be placed in service in 2014), which is expected to apply to the Kemper IGCC.

The ultimate outcome of these matters cannot be determined at this time.

Other Matters

Mississippi Power is involved in various other matters being litigated and regulatory matters that could affect future earnings. In addition, Mississippi Power is subject to certain claims and legal actions arising in the ordinary course of business. Mississippi Power's business activities are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by CO₂ and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent. The ultimate outcome of such pending or potential litigation against Mississippi Power cannot be predicted at this time; however, for current proceedings not specifically reported in Note (B) to the Condensed Financial Statements herein or in Note 3 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on Mississippi Power's financial statements.

See the Notes to the Condensed Financial Statements herein for a discussion of various other contingencies, regulatory matters, and other matters being litigated which may affect future earnings potential.

ACCOUNTING POLICIES

Application of Critical Accounting Policies and Estimates

Mississippi Power prepares its financial statements in accordance with GAAP. Significant accounting policies are described in Note 1 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A. In the application of these policies, certain estimates are made that may have a material impact on Mississippi Power's results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements. See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES – "Application of Critical Accounting Policies and Estimates" of Mississippi Power in Item 7 of the Form 10-K/A for a complete discussion of Mississippi Power's critical accounting policies and estimates related to Electric Utility Regulation, Contingent Obligations, Unbilled Revenues, Pension and Other Postretirement Benefits, and AFUDC.

Estimated Construction Costs for the Kemper IGCC

Subsequent to the filing of Mississippi Power's Annual Report on Form 10-K for the year ended December 31, 2012, Mississippi Power revised its cost estimate to complete construction of the Kemper IGCC to an amount that exceeds the $2.88 billion cost cap, net of the DOE Grants and the Cost Cap Exceptions. Mississippi Power does not intend to seek any joint owner contributions or rate recovery for any Kemper IGCC construction costs that exceed

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the $2.88 billion cost cap, except for amounts subject to the Cost Cap Exceptions and net of the DOE Grants. As a result, Mississippi Power recorded a pretax charge of $78 million and $462 million in 2012 and the first quarter 2013, respectively. In subsequent periods, any changes in the estimated costs to complete construction of the Kemper IGCC subject to the $2.88 billion cost cap will be reflected in Mississippi Power's statements of income and these changes could be material. Mississippi Power's analysis will be ongoing throughout the construction period. It is possible that Mississippi Power could experience further cost increases and/or schedule delays with respect to the Kemper IGCC as a result of factors including, but not limited to, costs and productivity of labor, adverse weather conditions, shortages and inconsistent quality of equipment, materials, and labor, contractor or supplier delay or non-performance under construction or other agreements, delays associated with start-up activities, and/or unforeseen engineering problems. Given the significant judgment involved in estimating the future costs to complete construction, schedule, and the ultimate rate recoverability for the Kemper IGCC, schedule, and ultimate recoverability for the Kemper IGCC, and the potential impact on Mississippi Power's results of operations, Mississippi Power considers the future total construction costs for the Kemper IGCC to be a critical accounting estimate. See FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" of Mississippi Power in Item 7 and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A and FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for additional information.

FINANCIAL CONDITION AND LIQUIDITY

Overview

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Overview" of Mississippi Power in Item 7 of the Form 10-K/A for additional information. Mississippi Power's financial condition remained stable at March 31, 2013. Mississippi Power intends to continue to monitor its access to short-term and long-term capital markets as well as its bank credit arrangements to meet future capital and liquidity needs. See "Sources of Capital," "Financing Activities," and "Capital Requirements and Contractual Obligations" herein for additional information.

Net cash used for operating activities totaled $25.2 million for the first three months of 2013, a decrease of $25.8 million as compared to the corresponding period in 2012. The decrease in cash provided from operating activities is primarily due to a decrease in investment tax credits related to the Kemper IGCC, a decrease in accounts receivable, a decrease in accrued taxes, and a decrease in regulatory clause revenues due to an increase in fuel costs, partially offset by an increase in fossil fuel stock and an increase due to hedges settled in 2012. Net cash used for investing activities totaled $352.4 million for the first three months of 2013 primarily due to gross property additions related to the Kemper IGCC. Net cash provided from financing activities totaled $420.3 million for the first three months of 2013 primarily due to the issuances of bank notes and capital contributions from Southern Company. Fluctuations in cash flow from financing activities vary year to year based on capital needs and the maturity or redemption of securities.

Significant balance sheet changes for the first three months of 2013 include a decrease in total property, plant, and equipment of $84.5 million, a decrease in accumulated deferred income taxes of $164.3 million, and a decrease in total common stockholder's equity of $189.0 million primarily due to the estimated probable loss on the Kemper IGCC. The decrease in retained earnings was partially offset by an increase in paid-in capital of $101.3 million primarily due to $100.0 million of capital contributions from Southern Company. Securities due within one year and long-term debt increased $370.4 million primarily due to the issuance of $350.0 million of bank notes and $15.8 million of revenue bonds. Prepaid income taxes and accumulated deferred investment tax credits increased $44.0 million and $50.1 million, respectively, primarily due to the Kemper IGCC investment tax credit. Other accrued taxes decreased $47.4 million primarily due to the payment of ad valorem taxes.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Capital Requirements and Contractual Obligations

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY –"Capital Requirements and Contractual Obligations" of Mississippi Power in Item 7 of the Form 10-K/A for a description of Mississippi Power's capital requirements for its construction program, including estimated capital expenditures for new generating resources and to comply with existing environmental statutes and regulations, scheduled maturities of long-term debt, as well as related interest, leases, purchase commitments, derivative obligations, preferred stock dividends, trust funding requirements, and unrecognized tax benefits. See FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations" herein for additional information. Approximately $342.3 million will be required through March 31, 2014 to fund maturities of long-term debt.

See FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for information on the construction of the Kemper IGCC. The construction program of Mississippi Power is currently estimated to include a base level investment of $1.2 billion, $638 million, and $255 million for 2013, 2014, and 2015, respectively. Included in these estimated amounts are expenditures related to construction of the Kemper IGCC of $913 million and $358 million in 2013 and 2014, respectively, which are net of SMEPA's 15% proposed ownership share of the Kemper IGCC, which reflects costs of approximately $492 million and $28 million in 2013 and 2014, respectively. The estimated share for SMEPA in 2013 reflects estimated construction costs relating to SMEPA's proposed ownership interest to be incurred through December 31, 2013 (including construction costs for all prior years relating to its proposed ownership interest).

The construction program is subject to periodic review and revision, and actual construction costs may vary from these estimates because of numerous factors. These factors include: changes in business conditions; changes in load projections; storm impacts; changes in environmental statutes and regulations; the outcome of any legal challenges to environmental rules; changes in generating plants, including unit retirements and replacements and adding or changing fuel sources at existing units, to meet regulatory requirements; changes in FERC rules and regulations; Mississippi PSC approvals; changes in the expected environment compliance programs; changes in legislation; the cost and efficiency of construction labor, equipment, and materials; project scope and design changes; and the cost of capital. See FUTURE EARNINGS POTENTIAL – "Integrated Coal Gasification Combined Cycle – Kemper IGCC Cost Estimate" and Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle – Kemper IGCC Cost Estimate" herein for a discussion of factors that may impact the projected cost and/or schedule of the Kemper IGCC. In addition, there can be no assurance that costs related to capital expenditures will be fully recovered.

Sources of Capital

Except as described herein, Mississippi Power plans to obtain the funds required for construction and other purposes from sources similar to those used in the past, which were primarily funds from operating cash flows, security issuances, term loans, short-term debt, and equity contributions from Southern Company. However, the amount, type, and timing of any future financings, if needed, will depend upon regulatory approval, prevailing market conditions, and other factors. In January 2013, Mississippi Power received $100 million in capital contributions from Southern Company. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" of Mississippi Power in Item 7 of the Form 10-K/A for additional information.

Mississippi Power has received $245.3 million in DOE CCPI2 grant funds that have been used for the construction of the Kemper IGCC. An additional $25 million in CCPI2 grant funds is expected to be received for the initial operation of the Kemper IGCC. See Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for information regarding legislation related to the securitization of certain costs of the Kemper IGCC.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Mississippi Power's current liabilities frequently exceed current assets because of the continued use of short-term obligations as a funding source to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate significantly due to the seasonality of the business.

At March 31, 2013, Mississippi Power had approximately $187.8 million of cash and cash equivalents. Committed credit arrangements with banks at March 31, 2013 were as follows: 

Expires(a)										Executable Term Loans				Due Within One Year
2013		2014		2016		Total		Unused		One     Year		Two     Years		Term     Out		No Term Out
(in millions)						(in millions)				(in millions)				(in millions)
$	110	$	25	$	165	$	300	$	300	$	25	$	40	$	65	$	70

(a)No credit arrangements expire in 2015.

See Note 6 to the financial statements of Mississippi Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K/A and Note (E) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

These credit arrangements provide liquidity support to Mississippi Power's commercial paper borrowings and variable rate pollution control revenue bonds. The amount of variable rate pollution control revenue bonds outstanding requiring liquidity support as of March 31, 2013 was approximately $40 million.

In March 2013, Mississippi Power amended certain of its credit arrangements, which extended the maturity dates from 2014 to 2016 and revised the definition of debt to exclude securitized debt relating to the Kemper IGCC for purposes of calculating the debt covenant under these credit arrangements. See Note (B) to the Condensed Financial Statements under "Integrated Coal Gasification Combined Cycle" herein for information regarding legislation related to the securitization of certain costs of the Kemper IGCC.

Most of these arrangements contain covenants that limit debt levels and typically contain cross default provisions that are restricted only to the indebtedness of Mississippi Power. Mississippi Power is currently in compliance with all such covenants. Mississippi Power expects to renew its credit arrangements, as needed, prior to expiration.

Mississippi Power may also meet short-term cash needs through a Southern Company subsidiary organized to issue and sell commercial paper at the request and for the benefit of Mississippi Power and the other traditional operating companies. Proceeds from such issuances for the benefit of Mississippi Power are loaned directly to Mississippi Power. The obligations of each company under these arrangements are several and there is no cross affiliate credit support.

Details of short-term borrowings were as follows: 

	Short-term Debt at March 31, 2013				Short-term Debt During the Period(a)
	Amount Outstanding		Weighted Average Interest Rate		Average Outstanding		Weighted Average Interest Rate		Maximum Amount Outstanding
	(in millions)				(in millions)				(in millions)
Commercial paper	$	—	—	%	$	15	0.2	%	$	139

(a) Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2013.

Management believes that the need for working capital can be adequately met by utilizing commercial paper, lines of credit, and cash.

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FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Credit Rating Risk

Mississippi Power does not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change to below BBB- and/or Baa3. These contracts are for physical electricity sales, fuel purchases, fuel transportation and storage, emissions allowances, and energy price risk management. At March 31, 2013, the maximum potential collateral requirements under these contracts at a rating below BBB- and/or Baa3 were approximately $268 million. Included in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participant has a credit rating change to below investment grade. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash.

In March 2012, Mississippi Power received a $150 million interest-bearing refundable deposit from SMEPA to be applied to the sale price for the pending sale of an undivided interest in the Kemper IGCC. Until the acquisition is closed, the deposit bears interest at Mississippi Power's AFUDC rate adjusted for income taxes, which was 9.967% per annum for 2012 and 9.962% per annum at March 31, 2013, and is refundable to SMEPA upon termination of the asset purchase agreement related to such purchase, within 60 days of a request by SMEPA for a full or partial refund, or within 15 days at SMEPA's discretion in the event that Mississippi Power is assigned a senior unsecured credit rating of BBB+ or lower by S&P or Baa1 or lower by Moody's or ceases to be rated by either of these rating agencies.

Market Price Risk

Mississippi Power's market risk exposure relative to interest rate changes for the first quarter 2013 has not changed materially compared with the December 31, 2012 reporting period. Since a significant portion of outstanding indebtedness is at fixed rates, Mississippi Power is not aware of any facts or circumstances that would significantly affect exposures on existing indebtedness in the near term. However, the impact on future financing costs cannot now be determined.

Due to cost-based rate regulation and other various cost recovery mechanisms, Mississippi Power continues to have limited exposure to market volatility in interest rates, foreign currency exchange rates, commodity fuel prices, and prices of electricity. To mitigate residual risks relative to movements in electricity prices, Mississippi Power enters into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market. Mississippi Power continues to manage retail fuel-hedging programs implemented per the guidelines of the Mississippi PSC and wholesale fuel-hedging programs under agreements with wholesale customers. As a result, Mississippi Power had no material change in market risk exposure for the first quarter 2013 when compared with the December 31, 2012 reporting period.

The changes in fair value of energy-related derivative contracts, substantially all of which are composed of regulatory hedges, for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Contracts outstanding at the beginning of the period, assets (liabilities), net	$	(17	)
Contracts realized or settled	4
Current period changes(a)	8
Contracts outstanding at the end of the period, assets (liabilities), net	$	(5	)

(a)Current period changes also include the changes in fair value of new contracts entered into during the period, if any.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The changes in the fair value positions of the energy-related derivative contracts, which are substantially all attributable to both the volume and the price of natural gas, for the three ended March 31, 2013 were as follows: 

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Natural gas swaps	$	12
Natural gas options	—
Total changes	$	12

The net hedge volumes of energy-related derivative contracts were as follows:

	March 31, 2013	December 31, 2012
	mmBtu Volume
	(in millions)
Commodity – Natural gas swaps	36	38
Commodity – Natural gas options	—	—
Total hedge volume	36	38

The weighted average swap contract cost above market prices was approximately $0.13 per mmBtu as of March 31, 2013 and $0.44 per mmBtu as of December 31, 2012. The change in option fair value is primarily attributable to the volatility of the market and the underlying change in the natural gas price. The costs associated with natural gas hedges are recovered through Mississippi Power's energy cost management clauses (ECM).

At March 31, 2013 and December 31, 2012, substantially all of Mississippi Power's energy-related derivative contracts were designated as regulatory hedges and are related to Mississippi Power's fuel-hedging program. Therefore, gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as they are recovered through the ECM.

Unrealized pre-tax gains and losses recognized in income for the three months ended March 31, 2013 and 2012 for energy-related derivative contracts that are not hedges were not material.

Mississippi Power uses over-the-counter contracts that are not exchange traded but are fair valued using prices which are market observable, and thus fall into Level 2. See Note (C) to the Condensed Financial Statements herein for further discussion on fair value measurements. The maturities of the energy-related derivative contracts, which are all Level 2 of the fair value hierarchy, at March 31, 2013 were as follows:

				March 31, 2013 Fair Value Measurements
	Total			Maturity
	Fair Value			Year 1			Years 2&3			Years 4&5
	(in millions)
Level 1	$	—		$	—		$	—		$	—
Level 2	(5		)	(3		)	(2		)	—
Level 3	—			—			—			—
Fair value of contracts outstanding at end of period	$	(5	)	$	(3	)	$	(2	)	$	—

For additional information, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" of Mississippi Power in Item 7 and Note 1 under "Financial Instruments"

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FINANCIAL CONDITION AND RESULTS OF OPERATIONS

and Note 10 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A and Note (H) to the Condensed Financial Statements herein.

Financing Activities

In November 2012, Mississippi Power entered into a 366-day $100 million aggregate principal amount floating rate bank loan bearing interest based on one-month LIBOR. The first advance in the amount of $50 million was made in November 2012. In January 2013, the second advance in the amount of $50 million was made. The proceeds of the loan were used for working capital and for other general corporate purposes, including Mississippi Power's continuous construction program.

In March 2013, Mississippi Power entered into four two-year floating rate bank loans bearing interest based on one-month LIBOR. These term loans were for $50 million, $75 million, $75 million, and $100 million aggregate principal amounts, and proceeds were used for working capital and other general corporate purposes, including Mississippi Power's continuous construction program.

In March 2013, the Mississippi Business Finance Corporation (MBFC) issued $15.8 million aggregate principal amount of MBFC Taxable Revenue Bonds (Mississippi Power Company Project), Series 2012A. The proceeds were used to reimburse Mississippi Power for the cost of the acquisition, construction, equipping, installation, and improvement of certain equipment and facilities for the lignite mining facility related to the Kemper IGCC. Any future issuances of the Series 2012A bonds will be used for this same purpose. See Note 6 to the financial statements of Mississippi Power under "Other Revenue Bonds" in Item 8 of the Form 10-K/A for additional information.

In addition to any financings that may be necessary to meet capital requirements and contractual obligations, Mississippi Power plans to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

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SOUTHERN POWER COMPANY

AND SUBSIDIARY COMPANIES

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SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Operating Revenues:
Wholesale revenues, non-affiliates	$	223,429		$	140,557
Wholesale revenues, affiliates	78,191			111,788
Other revenues	1,327			1,336
Total operating revenues	302,947			253,681
Operating Expenses:
Fuel	119,372			89,078
Purchased power, non-affiliates	14,573			20,650
Purchased power, affiliates	7,865			2,340
Other operations and maintenance	50,950			48,389
Depreciation and amortization	40,160			31,913
Taxes other than income taxes	5,354			4,968
Total operating expenses	238,274			197,338
Operating Income	64,673			56,343
Other Income and (Expense):
Interest expense, net of amounts capitalized	(20,394		)	(13,642		)
Other income (expense), net	(257		)	30
Total other income and (expense)	(20,651		)	(13,612		)
Earnings Before Income Taxes	44,022			42,731
Income taxes	14,830			13,415
Net Income	$	29,192		$	29,316

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	For the Three Months Ended March 31,
	2013		2012
	(in thousands)
Net Income	$	29,192	$	29,316
Other comprehensive income (loss):
Qualifying hedges:
Changes in fair value, net of tax of $- and $(173), respectively	—		(274		)
Reclassification adjustment for amounts included in net income, net of tax of $1,045 and $956, respectively	1,634		1,510
Total other comprehensive income (loss)	1,634		1,236
Comprehensive Income	$	30,826	$	30,552

The accompanying notes as they relate to Southern Power are an integral part of these condensed financial statements.

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SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	For the Three Months Ended March 31,
	2013			2012
	(in thousands)
Operating Activities:
Net income	$	29,192		$	29,316
Adjustments to reconcile net income to net cash provided from operating activities —
Depreciation and amortization, total	42,790			34,887
Deferred income taxes	13,587			9,917
Investment tax credits	(493		)	(3,900		)
Deferred revenues	(20,432		)	(16,686		)
Mark-to-market adjustments	(2,746		)	6,467
Other, net	2,979			1,326
Changes in certain current assets and liabilities —
-Receivables	11,743			12,400
-Fossil fuel stock	1,840			(755		)
-Materials and supplies	(1,546		)	(1,167		)
-Prepaid income taxes	1,600			(5,105		)
-Other current assets	1,324			(2,083		)
-Accounts payable	(6,933		)	(14,590		)
-Accrued taxes	4,155			4,375
-Accrued interest	(10,841		)	(10,172		)
-Other current liabilities	(314		)	(2		)
Net cash provided from operating activities	65,905			44,228
Investing Activities:
Property additions	(58,553		)	(32,450		)
Change in construction payables	3,704			(999		)
Payments pursuant to long-term service agreements	(11,741		)	(11,415		)
Other investing activities	(224		)	(2,848		)
Net cash used for investing activities	(66,814		)	(47,712		)
Financing Activities:
Increase in notes payable, net	76,985			20,165
Proceeds —
Capital contributions	1,033			1,219
Other long-term debt	1,717			—
Repayments — Other long-term debt	(220		)	(150		)
Payment of common stock dividends	(32,280		)	(31,750		)
Other financing activities	678			25
Net cash provided from (used for) financing activities	47,913			(10,491		)
Net Change in Cash and Cash Equivalents	47,004			(13,975		)
Cash and Cash Equivalents at Beginning of Period	28,592			16,943
Cash and Cash Equivalents at End of Period	$	75,596		$	2,968
Supplemental Cash Flow Information:
Cash paid (received) during the period for —
Interest (net of $- and $6,556 capitalized for 2013 and 2012, respectively)	$	28,120		$	20,966
Income taxes, net	(179		)	10,820
Noncash transactions — accrued property additions at end of period	8,907			31,591

The accompanying notes as they relate to Southern Power are an integral part of these condensed financial statements.

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SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

Assets	At March 31, 2013		At December 31, 2012
	(in thousands)
Current Assets:
Cash and cash equivalents	$	75,596	$	28,592
Receivables —
Customer accounts receivable	64,391		62,857
Other accounts receivable	2,164		3,135
Affiliated companies	26,252		38,269
Fossil fuel stock, at average cost	19,776		21,616
Materials and supplies, at average cost	49,943		46,370
Prepaid service agreements—current	104,424		80,629
Prepaid income taxes	11,696		4,498
Other prepaid expenses	4,318		5,637
Assets from risk management activities	2,916		375
Total current assets	361,476		291,978
Property, Plant, and Equipment:
In service	4,032,559		4,059,839
Less accumulated provision for depreciation	808,958		786,620
Plant in service, net of depreciation	3,223,601		3,273,219
Construction work in progress	80,502		24,835
Total property, plant, and equipment	3,304,103		3,298,054
Other Property and Investments:
Goodwill	1,839		1,839
Other intangible assets, net of amortization of $3,759 and $3,141 at   March 31, 2013 and December 31, 2012, respectively	45,360		45,979
Total other property and investments	47,199		47,818
Deferred Charges and Other Assets:
Prepaid long-term service agreements	96,121		100,921
Other deferred charges and assets — affiliated	6,692		3,468
Other deferred charges and assets — non-affiliated	42,675		37,688
Total deferred charges and other assets	145,488		142,077
Total Assets	$	3,858,266	$	3,779,927

The accompanying notes as they relate to Southern Power are an integral part of these condensed financial statements.

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SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

Liabilities and Stockholder's Equity	At March 31, 2013		At December 31, 2012
	(in thousands)
Current Liabilities:
Securities due within one year	$	98	$	259
Notes payable — non-affiliated	147,953		70,968
Accounts payable —
Affiliated	66,864		65,832
Other	22,197		26,204
Accrued taxes —
Accrued income taxes	1,224		87
Other accrued taxes	6,915		3,031
Accrued interest	11,433		22,259
Liabilities from risk management activities	590		669
Other current liabilities	7,734		8,263
Total current liabilities	265,008		197,572
Long-term Debt	1,307,762		1,306,099
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	564,301		550,685
Investment tax credits	174,471		167,130
Deferred capacity revenues — affiliated	6,835		19,514
Other deferred credits and liabilities — affiliated	2,384		2,638
Other deferred credits and liabilities — non-affiliated	5,880		5,863
Total deferred credits and other liabilities	753,871		745,830
Total Liabilities	2,326,641		2,249,501
Redeemable Noncontrolling Interest	9,689		8,069
Common Stockholder's Equity:
Common stock, par value $.01 per share —
Authorized — 1,000,000 shares
Outstanding — 1,000 shares	—		—
Paid-in capital	1,028,581		1,027,548
Retained earnings	492,497		495,585
Accumulated other comprehensive income (loss)	858		(776		)
Total common stockholder's equity	1,521,936		1,522,357
Total Liabilities and Stockholder's Equity	$	3,858,266	$	3,779,927

The accompanying notes as they relate to Southern Power are an integral part of these condensed financial statements.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FIRST QUARTER 2013 vs. FIRST QUARTER 2012

OVERVIEW

Southern Power and its subsidiaries construct, acquire, own, and manage generation assets, including renewable energy projects, and sell electricity at market-based rates in the wholesale market. Southern Power continues to execute its strategy through a combination of acquiring and constructing new power plants and by entering into PPAs primarily with investor owned utilities, independent power producers, municipalities, and electric cooperatives. In accordance with this overall growth strategy, on April 23, 2013 Southern Power and Turner Renewable Energy, LLC (TRE), through Southern Turner Renewable Energy, LLC (STR), a jointly-owned subsidiary owned 90% by Southern Power, acquired all of the outstanding membership interests of Campo Verde Solar, LLC (Campo Verde). Campo Verde is constructing a 139-MW solar facility in Southern California that is expected to begin commercial operation in the fourth quarter 2013. The output of the plant is contracted under a 20-year PPA with San Diego Gas & Electric Company, a subsidiary of Sempra Energy. In general, Southern Power has constructed or acquired new generating capacity only after entering into long-term capacity contracts for the new facilities. See Note (I) to the Condensed Financial Statements herein for additional information.

To evaluate operating results and to ensure Southern Power's ability to meet its contractual commitments to customers, Southern Power focuses on several key performance indicators. These indicators include peak season equivalent forced outage rate (Peak Season EFOR), contract availability, and net income. Peak Season EFOR defines the hours during peak demand times when Southern Power's generating units are not available due to forced outages (the lower the better). Contract availability measures the percentage of scheduled hours delivered. Net income is the primary measure of Southern Power's financial performance.

RESULTS OF OPERATIONS

Net Income

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(0.1)	(0.4)

Southern Power's net income for the first quarter 2013 was $29.2 million compared to $29.3 million for the corresponding period in 2012. The decrease was primarily due to increases in depreciation, interest expense, other operations and maintenance expenses, and income taxes, partially offset by an increase in capacity revenues due to an increase in total MWs of capacity under long-term contracts, primarily related to the Plant Nacogdoches contract which began in June 2012.

Wholesale Revenues–Non-Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$82.8	59.0

Wholesale revenues from sales to non-affiliates will vary depending on the energy demand of those customers and their generation capacity, as well as the market prices of wholesale energy compared to the cost of Southern Power's energy. Increases and decreases in revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income.

Wholesale revenues from non-affiliates for the first quarter 2013 were $223.4 million compared to $140.6 million for the corresponding period in 2012. The increase was primarily due to a $61.4 million increase in energy sales, reflecting a 33.4% increase in the average price of energy and a 51.9% increase in KWH sales. The increase in

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revenue was also due to a $21.4 million increase in capacity revenue primarily due to an increase in the total MWs of capacity under contract with non-affiliates.

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Power Sales Agreements" of Southern Power in Item 7 of the Form 10-K for additional information.

Wholesale Revenues–Affiliates

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$(33.6)	(30.1)

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. Sales to affiliate companies that are not covered by PPAs are made in accordance with the IIC, as approved by the FERC.

Wholesale revenues from affiliates for the first quarter 2013 were $78.2 million compared to $111.8 million for the corresponding period in 2012. The decrease was primarily the result of a $31.6 million decrease in energy sales under the IIC, reflecting a 54.6% decrease in KWH sales, partially offset by a 24.6% increase in the average price of energy.

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Power Sales Agreements" of Southern Power in Item 7 of the Form 10-K for additional information.

Fuel and Purchased Power Expenses

	First Quarter 2013 vs. First Quarter 2012
	(change in millions)	(% change)
Fuel	$30.3	34.0
Purchased power – non-affiliates	(6.1)	(29.4)
Purchased power – affiliates	5.5	236.1
Total fuel and purchased power expenses	$29.7

Southern Power PPAs generally provide that the purchasers are responsible for substantially all of the cost of fuel. Consequently, any increase or decrease in fuel costs is generally accompanied by an increase or decrease in related fuel revenues and does not have a significant impact on net income. Southern Power is responsible for the cost of fuel for generating units that are not covered under PPAs. Power from these generating units is sold into the market or sold to affiliates under the IIC.

Purchased power expenses will vary depending on demand and the availability and cost of generating resources throughout the Southern Company system and other contract resources. Load requirements are submitted to the Power Pool on an hourly basis and are fulfilled with the lowest cost alternative, whether that is generation owned by Southern Power, affiliate-owned generation, or external purchases.

In the first quarter 2013, total fuel and purchased power expenses were $141.8 million compared to $112.1 million for the corresponding period in 2012. Fuel and purchased power expenses increased $33.0 million due to a 33.3% increase in the average cost of fuel and a 17.8% increase in the average cost of purchased power. The increase was partially offset by a $3.2 million decrease associated with a 1.8% net decrease in the volume of KWHs generated and purchased.

In the first quarter 2013, fuel expense was $119.4 million compared to $89.1 million for the corresponding period in 2012. The increase was due to a $29.6 million increase associated with the average cost of fuel per KWH generated and a $0.7 million increase associated with the volume of KWHs generated.

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In the first quarter 2013, purchased power expense was $22.4 million compared to $23.0 million for the corresponding period in 2012. The decrease was due to a $3.9 million decrease associated with the volume of KWHs purchased, partially offset by a $3.4 million increase associated with the cost of purchased power.

Other Operations and Maintenance Expenses

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$2.6	5.3

In the first quarter 2013, other operations and maintenance expenses were $51.0 million compared to $48.4 million for the corresponding period in 2012. The increase was primarily due to operating costs associated with Plant Nacogdoches placed in service in June 2012, Plant Apex placed in service in July 2012, Plant Granville placed in service in October 2012, and Plant Cleveland placed in service in December 2012.

Depreciation and Amortization

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$8.3	25.8

In the first quarter 2013, depreciation and amortization was $40.2 million compared to $31.9 million for the corresponding period in 2012. The increase was primarily due to an increase in plant in service, including the additions of Plants Nacogdoches, Apex, Granville, and Cleveland.

Interest Expense, Net of Amounts Capitalized

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$6.8	49.5

In the first quarter 2013, interest expense, net of amounts capitalized was $20.4 million compared to $13.6 million for the corresponding period in 2012. The increase was primarily due to a decrease in capitalized interest resulting from the completion of Plants Nacogdoches and Cleveland in June 2012 and December 2012, respectively.

Income Taxes

First Quarter 2013 vs. First Quarter 2012
(change in millions)	(% change)
$1.4	10.5

In the first quarter 2013, income taxes were $14.8 million compared to $13.4 million for the corresponding period in 2012. The increase was primarily due to a $2.2 million benefit received in 2012 related to prior year tax adjustments and a $0.6 million increase associated with higher pre-tax earnings, partially offset by a $1.7 million decrease related to an increase in the amount of tax benefit recognized from investment tax credits (ITCs) compared to the first quarter 2012.

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FUTURE EARNINGS POTENTIAL

The results of operations discussed above are not necessarily indicative of Southern Power's future earnings potential. The level of Southern Power's future earnings depends on numerous factors that affect the opportunities, challenges, and risks of Southern Power's competitive wholesale business. These factors include: Southern Power's ability to achieve sales growth while containing costs; regulatory matters; creditworthiness of customers; total generating capacity available in Southern Power's target market areas; the successful remarketing of capacity as current contracts expire; and Southern Power's ability to execute its acquisition strategy and to construct generating facilities. Other factors that could influence future earnings include weather, demand, generation patterns, and operational limitations. For additional information relating to these issues, see RISK FACTORS in Item 1A and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL of Southern Power in Item 7 of the Form 10-K.

Environmental Matters

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters" of Southern Power in Item 7 of the Form 10-K for information on the development by federal and state environmental regulatory agencies of additional control strategies for emissions of air pollution from industrial sources, including electric generating facilities. Compliance with possible additional federal or state legislation or regulations related to global climate change, air quality, or other environmental and health concerns could also significantly affect Southern Power. While Southern Power's PPAs generally contain provisions that permit charging the counterparty with some of the new costs incurred as a result of changes in environmental laws and regulations, the full impact of any such regulatory or legislative changes cannot be determined at this time.

Water Quality

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Environmental Matters – Environmental Statutes and Regulations – Water Quality" of Southern Power in Item 7 of the Form 10-K for additional information regarding the EPA's proposed revision of the current steam electric effluent guidelines. On April 19, 2013, the EPA signed a proposed rule which requests comments on a range of potential regulatory options for addressing certain wastestreams from steam electric power plants. These regulations could result in the installation of additional controls at certain of Southern Power's facilities, which could result in capital expenditures and compliance costs. The ultimate impact of these proposed regulations will, however, depend on the specific requirements of the final rule and the outcome of any legal challenges and cannot be determined at this time.

Income Tax Matters

Investment Tax Credits

In 2009, President Obama signed into law the American Recovery and Reinvestment Act of 2009 (ARRA). Major tax incentives in the ARRA included renewable energy incentives. Southern Power has recognized ITCs under the renewable energy incentives related to Plants Nacogdoches, Cimarron, Apex, Granville, and Spectrum, which have had a material impact on cash flows and net income. On January 2, 2013, the American Taxpayer Relief Act of 2012 (ATRA) was signed into law. The ATRA retroactively extended several renewable energy incentives through 2013, including extending ITCs for biomass projects which begin construction before January 1, 2014.

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Acquisitions

Campo Verde Solar, LLC Acquisition

On April 23, 2013, Southern Power and TRE, through STR, acquired all of the outstanding membership interests of Campo Verde from First Solar, Inc., the developer of the project. Campo Verde is constructing a 139-MW solar photovoltaic facility in Southern California. The solar facility is expected to begin commercial operation in the fourth quarter 2013. The output of the plant is contracted under a 20-year PPA with San Diego Gas & Electric Company, a subsidiary of Sempra Energy, that is expected to begin in the fourth quarter 2013. See Note (I) to the Condensed Financial Statements herein for additional information.

Construction Projects

Spectrum Nevada Solar, LLC Acquisition

In September 2012, Southern Power and TRE, through STR, acquired all of the outstanding membership interests of Spectrum Nevada Solar, LLC (Spectrum) from Sun Edison, LLC, the original developer of the project. Spectrum is constructing a 30-MW solar photovoltaic facility in North Las Vegas, Nevada. The solar facility is expected to begin commercial operation in mid-2013. Construction costs incurred through March 31, 2013 were $62.8 million. The total estimated cost of the project is expected to be approximately $118.0 million.

Power Sales Agreements

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Power Sales Agreements" of Southern Power in Item 7 of the Form 10-K for additional information regarding Southern Power's PPAs with investor-owned utilities, independent power purchasers, municipalities, and electric cooperatives.

On April 23, 2013, a subsidiary of Southern Power assumed a PPA with San Diego Gas & Electric Company in connection with the acquisition of Campo Verde. The solar facility is expected to begin commercial operation in the fourth quarter 2013.

Other Matters

Southern Power is involved in various other matters being litigated and regulatory matters that could affect future earnings. In addition, Southern Power is subject to certain claims and legal actions arising in the ordinary course of business. Southern Power's business activities are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide and other emissions and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent.

The ultimate outcome of such pending or potential litigation against Southern Power and its subsidiaries cannot be predicted at this time; however, for current proceedings not specifically reported in Note (B) to the Condensed Financial Statements herein or in Note 3 to the financial statements of Southern Power in Item 8 of the Form 10-K, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on Southern Power's financial statements.

See the Notes to the Condensed Financial Statements herein for a discussion of various other contingencies and other matters being litigated which may affect future earnings potential.

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ACCOUNTING POLICIES

Application of Critical Accounting Policies and Estimates

Southern Power prepares its consolidated financial statements in accordance with GAAP. Significant accounting policies are described in Note 1 to the financial statements of Southern Power in Item 8 of the Form 10-K. In the application of these policies, certain estimates are made that may have a material impact on Southern Power's results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements. See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES – "Application of Critical Accounting Policies and Estimates" of Southern Power in Item 7 of the Form 10-K for a complete discussion of Southern Power's critical accounting policies and estimates related to Revenue Recognition, Impairment of Long Lived Assets and Intangibles, Acquisition Accounting, Contingent Obligations, Depreciation, and Investment Tax Credits.

FINANCIAL CONDITION AND LIQUIDITY

Overview

Southern Power's financial condition remained stable at March 31, 2013. Southern Power intends to continue to monitor its access to short-term and long-term capital markets as well as its bank credit arrangements as needed to meet future capital and liquidity needs. See "Sources of Capital" herein for additional information on lines of credit.

Net cash provided from operating activities totaled $65.9 million for the first three months of 2013, an increase of $21.7 million as compared to the first three months of 2012. The increase in cash provided from operating activities was primarily due to the timing of payments resulting in a smaller increase in prepaid income tax and a smaller reduction in accounts payable compared to the first quarter 2012. Net cash used for investing activities totaled $66.8 million for the first three months of 2013 primarily due to expenditures related to the construction of Plant Spectrum and payments pursuant to long-term service agreements. Net cash provided from financing activities totaled $47.9 million for the first three months of 2013 primarily due to an increase in notes payable, partially offset by payment of common stock dividends. Fluctuations in cash flow from financing activities vary year to year based on capital needs and the maturity or redemption of securities.

Significant asset changes in the balance sheet for the first three months of 2013 include a $47.0 million increase in cash due to the timing of cash transactions; a $12.0 million decrease in accounts receivable from affiliated companies primarily due to lower energy sales under the IIC; a $23.8 million increase in prepaid service agreements-current due to the timing of plant outages; and a $55.7 million increase in CWIP primarily due to expenditures on Plant Spectrum.

Significant liability and stockholder's equity changes in the balance sheet for the first three months of 2013 include a $77.0 million increase in notes payable to non-affiliates due to the timing of cash transactions; a $10.8 million decrease in accrued interest due to scheduled debt service; a $13.6 million increase in accumulated deferred income taxes primarily due to bonus depreciation; and a $12.7 million decrease in deferred capacity revenues-affiliated due to seasonality.

Capital Requirements and Contractual Obligations

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Capital Requirements and Contractual Obligations" of Southern Power in Item 7 of the Form 10-K for a description of Southern Power's capital requirements for its construction program, scheduled maturities of long-term debt, as well as the related interest, leases, derivative obligations, purchase commitments, and unrecognized tax benefits. There are no requirements through March 31, 2014 to fund maturities of long-term debt.

The construction program is subject to periodic review and revision; these amounts include estimates for potential plant acquisitions and new construction as well as ongoing capital improvements and work to be performed under long-term service agreements. Planned expenditures for plant acquisitions may vary due to market opportunities and

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Southern Power's ability to execute its growth strategy. Actual construction costs may vary from these estimates because of changes in factors such as: business conditions; environmental statutes and regulations; FERC rules and regulations; load projections; legislation; the cost and efficiency of construction labor, equipment, and materials; project scope and design changes; and the cost of capital.

Sources of Capital

Southern Power may use operating cash flows, external funds, or equity capital or loans from Southern Company to finance any new projects, acquisitions, and ongoing capital requirements. Southern Power expects to generate external funds from the issuance of unsecured senior debt and commercial paper or utilization of credit arrangements from banks. However, the amount, type, and timing of any future financings, if needed, will depend upon prevailing market conditions, regulatory approval, and other factors. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" of Southern Power in Item 7 of the Form 10-K for additional information.

Southern Power's current liabilities frequently exceed current assets due to the use of short-term debt as a funding source, as well as cash needs which can fluctuate significantly due to the seasonality of the business.

To meet liquidity and capital resource requirements, Southern Power had at March 31, 2013 cash and cash equivalents of approximately $75.6 million and a committed credit facility of $500 million (Facility). In February 2013, Southern Power amended the Facility, which extended the maturity date from 2016 to 2018. The Facility contains a covenant that limits the ratio of debt to capitalization (each as defined in the Facility) to a maximum of 65% and contains a cross default provision that is restricted only to the indebtedness of Southern Power. Southern Power is currently in compliance with all such covenants. Proceeds from this Facility may be used for working capital and general corporate purposes as well as liquidity support for Southern Power's commercial paper program. See Note 6 to the financial statements of Southern Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

Southern Power's commercial paper program is used to finance acquisition and construction costs related to electric generating facilities and for general corporate purposes.

Details of short-term borrowings were as follows: 

	Short-term Debt at March 31, 2013				Short-term Debt During the Period (a)
	Amount Outstanding		Weighted Average Interest Rate		Average Outstanding		Weighted Average Interest Rate		Maximum Amount Outstanding
	(in millions)				(in millions)				(in millions)
Commercial paper	$	148	0.4	%	$	44	0.4	%	$	148

(a) Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2013.

Management believes that the need for working capital can be adequately met by utilizing the commercial paper program, the Facility, and cash.

Credit Rating Risk

Southern Power does not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change to BBB and Baa2, or BBB- and/or Baa3 or below. These contracts are for physical electricity purchases and sales, fuel transportation and storage, and energy price risk management.

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The maximum potential collateral requirements under these contracts at March 31, 2013 were as follows:

Credit Ratings	Maximum Potential Collateral Requirements
	(in millions)
At BBB and Baa2	$	9
At BBB- and/or Baa3	467
Below BBB- and/or Baa3	1,203

Included in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participant has a credit rating change to below investment grade. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. Additionally, any credit rating downgrade could impact Southern Power's ability to access capital markets, particularly the short-term debt market.

In addition, through the acquisition of Plant Rowan, Southern Power assumed a PPA with North Carolina Municipal Power Agency No. 1 that could require collateral, but not accelerated payment, in the event of a downgrade of Southern Power's credit. The PPA requires credit assurances without stating a specific credit rating. The amount of collateral required would depend upon actual losses, if any, resulting from a credit downgrade.

Market Price Risk

Southern Power is exposed to market risks, including changes in interest rates, certain energy-related commodity prices, and, occasionally, currency exchange rates. To manage the volatility attributable to these exposures, Southern Power takes advantage of natural offsets and enters into various derivative transactions for the remaining exposures pursuant to Southern Power's policies in areas such as counterparty exposure and risk management practices. Southern Power's policy is that derivatives are to be used primarily for hedging purposes and mandates strict adherence to all applicable risk management policies. Derivative positions are monitored using techniques including, but not limited to, market valuation, value at risk, stress tests, and sensitivity analysis.

Southern Power's market risk exposure relative to interest rate changes for the first quarter 2013 has not changed materially compared with the December 31, 2012 reporting period. Since a significant portion of outstanding indebtedness bears interest at fixed rates, Southern Power is not aware of any facts or circumstances that would significantly affect exposure on existing indebtedness in the near term. However, the impact on future financing costs cannot now be determined.

Because energy from Southern Power's facilities is primarily sold under long-term PPAs with tolling agreements and provisions shifting substantially all of the responsibility for fuel cost to the counterparties, Southern Power's exposure to market volatility in commodity fuel prices and prices of electricity is generally limited. However, Southern Power has been and may continue to be exposed to market volatility in energy-related commodity prices as a result of sales of uncontracted generating capacity.

The changes in fair value of energy-related derivative contracts for the three months ended March 31, 2013 were as follows:

	First Quarter 2013 Changes
	Fair Value
	(in millions)
Contracts outstanding at the beginning of the period, assets (liabilities), net	$	0.8
Contracts realized or settled	0.2
Current period changes(a)	2.6
Contracts outstanding at the end of the period, assets (liabilities), net	$	3.6

(a)Current period changes also include the changes in fair value of new contracts entered into during the period, if any.

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The change in the fair value positions of the energy-related derivative contracts for the three months ended March 31, 2013 was an increase of $2.8 million which is due to both power and natural gas positions. The changes are attributable to both the volume and prices of power and natural gas as follows:

	March 31, 2013			December 31, 2012
Power – net purchased or (sold)
MWHs (in thousands)	(52.8		)	—
Weighted average contract cost per MWH above (below) market prices (in dollars)	$	3.58		$	—
Natural gas net purchased
Commodity – million mmBtu	5.2			5.0
Commodity – weighted average contract cost per mmBtu above (below) market prices (in dollars)	$	(0.57	)	$	(0.02	)

The net fair value of energy-related derivative contracts by hedge designation reflected in the financial statements as assets (liabilities) consists of the following:

Asset (Liability) Derivatives	March 31, 2013		December 31, 2012
	(in millions)
Cash flow hedges	$	—	$	—
Not designated	3.6		0.8
Total fair value	$	3.6	$	0.8

Gains and losses on energy-related derivatives used by Southern Power to hedge anticipated purchases and sales are initially deferred in AOCI before being recognized in income in the same period as the hedged transaction. Gains and losses on energy-related derivative contracts that are not designated or fail to qualify as hedges are recognized in Southern Power's statements of income as incurred.

For Southern Power's energy-related derivatives not designated as hedging instruments, a substantial portion of the pre-tax realized and unrealized gains and losses is associated with hedging fuel price risk of certain PPA customers and has no impact on net income or on fuel expense as presented in Southern Power's statements of income. As a result, for the three months ended March 31, 2013, the pre-tax effects of energy-related derivatives not designated as hedging instruments on Southern Power's statements of income were immaterial.

Southern Power uses over-the-counter contracts that are not exchange traded but are fair valued using prices which are market observable, and thus fall into Level 2. See Note (C) to the Condensed Financial Statements herein for further discussion on fair value measurements. The maturities of the energy-related derivative contracts, which are all Level 2 of the fair value hierarchy, at March 31, 2013 were as follows:

			March 31, 2013 Fair Value Measurements
	Total		Maturity
	Fair Value		Year 1		Years 2&3		Years 4&5
	(in millions)
Level 1	$	—	$	—	$	—	$	—
Level 2	3.6		2.3		0.2		1.1
Level 3	—		—		—		—
Fair value of contracts outstanding at end of period	$	3.6	$	2.3	$	0.2	$	1.1

For additional information, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" of Southern Power in Item 7 and Note 1 under "Financial Instruments"

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and Note 9 to the financial statements of Southern Power in Item 8 of the Form 10-K and Note (H) to the Condensed Financial Statements herein.

Financing Activities

During the three months ended March 31, 2013, Southern Power prepaid $0.2 million of long-term debt to TRE.

In March 2013, Southern Power issued an additional $1.7 million under a promissory note, due September 30, 2032, to TRE related to the financing of Spectrum.

Subsequent to March 31, 2013, Southern Power issued a $5.6 million promissory note, due April 30, 2033, to TRE related to the financing of Campo Verde.

In addition to any financings that may be necessary to meet capital requirements and contractual obligations, Southern Power plans to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS

FOR

THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

ALABAMA POWER COMPANY

GEORGIA POWER COMPANY

GULF POWER COMPANY

MISSISSIPPI POWER COMPANY

SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES

INDEX TO APPLICABLE NOTES TO

FINANCIAL STATEMENTS BY REGISTRANT

Registrant	Applicable Notes
Southern Company	A, B, C, D, E, F, G, H, I, J, K
Alabama Power	A, B, C, E, F, G, H
Georgia Power	A, B, C, E, F, G, H
Gulf Power	A, B, C, E, F, G, H
Mississippi Power	A, B, C, E, F, G, H
Southern Power	A, B, C, E, G, H, I

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THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES

ALABAMA POWER COMPANY

GEORGIA POWER COMPANY

GULF POWER COMPANY

MISSISSIPPI POWER COMPANY

SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES

NOTES TO THE CONDENSED FINANCIAL STATEMENTS:

(A) INTRODUCTION

The condensed quarterly financial statements of each registrant included herein have been prepared by such registrant, without audit, pursuant to the rules and regulations of the SEC. The Condensed Balance Sheets as of December 31, 2012 have been derived from the audited financial statements of each registrant. In the opinion of each registrant's management, the information regarding such registrant furnished herein reflects all adjustments, which, except as otherwise disclosed, are of a normal recurring nature, necessary to present fairly the results of operations for the periods ended March 31, 2013 and 2012. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations, although each registrant believes that the disclosures regarding such registrant are adequate to make the information presented not misleading. Disclosures which would substantially duplicate the disclosures in the Form 10-K (with respect to Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power) and the Form 10-K/A (with respect to Mississippi Power) and details which have not changed significantly in amount or composition since the filings of the Form 10-K or the Form 10-K/A, as applicable, are generally omitted from this Quarterly Report on Form 10-Q unless specifically required by GAAP. Therefore, these Condensed Financial Statements should be read in conjunction with the financial statements and the notes thereto included in the Form 10-K (with respect to Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power) and the Form 10-K/A (with respect to Mississippi Power). Due to the seasonal variations in the demand for energy, operating results for the periods presented are not necessarily indicative of the operating results to be expected for the full year.

Certain prior year data presented in the financial statements have been reclassified to conform to the current year presentation.

(B) CONTINGENCIES AND REGULATORY MATTERS

See Note 3 to the financial statements of the registrants (other than Mississippi Power) in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A for information relating to various lawsuits, other contingencies, and regulatory matters.

General Litigation Matters

Each registrant is subject to certain claims and legal actions arising in the ordinary course of business. In addition, business activities of Southern Company's subsidiaries are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide (CO₂) and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent. The ultimate outcome of such pending or potential litigation against each registrant and any subsidiaries cannot be predicted at this time; however, for current proceedings not specifically reported herein or in Note 3 to the financial statements of each registrant (other than Mississippi Power) in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on such registrant's financial statements.

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Environmental Matters

New Source Review Actions

In 1999, the EPA brought a civil action in the U.S. District Court for the Northern District of Georgia against certain Southern Company subsidiaries, including Alabama Power and Georgia Power, alleging that these subsidiaries had violated the NSR provisions of the Clean Air Act and related state laws at certain coal-fired generating facilities. The EPA alleged NSR violations at five coal-fired generating facilities operated by Alabama Power, including a unit co-owned by Mississippi Power, and three coal-fired generating facilities operated by Georgia Power, including a unit co-owned by Gulf Power. The civil action sought penalties and injunctive relief, including an order requiring installation of the best available control technology at the affected units. The case against Georgia Power (including claims related to the unit co-owned by Gulf Power) was administratively closed in 2001 and has not been reopened. After Alabama Power was dismissed from the original action, the EPA filed a separate action in 2001 against Alabama Power (including claims related to the unit co-owned by Mississippi Power) in the U.S. District Court for the Northern District of Alabama.

In 2006, the U.S. District Court for the Northern District of Alabama entered a consent decree, resolving claims relating to the alleged NSR violations at Plant Miller. In 2010, the EPA dismissed five of its eight remaining claims against Alabama Power, leaving only three claims, including one relating to the unit co-owned by Mississippi Power. In 2011, the U.S. District Court for the Northern District of Alabama granted Alabama Power summary judgment on all remaining claims and dismissed the case with prejudice. That judgment is on appeal to the U.S. Court of Appeals for the Eleventh Circuit. In February 2012, the EPA filed a motion in the U.S. District Court for the Northern District of Alabama seeking vacatur of the judgment and recusal of the judge in the case involving Alabama Power.

Southern Company and each traditional operating company believe each such traditional operating company complied with applicable laws and regulations in effect at the time the work in question took place. The Clean Air Act authorizes maximum civil penalties of $25,000 to $37,500 per day, per violation, depending on the date of the alleged violation. An adverse outcome could require substantial capital expenditures that cannot be determined at this time and could possibly require payment of substantial penalties. Such expenditures could affect future results of operations, cash flows, and financial condition if such costs are not recovered through regulated rates. The ultimate outcome of these matters cannot be determined at this time.

Climate Change Litigation

Kivalina Case

In 2008, the Native Village of Kivalina and the City of Kivalina filed a lawsuit in the U.S. District Court for the Northern District of California against several electric utilities (including Southern Company), several oil companies, and a coal company. The plaintiffs allege that the village is being destroyed by erosion allegedly caused by global warming that the plaintiffs attribute to emissions of greenhouse gases by the defendants. The plaintiffs assert claims for public and private nuisance and contend that some of the defendants (including Southern Company) acted in concert and are therefore jointly and severally liable for the plaintiffs' damages. The suit seeks damages for lost property values and for the cost of relocating the village, which is alleged to be $95 million to $400 million. In 2009, the U.S. District Court for the Northern District of California granted the defendants' motions to dismiss the case. In September 2012, the U.S. Court of Appeals for the Ninth Circuit upheld the U.S. District Court for the Northern District of California's dismissal of the case. In November 2012, the U.S. Court of Appeals for the Ninth Circuit denied the plaintiffs' request for review of the decision. On February 25, 2013, the plaintiffs filed a petition for writ of certiorari with the U.S. Supreme Court. Southern Company believes that these claims are without merit. While Southern Company believes the likelihood of loss is remote based on existing case law, it is not possible to predict with certainty whether Southern Company will incur any liability in connection with this matter. The ultimate outcome of this matter cannot be determined at this time.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Hurricane Katrina Case

In 2005, immediately following Hurricane Katrina, a lawsuit was filed in the U.S. District Court for the Southern District of Mississippi by Ned Comer on behalf of Mississippi residents seeking recovery for property damage and personal injuries caused by Hurricane Katrina. In 2006, the plaintiffs amended the complaint to include Southern Company and many other electric utilities, oil companies, chemical companies, and coal producers. The plaintiffs allege that the defendants contributed to climate change, which contributed to the intensity of Hurricane Katrina. In 2007, the U.S. District Court for the Southern District of Mississippi dismissed the case. On appeal to the U.S. Court of Appeals for the Fifth Circuit, a three-judge panel reversed the U.S. District Court for the Southern District of Mississippi, holding that the case could proceed, but, on rehearing, the full U.S. Court of Appeals for the Fifth Circuit dismissed the plaintiffs' appeal, resulting in reinstatement of the decision of the U.S. District Court for the Southern District of Mississippi in favor of the defendants. In 2011, the plaintiffs filed an amended version of their class action complaint, arguing that the earlier dismissal was on procedural grounds and under Mississippi law the plaintiffs have a right to re-file. The amended complaint was also filed against numerous chemical, coal, oil, and utility companies, including Alabama Power, Georgia Power, Gulf Power, and Southern Power. In March 2012, the U.S. District Court for the Southern District of Mississippi dismissed the plaintiffs' amended complaint. In April 2012, the plaintiffs appealed the case to the U.S. Court of Appeals for the Fifth Circuit. Each Southern Company entity named in the lawsuit believes that these claims are without merit. While each Southern Company entity named in the lawsuit believes the likelihood of loss is remote based on existing case law, it is not possible to predict with certainty whether any Southern Company entity named in the lawsuit will incur any liability in connection with this matter. The ultimate outcome of this matter cannot be determined at this time.

Environmental Remediation

The Southern Company system must comply with environmental laws and regulations that cover the handling and disposal of waste and releases of hazardous substances. Under these various laws and regulations, the Southern Company system could incur substantial costs to clean up properties. The traditional operating companies have each received authority from their respective state PSCs to recover approved environmental compliance costs through regulatory mechanisms. These rates are adjusted annually or as necessary within limits approved by the state PSCs.

Georgia Power's environmental remediation liability as of March 31, 2013 was $18 million. Georgia Power has been designated or identified as a potentially responsible party (PRP) at sites governed by the Georgia Hazardous Site Response Act and/or by the federal Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), including a large site in Brunswick, Georgia on the CERCLA National Priorities List (NPL). The parties have completed the removal of wastes from the Brunswick site as ordered by the EPA. Additional cleanup and claims for recovery of natural resource damages at this site or for the assessment and potential cleanup of other sites on the Georgia Hazardous Sites Inventory and the CERCLA NPL are anticipated.

Georgia Power and numerous other entities have been designated by the EPA as PRPs at the Ward Transformer Superfund site located in Raleigh, North Carolina. In 2011, the EPA issued a Unilateral Administrative Order (UAO) to Georgia Power and 22 other parties, ordering specific remedial action of certain areas at the site. In 2011, Georgia Power filed a response with the EPA stating it has sufficient cause to believe it is not a liable party under CERCLA. The EPA notified Georgia Power in 2011 that it is considering enforcement options against Georgia Power and other non-complying UAO recipients. If the court determines that a respondent failed to comply with the UAO without sufficient cause, the EPA may also seek civil penalties of up to $37,500 per day for the violation and punitive damages of up to three times the costs incurred by the EPA as a result of the party's failure to comply with the UAO.

In addition to the EPA's action at this site, Georgia Power, along with many other parties, was sued in a private action by several existing PRPs for cost recovery related to the removal action. On February 1, 2013, the court granted Georgia Power's summary judgment motion ruling that Georgia Power has no liability in the private action. The plaintiffs may appeal the court's order to the U.S. Court of Appeals for the Fourth Circuit.

The ultimate outcome of these matters will depend upon the success of defenses asserted, the ultimate number of PRPs participating in the cleanup, and numerous other factors and cannot be determined at this time; however, as a

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result of the regulatory treatment, they are not expected to have a material impact on Southern Company's or Georgia Power's financial statements. See Note 1 to the financial statements of Georgia Power under "Environmental Remediation" in Item 8 of the Form 10-K for additional information regarding the regulatory treatment.

Gulf Power's environmental remediation liability includes estimated costs of environmental remediation projects of approximately $57 million as of March 31, 2013. These estimated costs primarily relate to site closure criteria by the Florida Department of Environmental Protection (FDEP) for potential impacts to soil and groundwater from herbicide applications at Gulf Power substations. The schedule for completion of the remediation projects is subject to FDEP approval. The projects have been approved by the Florida PSC for recovery through Gulf Power's environmental cost recovery clause; therefore, there was no impact on net income as a result of these estimates.

In 2003, the Texas Commission on Environmental Quality (TCEQ) designated Mississippi Power as a PRP at a site in Texas. The site was owned by an electric transformer company that handled Mississippi Power's transformers as well as those of many other entities. The site owner is bankrupt and the State of Texas has entered into an agreement with Mississippi Power and several other utilities to investigate and remediate the site. The feasibility study/presumptive remedy document was originally filed with TCEQ in 2011 and remains under consideration by the agency. Amounts expensed and accrued related to this work were not material. Hundreds of entities have received notices from the TCEQ requesting their participation in the anticipated site remediation. The final impact of this matter on Mississippi Power will depend upon further environmental assessment and the ultimate number of PRPs. The remediation expenses incurred by Mississippi Power are expected to be recovered through the ECO Plan.

The final outcome of these matters cannot be determined at this time. However, based on the currently known conditions at these sites and the nature and extent of activities relating to these sites, management of Southern Company, Georgia Power, Gulf Power, and Mississippi Power does not believe that additional liabilities, if any, at these sites would be material to their respective financial statements.

Nuclear Fuel Disposal Cost Litigation

Acting through the DOE and pursuant to the Nuclear Waste Policy Act of 1982, the U.S. government entered into contracts with Alabama Power and Georgia Power that require the DOE to dispose of spent nuclear fuel and high level radioactive waste generated at Plants Hatch and Farley and Plant Vogtle Units 1 and 2. The DOE failed to timely perform and has yet to commence the performance of its contractual and statutory obligation to dispose of spent nuclear fuel beginning no later than January 31, 1998. Consequently, Alabama Power and Georgia Power have pursued and continue to pursue legal remedies against the U.S. government for its partial breach of contract.

As a result of the first lawsuit, Georgia Power recovered approximately $27 million, based on its ownership interests, and Alabama Power recovered approximately $17 million, representing substantially all of the Southern Company system's direct costs of the expansion of spent nuclear fuel storage facilities at Plants Farley and Hatch and Plant Vogtle Units 1 and 2 from 1998 through 2004.

In 2008, Alabama Power and Georgia Power filed a second lawsuit against the U.S. government for the costs of continuing to store spent nuclear fuel at Plants Farley and Hatch and Plant Vogtle Units 1 and 2. Damages are being sought for the period from January 1, 2005 through December 31, 2010. Damages will continue to accrue until the issue is resolved or storage is provided. No amounts have been recognized in the financial statements as of March 31, 2013 for any potential recoveries from the second lawsuit. The final outcome of these matters cannot be determined at this time; however, no material impact on Southern Company's, Alabama Power's, or Georgia Power's net income is expected.

Sufficient pool storage capacity for spent fuel is available at Plant Vogtle Units 1 and 2 to maintain full-core discharge capability for both units into 2014. Construction of an on-site dry storage facility at Plant Vogtle Units 1 and 2 has begun. The facility is expected to begin operation in sufficient time to maintain full-core discharge capability, with additional on-site dry storage to be added as needed. At Plants Hatch and Farley, on-site dry spent fuel storage facilities are operational and can be expanded to accommodate spent fuel through the expected life of each plant.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

FERC Matters

See Note 3 to the financial statements of Mississippi Power under "FERC Matters" in Item 8 of the Form 10-K/A for additional information regarding Mississippi Power's settlement agreement with its wholesale customers for revised rates related to the wholesale Municipal and Rural Associations (MRA) cost-based electric tariff. See Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K, Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A, and "Integrated Coal Gasification Combined Cycle" herein for information regarding Mississippi Power's construction of the Kemper IGCC.

In 2011, Mississippi Power filed a request with the FERC for an increase in wholesale base revenues under the MRA cost-based electric tariff. In March 2012, Mississippi Power entered into a settlement agreement with its wholesale customers which provided that base revenues would increase by approximately $22.6 million over a 12-month period with revised rates effective for services rendered beginning April 1, 2012. In March 2012, the FERC approved a motion to place interim rates into effect beginning in May 2012. In September 2012, Mississippi Power, with its wholesale customers, filed a final settlement agreement with the FERC. In November 2012, the settlement judge certified the settlement agreement to the FERC with the recommendation that it be approved. The FERC has not yet approved the settlement agreement.

On April 1, 2013, Mississippi Power reached a settlement agreement with its wholesale customers and filed a request with the FERC for an additional increase in the MRA cost-based electric tariff. The 2013 settlement agreement provides that base rates under the MRA cost-based electric tariff will increase by approximately $24.2 million over a 12-month period, with revised rates effective for services rendered beginning April 1, 2013. If the 2013 settlement agreement is approved by the FERC, the amount of base rate revenues to be received in 2013 from the agreed upon increase will be approximately $18.0 million.

The ultimate outcome of these matters cannot be determined at this time.

Retail Regulatory Matters

Alabama Power

Rate CNP

See Note 3 to the financial statements of Southern Company and Alabama Power under "Retail Regulatory Matters – Alabama Power – Rate CNP" and "Retail Regulatory Matters – Rate CNP" in Item 8 of the Form 10-K for additional information regarding Alabama Power's recovery of retail costs through Rate Certificated New Plant Power Purchase Agreement (Rate CNP PPA) and Rate Certificated New Plant Environmental (Rate CNP Environmental). Alabama Power's under recovered Rate CNP PPA balance at March 31, 2013 was $7 million as compared to $9 million at December 31, 2012. This under recovered balance at March 31, 2013 is included in deferred under recovered regulatory clause revenues on Southern Company's and Alabama Power's Condensed Balance Sheet herein. For Rate CNP PPA, this classification is based on an estimate, which includes such factors as purchased power capacity and energy demand. A change in any of these factors could have a material impact on the timing of any recovery of the under recovered retail costs. Alabama Power's under recovered Rate CNP Environmental balance at March 31, 2013 was $19 million as compared to $21 million at December 31, 2012. This under recovered balance at March 31, 2013 consists of $11 million in under recovered regulatory clause revenues and $8 million in deferred under recovered regulatory clause revenues on Southern Company's and Alabama Power's Condensed Balance Sheets herein. For Rate CNP Environmental, this classification is based on an estimate, which includes such factors as costs to comply with environmental mandates and energy demand. A change in any of these factors could have a material impact on the timing of any recovery of the under recovered retail costs.

Retail Energy Cost Recovery

See Note 3 to the financial statements of Southern Company and Alabama Power under "Retail Regulatory Matters – Alabama Power – Energy Cost Recovery" and "Retail Regulatory Matters – Energy Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information regarding Alabama Power's energy cost recovery. Alabama Power's over recovered fuel costs at March 31, 2013 totaled $21 million as compared to an under recovered balance

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

of $4 million at December 31, 2012. The over recovered fuel costs at March 31, 2013 are included in other regulatory liabilities, current and the under recovered fuel costs at December 31, 2012 are included in deferred under recovered regulatory clause revenues on Southern Company's and Alabama Power's Condensed Balance Sheets herein. These classifications are based on estimates, which include such factors as weather, generation availability, energy demand, and the price of energy. A change in any of these factors could have a material impact on the timing of any return of the over recovered fuel costs.

Natural Disaster Cost Recovery

See Note 3 to the financial statements of Southern Company and Alabama Power under "Retail Regulatory Matters – Alabama Power – Natural Disaster Reserve" and "Retail Regulatory Matters – Natural Disaster Reserve," respectively, in Item 8 of the Form 10-K for additional information regarding natural disaster cost recovery. At March 31, 2013, the NDR had an accumulated balance of $93 million as compared to $103 million at December 31, 2012, which is included on Southern Company's and Alabama Power's Condensed Balance Sheets herein under other regulatory liabilities, deferred. The decrease in the NDR in the first quarter 2013 is a result of storm activity. The related accruals are reflected as operations and maintenance expenses on Southern Company's and Alabama Power's Condensed Statements of Income herein.

Georgia Power

Fuel Cost Recovery

See Note 3 to the financial statements of Southern Company and Georgia Power under "Retail Regulatory Matters – Georgia Power – Fuel Cost Recovery" and "Retail Regulatory Matters – Fuel Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information.

As of March 31, 2013 and December 31, 2012, Georgia Power's fuel cost over recovery balance totaled $182 million and $230 million, respectively, and is included in current liabilities and other deferred credits and liabilities on Southern Company's and Georgia Power's Condensed Balance Sheets herein.

Fuel cost recovery revenues as recorded on the financial statements are adjusted for differences in actual recoverable fuel costs and amounts billed in current regulated rates. Accordingly, any changes in the billing factor will not have a significant effect on Southern Company's or Georgia Power's revenues or net income, but will affect cash flow.

Integrated Resource Plans

See Note 3 to the financial statements of Southern Company and Georgia Power under "Retail Regulatory Matters – Georgia Power – Integrated Resource Plans" and "Retail Regulatory Matters – Integrated Resource Plans," respectively, in Item 8 of the Form 10-K for additional information.

On April 17, 2013, the Georgia PSC approved the decertification of Plant Bowen Unit 6 (32 MWs), which was retired on April 25, 2013. The Georgia PSC is scheduled to vote on all other aspects of the 2013 IRP in July 2013. The ultimate outcome of this matter cannot be determined at this time.

Separately, on April 22, 2013, Georgia Power executed two PPAs to purchase energy from two wind farms with capacity totaling 250 MWs in southwest Oklahoma that will commence in 2016 and end in 2035. In addition, on April 29, 2013, Georgia Power executed a PPA for the purchase of 50 MWs of capacity and energy that will commence in 2015 and end in 2035. These PPAs are subject to Georgia PSC approval and, if approved, will result in contractual obligations of approximately $13 million in 2015, $47 million in 2016, $48 million in 2017, and $1.3 billion thereafter.

Nuclear Construction

See Note 3 to the financial statements of Southern Company and Georgia Power under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" and "Retail Regulatory Matters – Nuclear Construction," respectively, in Item 8 of the Form 10-K for additional information regarding Georgia Power's construction of Plant Vogtle Units 3 and 4, the eighth Vogtle Construction Monitoring (VCM) report, and pending litigation.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

In 2008, Georgia Power, acting for itself and as agent for the Owners, entered into an agreement (Vogtle 3 and 4 Agreement) with the Contractor, pursuant to which the Contractor agreed to design, engineer, procure, construct, and test Plant Vogtle Units 3 and 4. Under the terms of the Vogtle 3 and 4 Agreement, the Owners agreed to pay a purchase price that is subject to certain price escalations and adjustments, including fixed escalation amounts and index-based adjustments, as well as adjustments for change orders, and performance bonuses for early completion and unit performance. Each Owner is severally (and not jointly) liable for its proportionate share, based on its ownership interest, of all amounts owed to the Contractor under the Vogtle 3 and 4 Agreement. Georgia Power's proportionate share is 45.7%. The Vogtle 3 and 4 Agreement provides for liquidated damages upon the Contractor's failure to fulfill the schedule and performance guarantees. The Contractor's liability to the Owners for schedule and performance liquidated damages and warranty claims is subject to a cap.

Certain payment obligations of Westinghouse and Stone & Webster, Inc. under the Vogtle 3 and 4 Agreement are guaranteed by Toshiba Corporation and The Shaw Group, Inc., respectively. In the event of certain credit rating downgrades of any Owner, such Owner will be required to provide a letter of credit or other credit enhancement. The Owners may terminate the Vogtle 3 and 4 Agreement at any time for their convenience, provided that the Owners will be required to pay certain termination costs. The Contractor may terminate the Vogtle 3 and 4 Agreement under certain circumstances, including certain Owner suspension or delays of work, action by a governmental authority to permanently stop work, certain breaches of the Vogtle 3 and 4 Agreement by the Owners, Owner insolvency, and certain other events.

In 2009, the Georgia PSC approved inclusion of the Plant Vogtle Units 3 and 4 related CWIP accounts in rate base, and the State of Georgia enacted the Georgia Nuclear Energy Financing Act, which allows Georgia Power to recover financing costs for nuclear construction projects through annual adjustments to an NCCR tariff by including the related CWIP accounts in rate base during the construction period. The Georgia PSC approved increases to the NCCR tariff of approximately $223 million, $35 million, and $50 million, effective January 1, 2011, 2012, and 2013, respectively. Through the NCCR tariff, Georgia Power is collecting and amortizing to earnings approximately $91 million of financing costs, capitalized in 2009 and 2010, over the five-year period ending December 31, 2015, in addition to the ongoing financing costs. At March 31, 2013, approximately $50 million of these 2009 and 2010 costs remained unamortized in CWIP.

In 2009, the NRC issued an Early Site Permit and Limited Work Authorization which allowed limited work to begin on Plant Vogtle Units 3 and 4. The NRC certified the Westinghouse Design Control Document, as amended (DCD), for the AP1000 nuclear reactor design, effective December 30, 2011, and issued combined construction and operating licenses (COLs) in February 2012. Receipt of the COLs allowed full construction to begin.

In February 2012, separate groups of petitioners filed petitions in the U.S. Court of Appeals for the District of Columbia Circuit seeking judicial review of the NRC's issuance of the COLs and certification of the DCD. These petitions were consolidated in April 2012. Also in April 2012, another group of petitioners filed a motion to stay the effectiveness of the COLs with the U.S. District Court for the District of Columbia. In July 2012, the U.S. Court of Appeals for the District of Columbia Circuit denied the petitioners' motion to stay the effectiveness of the COLs. Georgia Power has intervened in, and is vigorously contesting, these petitions. Additional technical and procedural challenges to the construction and licensing of Plant Vogtle Units 3 and 4, at the federal and state level, are expected as construction proceeds.

Georgia Power is required to file semi-annual VCM reports with the Georgia PSC by February 28 and August 31 each year. On February 19, 2013, the Georgia PSC voted to approve Georgia Power's seventh VCM report, including construction capital costs incurred through June 30, 2012 of approximately $2.0 billion. Georgia Power's eighth VCM report requests approval for an additional $0.2 billion of construction capital costs incurred through December 31, 2012. If the projected certified construction capital costs to be borne by Georgia Power increase by 5% or the projected in-service dates are significantly extended, Georgia Power is required to seek an amendment to the Plant Vogtle Units 3 and 4 certificate from the Georgia PSC. Accordingly, the eighth VCM also requests an amendment to the certificate to increase the estimated in-service capital cost of Plant Vogtle Units 3 and 4 to $4.8 billion and to extend the estimated in-service dates to the fourth quarter 2017 and the fourth quarter 2018 for Plant Vogtle Units 3 and 4, respectively. Associated financing costs during the construction period are estimated to total approximately $2.0 billion. The Georgia PSC is expected to vote on the eighth VCM by October 2013.

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In July 2012, the Owners and the Contractor began negotiations regarding the costs associated with design changes to the DCD and the delays in the timing of approval of the DCD and issuance of the COLs, including the assertion by the Contractor that the Owners are responsible for these costs under the terms of the Vogtle 3 and 4 Agreement. The Contractor has claimed that its estimated adjustment attributable to Georgia Power (based on Georgia Power's ownership interest) is approximately $425 million (in 2008 dollars) with respect to these issues. The Contractor also has asserted it is entitled to further schedule extensions. Georgia Power has not agreed with either the proposed cost or schedule adjustments or that the Owners have any responsibility for costs related to these issues. In November 2012, Georgia Power and the other Owners filed suit against the Contractor in the U.S. District Court for the Southern District of Georgia seeking a declaratory judgment that the Owners are not responsible for these costs. Also in November 2012, the Contractor filed suit against Georgia Power and the other Owners in the U.S. District Court for the District of Columbia alleging the Owners are responsible for these costs. While litigation has commenced and Georgia Power intends to vigorously defend its positions, Georgia Power expects negotiations with the Contractor to continue with respect to cost and schedule during which negotiations the parties may reach a mutually acceptable compromise of their positions.

In addition, processes are in place that are designed to assure compliance with the requirements specified in the DCD and the COLs, including rigorous inspections by Southern Nuclear and the NRC that occur throughout construction. During the fourth quarter 2012, certain details of the rebar design for the Plant Vogtle Unit 3 nuclear island were evaluated for consistency with the DCD and deviations were identified. On February 26, 2013 and March 1, 2013, the NRC approved the two license amendment requests required to conform the rebar design details to NRC requirements and, on March 14, 2013, the placement of basemat structural concrete for the nuclear island of Plant Vogtle Unit 3 was completed. Additional license amendment requests are pending before the NRC. Various design and other issues are expected to arise as construction proceeds, which may result in additional license amendments or require other resolution. If any license amendment requests are not resolved in a timely manner, there may be delays in the project schedule that could result in increased costs either to the Owners, the Contractor, or both.

As construction continues, additional delays in the fabrication and assembly of structural modules, the failure of such modules to meet applicable standards, or other issues may further impact project schedule and cost. Additional claims by the Contractor or Georgia Power (on behalf of the Owners) are also likely to arise throughout construction. These claims may be resolved through formal and informal dispute resolution procedures under the Vogtle 3 and 4 Agreement, but also may be resolved through litigation.

The ultimate outcome of these matters cannot be determined at this time.

Gulf Power

Retail Base Rate Case

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Retail Base Rate Case" in Item 8 of the Form 10-K for additional information.

On May 9, 2013, in accordance with the Florida Administrative Code Rules, Gulf Power notified the Florida PSC of Gulf Power's intent to file for an increase in Gulf Power's base rates, not sooner than July 8, 2013 (60 days after the notification) and not later than July 22, 2013. Gulf Power is proposing the projected 12 months ending December 31, 2014 as the test year for the anticipated rate case filing. The proposed test year is a calendar year that corresponds to Gulf Power's fiscal year and largely corresponds with the first fiscal period that new, permanent rates could be in effect. Gulf Power currently estimates that an increase in annual revenues between $75 million and$80 million will be requested. The ultimate outcome of this matter cannot be determined at this time.

Cost Recovery Clauses

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses" in Item 8 of the Form 10-K for additional information.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Fuel Cost Recovery

See Notes 1 and 3 to the financial statements of Gulf Power under "Revenues" and "Retail Regulatory Matters – Cost Recovery Clauses – Fuel Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information.

Over recovered fuel costs at March 31, 2013 totaled $5.1 million compared to $17.1 million at December 31, 2012. These amounts are included in other regulatory liabilities, current on Gulf Power's Condensed Balance Sheets herein.

Purchased Power Capacity Recovery

See Notes 1 and 3 to the financial statements of Gulf Power under "Revenues" and "Retail Regulatory Matters – Cost Recovery Clauses – Purchased Power Capacity Recovery," respectively, in Item 8 of the Form 10-K for additional information.

At March 31, 2013 the over recovered purchased power capacity costs totaled $1.8 million, which is included in other regulatory liabilities, current on Gulf Power's Condensed Balance Sheets herein. At December 31, 2012, the under recovered purchased power capacity costs totaled $0.8 million, which is included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Environmental Cost Recovery

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses – Environmental Cost Recovery" in Item 8 of the Form 10-K for additional information.

Under recovered environmental costs at March 31, 2013 totaled $8.9 million compared to $1.9 million at December 31, 2012. These amounts are included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Energy Conservation Cost Recovery

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses – Energy Conservation Cost Recovery" in Item 8 of the Form 10-K for additional information.

Under recovered energy conservation costs at March 31, 2013 totaled $3.0 million compared to $0.8 million at December 31, 2012. These amounts are included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Mississippi Power

Performance Evaluation Plan

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Performance Evaluation Plan" in Item 8 of the Form 10-K/A for additional information regarding Mississippi Power's base rates.

On January 18, 2013, Mississippi Power filed its annual PEP filing for 2013, which indicated a rate increase of 1.990%, or $15.8 million, annually. On March 4, 2013, Mississippi Power and the Mississippi Public Utilities Staff (MPUS) filed a joint stipulation which revised the annual PEP filing for 2013 to reflect the removal of certain costs related to unresolved matters that are currently under review. On March 5, 2013, the revised annual PEP filing for 2013 was approved by the Mississippi PSC, which resulted in a rate increase of 1.925%, or $15.3 million, annually, with the new rates effective March 19, 2013. Mississippi Power may be entitled to $3.3 million in additional revenues in 2013 as a result of the late implementation of the 2013 PEP rate increase.

On March 15, 2013, Mississippi Power submitted its annual PEP lookback filing for 2012, which indicated a refund due to customers of $4.7 million, which was accrued in retail revenues. On May 1, 2013, the MPUS contested the filing.

The ultimate outcome of these matters cannot be determined at this time.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Environmental Compliance Overview Plan

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Environmental Compliance Overview Plan" in Item 8 of the Form 10-K/A for information on Mississippi Power's annual environmental filing with the Mississippi PSC.

In April 2012, the Mississippi PSC approved Mississippi Power's request for a CPCN to construct a flue gas desulfurization system (scrubber) on Plant Daniel Units 1 and 2. In May 2012, the Sierra Club filed a notice of appeal of the order with the Chancery Court of Harrison County, Mississippi (Chancery Court). These units are jointly owned by Mississippi Power and Gulf Power, with 50% ownership each. The estimated total cost of the project is approximately $660 million, with Mississippi Power's portion being $330 million, excluding AFUDC. The project is scheduled for completion in December 2015. Mississippi Power's portion of the cost is expected to be recovered through the ECO Plan. As of March 31, 2013, total project expenditures were $183.2 million, with Mississippi Power's portion being $91.6 million. The ultimate outcome of this matter cannot be determined at this time.

Fuel Cost Recovery

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Fuel Cost Recovery" in Item 8 of the Form 10-K/A for information regarding Mississippi Power's fuel cost recovery.

On January 18, 2013, in compliance with Mississippi Power's filing requirement, Mississippi Power requested an annual adjustment of the retail fuel cost recovery factor in an amount equal to a decrease of 4.7%, or $35.5 million, of total 2012 retail revenue. The Mississippi PSC approved the retail fuel cost recovery factor on March 5, 2013, with the new rates effective March 19, 2013.

At March 31, 2013, the amount of over recovered retail fuel costs included on Mississippi Power's Condensed Balance Sheets herein was $60.9 million compared to $56.6 million at December 31, 2012. Mississippi Power also has wholesale MRA and Market Based (MB) fuel cost recovery factors. At March 31, 2013, the amount of over recovered wholesale MRA and MB fuel costs included on Mississippi Power's Condensed Balance Sheets herein was $18.1 million and $1.7 million, respectively, compared to $19.0 million and $2.1 million, respectively, at December 31, 2012. In addition, at each of March 31, 2013 and December 31, 2012, the amount of under recovered MRA emissions allowance cost included on Mississippi Power's Condensed Balance Sheets herein was $0.4 million. Mississippi Power's operating revenues are adjusted for differences in actual recoverable fuel cost and amounts billed in accordance with the currently approved cost recovery rate. Accordingly, changes in the billing factor have no significant effect on Mississippi Power's revenues or net income, but will affect cash flow.

Storm Damage Cost Recovery

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Storm Damage Cost Recovery" in Item 8 in the Form 10-K/A for information regarding Mississippi Power's storm damage cost recovery. Mississippi Power maintains a reserve to cover the cost of damage from major storms to its transmission and distribution facilities and generally the cost of uninsured damage to its generation facilities and other property. At March 31, 2013, the balance in the storm reserve was $57.2 million.

Integrated Coal Gasification Combined Cycle

See Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A for information regarding Mississippi Power's construction of the Kemper IGCC.

Kemper IGCC Project Approval

In 2010, the Mississippi PSC issued a CPCN authorizing the acquisition, construction, and operation of the Kemper IGCC (2010 MPSC Order) located in Kemper County, Mississippi. The Sierra Club filed an appeal of the Mississippi PSC's issuance of the CPCN and, in March 2012, the Mississippi Supreme Court reversed the decision of the Chancery Court upholding the 2010 MPSC Order and remanded the matter to the Mississippi PSC. The

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Mississippi Supreme Court concluded that the 2010 MPSC Order did not cite in sufficient detail substantial evidence upon which the Mississippi Supreme Court could determine the basis for the findings of the Mississippi PSC granting the CPCN. In April 2012, the Mississippi PSC issued a detailed order (2012 MPSC Order) confirming the CPCN for the Kemper IGCC, which the Sierra Club appealed to the Chancery Court. In December 2012, the Chancery Court affirmed the 2012 MPSC Order which confirmed the issuance of the CPCN for the Kemper IGCC. On January 8, 2013, the Sierra Club filed an appeal of the Chancery Court's ruling with the Mississippi Supreme Court.

The Kemper IGCC is currently under construction and will utilize an integrated coal gasification combined cycle technology with an output capacity of 582 MWs. The Kemper IGCC will be fueled by locally mined lignite (an abundant, lower heating value coal) from a mine owned by Mississippi Power and situated adjacent to the Kemper IGCC that is scheduled to begin operations in June 2013. In connection with the Kemper IGCC, Mississippi Power also is constructing and plans to operate approximately 61 miles of carbon dioxide (CO₂) pipeline infrastructure. The Kemper IGCC and the CO₂ pipeline are scheduled to be placed in service in May 2014. See Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle – Lignite Mine and CO₂ Pipeline Facilities" in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle – Lignite Mine and CO₂ Pipeline Facilities" in Item 8 of the Form 10-K/A for additional information regarding the lignite mine and the CO₂ pipeline.

The ultimate outcome of the CPCN challenge cannot be determined at this time.

Kemper IGCC Cost Estimate

The certificated cost estimate of the Kemper IGCC included in the 2012 MPSC Order was $2.4 billion, net of $245 million of grants awarded to the project by the DOE under the Clean Coal Power Initiative Round 2 (DOE Grants), the cost of the lignite mine and equipment, the cost of the CO₂ pipeline facilities, and AFUDC related to the Kemper IGCC. The 2012 MPSC Order approved a construction cost cap of up to $2.88 billion, with recovery of prudently-incurred costs subject to approval by the Mississippi PSC. Exceptions to the $2.88 billion cost cap include the cost of the lignite mine and equipment, the cost of the CO₂ pipeline facilities, AFUDC, and certain general exceptions as contemplated in the Settlement Agreement (described below) and the 2012 MPSC Order, which includes change of law, force majeure, and beneficial capital (which exists when Mississippi Power demonstrates that the purpose and effect of the construction cost increase is to produce efficiencies that will result in a neutral or favorable effect on customers, relative to the original proposal for the CPCN) (Cost Cap Exceptions). Recovery of the Cost Cap Exception amounts remains subject to review and approval by the Mississippi PSC.

On April 23, 2013, Mississippi Power revised its cost estimate for the Kemper IGCC to approximately $3.42 billion, net of the DOE Grants and the Cost Cap Exceptions. Estimated amounts of the Cost Cap Exceptions include $245 million for the lignite mine and equipment, $132 million for the CO₂ pipeline facilities, $324 million of AFUDC, and $102 million of other general exceptions. The revised cost estimate reflects additional cost pressures, including labor costs, piping and other material costs, engineering and support costs, and productivity decreases. Mississippi Power does not intend to seek any joint owner contributions or rate recovery for any costs of the Kemper IGCC that exceed the $2.88 billion cost cap, except for amounts subject to the Cost Cap Exceptions.

As a result of an evaluation of the revised cost estimate, Mississippi Power determined that a portion of this $540 million estimated probable loss related to the period ended December 31, 2012. Accordingly, Mississippi Power restated its 2012 financial statements to reflect a pre-tax charge to income for this estimated probable loss of $78.0 million ($48.2 million after tax) in 2012, with the additional $462.0 million ($285.3 million after tax) reflected in the first quarter 2013. Southern Company evaluated the portion of the estimated probable loss related to 2012 and concluded it was not material to Southern Company. Therefore, Southern Company reflected the total pre-tax charge to income for this estimated probable loss of $540.0 million ($333.5 million after tax) in the first quarter 2013.

Southern Company's and Mississippi Power's analysis of the estimated cost to complete the Kemper IGCC will be ongoing throughout the construction period. It is possible that Mississippi Power could experience further cost increases and/or schedule delays with respect to the Kemper IGCC as a result of factors including, but not limited to, costs and productivity of labor, adverse weather conditions, shortages and inconsistent quality of equipment, materials, and labor, contractor or supplier delay or non-performance under construction or other agreements, delays

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associated with start-up activities, and/or unforeseen engineering problems. In subsequent periods, any changes in the estimated costs to complete construction of the Kemper IGCC subject to the $2.88 billion cost cap will be reflected in Southern Company's and Mississippi Power's statements of income and these changes could be material.

As of March 31, 2013, Mississippi Power had spent a total of $2.88 billion on the Kemper IGCC, excluding the estimated probable loss. These costs include$2.41 billion for the portion of the Kemper IGCC subject to the construction cost cap, $188.9 million for the lignite mine and equipment, $84.4 million for the CO₂ pipeline facilities, $156.4 million of AFUDC, and $43.1 million of other costs, including certain general exceptions and certain regulatory assets. Of this total, $2.29 billion was included in CWIP (which is net of the DOE Grants and an estimated probable loss of $540 million), $43.4 million in other regulatory assets, $3.8 million in other deferred charges and assets on Southern Company's and Mississippi Power's Condensed Balance Sheets herein, and $1.0 million was previously expensed. Consistent with the treatment of non-capital costs incurred during the pre-construction period, the Mississippi PSC granted Mississippi Power the authority to defer all non-capital Kemper IGCC-related costs to a regulatory asset during the construction period. This includes deferred costs associated with the generation resource planning, evaluation, and screening activities. The amortization period for the regulatory asset will be determined by the Mississippi PSC at a later date. In addition, Mississippi Power is authorized to accrue carrying costs on the unamortized balance of such regulatory assets at a rate and in a manner to be determined by the Mississippi PSC in future cost recovery mechanism proceedings.

The ultimate outcome of these matters cannot be determined at this time.

Rate Recovery of Kemper IGCC Costs

See "FERC Matters" for additional information regarding Mississippi Power's MRA cost-based tariff relating to recovery of a portion of the Kemper IGCC costs from Mississippi Power's wholesale customers. Rate recovery of the retail portion of the Kemper IGCC is subject to the jurisdiction of the Mississippi PSC. See "Baseload Act" herein for additional information.

On January 24, 2013, Mississippi Power entered into a settlement agreement (Settlement Agreement) with the Mississippi PSC that, among other things, establishes the process for resolving matters regarding cost recovery related to the Kemper IGCC. Under the Settlement Agreement, Mississippi Power agreed to limit the portion of prudently-incurred Kemper IGCC costs to be included in retail rate base to the $2.4 billion certificated cost estimate, plus the Cost Cap Exceptions as well as any other costs permitted or determined to be excluded from the $2.88 billion cost cap by the Mississippi PSC. Mississippi Power intends to finance (1) prudently-incurred costs in excess of the certificated cost estimate and up to the $2.88 billion cost cap, net of the DOE Grants and the Cost Cap Exceptions, (2) the accrued AFUDC, and (3) exceptions not provided for in the Seven-Year Rate Plan (discussed below) through securitization as provided in State of Mississippi legislation. The rate recovery necessary to recover the annual costs of securitization is expected to be filed and become effective after the Kemper IGCC is placed in service and following completion of the Mississippi PSC's final prudence review of costs for the Kemper IGCC.

Under the terms of the Settlement Agreement, Mississippi Power and the Mississippi PSC agreed to follow certain regulatory procedures and schedules for resolving the cost recovery matters related to the Kemper IGCC. These procedures and schedules include the following: (1) Mississippi Power's filing on January 25, 2013 of a new request to increase retail rates in 2013 by $172 million annually, based on projected investment for 2013, to be recorded to a regulatory liability to be used to mitigate rate impacts when the Kemper IGCC is placed in service; (2) the Mississippi PSC's decision on that matter on March 5, 2013 as described below; (3) Mississippi Power's collaboration with the MPUS to file with the Mississippi PSC within three months of the Settlement Agreement a rate recovery plan for the Kemper IGCC for the first seven years of its operation, along with a proposed revenue requirement under such plan for 2014 through 2020 (Seven-Year Rate Plan) (which was made on February 26, 2013 and updated on March 22, 2013 as described below); (4) the Mississippi PSC's decision on the Seven-Year Rate Plan within four months of that filing (which is now expected to occur in the fall of 2013); (5) Mississippi Power's agreement to limit the portion of prudently-incurred Kemper IGCC costs to be included in rate base to the $2.4 billion certificated cost estimate, plus the Cost Cap Exceptions, excluding AFUDC, provided that this limitation will not prevent Mississippi Power from securing alternate financing to recover any prudently-incurred Kemper IGCC costs, including plant costs above the $2.4 billion certificated cost estimate and AFUDC, not otherwise recovered in

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any Mississippi PSC rate proceeding contemplated by the Settlement Agreement; and (6) the Mississippi PSC's completion of its prudence review of the Kemper IGCC costs incurred through 2012 within six months of the Settlement Agreement, an additional prudence review upon considering the Seven-Year Rate Plan for costs incurred through the most recent reporting period, and a final prudence review of the remaining project costs within six months of the Kemper IGCC's in-service date. The Settlement Agreement provides that Mississippi Power may terminate the agreement if certain conditions are not met, if Mississippi Power is unable to secure alternate financing for any prudently-incurred Kemper IGCC costs not otherwise recovered in any Mississippi PSC rate proceeding contemplated by the Settlement Agreement, or if the Mississippi PSC fails to comply with the requirements of the Settlement Agreement. Legislation to authorize a multi-year rate plan and legislation to provide for alternate financing through securitization was enacted into law on February 26, 2013. Mississippi Power is currently working with the Mississippi PSC and the MPUS to implement the procedural schedules set forth in the Settlement Agreement and variations to the schedule are likely.

On March 5, 2013, the Mississippi PSC issued an order (2013 Kemper IGCC Order) approving a 15% increase in retail rates effective on March 19, 2013, and an additional 3% increase in retail rates effective January 1, 2014, which collectively are designed to collect $156 million annually beginning in 2014. All amounts collected through April 2014, which are expected to total $126 million, will be recorded as a regulatory liability to be used to mitigate rate impacts beginning in May 2014 when the Kemper IGCC is expected to be placed in service. On March 21, 2013, a legal challenge to the 2013 Kemper IGCC Order was filed with the Mississippi Supreme Court.

Because the 2013 Kemper IGCC Order did not provide for the inclusion of CWIP in rate base as permitted by the Baseload Act described below, Mississippi Power continues to record AFUDC on the Kemper IGCC during the construction period. Mississippi Power will not record AFUDC on any additional costs of the Kemper IGCC that exceed the $2.88 billion cost cap, except for Cost Cap Exception amounts. Mississippi Power's rate plans filed pursuant to the Settlement Agreement contemplate the continued accrual of AFUDC through the May 2014 expected in-service date.

On March 22, 2013, Mississippi Power, in compliance with the 2013 Kemper IGCC Order, filed a revision to the Seven-Year Rate Plan with the Mississippi PSC for the Kemper IGCC for 2014 through 2020, the first seven years of operation of the Kemper IGCC. The Seven-Year Rate Plan, which contemplates Mississippi Power's sale of a 15% undivided ownership interest in the Kemper IGCC, proposes recovery of an annual revenue requirement of approximately $156 million of Kemper IGCC-related operational costs and rate base amounts, including plant costs equal to the $2.4 billion certificated cost estimate. The 2013 Kemper IGCC Order, which increased rates beginning on March 19, 2013, is integral to the Seven-Year Rate Plan, which contemplates amortization of the April 2014 regulatory liability balance to be used to mitigate rate impacts from the expected in-service date of May 2014 through 2020, based on a fixed amortization schedule that requires approval by the Mississippi PSC. Under the Seven-Year Rate Plan filing, Mississippi Power proposes annual rate recovery to remain the same from 2014 through 2020. While it is the intent of Mississippi Power for the actual revenue requirement to equal the proposed revenue requirement, Mississippi Power proposes that the annual differences through 2020 for certain items contemplated in the Seven-Year Rate Plan will be deferred, subject to accrual of carrying costs, and the cumulative balance will be reviewed at the end of the term of the Settlement Agreement by the Mississippi PSC to determine the disposition of any potential remaining deferred balance.

The revenue requirements set forth in Mississippi Power's Seven-Year Rate Plan described above assume, among other things, the Kemper IGCC will be placed in service in May 2014, the sale of a 15% undivided interest in the Kemper IGCC to SMEPA will be completed as described herein, Mississippi Power's receipt of the benefits relating to tax credits described herein, and recovery of the Cost Cap Exceptions described herein.

The ultimate outcome of these matters, including the determinations of prudency and the specific manner of recovery of costs relating to the Kemper IGCC, is subject to further regulatory actions and cannot be determined at this time.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Proposed Sale of Undivided Interest to SMEPA

In 2010, Mississippi Power and SMEPA entered into an asset purchase agreement whereby SMEPA agreed to purchase a 17.5% undivided interest in the Kemper IGCC. In February 2012, the Mississippi PSC approved the sale and transfer of 17.5% of the Kemper IGCC to SMEPA. In June 2012, Mississippi Power and SMEPA signed an amendment to the asset purchase agreement whereby SMEPA extended its option to purchase until December 31, 2012, and reduced its purchase commitment percentage from a 17.5% to a 15% undivided interest in the Kemper IGCC, subject to approval by the Mississippi PSC. On December 31, 2012, Mississippi Power and SMEPA agreed to extend SMEPA's option to purchase through December 31, 2013.

The closing of this transaction is conditioned upon execution of a joint ownership and operating agreement, receipt of all construction permits, appropriate regulatory approvals, financing, and other conditions. In September 2012, SMEPA received a conditional loan commitment from Rural Utilities Service to provide funding for SMEPA's undivided interest in the Kemper IGCC.

In March 2012, Mississippi Power received a $150 million interest-bearing refundable deposit from SMEPA to be applied to the purchase. While the expectation is that the amount will be applied to the purchase price at closing, Mississippi Power would be required to refund the deposit upon the termination of the asset purchase agreement, within 60 days of a request by SMEPA for a full or partial refund, or within 15 days at SMEPA's discretion in the event that Mississippi Power is assigned a senior unsecured credit rating of BBB+ or lower by S&P or Baa1 or lower by Moody's or ceases to be rated by either of these rating agencies. Given the interest-bearing nature of the deposit and SMEPA's ability to request a refund, the deposit has been presented as a current liability in Southern Company's and Mississippi Power's Condensed Balance Sheets herein and as financing proceeds in Southern Company's and Mississippi Power's Condensed Statements of Cash Flows herein.

The ultimate outcome of these matters cannot be determined at this time.

Baseload Act

In 2008, the Baseload Act was signed by the Governor of Mississippi and is designed to enhance the Mississippi PSC's authority to facilitate development and construction of base load generation in the State of Mississippi. The Baseload Act authorizes, but does not require, the Mississippi PSC to adopt a cost recovery mechanism that includes in retail base rates, prior to and during construction, all or a portion of the prudently-incurred pre-construction and construction costs incurred by a utility in constructing a base load electric generating plant. Prior to the passage of the Baseload Act, such costs would traditionally be recovered only after the plant was placed in service. The Baseload Act also provides for periodic prudence reviews by the Mississippi PSC and prohibits the cancellation of any such generating plant without the approval of the Mississippi PSC. In the event of cancellation of the construction of the plant without approval of the Mississippi PSC, the Baseload Act authorizes the Mississippi PSC to make a public interest determination as to whether and to what extent the utility will be afforded rate recovery for costs incurred in connection with such cancelled generating plant. There are legal challenges to the constitutionality of the Baseload Act currently pending before the Mississippi Supreme Court. The ultimate outcome of the legal challenges to this legislation cannot be determined at this time. See "Rate Recovery of Kemper IGCC Costs" herein for additional information.

Tax Incentives

The IRS has allocated $133 million (Phase I) and $279 million (Phase II) of Internal Revenue Code Section 48A tax credits to Mississippi Power in connection with the Kemper IGCC. Mississippi Power's utilization of Phase I and Phase II credits is dependent upon meeting the IRS certification requirements, including an in-service date no later than May 11, 2014 for the Phase I credits and April 19, 2016 for the Phase II credits. In order to remain eligible for the Phase II credits, Mississippi Power plans to capture and sequester (via enhanced oil recovery) at least 65%of the CO₂ produced by the Kemper IGCC during operations in accordance with the rules for Section 48A investment tax credits. Through March 31, 2013, Mississippi Power had received or accrued tax benefits totaling $412 million for these tax credits, which will be amortized as a reduction to depreciation and amortization over the life of the Kemper IGCC. As a result of bonus tax depreciation on certain assets placed, or to be placed, in service in 2012 and 2013, and the subsequent reduction in federal taxable income, Mississippi Power estimates that it will not be able to

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

utilize $178.8 million of these tax credits until after March 31, 2014. IRS guidelines allow these unused tax credits to be carried forward for 20 years from the date received, if not utilized before then. In October 2012, Mississippi Power filed an application with the DOE for certification of the Kemper IGCC for additional tax credits under the Internal Revenue Code Section 48A (Phase III).

A portion of the tax credits realized by Mississippi Power may be subject to recapture upon successful completion of SMEPA's purchase of an undivided interest in the Kemper IGCC as described above. In addition, all or a portion of the tax credits will be subject to recapture if Mississippi Power fails to satisfy the in-service date requirements and CO₂ capture requirements described above.

On January 2, 2013, the American Taxpayer Relief Act of 2012 (ATRA) was signed into law. The ATRA retroactively extended several tax credits through 2013 and 50% bonus depreciation for property to be placed in service in 2013 (and for certain long-term production-period projects to be placed in service in 2014), which is expected to apply to the Kemper IGCC.

The ultimate outcome of these matters cannot be determined at this time.

Other Matters

On April 4, 2013, an explosion occurred at Plant Bowen Unit 2 that resulted in substantial damage to the Plant Bowen Unit 2 generator, Plant Bowen's Units 1 and 2 control room and surrounding areas, as well as Plant Bowen's switchyard. The extent of the damage sustained by Plant Bowen Unit 1 is unknown. Plant Bowen Units 1 and 2 (approximately 1,400 MWs) remain offline, pending assessment of the damage and completion of repairs. Georgia Power expects that any material repair costs related to the damage will be covered by property insurance. The ultimate outcome of this matter cannot be determined at this time.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(C) FAIR VALUE MEASUREMENTS

As of March 31, 2013, assets and liabilities measured at fair value on a recurring basis during the period, together with the level of the fair value hierarchy in which they fall, were as follows:

	Fair Value Measurements Using
As of March 31, 2013:	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in millions)
Southern Company
Assets:
Energy-related derivatives	$	—	$	50	$	—	$	50
Interest rate derivatives	—		10		—		10
Nuclear decommissioning trusts(a)	526		838		—		1,364
Cash equivalents	223		—		—		223
Other investments	9		—		15		24
Total	$	758	$	898	$	15	$	1,671
Liabilities:
Energy-related derivatives	$	—	$	63	$	—	$	63
Alabama Power
Assets:
Energy-related derivatives	$	—	$	12	$	—	$	12
Nuclear decommissioning trusts:(b)
Domestic equity	320		69		—		389
Foreign equity	30		56		—		86
U.S. Treasury and government agency securities	—		29		—		29
Corporate bonds	—		101		—		101
Mortgage and asset backed securities	—		25		—		25
Other	—		10		—		10
Total	$	350	$	302	$	—	$	652
Liabilities:
Energy-related derivatives	$	—	$	7	$	—	$	7

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

	Fair Value Measurements Using
As of March 31, 2013:	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in millions)
Georgia Power
Assets:
Energy-related derivatives	$	—	$	13	$	—	$	13
Nuclear decommissioning trusts:(b) (c)
Domestic equity	176		1		—		177
Foreign equity	—		120		—		120
U.S. Treasury and government agency securities	—		130		—		130
Municipal bonds	—		28		—		28
Corporate bonds	—		130		—		130
Mortgage and asset backed securities	—		121		—		121
Other	—		18		—		18
Cash equivalents	27		—		—		27
Total	$	203	$	561	$	—	$	764
Liabilities:
Energy-related derivatives	$	—	$	28	$	—	$	28
Gulf Power
Assets:
Energy-related derivatives	$	—	$	14	$	—	$	14
Cash equivalents	16		—		—		16
Total	$	16	$	14	$	—	$	30
Liabilities:
Energy-related derivatives	$	—	$	16	$	—	$	16
Mississippi Power
Assets:
Energy-related derivatives	$	—	$	6	$	—	$	6
Cash equivalents	122		—		—		122
Total	$	122	$	6	$	—	$	128
Liabilities:
Energy-related derivatives	$	—	$	11	$	—	$	11
Southern Power
Assets:
Energy-related derivatives	$	—	$	5	$	—	$	5
Cash equivalents	27		—		—		27
Total	$	27	$	5	$	—	$	32
Liabilities:
Energy-related derivatives	$	—	$	1	$	—	$	1

(a) For additional detail, see the nuclear decommissioning trusts sections for Alabama Power and Georgia Power in this table.

(b) Excludes receivables related to investment income, pending investment sales, and payables related to pending investment purchases.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(c) Includes the investment securities pledged to creditors and cash collateral received and excludes payables related to the securities lending program. As of March 31, 2013, approximately $68 million of the fair market value of Georgia Power's nuclear decommissioning trust funds' securities were on loan and pledged to creditors under the funds' managers' securities lending program.

Valuation Methodologies

The energy-related derivatives primarily consist of over-the-counter financial products for natural gas and physical power products including, from time to time, basis swaps. These are standard products used within the energy industry and are valued using the market approach. The inputs used are mainly from observable market sources, such as forward natural gas prices, power prices, implied volatility, and LIBOR interest rates. Interest rate and foreign currency derivatives are also standard over-the-counter financial products valued using the market approach. Inputs for interest rate derivatives include LIBOR interest rates, interest rate futures contracts, and occasionally implied volatility of interest rate options. Inputs for foreign currency derivatives are from observable market sources. See Note (H) herein for additional information on how these derivatives are used.

"Other investments" include investments in funds that are valued using the market approach and income approach. Securities that are traded in the open market are valued at the closing price on their principal exchange as of the measurement date. Discounts are applied in accordance with GAAP when certain trading restrictions exist. For investments that are not traded in the open market, the price paid will have been determined based on market factors including comparable multiples and the expectations regarding cash flows and business plan execution. As the investments mature or if market conditions change materially, further analysis of the fair market value of the investment is performed. This analysis is typically based on a metric, such as multiple of earnings, revenues, earnings before interest and income taxes, or earnings adjusted for certain cash changes. These multiples are based on comparable multiples for publicly traded companies or other relevant prior transactions.

For fair value measurements of investments within the nuclear decommissioning trusts and rabbi trust funds, specifically the fixed income assets using significant other observable inputs and unobservable inputs, the primary valuation technique used is the market approach. External pricing vendors are designated for each of the asset classes in the nuclear decommissioning trusts and rabbi trust funds with each security discriminately assigned a primary pricing source, based on similar characteristics.

A market price secured from the primary source vendor is then evaluated by management in its valuation of the assets within the trusts. As a general approach, market pricing vendors gather market data (including indices and market research reports) and integrate relative credit information, observed market movements, and sector news into proprietary pricing models, pricing systems, and mathematical tools. Dealer quotes and other market information including live trading levels and pricing analysts' judgment are also obtained when available.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

As of March 31, 2013, the fair value measurements of investments calculated at net asset value per share (or its equivalent), as well as the nature and risks of those investments, were as follows:

As of March 31, 2013:	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
	(in millions)
Southern Company
Nuclear decommissioning trusts:
Foreign equity funds	$	120	None	Monthly	5 days
Corporate bonds - commingled funds	7		None	Daily	1 to 3 days
Other - commingled funds	74		None	Daily/Monthly	Daily/7 days
Trust-owned life insurance	100		None	Daily	15 days
Cash equivalents:
Money market funds	223		None	Daily	Not applicable
Alabama Power
Nuclear decommissioning trusts:
Other - commingled funds	56		None	Daily/Monthly	Daily/7 days
Trust-owned life insurance	100		None	Daily	15 days
Georgia Power
Nuclear decommissioning trusts:
Foreign equity funds	120		None	Monthly	5 days
Corporate bonds - commingled funds	7		None	Daily	Not applicable
Other - commingled funds	18		None	Daily	Not applicable
Cash equivalents:
Money market funds	27		None	Daily	Not applicable
Gulf Power
Cash equivalents:
Money market funds	16		None	Daily	Not applicable
Mississippi Power
Cash equivalents:
Money market funds	122		None	Daily	Not applicable
Southern Power
Cash equivalents:
Money market funds	27		None	Daily	Not applicable

The NRC requires licensees of commissioned nuclear power reactors to establish a plan for providing reasonable assurance of funds for future decommissioning. Alabama Power and Georgia Power have external trust funds (the Funds) to comply with the NRC's regulations. The foreign equity fund in Georgia Power's nuclear decommissioning trusts seeks to provide long-term capital appreciation. In pursuing this investment objective, the foreign equity fund primarily invests in a diversified portfolio of equity securities of foreign companies, including those in emerging markets. These equity securities may include, but are not limited to, common stocks, preferred stocks, real estate investment trusts, convertible securities and depository receipts, including American depositary receipts, European depositary receipts and global depository receipts, and rights and warrants to buy common stocks. Georgia Power may withdraw all or a portion of its investment on the last business day of each month subject to a minimum withdrawal of $1 million, provided that a minimum investment of $10 million remains. If notices of withdrawal exceed 20% of the aggregate value of the foreign equity fund, then the foreign equity fund's board may refuse to permit the withdrawal of all such investments and may scale down the amounts to be withdrawn pro rata and may further determine that any withdrawal that has been postponed will have priority on the subsequent withdrawal date.

The commingled funds in Georgia Power's nuclear decommissioning trusts are invested primarily in a diversified portfolio, including, but not limited to, commercial paper, notes, repurchase agreements, and other evidences of

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

indebtedness with a maturity not exceeding 13 months from the date of purchase. The commingled funds will, however, generally maintain a dollar-weighted average portfolio maturity of 90 days or less. The assets may be longer term investment grade fixed income obligations with maturity shortening provisions. The primary objective for the commingled funds is a high level of current income consistent with stability of principal and liquidity. The commingled funds included with corporate bonds represent the investment of cash collateral received under the Funds' managers' securities lending program that can only be sold upon the return of the loaned securities. See Note 1 to the financial statements of Southern Company and Georgia Power under "Nuclear Decommissioning" in Item 8 of the Form 10-K for additional information.

Alabama Power's nuclear decommissioning trust includes investments in Trust-Owned Life Insurance (TOLI). The taxable nuclear decommissioning trust invests in the TOLI in order to minimize the impact of taxes on the portfolio and can draw on the value of the TOLI through death proceeds, loans against the cash surrender value, and/or the cash surrender value, subject to legal restrictions. The amounts reported in the table above reflect the fair value of investments the insurer has made in relation to the TOLI agreements. The nuclear decommissioning trust does not own the underlying investments, but the fair value of the investments approximates the cash surrender value of the TOLI policies. The investments made by the insurer are in commingled funds. The commingled funds primarily include investments in domestic and international equity securities and predominantly high-quality fixed income securities. These fixed income securities may include U.S. Treasury and government agency fixed income securities, non-U.S. government and agency fixed income securities, domestic and foreign corporate fixed income securities, and, to some degree, mortgage and asset backed securities. The passively managed funds seek to replicate the performance of a related index. The actively managed funds seek to exceed the performance of a related index through security analysis and selection.

Southern Company, Alabama Power, and Georgia Power continue to elect the option to fair value investment securities held in the nuclear decommissioning trust funds. For the three months ended March 31, 2013, the fair value of the funds, including reinvested interest and dividends reduced by the funds' expenses, increased by $59 million at Southern Company. Alabama Power recorded an increase in fair value of $38 million as an increase in regulatory liabilities. Georgia Power recorded an increase in fair value of $21 million as a reduction of its regulatory asset related to its asset retirement obligations.

The money market funds are short-term investments of excess funds in various money market mutual funds, which are portfolios of short-term debt securities. The money market funds are regulated by the SEC and typically receive the highest rating from credit rating agencies. Regulatory and rating agency requirements for money market funds include minimum credit ratings and maximum maturities for individual securities and a maximum weighted average portfolio maturity. Redemptions are available on a same day basis up to the full amount of the investment in the money market funds.

As of March 31, 2013, other financial instruments for which the carrying amount did not equal fair value were as follows: 

	Carrying Amount		Fair Value
	(in millions)
Long-term debt:
Southern Company	$	21,915	$	23,644
Alabama Power	$	6,179	$	6,853
Georgia Power	$	9,639	$	10,316
Gulf Power	$	1,246	$	1,353
Mississippi Power	$	2,211	$	2,294
Southern Power	$	1,308	$	1,448

The fair values are determined using Level 2 measurements and are based on quoted market prices for the same or similar issues or on the current rates offered to Southern Company, Alabama Power, Georgia Power, Gulf Power, Mississippi Power, and Southern Power.

147

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(D) STOCKHOLDERS' EQUITY

Earnings per Share

For Southern Company, the only difference in computing basic and diluted earnings per share is attributable to awards outstanding under the stock option and performance share plans. See Note 8 to the financial statements of Southern Company in Item 8 of the Form 10-K for information on the stock option and performance share plans. The effects of both stock options and performance share award units were determined using the treasury stock method. Shares used to compute diluted earnings per share were as follows:

	Three Months Ended March 31, 2013	Three Months Ended March 31, 2012
	(in millions)
As reported shares	870	868
Effect of options and performance share award units	5	9
Diluted shares	875	877

Stock options and performance share award units that were not included in the diluted earnings per share calculation because they were anti-dilutive were immaterial for the three months ended March 31, 2013 and 2012.

Changes in Stockholders' Equity

The following table presents year-to-date changes in stockholders' equity of Southern Company:

	Number of Common Shares			Common Stockholders' Equity			Preferred and Preference Stock of Subsidiaries		Total Stockholders' Equity
	Issued	Treasury
	(in thousands)						(in millions)
Balance at December 31, 2012	877,803	(10,035	)	$	18,297		$	707	$	19,004
Net income after dividends on preferred and preference stock	—	—		81			—		81
Other comprehensive income (loss)	—	—		4			—		4
Stock issued	2,638	—		99			—		99
Stock repurchased, at cost	—	—		(18		)	—		(18		)
Cash dividends on common stock	—	—		(426		)	—		(426		)
Other	—	(15	)	—			—		—
Balance at March 31, 2013	880,441	(10,050	)	$	18,037		$	707	$	18,744
Balance at December 31, 2011	865,664	(539	)	$	17,578		$	707	$	18,285
Net income after dividends on preferred and preference stock	—	—		368			—		368
Other comprehensive income (loss)	—	—		6			—		6
Stock issued	3,571	—		157			—		157
Cash dividends on common stock	—	—		(410		)	—		(410		)
Other	—	(6	)	—			—		—
Balance at March 31, 2012	869,235	(545	)	$	17,699		$	707	$	18,406

In July 2012, Southern Company announced a program to repurchase shares to partially offset the incremental shares issued under its employee and director stock plans. As of December 31, 2012, Southern Company had repurchased a total of approximately 9 million shares at a total cost of $430 million. There were no repurchases

148

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

under this program in the first quarter 2013. Pursuant to approval by the Southern Company Board of Directors, Southern Company may repurchase shares through open market purchases or privately negotiated transactions, in accordance with applicable securities laws.

(E) FINANCING

Bank Credit Arrangements

Bank credit arrangements provide liquidity support to the registrants' commercial paper borrowings and the traditional operating companies' variable rate pollution control revenue bonds. See Note 6 to the financial statements of each registrant (other than Mississippi Power) under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note 6 to the financial statements of Mississippi Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K/A for additional information.

The following table outlines the committed credit arrangements by company as of March 31, 2013: 

	Expires(a)												Executable Term Loans				Due Within  One Year
Company	2013		2014		2016		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
	(in millions)								(in millions)				(in millions)				(in millions)
Southern Company	$	—	$	—	$	—	$	1,000	$	1,000	$	1,000	$	—	$	—	$	—	$	—
Alabama Power	156		151		—		1,000		1,307		1,307		56		—		56		102
Georgia Power	—		—		150		1,600		1,750		1,740		—		—		—		—
Gulf Power	45		60		165		—		270		270		45		—		45		30
Mississippi Power	110		25		165		—		300		300		25		40		65		70
Southern Power	—		—		—		500		500		500		—		—		—		—
Other	50		—		—		—		50		50		25		—		25		25
Total	$	361	$	236	$	480	$	4,100	$	5,177	$	5,167	$	151	$	40	$	191	$	227

(a) No credit arrangements expire in 2015 or 2017.

In February 2013, Southern Company, Alabama Power, Georgia Power, and Southern Power each amended their multi-year credit arrangements, which extended the maturity dates from 2016 to 2018.

In March 2013, Alabama Power amended a $200 million credit arrangement, which extended the maturity date from 2014 to 2018. In March 2013, Gulf Power also amended a $35 million credit arrangement, which reduced the amount to $30 million and extended the maturity date from 2013 to 2014. In addition, in March 2013, Georgia Power, Gulf Power, and Mississippi Power each amended certain of their credit arrangements, which extended the maturity dates from 2014 to 2016 and, in the case of Mississippi Power, also revised the definition of debt to exclude securitized debt relating to the Kemper IGCC for purposes of calculating the debt covenant under these credit arrangements. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for information regarding legislation related to the securitization of certain costs of the Kemper IGCC.

Subsequent to March 31, 2013, Gulf Power entered into a new credit arrangement for $5 million with a maturity date of 2014.

Also subsequent to March 31, 2013, SEGCO entered into two new $25 million credit arrangements with maturity dates of 2014.

Most of these arrangements contain covenants that limit debt levels and typically contain cross default provisions that are restricted only to the indebtedness of the individual company. Southern Company and its subsidiaries are currently in compliance with all such covenants.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(F) RETIREMENT BENEFITS

Southern Company has a defined benefit, trusteed, pension plan covering substantially all employees. The qualified pension plan is funded in accordance with requirements of the Employee Retirement Income Security Act of 1974, as amended. No mandatory contributions to the qualified pension plan are anticipated for the year ending December 31, 2013. Southern Company also provides certain defined benefit pension plans for a selected group of management and highly compensated employees. Benefits under these non-qualified pension plans are funded on a cash basis. In addition, Southern Company provides certain medical care and life insurance benefits for retired employees through other postretirement benefit plans. The traditional operating companies fund related other postretirement trusts to the extent required by their respective regulatory commissions.

See Note 2 to the financial statements of Southern Company, Alabama Power, Georgia Power, and Gulf Power in Item 8 of the Form 10-K and Note 2 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A for additional information.

Components of the net periodic benefit costs for the three months ended March 31, 2013 and 2012 were as follows:

Pension Plans	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi   Power
	(in millions)
Three Months Ended March 31, 2013
Service cost	$	58		$	13		$	17		$	3		$	3
Interest cost	97			23			34			4			5
Expected return on plan assets	(151		)	(39		)	(53		)	(6		)	(7		)
Amortization:
Prior service costs	7			2			3			—			—
Net (gain)/loss	50			13			19			2			2
Net cost	$	61		$	12		$	20		$	3		$	3
Three Months Ended March 31, 2012
Service cost	$	50		$	11		$	15		$	2		$	2
Interest cost	98			23			35			4			5
Expected return on plan assets	(145		)	(40		)	(55		)	(6		)	(6		)
Amortization:
Prior service costs	7			2			3			—			—
Net (gain)/loss	24			6			8			1			1
Net cost	$	34		$	2		$	6		$	1		$	2

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Postretirement Benefits	Southern Company			Alabama Power			Georgia Power			Gulf Power		Mississippi Power
	(in millions)
Three Months Ended March 31, 2013
Service cost	$	6		$	2		$	2		$	—	$	—
Interest cost	19			5			8			1		1
Expected return on plan assets	(14		)	(6		)	(6		)	—		—
Amortization:
Transition obligation	1			—			1			—		—
Prior service costs	1			1			—			—		—
Net (gain)/loss	3			—			2			—		—
Net cost	$	16		$	2		$	7		$	1	$	1
Three Months Ended March 31, 2012
Service cost	$	5		$	1		$	1		$	—	$	—
Interest cost	21			5			9			1		1
Expected return on plan assets	(15		)	(6		)	(7		)	—		—
Amortization:
Transition obligation	2			1			2			—		—
Prior service costs	1			1			—			—		—
Net (gain)/loss	2			—			1			—		—
Net cost	$	16		$	2		$	6		$	1	$	1

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(G) EFFECTIVE TAX RATE AND UNRECOGNIZED TAX BENEFITS

Effective Tax Rate

See Note 5 to the financial statements of each registrant (other than Mississippi Power) in Item 8 of the Form 10-K and Note 5 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A for information on the effective income tax rate.

Southern Company

Southern Company's effective tax rate is typically lower than the statutory rate due to its employee stock plans' dividend deduction and non-taxable AFUDC equity.

Southern Company's effective tax rate was 24.5% for the three months ended March 31, 2013 compared to 34.2% for the corresponding period in 2012. The American Jobs Creation Act of 2004 created a tax deduction for a portion of income attributable to U.S. production activities as defined in Section 199 of the Internal Revenue Code (production activities deduction). The decrease was primarily due to an increase in non-taxable AFUDC equity primarily related to Mississippi Power's construction of the Kemper IGCC combined with lower net income. The decrease was partially offset by the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the methodology used to calculate the production activities deduction.

Alabama Power

Alabama Power's effective tax rate was 39.2% for the three months ended March 31, 2013 compared to 38.3% for the corresponding period in 2012. The increase was primarily due to the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction.

Georgia Power

Georgia Power's effective tax rate was 38.1% for the three months ended March 31, 2013 compared to 34.9% for the corresponding period in 2012. The increase was primarily due to an increase in non-deductible book depreciation, the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction, and a decrease in non-taxable AFUDC equity.

Gulf Power

Gulf Power's effective tax rate was 37.6% for the three months ended March 31, 2013 compared to 34.6% for the corresponding period in 2012. The increase was primarily due to the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction.

Mississippi Power

Mississippi Power's effective tax rate was (40.8)% for the three months ended March 31, 2013 compared to 24.7% for the corresponding period in 2012. The decrease was primarily due to a net loss for the current period and an increase in non-taxable AFUDC equity related to construction of the Kemper IGCC.

Southern Power

Southern Power's effective tax rate was 33.5% for the three months ended March 31, 2013 compared to 31.3% for the corresponding period in 2012. The increase was primarily due to the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Unrecognized Tax Benefits

Changes during 2013 for unrecognized tax benefits were as follows:

	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern Power
	(in millions)
Unrecognized tax benefits as of December 31, 2012	$	70	$	31	$	23	$	5	$	6	$	3
Tax positions from current periods	3		1		1		—		—		—
Balance as of March 31, 2013	$	73	$	32	$	24	$	5	$	6	$	3

The tax positions from current periods relate primarily to the tax accounting method change for repairs-generation assets. See "Tax Method of Accounting for Property Related Expenditures" herein for additional information.

The impact on the effective tax rate, if recognized, was as follows:

	As of March 31, 2013			As of December 31, 2012
		Southern Company
	(in millions)
Tax positions impacting the effective tax rate		$	5	$	5
Tax positions not impacting the effective tax rate		68		65
Balance of unrecognized tax benefits		$	73	$	70

The tax positions impacting the effective tax rate primarily relate to state income tax credits. The tax positions not impacting the effective tax rate relate to the timing difference associated with the tax accounting method change for repairs-generation assets. See "Tax Method of Accounting for Property Related Expenditures" herein for additional information. These amounts are presented on a gross basis without considering the related federal or state income tax impact.

All of the registrants classify interest on tax uncertainties as interest expense. Accrued interest for unrecognized tax benefits at March 31, 2013 and December 31, 2012 was not material.

None of the registrants accrued any penalties on uncertain tax positions.

It is reasonably possible that the amount of the unrecognized tax benefits associated with a majority of the registrants' unrecognized tax positions will significantly increase or decrease within 12 months. The resolution of the tax accounting method change for repairs-generation assets, as well as the conclusion or settlement of state audits, could impact the balances significantly. At this time, an estimate of the range of reasonably possible outcomes cannot be determined.

Tax Method of Accounting for Property Related Expenditures

Southern Company submitted a tax accounting method change related to the deductibility of repair costs associated with its subsidiaries' generation, transmission, and distribution systems effective for the 2009 consolidated federal income tax return in 2010. In August 2011, the IRS issued a revenue procedure, which provides a safe harbor method of accounting that taxpayers may use to determine repair costs for transmission and distribution property. Consequently, Southern Company incorporated into its federal income tax returns changes that conform to the new regulations and reversed all unrecognized tax positions related to transmission and distribution property.

In December 2011, the IRS published regulations on the deduction and capitalization of expenditures related to tangible property that generally apply for tax years beginning on or after January 1, 2014. The utility industry anticipates more detailed guidance concerning these regulations. Additionally, on April 30, 2013, the IRS issued

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Revenue Procedure 2013-24, which provides guidance for taxpayers related to the deductibility of repair costs associated with generation assets. Southern Company is currently reviewing this new guidance. Due to uncertainty regarding the ultimate resolution of the repair costs for generation assets, an unrecognized tax position was recorded for the tax accounting method change for repairs-generation assets. The ultimate outcome of these matters cannot be determined at this time; however, implementing these regulations is not expected to have a material impact on net income.

(H) DERIVATIVES

Southern Company, the traditional operating companies, and Southern Power are exposed to market risks, primarily commodity price risk, interest rate risk, and occasionally foreign currency risk. To manage the volatility attributable to these exposures, each company nets its exposures, where possible, to take advantage of natural offsets and enters into various derivative transactions for the remaining exposures pursuant to each company's policies in areas such as counterparty exposure and risk management practices. Each company's policy is that derivatives are to be used primarily for hedging purposes and mandates strict adherence to all applicable risk management policies. Derivative positions are monitored using techniques including, but not limited to, market valuation, value at risk, stress testing, and sensitivity analysis. Derivative instruments are recognized at fair value in the balance sheets as either assets or liabilities and are presented on a gross basis. In the statements of cash flows, the cash impacts of settled energy-related and interest rate derivatives are recorded as operating activities and the cash impacts of settled foreign currency derivatives are recorded as investing activities.

Energy-Related Derivatives

The traditional operating companies and Southern Power enter into energy-related derivatives to hedge exposures to electricity, gas, and other fuel price changes. However, due to cost-based rate regulations and other various cost recovery mechanisms, the traditional operating companies have limited exposure to market volatility in commodity fuel prices and prices of electricity. Each of the traditional operating companies manages fuel-hedging programs, implemented per the guidelines of their respective state PSCs, through the use of financial derivative contracts, which is expected to continue to mitigate price volatility. Southern Power has limited exposure to market volatility in commodity fuel prices and prices of electricity because its long-term sales contracts shift substantially all fuel cost responsibility to the purchaser. However, Southern Power has been and may continue to be exposed to market volatility in energy-related commodity prices as a result of sales of uncontracted generating capacity.

To mitigate residual risks relative to movements in electricity prices, the traditional operating companies and Southern Power may enter into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market. To mitigate residual risks relative to movements in gas prices, the traditional operating companies and Southern Power may enter into fixed-price contracts for natural gas purchases; however, a significant portion of contracts are priced at market.

Energy-related derivative contracts are accounted for under one of three methods:

• Regulatory Hedges — Energy-related derivative contracts which are designated as regulatory hedges relate primarily to the traditional operating companies' fuel hedging programs, where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as the underlying fuel is used in operations and ultimately recovered through the respective fuel cost recovery clauses.

• Cash Flow Hedges — Gains and losses on energy-related derivatives designated as cash flow hedges which are mainly used to hedge anticipated purchases and sales and are initially deferred in OCI before being recognized in the statements of income in the same period as the hedged transactions are reflected in earnings.

• Not Designated — Gains and losses on energy-related derivative contracts that are not designated or fail to qualify as hedges are recognized in the statements of income as incurred.

Some energy-related derivative contracts require physical delivery as opposed to financial settlement, and this type of derivative is both common and prevalent within the electric industry. When an energy-related derivative contract

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

is settled physically, any cumulative unrealized gain or loss is reversed and the contract price is recognized in the respective line item representing the actual price of the underlying goods being delivered.

At March 31, 2013, the net volume of energy-related derivative contracts for natural gas positions for the Southern Company system, together with the longest hedge date over which the respective entity is hedging its exposure to the variability in future cash flows for forecasted transactions and the longest date for derivatives not designated as hedges, were as follows:

	Net Purchased mmBtu	Longest Hedge Date	Longest Non-Hedge Date
	(in millions)
Southern Company	259	2017	2017
Alabama Power	58	2017	—
Georgia Power	90	2017	—
Gulf Power	70	2017	—
Mississippi Power	36	2017	—
Southern Power	5	—	2017

In addition to the volumes discussed in the above table, the traditional operating companies and Southern Power enter into physical natural gas supply contracts that provide the option to sell back excess gas due to operational constraints. The maximum expected volume of natural gas subject to such a feature is 11 million mmBtu for Southern Company, 1 million mmBtu for Alabama Power, 5 million mmBtu for Georgia Power, 1 million mmBtu for Gulf Power, 1 million mmBtu for Mississippi Power, and 3 million mmBtu for Southern Power.

For cash flow hedges, the amounts expected to be reclassified from AOCI to revenue and fuel expense for the next 12-month period ending March 31, 2014 are immaterial for all registrants.

Interest Rate Derivatives

Southern Company and certain subsidiaries may also enter into interest rate derivatives to hedge exposure to changes in interest rates. The derivatives employed as hedging instruments are structured to minimize ineffectiveness. Derivatives related to existing variable rate securities or forecasted transactions are accounted for as cash flow hedges where the effective portion of the derivatives' fair value gains or losses is recorded in OCI and is reclassified into earnings at the same time the hedged transactions affect earnings, with any ineffectiveness recorded directly to earnings. Derivatives related to existing fixed rate securities are accounted for as fair value hedges, where the derivatives' fair value gains or losses and hedged items' fair value gains or losses are both recorded directly to earnings, providing an offset, with any difference representing ineffectiveness.

At March 31, 2013, the following interest rate derivatives were outstanding:

	Notional Amount		Interest Rate Received		Interest Rate Paid		Hedge Maturity Date	Fair Value Gain (Loss) March 31, 2013
	(in millions)							(in millions)
Fair value hedges of existing debt
Southern Company	$	350	4.15	%	3-month LIBOR  + 1.96%	(a)	May 2014	$	10

(a) Weighted average

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

The following table reflects the estimated pre-tax gains (losses) that will be reclassified from AOCI to interest expense for the next 12-month period ending March 31, 2014, together with the longest date that total deferred gains and losses are expected to be amortized into earnings.

Registrant	Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014			Total Deferred Gains (Losses) Amortized  Through
	(in millions)
Southern Company	$	(12	)	2037
Alabama Power	(3		)	2035
Georgia Power	(3		)	2037
Gulf Power	(1		)	2020
Mississippi Power	(1		)	2022
Southern Power	(4		)	2016

Foreign Currency Derivatives

Southern Company and certain subsidiaries may enter into foreign currency derivatives to hedge exposure to changes in foreign currency exchange rates arising from purchases of equipment denominated in a currency other than U.S. dollars. Derivatives related to a firm commitment in a foreign currency transaction are accounted for as fair value hedges where the derivatives' fair value gains or losses and the hedged items' fair value gains or losses are both recorded directly to earnings. Derivatives related to a forecasted transaction are accounted for as a cash flow hedge where the effective portion of the derivatives' fair value gains or losses is recorded in OCI and is reclassified into earnings at the same time the hedged transactions affect earnings. Any ineffectiveness is typically recorded directly to earnings; however, Mississippi Power has regulatory approval allowing it to defer any ineffectiveness associated with firm commitments related to the Kemper IGCC to a regulatory asset. The derivatives employed as hedging instruments are structured to minimize ineffectiveness. At March 31, 2013, the fair value of the foreign currency derivatives outstanding was immaterial.

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Derivative Financial Statement Presentation and Amounts

At March 31, 2013, the fair value of energy-related derivatives and interest rate derivatives was reflected in the balance sheets as follows:

Asset Derivatives at March 31, 2013
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Other current assets	$	25	$	7	$	6	$	9	$	3
Other deferred charges and assets	20		5		7		5		3
Total derivatives designated as hedging instruments for regulatory purposes	$	45	$	12	$	13	$	14	$	6	N/A
Derivatives designated as hedging instruments in cash flow and fair value hedges
Interest rate derivatives:
Other current assets	$	7	$	—	$	—	$	—	$	—	$	—
Other deferred charges and assets	3		—		—		—		—		—
Total derivatives designated as hedging instruments in cash flow and fair value hedges	$	10	$	—	$	—	$	—	$	—	$	—
Derivatives not designated as hedging instruments
Energy-related derivatives:
Assets from risk management activities	$	3	$	—	$	—	$	—	$	—	$	3
Other deferred charges and assets	2		—		—		—		—		2
Total derivatives not designated as hedging instruments	$	5	$	—	$	—	$	—	$	—	$	5
Total asset derivatives	$	60	$	12	$	13	$	14	$	6	$	5

Liability Derivatives at March 31, 2013
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Liabilities from risk management activities	$	36	$	5	$	17	$	8	$	6
Other deferred credits and liabilities	26		2		11		8		5
Total derivatives designated as hedging instruments for regulatory purposes	$	62	$	7	$	28	$	16	$	11	N/A
Derivatives not designated as hedging instruments
Energy-related derivatives:
Liabilities from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Total liability derivatives	$	63	$	7	$	28	$	16	$	11	$	1

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NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

At December 31, 2012, the fair value of energy-related derivatives and interest rate derivatives was reflected in the balance sheets as follows:

Asset Derivatives at December 31, 2012
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Other current assets	$	10	$	2	$	6	$	1	$	1
Other deferred charges and assets	13		3		5		3		2
Total derivatives designated as hedging instruments for regulatory purposes	$	23	$	5	$	11	$	4	$	3	N/A
Derivatives designated as hedging instruments in cash flow and fair value hedges
Interest rate derivatives:
Other current assets	$	7	$	—	$	—	$	—	$	—	$	—
Other deferred charges and assets	3		—		—		—		—		—
Total derivatives designated as hedging instruments in cash flow and fair value hedges	$	10	$	—	$	—	$	—	$	—	$	—
Derivatives not designated as hedging instruments
Energy-related derivatives:
Assets from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Other deferred charges and assets	2		—		—		—		—		2
Total derivatives not designated as hedging instruments	$	3	$	—	$	—	$	—	$	—	$	3
Total asset derivatives	$	36	$	5	$	11	$	4	$	3	$	3

158

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Liability Derivatives at December 31, 2012
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Liabilities from risk management activities	$	74	$	14	$	30	$	17	$	13
Other deferred credits and liabilities	35		4		15		10		6
Total derivatives designated as hedging instruments for regulatory purposes	$	109	$	18	$	45	$	27	$	19	N/A
Derivatives not designated as hedging instruments
Energy-related derivatives:
Liabilities from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Other deferred credits and liabilities	1		—		—		—		—		1
Total derivatives not designated as hedging instruments	$	2	$	—	$	—	$	—	$	—	$	2
Total liability derivatives	$	111	$	18	$	45	$	27	$	19	$	2

All derivative instruments are measured at fair value. See Note (C) herein for additional information.

Balance Sheet Offsetting

The derivative contracts of Southern Company, the traditional operating companies, and Southern Power are not subject to master netting arrangements or similar agreements and are reported gross on each registrant's financial statements. Some of these energy-related and interest rate derivative contracts contain certain provisions that permit intra-contract netting of derivative receivables and payables for routine billing and offsets related to events of default and settlements. Amounts related to energy-related derivative contracts are presented in the following tables. Interest rate derivatives presented in the tables above do not have amounts available for offset and are therefore excluded from the offsetting disclosure tables below.

159

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

Derivative Contracts at March 31, 2013
	Fair Value
	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power			Southern   Power
	(in millions)
Assets
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	50		$	12		$	13		$	14		$	6		$	5
Gross amounts not offset in the Balance Sheet (b)	(39		)	(5		)	(13		)	(10		)	(5		)	(1		)
Net energy-related derivative assets	$	11		$	7		$	—		$	4		$	1		$	4
Liabilities
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	63		$	7		$	28		$	16		$	11		$	1
Gross amounts not offset in the Balance Sheet (b)	(39		)	(5		)	(13		)	(10		)	(5		)	(1		)
Net energy-related derivative liabilities	$	24		$	2		$	15		$	6		$	6		$	—

(a) None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

(b) Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

Derivative Contracts at December 31, 2012
	Fair Value
	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power			Southern   Power
	(in millions)
Assets
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	26		$	5		$	11		$	4		$	3		$	3
Gross amounts not offset in the Balance Sheet (b)	(23		)	(4		)	(11		)	(4		)	(2		)	(1		)
Net energy-related derivative assets	$	3		$	1		$	—		$	—		$	1		$	2
Liabilities
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	111		$	18		$	45		$	27		$	19		$	2
Gross amounts not offset in the Balance Sheet (b)	(23		)	(4		)	(11		)	(4		)	(2		)	(1		)
Net energy-related derivative liabilities	$	88		$	14		$	34		$	23		$	17		$	1

(a) None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

(b) Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

160

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

At March 31, 2013 and December 31, 2012, the pre-tax effects of unrealized derivative gains (losses) arising from energy-related derivative instruments designated as regulatory hedging instruments and deferred on the balance sheets were as follows:

Regulatory Hedge Unrealized Gain (Loss) Recognized on the Balance Sheet at March 31, 2013
Derivative Category and Balance Sheet Location	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power
	(in millions)
Energy-related derivatives:
Other regulatory assets, current	$	(36	)	$	(5	)	$	(17	)	$	(8	)	$	(6	)
Other regulatory assets, deferred	(26		)	(2		)	(11		)	(8		)	(5		)
Other regulatory liabilities, current	25			7			6			9			3
Other regulatory liabilities, deferred	20			5			—			5			3
Other deferred credits and liabilities(a)	—			—			7			—			—
Total energy-related derivative gains (losses)	$	(17	)	$	5		$	(15	)	$	(2	)	$	(5	)

(a) Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities.

Regulatory Hedge Unrealized Gain (Loss) Recognized on the Balance Sheet at December 31, 2012
Derivative Category and Balance Sheet Location	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power
	(in millions)
Energy-related derivatives:
Other regulatory assets, current	$	(74	)	$	(14	)	$	(30	)	$	(17	)	$	(13	)
Other regulatory assets, deferred	(35		)	(4		)	(15		)	(10		)	(6		)
Other regulatory liabilities, current	10			2			6			1			1
Other regulatory liabilities, deferred	13			3			—			3			2
Other deferred credits and liabilities(a)	—			—			5			—			—
Total energy-related derivative gains (losses)	$	(86	)	$	(13	)	$	(34	)	$	(23	)	$	(16	)

(a) Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities.

For the three months ended March 31, 2013 and March 31, 2012, the pre-tax effects of interest rate derivatives designated as fair value hedging instruments on Southern Company's statements of income were immaterial.

For the three months ended March 31, 2013 and March 31, 2012, the pre-tax effects of foreign currency derivatives designated as fair value hedging instruments on Southern Company's and Mississippi Power's statements of income were immaterial and were offset with changes in the fair value of the purchase commitment related to equipment purchases; therefore, there was no impact on Southern Company's or Mississippi Power's statements of income.

161

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

For the three months ended March 31, 2013 and 2012, the pre-tax effects of interest rate derivatives designated as cash flow hedging instruments on the statements of income were as follows:

Derivatives in Cash Flow Hedging Relationships	Gain (Loss) Recognized in OCI on Derivative (Effective Portion)					Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
						Statements of Income Location	Amount
	2013		2012				2013			2012
	(in millions)						(in millions)
Southern Company
Interest rate derivatives	$	—	$	6		Interest expense, net of amounts capitalized	$	(5	)	$	(3	)
Alabama Power
Interest rate derivatives	$	—	$	7		Interest expense, net of amounts capitalized	$	(1	)	$	—
Georgia Power
Interest rate derivatives	$	—	$	—		Interest expense, net of amounts capitalized	$	(1	)	$	(1	)
Mississippi Power
Interest rate derivatives	$	—	$	(1	)	Interest expense, net of amounts capitalized	$	—		$	—
Southern Power
Interest rate derivatives	$	—	$	—		Interest expense, net of amounts capitalized	$	(3	)	$	(2	)

For the three months ended March 31, 2013 and 2012, the pre-tax effects of energy-related derivatives designated as cash flow hedging instruments on the statements of income were immaterial for all registrants.

There was no material ineffectiveness recorded in earnings for any registrant for any period presented.

For Southern Power's energy-related derivatives not designated as hedging instruments, a substantial portion of the pre-tax realized and unrealized gains and losses is associated with hedging fuel price risk of certain PPA customers and has no impact on net income or on fuel expense as presented in Southern Company's and Southern Power's statements of income. As a result, for the three months ended March 31, 2013 and 2012, the pre-tax effects of energy-related derivatives not designated as hedging instruments on Southern Company's and Southern Power's statements of income were immaterial.

For the three months ended March 31, 2013 and March 31, 2012, the pre-tax effects of foreign currency derivatives not designated as hedging instruments were recorded as regulatory assets and liabilities and were immaterial for Southern Company and Mississippi Power.

Contingent Features

The registrants do not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain derivatives that could require collateral, but not accelerated payment, in the event of various credit rating changes of certain Southern Company subsidiaries.

At March 31, 2013, the fair value of derivative liabilities with contingent features, by registrant, was as follows:

	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern Power
					(in millions)
Derivative liabilities	$	1	$	—	$	2	$	—	$	—	$	—

At March 31, 2013, the registrants had no collateral posted with their derivative counterparties. If collateral is required, fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral are not offset against fair value amounts recognized for derivatives executed with the same counterparty. The maximum potential collateral requirements arising from the credit-risk-related contingent features, at a rating below BBB- and/or Baa3, were $1 million for each registrant. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. For the traditional operating companies and Southern Power, included

162

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participants have a credit rating change to below investment grade.

Southern Company, the traditional operating companies, and Southern Power are exposed to losses related to financial instruments in the event of counterparties' nonperformance. Southern Company, the traditional operating companies, and Southern Power only enter into agreements and material transactions with counterparties that have investment grade credit ratings by Moody's and S&P or with counterparties who have posted collateral to cover potential credit exposure. Southern Company, the traditional operating companies, and Southern Power have also established risk management policies and controls to determine and monitor the creditworthiness of counterparties in order to mitigate Southern Company's, the traditional operating companies', and Southern Power's exposure to counterparty credit risk. Therefore, Southern Company, the traditional operating companies, and Southern Power do not anticipate a material adverse effect on the financial statements as a result of counterparty nonperformance.

(I) ACQUISITIONS

Campo Verde Solar, LLC Acquisition

On April 23, 2013, Southern Power and Turner Renewable Energy, LLC (TRE), through Southern Turner Renewable Energy, LLC (STR), a jointly-owned subsidiary owned 90% by Southern Power , acquired all of the outstanding membership interests of Campo Verde Solar, LLC (Campo Verde) from First Solar, Inc., the developer of the project. Campo Verde is constructing a 139-MW solar photovoltaic facility in Southern California. The solar facility is expected to begin commercial operation in the fourth quarter 2013. The output of the plant is contracted under a 20-year PPA with San Diego Gas & Electric Company, a subsidiary of Sempra Energy, that is expected to begin in the fourth quarter 2013. This PPA will be accounted for as an operating lease. The acquisition is in accordance with Southern Power's overall growth strategy.

Southern Power's acquisition of Campo Verde included cash consideration of $136.6 million. The allocation of the purchase price to individual assets has not been finalized. Under an engineering, procurement, and construction agreement (Construction Agreement), an additional $357.3 million will be paid to a subsidiary of First Solar, Inc. (Construction Contractor) to complete construction of the solar facility.

In the event certain unforeseeable conditions occur at the project site, the Construction Contractor may terminate the Construction Agreement, and in the event the Construction Contractor does not achieve certain construction or project development milestones by certain dates, STR may terminate the Construction Agreement. In each case, a subsidiary of First Solar will be required to make a termination payment to STR equal to STR's investment in Campo Verde (net of any tax or other benefits received by STR) and STR will be required to transfer its ownership in Campo Verde to the subsidiary of First Solar (the Termination Payment and Transfer). In addition, under the acquisition agreement, a subsidiary of First Solar may require the Termination Payment and Transfer to occur in the event costs relating to certain contingencies exceed a certain threshold until such time that the contingencies are satisfactorily resolved under the terms of the acquisition agreement, and STR may require the Termination Payment and Transfer to occur in the event certain contingencies are not satisfactorily resolved. The ultimate outcome of this matter cannot be determined at this time; however, STR believes the likelihood of a Termination Payment and Transfer to be remote at the acquisition date.

163

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(J) INVESTMENTS IN LEVERAGED LEASES

See Note 1 to the financial statements of Southern Company under "Leveraged Leases" in Item 8 of the Form 10-K for additional information.

On March 1, 2013, Southern Company completed the restructuring of the nonrecourse debt and the related rental payments associated with its leveraged lease investment in a 440-MW generation facility located in Choctaw County, Mississippi. In connection with the restructuring, Southern Company has committed, as owner/lessor, to invest approximately $60 million in capital over the next three years to improve the operational performance of the facility and upgrade environmental controls. As part of the restructuring, the interest rate on the nonrecourse debt was significantly reduced, resulting in lower debt payments for Southern Company and lower rental payments for the lessee over the remaining 19-year term of the nonrecourse debt and the lease. As a consequence of the restructuring, Southern Company recalculated its net investment in the lease to reflect changes in the future cash flows to Southern Company as owner/lessor. As a result of the recalculation, Southern Company recorded an after-tax charge to income during the first quarter 2013 of approximately $16 million. This noncash charge reflects a reallocation of previously recognized lease income that will be reflected in income over the remaining term of the lease.

164

NOTES TO THE CONDENSED FINANCIAL STATEMENTS: (Continued)

(K) SEGMENT AND RELATED INFORMATION

Southern Company's reportable business segments are the sale of electricity in the Southeast by the four traditional operating companies and Southern Power. Revenues from sales by Southern Power to the traditional operating companies were $78 million and $112 million for the three months ended March 31, 2013 and March 31, 2012, respectively. The "All Other" column includes parent Southern Company, which does not allocate operating expenses to business segments. Also, this category includes segments below the quantitative threshold for separate disclosure. These segments include investments in telecommunications and leveraged lease projects. All other intersegment revenues are not material. Financial data for business segments and products and services was as follows:

	Electric Utilities
	Traditional Operating Companies		Southern Power		Eliminations			Total		All Other			Eliminations			Consolidated
	(in millions)
Three Months Ended March 31, 2013:
Operating revenues	$	3,668	$	303	$	(86	)	$	3,885	$	35		$	(23	)	$	3,897
Segment net income (loss)(a)(b)	66		29		—			95		(16		)	2			81
Total assets at March 31, 2013	$	58,752	$	3,858	$	(109	)	$	62,501	$	1,075		$	(302	)	$	63,274
Three Months Ended March 31, 2012:
Operating revenues	$	3,449	$	254	$	(114	)	$	3,589	$	38		$	(23	)	$	3,604
Segment net income (loss)(a)	339		29		1			369		2			(3		)	368
Total assets at December 31, 2012	$	58,600	$	3,780	$	(129	)	$	62,251	$	1,116		$	(218	)	$	63,149

(a) After dividends on preferred and preference stock of subsidiaries.

(b) Segment net income (loss) for the three months ended March 31, 2013 includes a $540.0 million pre-tax charge ($333.5 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for additional information.

Products and Services

	Electric Utilities' Revenues
	Retail		Wholesale		Other		Total
	(in millions)
Three Months Ended March 31, 2013	$	3,298	$	432	$	155	$	3,885
Three Months Ended March 31, 2012	3,092		349		148		3,589

165

PART II — OTHER INFORMATION

Item 1. Legal Proceedings.

See the Notes to the Condensed Financial Statements herein for information regarding certain legal and administrative proceedings in which the registrants are involved.

Item 1A. Risk Factors.

See RISK FACTORS in Item 1A of the Form 10-K for a discussion of the risk factors of the registrants. There have been no material changes to these risk factors from those previously disclosed in the Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

(c) Issuer Purchases of Equity Securities

2013	Total Number of Shares Purchased (a)	Average Price Paid Per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (a)
January 1 - January 31	—	N/A	N/A	N/A
February 1 - February 28	—	N/A	N/A	N/A
March 1 - March 31	—	N/A	N/A
Total	—	N/A	N/A	N/A

(a) In July 2012, Southern Company announced a program to repurchase shares to partially offset the incremental shares issued under its employee and director stock plans. As of December 31, 2012, Southern Company had repurchased a total of 9,439,561 shares under this program. In January 2013, Southern Company announced that it plans to continue this program through 2015. There were no repurchases under this program in the first quarter 2013. Pursuant to approval by the Southern Company Board of Directors, Southern Company may repurchase shares through open market purchases or privately negotiated transactions, in accordance with applicable securities laws.

166

Item 5. Other Information

In December 2011, the Financial Accounting Standards Board (FASB) issued new guidance addressing balance sheet offsetting of financial instruments and derivative instruments.Under this guidance, companies are required to report gross and net information for recognized derivative instruments and financial instruments eligible for offset under existing GAAP or subject to enforceable master netting arrangements. The FASB also issued guidance in January 2013 to clarify the scope of the new requirement, narrowing its focus to derivative instruments, security lending and borrowing agreements, and repurchase and reverse repurchase arrangements. Although new disclosures are required to present the effect or potential effect of offset related to such instruments, the existing accounting guidance allowing (but not requiring) balance sheet offsetting remains unchanged.

Southern Company and each subsidiary registrant adopted the new guidance retrospectively on January 1, 2013. The table below reflects each registrant's retrospective application of this guidance at December 31, 2011. The retrospective application did not have a material impact on the financial condition or results of operations of Southern Company or any of its subsidiary registrants. See Note (H) to the Condensed Financial Statements under "Balance Sheet Offsetting" herein for additional information.

	Asset Derivative Contracts at December 31, 2011 (Unaudited)
	Fair Value
	Southern Company			Alabama Power		Georgia Power			Gulf Power		Mississippi Power			Southern Power
	(millions)
Assets
Energy-related derivatives
Net amounts of assets presented in the Balance Sheet (a)	$	14		$	—	$	13		$	—	$	—		$	1
Gross amounts not offset in the Balance Sheet (b)	(14		)	—		(13		)	—		—			(1		)
Net energy-related derivatives	$	—		$	—	$	—		$	—	$	—		$	—
Interest rate derivatives
Net amounts of assets presented in the Balance Sheet (a)	$	13		$	—	$	—		$	—	$	—		$	—
Gross amounts not offset in the Balance Sheet (b)	—			—		—			—		—			—
Net interest rate derivatives	$	13		$	—	$	—		$	—	$	—		$	—
Foreign currency derivatives
Net amounts of assets presented in the Balance Sheet (a)	$	2		$	—	$	—		$	—	$	2		$	—
Gross amounts not offset in the Balance Sheet (b)	(2		)	—		—			—		(2		)	—
Net foreign currency derivatives	—			—		—			—		—			—
Total Net Derivative Assets	$	13		$	—	$	—		$	—	$	—		$	—

^(a) None of the registrants offset fair value amounts recognized for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

^(b) Includes gross amounts subject to netting terms that are not offset on the balance sheet and any cash/financial collateral pledged or received.

167

	Liability Derivative Contracts at December 31, 2011 (Unaudited)
	Fair Value
	Southern Company			Alabama Power		Georgia Power			Gulf Power		Mississippi Power			Southern Power
	(millions)
Liability
Energy-related derivatives
Net amounts of liabilities presented in the Balance Sheet (a)	$	245		$	48	$	95		$	41	$	51		$	10
Gross amounts not offset in the Balance Sheet (b)	(14		)	—		(13		)	—		—			—
Net energy-related derivatives	$	231		$	48	$	82		$	41	$	51		$	10
Interest rate derivatives
Net amounts of liabilities presented in the Balance Sheet (a)	$	33		$	18	$	—		$	—	$	15		$	—
Gross amounts not offset in the Balance Sheet (b)	—			—		—			—		—			—
Net interest rate derivatives	$	33		$	18	$	—		$	—	$	15		$	—
Foreign currency derivatives
Net amounts of liabilities presented in the Balance Sheet (a)	$	3		$	—	$	—		$	—	$	3		$	—
Gross amounts not offset in the Balance Sheet (b)	(2		)	—		—			—		(2		)	—
Net foreign currency derivatives	1			—		—			—		1			—
Total Net Derivative Liabilities	$	265		$	66	$	82		$	41	$	67		$	10

^(a) None of the registrants offset fair value amounts recognized for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

^(b) Includes gross amounts subject to netting terms that are not offset on the balance sheet and any cash/financial collateral pledged or received.

168

Item 6.    Exhibits.

(4) Instruments Describing Rights of Security Holders, Including Indentures
Georgia Power
(c)1	-	Fiftieth Supplemental Indenture to Senior Note Indenture dated as of March 15, 2013, providing for the issuance of the Series 2013A 4.30% Senior Notes due March 15, 2043. (Designated in Form 8-K dated March 12, 2013, File No. 1-6468, as Exhibit 4.2(a).)
(c)2	-	Fifty-First Supplemental Indenture to Senior Note Indenture dated as of March 15, 2013, providing for the issuance of the Series 2013B Floating Rate Senior Notes due March 15, 2016. (Designated in Form 8-K dated March 12, 2013, File No. 1-6468, as Exhibit 4.2(b).)
(10) Material Contracts
Southern Company
(a)1	-	Base Salaries of Named Executive Officers.
(a)2	-	Letter Agreement between Southern Company and Stephen E. Kuczynski dated June 4, 2011 regarding the terms of an offer of employment.
(a)3	-	Retention and Restricted Stock Unit Award Agreement between Southern Nuclear and Stephen E. Kuczynski effective as of July 11, 2011.
Georgia Power
(c)1	-	Base Salaries of Named Executive Officers.
(24) Power of Attorney and Resolutions
Southern Company
(a)1	-	Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2012, File No. 1-3526 as Exhibit 24(a) and incorporated herein by reference.)
Alabama Power
(b)1	-	Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2012, File No. 1-3164 as Exhibit 24(b) and incorporated herein by reference.)
Georgia Power
(c)1	-	Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2012, File No. 1-6468 as Exhibit 24(c) and incorporated herein by reference.)
(c)2	-	Power of Attorney for W. Ron Hinson.
Gulf Power
(d)1	-	Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2012, File No. 001-31737 as Exhibit 24(d) and incorporated herein by reference.)
Mississippi Power
(e)1	-	Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2012, File No. 001-11229 as Exhibit 24(e) and incorporated herein by reference.)
Southern Power
(f)1	-	Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2012, File No. 333-98553 as Exhibit 24(f) and incorporated herein by reference.)

169

(31) Section 302 Certifications
Southern Company
(a)1	-	Certificate of Southern Company's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(a)2	-	Certificate of Southern Company's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
Alabama Power
(b)1	-	Certificate of Alabama Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(b)2	-	Certificate of Alabama Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
Georgia Power
(c)1	-	Certificate of Georgia Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(c)2	-	Certificate of Georgia Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
Gulf Power
(d)1	-	Certificate of Gulf Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(d)2	-	Certificate of Gulf Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
Mississippi Power
(e)1	-	Certificate of Mississippi Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(e)2	-	Certificate of Mississippi Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
Southern Power
(f)1	-	Certificate of Southern Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(f)2	-	Certificate of Southern Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
(32) Section 906 Certifications
Southern Company
(a)	-	Certificate of Southern Company's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
Alabama Power
(b)	-	Certificate of Alabama Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
Georgia Power
(c)	-	Certificate of Georgia Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.

170

Gulf Power
(d)	-	Certificate of Gulf Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
Mississippi Power
(e)	-	Certificate of Mississippi Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
Southern Power
(f)	-	Certificate of Southern Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.

171

(101)	XBRL — Related Documents
INS	XBRL Instance Document
SCH	XBRL Taxonomy Extension Schema Document
CAL	XBRL Taxonomy Calculation Linkbase Document
DEF	XBRL Definition Linkbase Document
LAB	XBRL Taxonomy Label Linkbase Document
PRE	XBRL Taxonomy Presentation Linkbase Document

172

THE SOUTHERN COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

	THE SOUTHERN COMPANY
By	Thomas A. Fanning
	Chairman, President, and Chief Executive Officer
	(Principal Executive Officer)
By	Art P. Beattie
	Executive Vice President and Chief Financial Officer
	(Principal Financial Officer)
By	/s/ Melissa K. Caen
	(Melissa K. Caen, Attorney-in-fact)

Date: May 10, 2013

173

ALABAMA POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

	ALABAMA POWER COMPANY
By	Charles D. McCrary
	President and Chief Executive Officer
	(Principal Executive Officer)
By	Philip C. Raymond
	Executive Vice President, Chief Financial Officer, and Treasurer
	(Principal Financial Officer)
By	/s/ Melissa K. Caen
	(Melissa K. Caen, Attorney-in-fact)

Date: May 10, 2013

174

GEORGIA POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

	GEORGIA POWER COMPANY
By	W. Paul Bowers
	President and Chief Executive Officer
	(Principal Executive Officer)
By	W. Ron Hinson
	Executive Vice President, Chief Financial Officer, Treasurer, and Comptroller
	(Principal Financial Officer)
By	/s/ Melissa K. Caen
	(Melissa K. Caen, Attorney-in-fact)

Date: May 10, 2013

175

GULF POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

	GULF POWER COMPANY
By	S. W. Connally, Jr.
	President and Chief Executive Officer
	(Principal Executive Officer)
By	Richard S. Teel
	Vice President and Chief Financial Officer
	(Principal Financial Officer)
By	/s/ Melissa K. Caen
	(Melissa K. Caen, Attorney-in-fact)

Date: May 10, 2013

176

MISSISSIPPI POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

	MISSISSIPPI POWER COMPANY
By	Edward Day, VI
	President and Chief Executive Officer
	(Principal Executive Officer)
By	Moses H. Feagin
	Vice President, Chief Financial Officer, and Treasurer
	(Principal Financial Officer)
By	/s/ Melissa K. Caen
	(Melissa K. Caen, Attorney-in-fact)

Date: May 10, 2013

177

SOUTHERN POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

	SOUTHERN POWER COMPANY
By	Oscar C. Harper IV
	President and Chief Executive Officer
	(Principal Executive Officer)
By	Michael W. Southern
	Senior Vice President, Chief Financial Officer, and Treasurer
	(Principal Financial Officer)
By	/s/ Melissa K. Caen
	(Melissa K. Caen, Attorney-in-fact)

Date: May 10, 2013

178

EX-10.A1

Exhibit 10(a)1

BASE SALARIES OF NAMED EXECUTIVE OFFICERS

THE SOUTHERN COMPANY

The following are the annual base salaries, effective March 1, 2013, of the Chief Executive Officer and Chief Financial Officer of The Southern Company (the “Company”) and certain other executive officers of the Company who served during 2012.

Thomas A. Fanning Chairman, President and Chief Executive Officer	$1,587,750
Art P. Beattie Executive Vice President and Chief Financial Officer	$647,594
Charles D. McCrary Executive Vice President of the Company, President and Chief Executive Officer of Alabama Power Company	$803,247
W. Paul Bowers Executive Vice President of the Company, President and Chief Executive Officer of Georgia Power Company	$764,406
Stephen E. Kuczynski President and Chief Executive Officer, Southern Nuclear	$661,775

EX-10.A2

Exhibit 10(a)2

Thomas A. Fanning Chairman, President, and Chief Executive Officer	Bin SC1500 30 Ivan Allen Jr. Boulevard. NW Atlanta, GA 30308 Tel 404.506.5000

June 4, 2011

Mr. Stephen E. Kuczynski

41W981 Oak Hill Drive

Saint Charles, IL 60175

Dear Stephen:

We are pleased to extend to you a conditional offer of employment for the position of Chairman, President and CEO of Southern Nuclear Operating Company, Inc. (Southern Nuclear). You will report directly to me.

The terms and conditions of your employment are as follows:

• An annual base salary of $625,000 to be paid on a bi-weekly basis in accordance with the Company's normal payroll practices. Subsequent annual base salary increases will be based upon an assessment of your individual performance under the Base Salary Program and as approved by the Compensation & Management Succession Committee of the Southern Company Board of Directors (Compensation Committee).

• Participation in the Company's annual variable pay plan; the Performance Pay Program (PPP). Your Target Award under this plan is 65% of annual base salary. The actual amount of any award you may receive can range from 0-200% of target based upon company, business unit and individual performance. Your award earned for the 2011 performance year, paid in March 2012 as a lump-sum, will be prorated based upon your date of hire.

• Participation in the Company's Long-Term Performance Compensation Program, that provides for an annual grant of stock options and/or performance share units. Your Target Award under this plan is 160% of your annual base salary. Long-term grants typically are made in February each year.

• The number of stock options you receive is based on your target award and the accounting fair value of a stock option at the time of the grant. The exercise price of stock options is the closing price on the date of the grant. Stock options vest one-third per year and have a ten-year term.

• The number of performance share units you receive is based on your target award and the accounting fair value of a performance share at the time of the grant. At the end of a three year performance period, you will be awarded actual shares of Southern Company stock based on Southern Company's Total Shareholder Return as compared to that of a group of utility peers. The number of shares you receive will range between 0-200% of the target units you received on the grant date.

• A new hire grant of non-qualified stock options with a grant date value $1,000,000 ($625,000 annual base salary x 160% long-term performance target). The number of options and the terms of the options will be as outlined in the previous bullet. An award agreement will be provided that details all terms of the stock options.

• A grant of Restricted Stock Units with an aggregate grant date value of $800,000 for foregone bonus and equity awards. The units will vest 30% on the first anniversary of your hire date, another 30% will vest on the second anniversary of your hire date and the remaining 40% will vest on the fourth anniversary of your hire date. The units will also vest immediately upon

Mr. Stephen E. Kuczynski

Letter Dated June 4, 2011

Page 2 of 3

death or termination due to disability. The units will be treated as if dividends are reinvested in Southern Company common stock. Payment of vested units will be made in shares of Southern Company common stock. An award agreement will be provided that details all terms of the restricted stock units.

• Participation in the pension plan and capital accumulation plans sponsored by the Company for similarly situated executives including the Southern Company Pension Plan, the Southern Company Supplemental Executive Retirement Plan, the Southern Company Employee Savings Plan, the Southern Company Supplemental Benefit Plan and the Southern Company Deferred Compensation Plan pursuant to the terms and eligibility requirement of those plans.

• Full benefits under the Company's relocation program including any loss on the sale of your current primary residence. If payment is required to keep you whole, it will be made in a lump sum. If you leave the Company within two years of relocating, repayment of the lump sum will be required.

• Personal usage of the Company's aircraft for six months for once weekly commuting or the equivalent. There will be no tax assistance provided.

• Lump sum reimbursement of club initiation fees. There will be no tax assistance provided.

• Participation in the Company's Executive Financial Planning Program pursuant to the terms of the program.

• Effective immediately with your employment you receive 10 paid holidays and twenty-five days of vacation.

• In the event you are involuntarily terminated by the Company not for cause, you will be eligible for a lump sum cash payment of one times base salary plus target PPP, subject to the approval of the Compensation Committee at the time of the termination.

Southern Nuclear strictly prohibits its employees from using or disseminating any confidential information of a prior employer and related materials while employed by Southern Nuclear.  We are hereby advising you that Southern Nuclear does not want such confidential information nor does Southern Nuclear want you to utilize such information while employed by Southern Nuclear.  By signing this letter, you agree that to the extent that you have any confidential information of Exelon Corporation or any of its affiliated companies (or any other prior employer), you will not use, disclose or disseminate that confidential information, directly or indirectly, while employed by Southern Nuclear. You further agree that all confidential records, documents, and similar items of your former employer shall not be utilized while employed with Southern Nuclear.

This offer is contingent upon you successfully meeting Southern Company's employment requirements which include but are not limited to verification of your application, a satisfactory background investigation and drug screen. We will contact you to confirm your start date after these employment requirements have been completed.

We will schedule an orientation with you and your Human Resources Director during the first week of employment. At this orientation, you will need to complete several employment forms and will be required to provide documents to verify your identity and authorization to work in the United States.

Your medical coverage begins on your first day of employment. You will receive a benefits package from our Employee Service Center within 10 days of your start date. In the interim, if you need medical attention, you will be covered under a basic benefit plan, which consists of medical, long-term disability and non-contributory life insurance.

Mr. Stephen E. Kuczynski

Letter Dated June 4, 2011

Page 3 of 3

We look forward to having you as part of our team. If you have any questions, please don't hesitate to call me at 404-506-0506.

Sincerely,

/s/Thomas A. Fanning

Acknowledged on behalf of the Compensation Committee:

/s/J. Neal Purcell J. Neal Purcell
Chair, Compensation Committee of the
Southern Company Board of Directors 6/2/2011 Date

The terms and conditions of this conditional offer of employment are agreed to and accepted.

/s/Stephen E. Kuczynski
Stephen E. Kuczynski 6-5-2011 Date

EX-10.A3

Exhibit 10(a)3

RETENTION AND RESTRICTED STOCK UNIT AWARD AGREEMENT

THIS RETENTION AND RESTRICTED STOCK UNIT AWARD AGREEMENT (Agreement) made and entered into by and between SOUTHERN NUCLEAR OPERATING COMPANY, INC. (Company) and STEPHEN E. KUCZYNSKI (Employee), shall be effective as of July 11, 2011 (Effective Date).

WITNESSETH:

WHEREAS, the Company wishes to encourage Employee to continue employment with the Company for a four -year term and to provide Employee with a retention award for service he will provide to the Company; and

WHEREAS, this Agreement will be treated as an Award under the Southern Company Omnibus Incentive Compensation Plan as it may be amended from time to time (Omnibus Plan).

NOW, THEREFORE, in consideration of the premises, and the agreement of the parties set forth in this Agreement, the parties hereby agree as follows:

1.Award Amounts. Employee shall become vested in the following, provided Employee is actively employed with the Company or an affiliate of the Company on the applicable Vesting Dates set forth below:

Amount	Vesting Date
5,979  Restricted Stock Units	July 11, 2012
5,979Restricted Stock Units	July 11, 2013
7,972  Restricted Stock Units	July 11, 2015

The amounts under this Paragraph 1 are awards of Restricted Stock Units under the terms of the Omnibus Plan. The deemed dividends associated with the Restricted Stock Units shall be credited and treated as reinvested in additional Restricted Stock Units until each Award is paid in accordance with Paragraph 2.

2.Timing and Form of Payment of Award Amounts.

(a)Generally. Unless modified by the provisions set forth in Paragraphs 2(b) or 2(c),

the vested amount shall be paid in shares of Common Stock to Employee in a lump sum within 30 days following the applicable Vesting Date (Scheduled Payment Date).

(b)Death. If Employee dies while in active service prior to the final Vesting Date, notwithstanding anything to the contrary in the Agreement, Employee shall be treated as fully vested in any unvested Awards set forth in Paragraph 1. The amount(s) vested under this Paragraph 2(b) shall be paid on the earlier of (i) the Scheduled Payment Date or (ii) within thirty

(30) days following the Employee's date of death. Employee shall designate his beneficiary(ies) in the beneficiary designation form set forth in Exhibit 1 to the Agreement.

(c)Disability. If Employee separates from service on account of becoming totally disabled as defined under the Company's long term disability plan prior to the final Vesting Date, notwithstanding anything to the contrary in the Agreement, Employee shall be treated as fully vested in the unvested Awards set forth in Paragraph 1. The amount(s) vested under this Paragraph 2(c) shall be paid on the earlier of (i) the Scheduled Payment Date or (ii) within 30 days following the date Employee separates from service on account of disability. However if Employee is a “specified employee” within the meaning of Section 409A of the Internal Revenue Code (the “Code”) as of the date of his separation from service under this Section 2(c), then payment of any amounts vested under this Section shall be deferred for six (6) months after the date of his separation from service to the extent required by the Code.

(d) Transfer of Employment to a Southern Company Subsidiary or Affiliate. In the event that Employee's employment by the Company is terminated and Employee shall become immediately re-employed by a subsidiary or an affiliate of Southern Company, the Company may assign this Agreement to such subsidiary or affiliate if agreed to by such entity, and such assignee shall become the "Company" for all purposes hereunder. If such subsidiary or affiliate does not agree to accept such assignment, Employee shall be treated as if he remained employed by Southern Nuclear Operating Company, Inc. for any period of time he was employed by an affiliate of the Company.

3.Amendment and/or Termination of this Agreement. The Agreement terminates when all amounts have been paid or forfeited. Notwithstanding the preceding sentence, the Employee, pursuant to Paragraph 2, and the Company may mutually agree to amend or terminate the Agreement prior to the end of the four-year term only by written agreement signed by each party.

4.Confidentiality. Employee represents and agrees that he will keep all terms and provisions of this Agreement confidential, except for possible disclosures to his legal and financial advisors and his spouse or to the extent required by law, and Employee further agrees that he will not disclose the terms, provisions or information contained in or concerning the Agreement to anyone other than those persons named above, including, but not limited to, any past, present or prospective employee or applicant for employment with the Company or any affiliate of the Company. The Agreement is not intended in any way to proscribe Employee's right and ability to provide information to any federal, state or local government in the lawful exercise of such governments' governmental functions.

5.Assignability. Neither Employee, his estate, his beneficiaries nor his legal representatives shall have any rights to commute, sell, assign, transfer or otherwise convey the right to receive any payments hereunder, which payments and the rights thereto are expressly declared to be nonassignable and nontransferable. Any attempt to assign or transfer the right to payments under the Agreement shall be void and have no effect.

6.Unsecured General Creditor. The Company shall neither reserve nor specifically set aside funds for the payment of its obligations under the Agreement, and such obligations shall be paid solely from the general assets of the Company. Notwithstanding that Employee may be entitled to receive payments under the terms and conditions of the Agreement, the assets from which such amounts may be paid shall at all times be subject to the claims of the Company's creditors.

7.No Effect on Other Arrangements. It is expressly understood and agreed that any payments made in accordance with the Agreement are in addition to any other benefits or compensation to which Employee may be entitled or for which he may be eligible, whether funded or unfunded, by reason of his employment with the Company.

8. Tax Withholding and Implications. To the extent permitted under Section 409A of the Code, there shall be deducted from the vested award amounts the number of shares of Common Stock necessary to cover the amount of any tax required by any governmental authority to be withheld from the Employee and paid over by the Company to such governmental authority for the account of the Employee. The Company makes no representations or guarantees regarding the tax implications of the Agreement and advises Employee to consult with his attorney and/or tax advisor regarding the tax implications of the Agreement. In addition, Employee agrees to hold harmless the Company with respect to any tax liability for any and all federal, state or local taxes or assessments, interest or penalties of any kind arising from the Agreement.

9.Compensation. Any compensation paid to Employee pursuant to the Agreement shall not be considered "compensation" as the term is defined in The Southern Company Employee Savings Plan, or "earnings" that is defined in The Southern Company Pension Plan. Payments to Employee shall not be considered wages, salary or compensation under any other Company-sponsored employee benefit or compensation plan or program, unless the explicit terms of such plan or program provide otherwise.

10.No Guarantee of Employment. No provision of the Agreement shall be construed to affect in any manner the existing rights of the Company to suspend, terminate, alter or modify, whether or not for cause, the Employee's employment relationship with the Company.

11.Governing Law. The Agreement, and all rights under it, shall be governed by and construed in accordance with the laws of the State of Alabama, without giving effect to principles of conflicts of laws.

12.Section 409A. Any Payment provided under this Agreement is intended to be a short-term deferral as provided by Section 409A of the Internal Revenue Code and the regulations promulgated thereunder, and the parties agree that the terms and provisions of the Agreement will be construed and interpreted to the maximum extent permitted in order to have this effect.

SIGNATURES ARE ON FOLLOWING PAGE

IN WITNESS WHEREOF, this Agreement has been executed by the parties first listed above, this 30th day of July, 2011.

“COMPANY”
SOUTHERN NUCLEAR OPERATING COMPANY, INC.


By: /s/Stacy R. Kilcoyne
Its: Vice President

“EMPLOYEE”
STEPHEN E. KUCZYNSKI

/s/Stephen E. Kuczynski

RETENTION AND RESTRICTED STOCK UNIT AWARD AGREEMENT

EXHIBIT 1

BENEFICIARY DESIGNATION

Beneficiary

Name	Relationship	Percentage
Name	Relationship	Percentage

In the event that all or some beneficiaries designated above are not living at the time payment

should be made, I designate the following contingent beneficiaries to be paid such amounts:

Contingent Beneficiary

Name	Relationship	Percentage
Name	Relationship	Percentage

Any amounts not paid to the contingent beneficiary(ies) shall be paid to the Employee's estate.

EX-10.C1

Exhibit 10(c)1

BASE SALARIES OF NAMED EXECUTIVE OFFICERS

GEORGIA POWER COMPANY

The following are the annual base salaries, effective March 1, 2013, of the Chief Executive Officer and Chief Financial Officer of Georgia Power Company and certain other executive officers of Georgia Power Company who served during 2012.

W. Paul Bowers President and Chief Executive Officer	$764,406
Ronnie R. Labrato* Executive Vice President, Chief Financial Officer and Treasurer	$307,114
Joseph A. Miller Executive Vice President	$415,158
John L. Pemberton Senior Vice President and Senior Production Officer	$309,344
Anthony L. Wilson Executive Vice President	$336,444

*Retired March 31, 2013

EX-24.C2

Exhibit 24(c)2

April 15, 2013

Laura I. Patterson, Art P. Beattie and Melissa K. Caen

Ladies and Mr. Beattie:

As an officer of Georgia Power Company, I hereby make, constitute, and appoint you my true and lawful Attorney in my name, place and stead, to sign and cause to be filed with the Securities and Exchange Commission (1) this Company's Quarterly Reports on Form 10-Q during 2013, and (2) any necessary or appropriate amendment or amendments to any such reports and to this Company's Annual Report on Form 10-K for the year ended December 31, 2012, each such report or amendments to such reports to be accompanied in each case by any necessary or appropriate exhibits or schedules thereto.

Yours very truly,

/s/W. Ron Hinson

W. Ron Hinson

EX-31.A1

Exhibit 31(a)1

THE SOUTHERN COMPANY

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Thomas A. Fanning, certify that:

1. I have reviewed this quarterly report on Form 10-Q of The Southern Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Thomas A. Fanning

Thomas A. Fanning

Chairman, President and

Chief Executive Officer

EX-31.A2

Exhibit 31(a)2

THE SOUTHERN COMPANY

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Art P. Beattie, certify that:

1. I have reviewed this quarterly report on Form 10-Q of The Southern Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Art P. Beattie

Art P. Beattie

Executive Vice President and Chief Financial Officer

EX-31.B1

Exhibit 31(b)1

ALABAMA POWER COMPANY

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Charles D. McCrary, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Alabama Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Charles D. McCrary

Charles D. McCrary

President and Chief Executive Officer

EX-31.B2

Exhibit 31(b)2

ALABAMA POWER COMPANY

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Philip C. Raymond, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Alabama Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Philip C. Raymond

Philip C. Raymond

Executive Vice President, Chief Financial Officer

and Treasurer

EX-31.C1

Exhibit 31(c)1

GEORGIA POWER COMPANY

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, W. Paul Bowers, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Georgia Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 10, 2013

/s/W. Paul Bowers 

W. Paul Bowers

President and Chief Executive Officer

EX-31.C2

Exhibit 31(c)2

GEORGIA POWER COMPANY

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, W. Ron Hinson, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Georgia Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/W. Ron Hinson

W. Ron Hinson

Executive Vice President, Chief Financial Officer,

Treasurer and Comptroller

EX-31.D1

Exhibit 31(d)1

GULF POWER COMPANY

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, S. W. Connally, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Gulf Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/S. W. Connally, Jr.

S. W. Connally, Jr.

President and Chief Executive Officer

EX-31.D2

Exhibit 31(d)2

GULF POWER COMPANY

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Richard S. Teel, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Gulf Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Richard S. Teel

Richard S. Teel

Vice President and Chief Financial Officer

EX-31.E1

Exhibit 31(e)1

MISSISSIPPI POWER COMPANY

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Edward Day, VI, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Mississippi Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Edward Day, VI

Edward Day, VI

President and Chief Executive Officer

EX-31.E2

Exhibit 31(e)2

MISSISSIPPI POWER COMPANY

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Moses H. Feagin, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Mississippi Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013 

/s/Moses H. Feagin

Moses H. Feagin

Vice President, Treasurer and

Chief Financial Officer

EX-31.F1

Exhibit 31(f)1

SOUTHERN POWER COMPANY

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Oscar C. Harper IV, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southern Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 10, 2013

/s/Oscar C. Harper IV

Oscar C. Harper IV

President and Chief Executive Officer

EX-31.F2

Exhibit 31(f)2

SOUTHERN POWER COMPANY

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Michael W. Southern, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southern Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  May 10, 2013

/s/Michael W. Southern

Michael W. Southern

Senior Vice President, Treasurer and Chief Financial Officer

EX-32.A

Exhibit 32(a)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of The Southern Company for the quarter ended March 31, 2013, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

(1) such Quarterly Report on Form 10-Q of The Southern Company for the quarter ended March 31, 2013, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in such Quarterly Report on Form 10-Q of The Southern Company for the quarter ended March 31, 2013, fairly presents, in all material respects, the financial condition and results of operations of The Southern Company.

/s/Thomas A. Fanning

Thomas A. Fanning

Chairman, President and

Chief Executive Officer

/s/Art P. Beattie

Art P. Beattie

Executive Vice President and

Chief Financial Officer

May 10, 2013

EX-32.B

Exhibit 32(b)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of Alabama Power Company for the quarter ended March 31, 2013, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

(1) such Quarterly Report on Form 10-Q of Alabama Power Company for the quarter ended March 31, 2013, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in such Quarterly Report on Form 10-Q of Alabama Power Company for the quarter ended March 31, 2013, fairly presents, in all material respects, the financial condition and results of operations of Alabama Power Company.

/s/Charles D. McCrary

Charles D. McCrary

President and Chief Executive Officer

/s/Philip C. Raymond

Philip C. Raymond

Executive Vice President,

Chief Financial Officer and Treasurer

May 10, 2013

EX-32.C

Exhibit 32(c)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of Georgia Power Company for the quarter ended March 31, 2013, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

(1) such Quarterly Report on Form 10-Q of Georgia Power Company for the quarter ended March 31, 2013, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in such Quarterly Report on Form 10-Q of Georgia Power Company for the quarter ended March 31, 2013, fairly presents, in all material respects, the financial condition and results of operations of Georgia Power Company.

/s/W. Paul Bowers

W. Paul Bowers

President and Chief Executive Officer

/s/W. Ron Hinson

W. Ron Hinson

Executive Vice President, Chief Financial Officer,

Treasurer and Comptroller

May 10, 2013

EX-32.D

Exhibit 32(d)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of Gulf Power Company for the quarter ended March 31, 2013, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

(1) such Quarterly Report on Form 10-Q of Gulf Power Company for the quarter ended March 31, 2013, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in such Quarterly Report on Form 10-Q of Gulf Power Company for the quarter ended March 31, 2013, fairly presents, in all material respects, the financial condition and results of operations of Gulf Power Company.

/s/S. W. Connally, Jr.

S. W. Connally, Jr.

President and Chief Executive Officer

/s/Richard S. Teel

Richard S. Teel

Vice President and Chief Financial Officer

May 10, 2013

EX-32.E

Exhibit 32(e)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of Mississippi Power Company for the quarter ended March 31, 2013, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

(1) such Quarterly Report on Form 10-Q of Mississippi Power Company for the quarter ended March 31, 2013, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in such Quarterly Report on Form 10-Q of Mississippi Power Company for the quarter ended March 31, 2013, fairly presents, in all material respects, the financial condition and results of operations of Mississippi Power Company.

/s/Edward Day, VI

Edward Day, VI

President and Chief Executive Officer

/s/Moses H. Feagin

Moses H. Feagin

Vice President, Treasurer and

Chief Financial Officer

May 10, 2013

EX-32.F

Exhibit 32(f)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of Southern Power Company for the quarter ended March 31, 2013, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

(1) such Quarterly Report on Form 10-Q of Southern Power Company for the quarter ended March 31, 2013, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in such Quarterly Report on Form 10-Q of Southern Power Company for the quarter ended March 31, 2013, fairly presents, in all material respects, the financial condition and results of operations of Southern Power Company.

/s/Oscar C. Harper IV

Oscar C. Harper IV

President and Chief Executive Officer

/s/Michael W. Southern

Michael W. Southern

Senior Vice President, Treasurer and

Chief Financial Officer

May 10, 2013

XML

Effective Tax Rate and Unrecognized Tax Benefits - Changes for Unrecognized Tax Benefits (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Changes for Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits as of December 31, 2012	$ 70
Tax positions from current periods	3
Balance as of March 31, 2013	73
Alabama Power [Member]
Changes for Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits as of December 31, 2012	31
Tax positions from current periods	1
Balance as of March 31, 2013	32
Georgia Power [Member]
Changes for Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits as of December 31, 2012	23
Tax positions from current periods	1
Balance as of March 31, 2013	24
Gulf Power [Member]
Changes for Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits as of December 31, 2012	5
Tax positions from current periods	0
Balance as of March 31, 2013	5
Mississippi Power [Member]
Changes for Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits as of December 31, 2012	6
Tax positions from current periods	0
Balance as of March 31, 2013	6
Southern Power [Member]
Changes for Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits as of December 31, 2012	3
Tax positions from current periods	0
Balance as of March 31, 2013	$ 3

XML

Acquisitions (Details) (Campo Verde Solar LLC [Member], Southern Power [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Apr. 23, 2013 Subsequent Event [Member] MW
Acquisitions (Textual) [Abstract]
Percent of interest owned indirectly by Southern Power	90.00%
Power of solar polycrystalline silicon facility		139
Beginning year of output of constructed plant		2013
Life Output Of Plant	20 years
Cash Consideration for acquisition of the interests in Apex		$ 136.6
Cash Consideration will be paid under MIPA		$ 357.3

XML

Derivatives - Contingent Features (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 1
Alabama Power [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0
Georgia Power [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	2
Gulf Power [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0
Mississippi Power [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0
Southern Power [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 0

XML

Fair Value Measurements - Financial Instruments for which Carrying Amount did not Equal Fair Value (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Long-term debt:
Long-term debt, Carrying Amount	$ 21,915
Long-term debt, Fair Value	23,644
Alabama Power [Member]
Long-term debt:
Long-term debt, Carrying Amount	6,179
Long-term debt, Fair Value	6,853
Georgia Power [Member]
Long-term debt:
Long-term debt, Carrying Amount	9,639
Long-term debt, Fair Value	10,316
Gulf Power [Member]
Long-term debt:
Long-term debt, Carrying Amount	1,246
Long-term debt, Fair Value	1,353
Mississippi Power [Member]
Long-term debt:
Long-term debt, Carrying Amount	2,211
Long-term debt, Fair Value	2,294
Southern Power [Member]
Long-term debt:
Long-term debt, Carrying Amount	1,308
Long-term debt, Fair Value	$ 1,448

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Financing (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Credit arrangements by company

The following table outlines the committed credit arrangements by company as of March 31, 2013: 

	Expires(a)												Executable Term Loans				Due Within  One Year
Company	2013		2014		2016		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
	(in millions)								(in millions)				(in millions)				(in millions)
Southern Company	$	—	$	—	$	—	$	1,000	$	1,000	$	1,000	$	—	$	—	$	—	$	—
Alabama Power	156		151		—		1,000		1,307		1,307		56		—		56		102
Georgia Power	—		—		150		1,600		1,750		1,740		—		—		—		—
Gulf Power	45		60		165		—		270		270		45		—		45		30
Mississippi Power	110		25		165		—		300		300		25		40		65		70
Southern Power	—		—		—		500		500		500		—		—		—		—
Other	50		—		—		—		50		50		25		—		25		25
Total	$	361	$	236	$	480	$	4,100	$	5,177	$	5,167	$	151	$	40	$	191	$	227

(a) No credit arrangements expire in 2015 or 2017.

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Segment and Related Information - Financial Data for Business Segments (Details) (USD $)	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012		Dec. 31, 2012
Financial data for business segments
Operating revenues	$ 3,897,000,000		$ 3,604,000,000
Segment net income (loss)	81,000,000	[1],[2]	368,000,000	[1]
Total assets	63,274,000,000				63,149,000,000
After Tax Charge To Income	16,000,000
Electric Utilities [Member]
Financial data for business segments
Operating revenues	3,885,000,000		3,589,000,000
Segment net income (loss)	95,000,000	[1],[2]	369,000,000	[1]
Total assets	62,501,000,000				62,251,000,000
Traditional Operating Companies [Member] | Electric Utilities [Member]
Financial data for business segments
Operating revenues	3,668,000,000		3,449,000,000
Segment net income (loss)	66,000,000	[1],[2]	339,000,000	[1]
Total assets	58,752,000,000				58,600,000,000
Southern Power [Member]
Segment and Related Information (Textual) [Abstract]
Southern Power's revenues from sales to the traditional operating companies	78,000,000		112,000,000
Southern Power [Member] | Electric Utilities [Member]
Financial data for business segments
Operating revenues	303,000,000		254,000,000
Segment net income (loss)	29,000,000	[1],[2]	29,000,000	[1]
Total assets	3,858,000,000				3,780,000,000
Eliminations [Member]
Financial data for business segments
Operating revenues	(23,000,000)		(23,000,000)
Segment net income (loss)	2,000,000	[1],[2]	(3,000,000)	[1]
Total assets	(302,000,000)				(218,000,000)
Eliminations [Member] | Electric Utilities [Member]
Financial data for business segments
Operating revenues	(86,000,000)		(114,000,000)
Segment net income (loss)	0	[1],[2]	1,000,000	[1]
Total assets	(109,000,000)				(129,000,000)
All Other [Member]
Financial data for business segments
Operating revenues	35,000,000		38,000,000
Segment net income (loss)	(16,000,000)	[1],[2]	2,000,000	[1]
Total assets	1,075,000,000				1,116,000,000
Kemper Igcc [Member]
Segment Reporting Information [Line Items]
Pre-Tax Charge Of Income	540,000,000
Financial data for business segments
After Tax Charge To Income	$ 333,500,000

[1] After dividends on preferred and preference stock of subsidiaries

[2] Segment net income (loss) for the three months ended March 31, 2013 includes a $540.0 million pre-tax charge ($333.5 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for additional information.

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Derivatives - Schedule of Derivatives and Gains (Losses) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Notional amount of interest rate derivatives
Notional Amount	$ 350
Interest Rate Paid, basis spread on LIBOR	1.96%	[1]
Total deferred gains and losses are expected to be amortized into earnings
Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014	(12)
Total Deferred Gains (Losses) Amortized Through	2037
Alabama Power [Member]
Total deferred gains and losses are expected to be amortized into earnings
Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014	(3)
Total Deferred Gains (Losses) Amortized Through	2035
Georgia Power [Member]
Total deferred gains and losses are expected to be amortized into earnings
Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014	(3)
Total Deferred Gains (Losses) Amortized Through	2037
Gulf Power [Member]
Total deferred gains and losses are expected to be amortized into earnings
Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014	(1)
Total Deferred Gains (Losses) Amortized Through	2020
Mississippi Power [Member]
Total deferred gains and losses are expected to be amortized into earnings
Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014	(1)
Total Deferred Gains (Losses) Amortized Through	2022
Southern Power [Member]
Total deferred gains and losses are expected to be amortized into earnings
Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014	(4)
Total Deferred Gains (Losses) Amortized Through	2016
Fair Value Hedging [Member]
Notional amount of interest rate derivatives
Interest Rate Received	4.15%
Interest Rate Paid	3-month LIBOR  + 1.96%	[1]
Hedge Maturity Date	May 01, 2014
Fair Value Gain (Loss) March 31, 2013	$ 10
Gas [Member]
Energy-related derivative contracts
Net Purchased mmBtu	259,000,000
Longest Hedge Date	2017
Longest Non-Hedge Date	2017
Gas [Member] | Alabama Power [Member]
Energy-related derivative contracts
Net Purchased mmBtu	58,000,000
Longest Hedge Date	2017
Gas [Member] | Georgia Power [Member]
Energy-related derivative contracts
Net Purchased mmBtu	90,000,000
Longest Hedge Date	2017
Gas [Member] | Gulf Power [Member]
Energy-related derivative contracts
Net Purchased mmBtu	70,000,000
Longest Hedge Date	2017
Gas [Member] | Mississippi Power [Member]
Energy-related derivative contracts
Net Purchased mmBtu	36,000,000
Longest Hedge Date	2017
Gas [Member] | Southern Power [Member]
Energy-related derivative contracts
Net Purchased mmBtu	5,000,000
Longest Non-Hedge Date	2017

[1] Weighted average

XML

Financing (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Credit arrangements by company
Expires, 2013	$ 361	[1]
Expires, 2014	236	[1]
Expires, 2016	480	[1]
Expires, 2018	4,100	[1]
Total	5,177
Unused	5,167
Executable Term-Loans, One Year	151
Executable Term-Loans, Two Years	40
Due Within One Year, Term Out	191
Due Within One Year, No Term Out	227
Southern Company [Member]
Credit arrangements by company
Expires, 2013	0	[1]
Expires, 2014	0	[1]
Expires, 2016	0	[1]
Expires, 2018	1,000	[1]
Total	1,000
Unused	1,000
Executable Term-Loans, One Year	0
Executable Term-Loans, Two Years	0
Due Within One Year, Term Out	0
Due Within One Year, No Term Out	0
Alabama Power [Member]
Credit arrangements by company
Expires, 2013	156	[1]
Expires, 2014	151	[1]
Expires, 2016	0	[1]
Expires, 2018	1,000	[1]
Total	1,307
Unused	1,307
Executable Term-Loans, One Year	56
Executable Term-Loans, Two Years	0
Due Within One Year, Term Out	56
Due Within One Year, No Term Out	102
Line of Credit Facility, Amount Outstanding	200
Georgia Power [Member]
Credit arrangements by company
Expires, 2013	0	[1]
Expires, 2014	0	[1]
Expires, 2016	150	[1]
Expires, 2018	1,600	[1]
Total	1,750
Unused	1,740
Executable Term-Loans, One Year	0
Executable Term-Loans, Two Years	0
Due Within One Year, Term Out	0
Due Within One Year, No Term Out	0
Gulf Power [Member]
Credit arrangements by company
Expires, 2013	45	[1]
Expires, 2014	60	[1]
Expires, 2016	165	[1]
Expires, 2018	0	[1]
Total	270
Unused	270
Executable Term-Loans, One Year	45
Executable Term-Loans, Two Years	0
Due Within One Year, Term Out	45
Due Within One Year, No Term Out	30
Line of Credit Facility, Amount Outstanding	30
Line of Credit Facility, Maximum Amount Outstanding During Period	35
Line of Credit, Current	5
Mississippi Power [Member]
Credit arrangements by company
Expires, 2013	110	[1]
Expires, 2014	25	[1]
Expires, 2016	165	[1]
Expires, 2018	0	[1]
Total	300
Unused	300
Executable Term-Loans, One Year	25
Executable Term-Loans, Two Years	40
Due Within One Year, Term Out	65
Due Within One Year, No Term Out	70
Southern Power [Member]
Credit arrangements by company
Expires, 2013	0	[1]
Expires, 2014	0	[1]
Expires, 2016	0	[1]
Expires, 2018	500	[1]
Total	500
Unused	500
Executable Term-Loans, One Year	0
Executable Term-Loans, Two Years	0
Due Within One Year, Term Out	0
Due Within One Year, No Term Out	0
Other Subsidiaries [Member]
Credit arrangements by company
Expires, 2013	50	[1]
Expires, 2014	0	[1]
Expires, 2016	0	[1]
Expires, 2018	0	[1]
Total	50
Unused	50
Executable Term-Loans, One Year	25
Executable Term-Loans, Two Years	0
Due Within One Year, Term Out	25
Due Within One Year, No Term Out	25
SEGCO [Member]
Credit arrangements by company
Line of Credit Facility, Amount Outstanding	$ 25
Number Of Credit Arrangements	2

[1] No credit arrangements expire in 2015 or 2017.

XML

Derivatives - Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 MMBTU
Derivatives (Textual) [Abstract]
Expected volume of natural gas subject to option to sell back excess gas due to operational constraints	11,000,000
Maximum potential collateral requirements arising the from credit-risk-related contingent features	$ 1,000,000
Alabama Power [Member]
Derivatives (Textual) [Abstract]
Expected volume of natural gas subject to option to sell back excess gas due to operational constraints	1,000,000
Maximum potential collateral requirements arising the from credit-risk-related contingent features	1,000,000
Georgia Power [Member]
Derivatives (Textual) [Abstract]
Expected volume of natural gas subject to option to sell back excess gas due to operational constraints	5,000,000
Maximum potential collateral requirements arising the from credit-risk-related contingent features	1,000,000
Gulf Power [Member]
Derivatives (Textual) [Abstract]
Expected volume of natural gas subject to option to sell back excess gas due to operational constraints	1,000,000
Maximum potential collateral requirements arising the from credit-risk-related contingent features	1,000,000
Mississippi Power [Member]
Derivatives (Textual) [Abstract]
Expected volume of natural gas subject to option to sell back excess gas due to operational constraints	1,000,000
Maximum potential collateral requirements arising the from credit-risk-related contingent features	1,000,000
Southern Power [Member]
Derivatives (Textual) [Abstract]
Expected volume of natural gas subject to option to sell back excess gas due to operational constraints	3,000,000
Maximum potential collateral requirements arising the from credit-risk-related contingent features	$ 1,000,000

XML

Introduction

3 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

INTRODUCTION

INTRODUCTION

The condensed quarterly financial statements of each registrant included herein have been prepared by such registrant, without audit, pursuant to the rules and regulations of the SEC. The Condensed Balance Sheets as of December 31, 2012 have been derived from the audited financial statements of each registrant. In the opinion of each registrant's management, the information regarding such registrant furnished herein reflects all adjustments, which, except as otherwise disclosed, are of a normal recurring nature, necessary to present fairly the results of operations for the periods ended March 31, 2013 and 2012. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations, although each registrant believes that the disclosures regarding such registrant are adequate to make the information presented not misleading. Disclosures which would substantially duplicate the disclosures in the Form 10-K (with respect to Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power) and the Form 10-K/A (with respect to Mississippi Power) and details which have not changed significantly in amount or composition since the filings of the Form 10-K or the Form 10-K/A, as applicable, are generally omitted from this Quarterly Report on Form 10-Q unless specifically required by GAAP. Therefore, these Condensed Financial Statements should be read in conjunction with the financial statements and the notes thereto included in the Form 10-K (with respect to Southern Company, Alabama Power, Georgia Power, Gulf Power, and Southern Power) and the Form 10-K/A (with respect to Mississippi Power). Due to the seasonal variations in the demand for energy, operating results for the periods presented are not necessarily indicative of the operating results to be expected for the full year.

Certain prior year data presented in the financial statements have been reclassified to conform to the current year presentation.

XML

Derivatives - Balance Sheet Presentation (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	$ 60	$ 36
Derivative Liability, Fair Value	63	111
Hedging Instruments for Regulatory Purposes [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	45	23
Derivative Liability, Fair Value	62	109
Cash Flow and Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	10	10
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	5	3
Derivative Liability, Fair Value		2
Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	36	74
Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	26	35
Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	25	10
Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	20	13
Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	1	1
Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value		1
Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	2	2
Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Assets from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	3	1
Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	7	7
Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	3	3
Alabama Power [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	12	5
Derivative Liability, Fair Value	7	18
Alabama Power [Member] | Hedging Instruments for Regulatory Purposes [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	12	5
Derivative Liability, Fair Value	7	18
Alabama Power [Member] | Cash Flow and Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Alabama Power [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value		0
Alabama Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	5	14
Alabama Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	2	4
Alabama Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	7	2
Alabama Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	5	3
Alabama Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	0	0
Alabama Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value		0
Alabama Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Alabama Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Assets from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Alabama Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Alabama Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Georgia Power [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	13	11
Derivative Liability, Fair Value	28	45
Georgia Power [Member] | Hedging Instruments for Regulatory Purposes [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	13	11
Derivative Liability, Fair Value	28	45
Georgia Power [Member] | Cash Flow and Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Georgia Power [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value		0
Georgia Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	17	30
Georgia Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	11	15
Georgia Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	6	6
Georgia Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	7	5
Georgia Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	0	0
Georgia Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value		0
Georgia Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Georgia Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Assets from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Georgia Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Georgia Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Gulf Power [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	14	4
Derivative Liability, Fair Value	16	27
Gulf Power [Member] | Hedging Instruments for Regulatory Purposes [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	14	4
Derivative Liability, Fair Value	16	27
Gulf Power [Member] | Cash Flow and Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Gulf Power [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value		0
Gulf Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	8	17
Gulf Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	8	10
Gulf Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	9	1
Gulf Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	5	3
Gulf Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	0	0
Gulf Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value		0
Gulf Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Gulf Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Assets from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Gulf Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Gulf Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Mississippi Power [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	6	3
Derivative Liability, Fair Value	11	19
Mississippi Power [Member] | Hedging Instruments for Regulatory Purposes [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	6	3
Derivative Liability, Fair Value	11	19
Mississippi Power [Member] | Cash Flow and Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Mississippi Power [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value		0
Mississippi Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	6	13
Mississippi Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	5	6
Mississippi Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	3	1
Mississippi Power [Member] | Energy-related derivatives [Member] | Hedging Instruments for Regulatory Purposes [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	3	2
Mississippi Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	0	0
Mississippi Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value		0
Mississippi Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Mississippi Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Assets from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Mississippi Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Mississippi Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Southern Power [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	5	3
Derivative Liability, Fair Value	1	2
Southern Power [Member] | Cash Flow and Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Southern Power [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	5	3
Derivative Liability, Fair Value		2
Southern Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Liabilities from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value	1	1
Southern Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred credits and liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value		1
Southern Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	2	2
Southern Power [Member] | Energy-related derivatives [Member] | Not Designated as Hedging Instrument [Member] | Assets from risk management activities [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	3	1
Southern Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	0	0
Southern Power [Member] | Interest Rate Contract [Member] | Cash Flow and Fair Value Hedging [Member] | Other deferred charges and assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	$ 0	$ 0

XML

Segment and Related Information (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Financial data for business segments

Financial data for business segments and products and services was as follows:

	Electric Utilities
	Traditional Operating Companies		Southern Power		Eliminations			Total		All Other			Eliminations			Consolidated
	(in millions)
Three Months Ended March 31, 2013:
Operating revenues	$	3,668	$	303	$	(86	)	$	3,885	$	35		$	(23	)	$	3,897
Segment net income (loss)(a)(b)	66		29		—			95		(16		)	2			81
Total assets at March 31, 2013	$	58,752	$	3,858	$	(109	)	$	62,501	$	1,075		$	(302	)	$	63,274
Three Months Ended March 31, 2012:
Operating revenues	$	3,449	$	254	$	(114	)	$	3,589	$	38		$	(23	)	$	3,604
Segment net income (loss)(a)	339		29		1			369		2			(3		)	368
Total assets at December 31, 2012	$	58,600	$	3,780	$	(129	)	$	62,251	$	1,116		$	(218	)	$	63,149

(a) After dividends on preferred and preference stock of subsidiaries.

(b) Segment net income (loss) for the three months ended March 31, 2013 includes a $540.0 million pre-tax charge ($333.5 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for additional information.

Financial data for products and services

Products and Services

	Electric Utilities' Revenues
	Retail		Wholesale		Other		Total
	(in millions)
Three Months Ended March 31, 2013	$	3,298	$	432	$	155	$	3,885
Three Months Ended March 31, 2012	3,092		349		148		3,589

XML

Derivatives (Tables)

3 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivatives

At March 31, 2013, the net volume of energy-related derivative contracts for natural gas positions for the Southern Company system, together with the longest hedge date over which the respective entity is hedging its exposure to the variability in future cash flows for forecasted transactions and the longest date for derivatives not designated as hedges, were as follows:

	Net Purchased mmBtu	Longest Hedge Date	Longest Non-Hedge Date
	(in millions)
Southern Company	259	2017	2017
Alabama Power	58	2017	—
Georgia Power	90	2017	—
Gulf Power	70	2017	—
Mississippi Power	36	2017	—
Southern Power	5	—	2017

Notional amount of interest rate derivatives

At March 31, 2013, the following interest rate derivatives were outstanding:

	Notional Amount		Interest Rate Received		Interest Rate Paid		Hedge Maturity Date	Fair Value Gain (Loss) March 31, 2013
	(in millions)							(in millions)
Fair value hedges of existing debt
Southern Company	$	350	4.15	%	3-month LIBOR  + 1.96%	(a)	May 2014	$	10

(a) Weighted average

Total deferred gains and losses are expected to be amortized into earnings

The following table reflects the estimated pre-tax gains (losses) that will be reclassified from AOCI to interest expense for the next 12-month period ending March 31, 2014, together with the longest date that total deferred gains and losses are expected to be amortized into earnings.

Registrant	Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014			Total Deferred Gains (Losses) Amortized  Through
	(in millions)
Southern Company	$	(12	)	2037
Alabama Power	(3		)	2035
Georgia Power	(3		)	2037
Gulf Power	(1		)	2020
Mississippi Power	(1		)	2022
Southern Power	(4		)	2016

Fair value of energy-related derivatives and interest rate derivatives

At March 31, 2013, the fair value of energy-related derivatives and interest rate derivatives was reflected in the balance sheets as follows:

Asset Derivatives at March 31, 2013
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Other current assets	$	25	$	7	$	6	$	9	$	3
Other deferred charges and assets	20		5		7		5		3
Total derivatives designated as hedging instruments for regulatory purposes	$	45	$	12	$	13	$	14	$	6	N/A
Derivatives designated as hedging instruments in cash flow and fair value hedges
Interest rate derivatives:
Other current assets	$	7	$	—	$	—	$	—	$	—	$	—
Other deferred charges and assets	3		—		—		—		—		—
Total derivatives designated as hedging instruments in cash flow and fair value hedges	$	10	$	—	$	—	$	—	$	—	$	—
Derivatives not designated as hedging instruments
Energy-related derivatives:
Assets from risk management activities	$	3	$	—	$	—	$	—	$	—	$	3
Other deferred charges and assets	2		—		—		—		—		2
Total derivatives not designated as hedging instruments	$	5	$	—	$	—	$	—	$	—	$	5
Total asset derivatives	$	60	$	12	$	13	$	14	$	6	$	5

Liability Derivatives at March 31, 2013
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Liabilities from risk management activities	$	36	$	5	$	17	$	8	$	6
Other deferred credits and liabilities	26		2		11		8		5
Total derivatives designated as hedging instruments for regulatory purposes	$	62	$	7	$	28	$	16	$	11	N/A
Derivatives not designated as hedging instruments
Energy-related derivatives:
Liabilities from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Total liability derivatives	$	63	$	7	$	28	$	16	$	11	$	1

At December 31, 2012, the fair value of energy-related derivatives and interest rate derivatives was reflected in the balance sheets as follows:

Asset Derivatives at December 31, 2012
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Other current assets	$	10	$	2	$	6	$	1	$	1
Other deferred charges and assets	13		3		5		3		2
Total derivatives designated as hedging instruments for regulatory purposes	$	23	$	5	$	11	$	4	$	3	N/A
Derivatives designated as hedging instruments in cash flow and fair value hedges
Interest rate derivatives:
Other current assets	$	7	$	—	$	—	$	—	$	—	$	—
Other deferred charges and assets	3		—		—		—		—		—
Total derivatives designated as hedging instruments in cash flow and fair value hedges	$	10	$	—	$	—	$	—	$	—	$	—
Derivatives not designated as hedging instruments
Energy-related derivatives:
Assets from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Other deferred charges and assets	2		—		—		—		—		2
Total derivatives not designated as hedging instruments	$	3	$	—	$	—	$	—	$	—	$	3
Total asset derivatives	$	36	$	5	$	11	$	4	$	3	$	3

Liability Derivatives at December 31, 2012
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Liabilities from risk management activities	$	74	$	14	$	30	$	17	$	13
Other deferred credits and liabilities	35		4		15		10		6
Total derivatives designated as hedging instruments for regulatory purposes	$	109	$	18	$	45	$	27	$	19	N/A
Derivatives not designated as hedging instruments
Energy-related derivatives:
Liabilities from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Other deferred credits and liabilities	1		—		—		—		—		1
Total derivatives not designated as hedging instruments	$	2	$	—	$	—	$	—	$	—	$	2
Total liability derivatives	$	111	$	18	$	45	$	27	$	19	$	2

Balance sheet offsetting

Balance Sheet Offsetting

The derivative contracts of Southern Company, the traditional operating companies, and Southern Power are not subject to master netting arrangements or similar agreements and are reported gross on each registrant's financial statements. Some of these energy-related and interest rate derivative contracts contain certain provisions that permit intra-contract netting of derivative receivables and payables for routine billing and offsets related to events of default and settlements. Amounts related to energy-related derivative contracts are presented in the following tables. Interest rate derivatives presented in the tables above do not have amounts available for offset and are therefore excluded from the offsetting disclosure tables below.

Derivative Contracts at March 31, 2013
	Fair Value
	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power			Southern   Power
	(in millions)
Assets
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	50		$	12		$	13		$	14		$	6		$	5
Gross amounts not offset in the Balance Sheet (b)	(39		)	(5		)	(13		)	(10		)	(5		)	(1		)
Net energy-related derivative assets	$	11		$	7		$	—		$	4		$	1		$	4
Liabilities
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	63		$	7		$	28		$	16		$	11		$	1
Gross amounts not offset in the Balance Sheet (b)	(39		)	(5		)	(13		)	(10		)	(5		)	(1		)
Net energy-related derivative liabilities	$	24		$	2		$	15		$	6		$	6		$	—

(a) None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

(b) Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

Derivative Contracts at December 31, 2012
	Fair Value
	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power			Southern   Power
	(in millions)
Assets
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	26		$	5		$	11		$	4		$	3		$	3
Gross amounts not offset in the Balance Sheet (b)	(23		)	(4		)	(11		)	(4		)	(2		)	(1		)
Net energy-related derivative assets	$	3		$	1		$	—		$	—		$	1		$	2
Liabilities
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	111		$	18		$	45		$	27		$	19		$	2
Gross amounts not offset in the Balance Sheet (b)	(23		)	(4		)	(11		)	(4		)	(2		)	(1		)
Net energy-related derivative liabilities	$	88		$	14		$	34		$	23		$	17		$	1

(a) None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

(b) Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

Pre-tax effect of unrealized derivative gains (losses)

At March 31, 2013 and December 31, 2012, the pre-tax effects of unrealized derivative gains (losses) arising from energy-related derivative instruments designated as regulatory hedging instruments and deferred on the balance sheets were as follows:

Regulatory Hedge Unrealized Gain (Loss) Recognized on the Balance Sheet at March 31, 2013
Derivative Category and Balance Sheet Location	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power
	(in millions)
Energy-related derivatives:
Other regulatory assets, current	$	(36	)	$	(5	)	$	(17	)	$	(8	)	$	(6	)
Other regulatory assets, deferred	(26		)	(2		)	(11		)	(8		)	(5		)
Other regulatory liabilities, current	25			7			6			9			3
Other regulatory liabilities, deferred	20			5			—			5			3
Other deferred credits and liabilities(a)	—			—			7			—			—
Total energy-related derivative gains (losses)	$	(17	)	$	5		$	(15	)	$	(2	)	$	(5	)

(a) Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities.

Regulatory Hedge Unrealized Gain (Loss) Recognized on the Balance Sheet at December 31, 2012
Derivative Category and Balance Sheet Location	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power
	(in millions)
Energy-related derivatives:
Other regulatory assets, current	$	(74	)	$	(14	)	$	(30	)	$	(17	)	$	(13	)
Other regulatory assets, deferred	(35		)	(4		)	(15		)	(10		)	(6		)
Other regulatory liabilities, current	10			2			6			1			1
Other regulatory liabilities, deferred	13			3			—			3			2
Other deferred credits and liabilities(a)	—			—			5			—			—
Total energy-related derivative gains (losses)	$	(86	)	$	(13	)	$	(34	)	$	(23	)	$	(16	)

(a) Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities

Pre-tax effect of derivatives designated as cash flow hedging instruments

For the three months ended March 31, 2013 and 2012, the pre-tax effects of interest rate derivatives designated as cash flow hedging instruments on the statements of income were as follows:

Derivatives in Cash Flow Hedging Relationships	Gain (Loss) Recognized in OCI on Derivative (Effective Portion)					Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
						Statements of Income Location	Amount
	2013		2012				2013			2012
	(in millions)						(in millions)
Southern Company
Interest rate derivatives	$	—	$	6		Interest expense, net of amounts capitalized	$	(5	)	$	(3	)
Alabama Power
Interest rate derivatives	$	—	$	7		Interest expense, net of amounts capitalized	$	(1	)	$	—
Georgia Power
Interest rate derivatives	$	—	$	—		Interest expense, net of amounts capitalized	$	(1	)	$	(1	)
Mississippi Power
Interest rate derivatives	$	—	$	(1	)	Interest expense, net of amounts capitalized	$	—		$	—
Southern Power
Interest rate derivatives	$	—	$	—		Interest expense, net of amounts capitalized	$	(3	)	$	(2	)

Fair value of derivative liabilities with contingent features

At March 31, 2013, the fair value of derivative liabilities with contingent features, by registrant, was as follows:

	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern Power
					(in millions)
Derivative liabilities	$	1	$	—	$	2	$	—	$	—	$	—

XML

Derivatives - Balance Sheet Offsetting (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Energy-related derivatives [Member]
Derivative [Line Items]
Offsetting Derivative Asset	$ 11		$ 3
Energy-related derivatives [Member] | Alabama Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	7		1
Energy-related derivatives [Member] | Georgia Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	0		0
Energy-related derivatives [Member] | Gulf Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	4		0
Energy-related derivatives [Member] | Mississippi Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	1		1
Energy-related derivatives [Member] | Southern Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	4		2
Energy-related derivatives [Member] | Net Amount Of Derivatives [Member]
Derivative [Line Items]
Offsetting Derivative Asset	50	[1]	26	[1]
Energy-related derivatives [Member] | Net Amount Of Derivatives [Member] | Alabama Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	12	[1]	5	[1]
Energy-related derivatives [Member] | Net Amount Of Derivatives [Member] | Georgia Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	13	[1]	11	[1]
Energy-related derivatives [Member] | Net Amount Of Derivatives [Member] | Gulf Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	14	[1]	4	[1]
Energy-related derivatives [Member] | Net Amount Of Derivatives [Member] | Mississippi Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	6	[1]	3	[1]
Energy-related derivatives [Member] | Net Amount Of Derivatives [Member] | Southern Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	5	[1]	3	[1]
Energy-related derivatives [Member] | Gross Amount Of Derivatives [Member]
Derivative [Line Items]
Offsetting Derivative Asset	(39)	[2]	(23)	[2]
Energy-related derivatives [Member] | Gross Amount Of Derivatives [Member] | Alabama Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	(5)	[2]	(4)	[2]
Energy-related derivatives [Member] | Gross Amount Of Derivatives [Member] | Georgia Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	(13)	[2]	(11)	[2]
Energy-related derivatives [Member] | Gross Amount Of Derivatives [Member] | Gulf Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	(10)	[2]	(4)	[2]
Energy-related derivatives [Member] | Gross Amount Of Derivatives [Member] | Mississippi Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	(5)	[2]	(2)	[2]
Energy-related derivatives [Member] | Gross Amount Of Derivatives [Member] | Southern Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	(1)	[2]	(1)	[2]
Interest Rate Contract [Member]
Derivative [Line Items]
Offsetting Derivative Asset	24		88
Interest Rate Contract [Member] | Alabama Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	2		14
Interest Rate Contract [Member] | Georgia Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	15		34
Interest Rate Contract [Member] | Gulf Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	6		23
Interest Rate Contract [Member] | Mississippi Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	6		17
Interest Rate Contract [Member] | Southern Power [Member]
Derivative [Line Items]
Offsetting Derivative Asset	0		1
Interest Rate Contract [Member] | Net Amount Of Derivatives [Member]
Derivative [Line Items]
Offsetting Derivative Liability	63	[1]	111	[1]
Interest Rate Contract [Member] | Net Amount Of Derivatives [Member] | Alabama Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	7	[1]	18	[1]
Interest Rate Contract [Member] | Net Amount Of Derivatives [Member] | Georgia Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	28	[1]	45	[1]
Interest Rate Contract [Member] | Net Amount Of Derivatives [Member] | Gulf Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	16	[1]	27	[1]
Interest Rate Contract [Member] | Net Amount Of Derivatives [Member] | Mississippi Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	11	[1]	19	[1]
Interest Rate Contract [Member] | Net Amount Of Derivatives [Member] | Southern Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	1	[1]	2	[1]
Interest Rate Contract [Member] | Gross Amount Of Derivatives [Member]
Derivative [Line Items]
Offsetting Derivative Liability	(39)	[2]	(23)	[2]
Interest Rate Contract [Member] | Gross Amount Of Derivatives [Member] | Alabama Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	(5)	[2]	(4)	[2]
Interest Rate Contract [Member] | Gross Amount Of Derivatives [Member] | Georgia Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	(13)	[2]	(11)	[2]
Interest Rate Contract [Member] | Gross Amount Of Derivatives [Member] | Gulf Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	(10)	[2]	(4)	[2]
Interest Rate Contract [Member] | Gross Amount Of Derivatives [Member] | Mississippi Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	(5)	[2]	(2)	[2]
Interest Rate Contract [Member] | Gross Amount Of Derivatives [Member] | Southern Power [Member]
Derivative [Line Items]
Offsetting Derivative Liability	$ (1)	[2]	$ (1)	[2]

[1] None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

[2] Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

XML

Contingencies and Regulatory Matters (Details) (USD $)	3 Months Ended		1 Months Ended	3 Months Ended			0 Months Ended	3 Months Ended							1 Months Ended		3 Months Ended	12 Months Ended												3 Months Ended			12 Months Ended			0 Months Ended				0 Months Ended
	Mar. 31, 2013	Mar. 31, 2013 Kivalina Case [Member]	Jul. 31, 2007 Alabama Power [Member]	Mar. 31, 2013 Alabama Power [Member] Coal_Fired_Generating_Facilities claim	Dec. 31, 2012 Alabama Power [Member]	Dec. 31, 2011 Alabama Power [Member]	Apr. 05, 2012 Georgia Power [Member]	Mar. 31, 2013 Georgia Power [Member] Coal_Fired_Generating_Facilities	Jan. 02, 2013 Georgia Power [Member]	Dec. 31, 2012 Georgia Power [Member]	Jan. 02, 2012 Georgia Power [Member]	Jan. 02, 2011 Georgia Power [Member]	Mar. 31, 2013 Gulf Power [Member]	Dec. 31, 2012 Gulf Power [Member]	Mar. 31, 2012 Mississippi Power [Member]	May 31, 2010 Mississippi Power [Member] MW	Mar. 31, 2013 Mississippi Power [Member] mi	Dec. 31, 2012 Mississippi Power [Member]	Mar. 15, 2013 Mississippi Power [Member]	Mar. 05, 2013 Mississippi Power [Member]	Jan. 18, 2013 Mississippi Power [Member]	Jul. 27, 2010 Mississippi Power [Member]	Mar. 31, 2013 Mississippi Power [Member] Maximum [Member]	Mar. 31, 2013 Mississippi Power [Member] MRA Revenue [Member]	Dec. 31, 2012 Mississippi Power [Member] MRA Revenue [Member]	Mar. 31, 2013 Mississippi Power [Member] MB Revenue [Member]	Dec. 31, 2012 Mississippi Power [Member] MB Revenue [Member]	Mar. 31, 2013 Gulf Power and Mississippi Power [Member]	Apr. 04, 2013 Plant Bowen [Member] Georgia Power [Member] MW	Mar. 31, 2013 Electricity Generation Plant, Non-Nuclear [Member] Mississippi Power [Member]	Mar. 31, 2013 Kemper IGCC [Member]	Mar. 31, 2013 Kemper IGCC [Member] Mississippi Power [Member]	Dec. 31, 2012 Kemper IGCC [Member] Mississippi Power [Member]	Mar. 31, 2013 Deferred Under Recovered Regulatory Clause Revenue [Member] Alabama Power [Member]	Mar. 31, 2013 Regulatory Clause Revenues, under-recovered [Member] Alabama Power [Member]	Apr. 17, 2013 Subsequent Event [Member] Georgia Power [Member] Purchased_Power_Agreement Property MW	May 09, 2013 Subsequent Event [Member] Gulf Power [Member]	May 09, 2013 Subsequent Event [Member] Gulf Power [Member] Minimum [Member]	May 09, 2013 Subsequent Event [Member] Gulf Power [Member] Maximum [Member]	Apr. 23, 2013 Subsequent Event [Member] Mississippi Power [Member]	Apr. 23, 2013 Subsequent Event [Member] Mississippi Power [Member] Cost Cap Exceptions [Member]	Apr. 17, 2013 Subsequent Event [Member] Plant Bowen [Member] Georgia Power [Member] MW
Environmental Matters
Number of coal fired generating facilities at which new source review violations occurred				5				3
Number of dismissed claims against Subsidiary				5
Total number of claims				8
Claims left for summary disposition or trial against Alabama Power				3
Civil penalties under Clean Air Act, per day, per violation, minimum	$ 25,000
Civil penalties under Clean Air Act, per day, per violation, maximum	37,500
Damages from lost property values and relocating village cost, lower range		95,000,000
Damages from lost property values and relocating village cost, upper range		400,000,000
Environmental remediation liability								18,000,000					57,000,000
Civil penalties per day violation rate								37,500
Number of times of punitive damages in comparison to cost incurred by Environmental Protection Agency								3
Damages awarded							27,000,000
Claims awarded to companies related to nuclear fuel disposal litigation			17,000,000
Amount have been recognized in the financial statements for the second claim								0
Increase in annual base wholesale revenues																	22,600,000
Increase in base rate under cost based electric tariff due to settlement																	24,200,000
Revised rate period																	12 months
Revenue to be received from increase in base rate																	18,000,000
Retail Regulatory Matters
Under recovered rate CNP balance				7,000,000		9,000,000
Under recovered rate CNP environmental balance				19,000,000	21,000,000
Under recovered certified power purchase agreements																																		11,000,000	8,000,000
Over recovered fuel costs				21,000,000									5,100,000	17,100,000
Under recovered regulatory clause revenues					4,000,000
Accumulated reserve balance for future storms				93,000,000	103,000,000
Over recovered fuel cost balance								182,000,000		230,000,000
Capacity Of Units Approved For Decertification Of Units																																										32
Number of wind PPAs																																				2
Number of wind farms																																				2
Energy from wind-powered generating facilities																																				250
Capacity of small power production facility																																				50
Additional contractual obligations in 2015																																				13,000,000
Additional contractual obligations in 2016																																				47,000,000
Additional contractual obligations in 2017																																				48,000,000
Additional contractual obligations thereafter																																				1,300,000,000
Proportionate share owed in consortium agreement								45.70%
Increase In NCCR Tariff									50,000,000		35,000,000	223,000,000
Amortization to earnings of financing costs capitalized over the five year period								91,000,000
Amortization to earnings of financing costs capitalized, amortization term								5 years
Costs included in CWIP								50,000,000									2,290,000,000
Construction and capital costs included in semi-annual construction monitoring report								2,000,000,000		200,000,000
Increase (decrease) in projected certified construction capital costs								5.00%
Estimated In-service Capital Cost								4,800,000,000
Cost incurred by Mississippi Power associated with plant including regulatory filing costs								2,000,000,000
Reduction in projected in-service cost due to recovered cost								425,000,000
Number Of Days Until Request Base Rate Change																																					60 days
Proposed Change in Annual Revenues																																						75,000,000	80,000,000
Over recovered purhcased power capacity costs													1,800,000
Over recovered purchased power capacity costs														800,000
Under recovered environmental cost													8,900,000	1,900,000
Under recovered energy conservation costs													3,000,000	800,000
Annual PEP Filing Rate Increase																				1.925%	1.99%
Annual PEP Filing Rate Increase Amount																				15,300,000	15,800,000
Potential additional revenues in 2013 as a result of late implementation of the 2013 PEP rate increase																	3,300,000
Annual PEP lookback refund to customers																			4,700,000
Ownership percentage in scrubber project													50.00%				50.00%
Estimated cost of scrubber project																	330,000,000											660,000,000
Scrubber project expenditures amount																	91,600,000											183,200,000
Annual adjustment in retail fuel cost recovery factor, percentage decrease																					4.70%
Annual adjustment in retail fuel cost recovery factor, amount																					35,500,000
Amount of over recovered retail fuel costs included in balance sheets																	60,900,000	56,600,000
Amount of over recovered fuel costs																								18,100,000	19,000,000	1,700,000	2,100,000
Amount of under recovered emissions allowance costs																	400,000	400,000
Storm reserve balance																	57,200,000
Integrated Coal Gasification Combined Cycle [Abstract]
Plant Capacity Under Coal Gasification Combined Cycle Technology																582
Co Two Pipeline Infrastructure																	61
Estimated Cost																														2,400,000,000		2,880,000,000
Costs associated with CCP12 grant funds																	245,000,000
Maximum Cap Construction Cost																																2,410,000,000								3,420,000,000
Estimated Cost of Pipeline Infrastructure																	84,400,000																								132,000,000
Cost Of Lignite Mine																	188,900,000																								245,000,000
AFUDC Cost																	156,400,000																								324,000,000
General Exceptions																	43,100,000																								102,000,000
Pre-Tax Charge Of Income																															540,000,000	462,000,000	78,000,000
After Tax Charge To Income	16,000,000																														333,500,000	285,300,000	48,200,000
Costs included in CWIP								50,000,000									2,290,000,000
Cost deferred in other regulatory assets																	43,400,000
Other deferred charges and assets	3,800,000																3,800,000
Previously expensed																	1,000,000
Settlement Agreement To Increase Rates																							172,000,000
Collaboration Period To File Settlement Agreement																	3 months
Beginning Period Of Operation Of Plant																	7 years
Period Of Time For Decision On Rate Recovery Plan Within Filing																	4 months
Prudence Review Of Plant Cost Within Settlement Agreement																	6 months
Increase Retail Rates In Year One																	15.00%
Increase Retail Rates In Year Two																	3.00%
Settlement Agreement Collection Amount To Mitigate Rate Impact Year Two																				156,000,000
Settlement Agreement Collection Amount To Mitigate Rate Impact Year One																				126,000,000
Reduced percentage interest transferred under asset purchase agreement																		15.00%
Purchase of Interest																		17.50%				17.50%
Deposit received																	150,000,000
Maximum period to refund deposit upon termination of asset purchase agreement															60 days
Maximum period of discretion in the event senior unsecured credit rating falls																	15 days
Internal Revenue Code Section Forty Eight Tax Credits Phase I																	133,000,000
Internal Revenue Code Section Forty Eight Tax Credits Phase I I																	279,000,000
Minimum percentage of carbon dioxide that must be capture and sequester to remain eligible for the phase II tax credits																	65.00%
Tax Credit Carryforward, Amount																	412,000,000
Unusable Tax Credits Until Future Period																	$ 178,800,000
Carry Forward For Unused Tax Credits																	20 years
Additional Bonus Depreciation For Property Acquired Future Periods																	50.00%
Electric Generating Units, Capacity																													1,400

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Fair Value, Measurements, Recurring [Member]
Assets:
Energy-related derivatives	$ 50
Interest rate derivatives	10
Nuclear decommissioning trusts	1,364	[1]
Cash equivalents	223
Other	24
Fair value assets, total	1,671
Liabilities:
Energy-related derivatives	63
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Energy-related derivatives	0
Interest rate derivatives	0
Nuclear decommissioning trusts	526	[1]
Cash equivalents	223
Other	9
Fair value assets, total	758
Liabilities:
Energy-related derivatives	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Energy-related derivatives	50
Interest rate derivatives	10
Nuclear decommissioning trusts	838	[1]
Cash equivalents	0
Other	0
Fair value assets, total	898
Liabilities:
Energy-related derivatives	63
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Energy-related derivatives	0
Interest rate derivatives	0
Nuclear decommissioning trusts	0	[1]
Cash equivalents	0
Other	15
Fair value assets, total	15
Liabilities:
Energy-related derivatives	0
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Energy-related derivatives	12
Fair value assets, total	652
Liabilities:
Energy-related derivatives	7
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	389	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	86	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	29	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	101	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	25	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	10	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Energy-related derivatives	0
Fair value assets, total	350
Liabilities:
Energy-related derivatives	0
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	320	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	30	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Energy-related derivatives	12
Fair value assets, total	302
Liabilities:
Energy-related derivatives	7
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	69	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	56	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	29	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	101	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	25	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	10	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Energy-related derivatives	0
Fair value assets, total	0
Liabilities:
Energy-related derivatives	0
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Alabama Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	0	[2]
Georgia Power [Member]
Assets:
Nuclear decommissioning trusts	68
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Energy-related derivatives	13
Cash equivalents	27
Fair value assets, total	764
Liabilities:
Energy-related derivatives	28
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	177	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	120	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	130	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member]
Assets:
Nuclear decommissioning trusts	28	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	130	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	121	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	18	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	27
Fair value assets, total	203
Liabilities:
Energy-related derivatives	0
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	176	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Municipal bonds [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Energy-related derivatives	13
Cash equivalents	0
Fair value assets, total	561
Liabilities:
Energy-related derivatives	28
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	1	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	120	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	130	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Municipal bonds [Member]
Assets:
Nuclear decommissioning trusts	28	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	130	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	121	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	18	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	0
Fair value assets, total	0
Liabilities:
Energy-related derivatives	0
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Domestic Equity [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Foreign Equity [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury and government agency securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Municipal bonds [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate bonds [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage and asset backed securities [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Georgia Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other investments [Member]
Assets:
Nuclear decommissioning trusts	0	[2],[3]
Gulf Power [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Energy-related derivatives	14
Cash equivalents	16
Fair value assets, total	30
Liabilities:
Energy-related derivatives	16
Gulf Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	16
Fair value assets, total	16
Liabilities:
Energy-related derivatives	0
Gulf Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Energy-related derivatives	14
Cash equivalents	0
Fair value assets, total	14
Liabilities:
Energy-related derivatives	16
Gulf Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	0
Fair value assets, total	0
Liabilities:
Energy-related derivatives	0
Mississippi Power [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Energy-related derivatives	6
Cash equivalents	122
Fair value assets, total	128
Liabilities:
Energy-related derivatives	11
Mississippi Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	122
Fair value assets, total	122
Liabilities:
Energy-related derivatives	0
Mississippi Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Energy-related derivatives	6
Cash equivalents	0
Fair value assets, total	6
Liabilities:
Energy-related derivatives	11
Mississippi Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	0
Fair value assets, total	0
Liabilities:
Energy-related derivatives	0
Southern Power [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Energy-related derivatives	5
Cash equivalents	27
Fair value assets, total	32
Liabilities:
Energy-related derivatives	1
Southern Power [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	27
Fair value assets, total	27
Liabilities:
Energy-related derivatives	0
Southern Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Energy-related derivatives	5
Cash equivalents	0
Fair value assets, total	5
Liabilities:
Energy-related derivatives	1
Southern Power [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Energy-related derivatives	0
Cash equivalents	0
Fair value assets, total	0
Liabilities:
Energy-related derivatives	$ 0

[1] For additional detail, see the nuclear decommissioning trusts sections for Alabama Power and Georgia Power in this table.

[2] Excludes receivables related to investment income, pending investment sales, and payables related to pending investment purchases.

[3] Includes the investment securities pledged to creditors and cash collateral received and excludes payables related to the securities lending program. As of March 31, 2013, approximately $68 million of the fair market value of Georgia Power's nuclear decommissioning trust funds' securities were on loan and pledged to creditors under the funds' managers' securities lending program.

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Condensed Consolidated Balance Sheets (Unaudited) - Parenthetical (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Common stock, par value per share	$ 5	$ 5
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued	880,000,000	878,000,000
Treasury shares at cost	10,100,000	10,000,000
Alabama Power [Member]
Common stock, par value per share	$ 40	$ 40
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares outstanding	30,537,500	30,537,500
Georgia Power [Member]
Common stock, no par value	$ 0	$ 0
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares outstanding	9,261,500	9,261,500
Gulf Power [Member]
Common stock, no par value	$ 0	$ 0
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares outstanding	4,942,717	4,542,717
Mississippi Power [Member]
Common stock, no par value	$ 0	$ 0
Common stock, shares authorized	1,130,000	1,130,000
Common stock, shares outstanding	1,121,000	1,121,000
Southern Power [Member]
Amortization expense on other intangible assets	$ 3,759	$ 3,141
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares outstanding	1,000	1,000

XML

Fair Value Measurements - Fair Value Measurements Calculated at Net Asset Value Per Share (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Foreign Equity [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	$ 120,000,000
Unfunded Commitments	0
Redemption Frequency	Monthly
Redemption Notice Period, Description	5 days
Foreign Equity [Member] | Georgia Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	120,000,000
Unfunded Commitments	0
Redemption Frequency	Monthly
Redemption Notice Period, Description	5 days
Corporate bonds - commingled funds [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	7,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	1 to 3 days
Corporate bonds - commingled funds [Member] | Georgia Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	7,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Other - commingled funds [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	74,000,000
Unfunded Commitments	0
Redemption Frequency	Daily/Monthly
Redemption Notice Period, Description	Daily/7 days
Other - commingled funds [Member] | Alabama Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	56,000,000
Unfunded Commitments	0
Redemption Frequency	Daily/Monthly
Redemption Notice Period, Description	Daily/7 days
Other - commingled funds [Member] | Georgia Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	18,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Trust owned life insurance [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	100,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	15 days
Trust owned life insurance [Member] | Alabama Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	100,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	15 days
Money market funds [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	223,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Money market funds [Member] | Georgia Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	27,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Money market funds [Member] | Gulf Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	16,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Money market funds [Member] | Mississippi Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	122,000,000
Unfunded Commitments	0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Money market funds [Member] | Southern Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Fair Value	27,000,000
Unfunded Commitments	$ 0
Redemption Frequency	Daily
Redemption Notice Period, Description	Not applicable
Minimum [Member] | Corporate bonds - commingled funds [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	1 day
Maximum [Member] | Foreign Equity [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	5 days
Maximum [Member] | Foreign Equity [Member] | Georgia Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	5 days
Maximum [Member] | Corporate bonds - commingled funds [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	3 days
Maximum [Member] | Other - commingled funds [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	7 days
Maximum [Member] | Other - commingled funds [Member] | Alabama Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	7 days
Maximum [Member] | Trust owned life insurance [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	15 days
Maximum [Member] | Trust owned life insurance [Member] | Alabama Power [Member]
Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments
Redemption Notice Period	15 days

XML

Effective Tax Rate and Unrecognized Tax Benefits - Impact on Effective Tax Rate (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Impact on effective tax rate
Tax positions impacting the effective tax rate	$ 5	$ 5
Tax positions not impacting the effective tax rate	68	65
Balance of unrecognized tax benefits	73	70
Georgia Power [Member]
Impact on effective tax rate
Balance of unrecognized tax benefits	$ 24	$ 23

XML

Condensed Consolidated Statements of Income (Unaudited) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Operating Revenues:
Retail revenues	$ 3,298,000,000		$ 3,092,000,000
Wholesale revenues	432,000,000		349,000,000
Other electric revenues	155,000,000		148,000,000
Other revenues	12,000,000		15,000,000
Total operating revenues	3,897,000,000		3,604,000,000
Operating Expenses:
Fuel	1,262,000,000		1,064,000,000
Purchased power	95,000,000		141,000,000
Other operations and maintenance	974,000,000		967,000,000
Depreciation and amortization	466,000,000		441,000,000
Taxes other than income taxes	235,000,000		225,000,000
Estimated loss on Kemper IGCC	540,000,000		0
Total operating expenses	3,572,000,000		2,838,000,000
Operating Income	325,000,000		766,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	41,000,000		31,000,000
Leveraged lease income (loss)	(21,000,000)		6,000,000
Interest expense, net of amounts capitalized	(211,000,000)		(211,000,000)
Other income (expense), net	(6,000,000)		(8,000,000)
Total other income and (expense)	(197,000,000)		(182,000,000)
Earnings Before Income Taxes	128,000,000		584,000,000
Income taxes	31,000,000		200,000,000
Consolidated Net Income	97,000,000		384,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	16,000,000		16,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	81,000,000	[1],[2]	368,000,000	[1]
Earnings per share (EPS) -
Basic EPS (in dollars per share)	$ 0.09		$ 0.42
Diluted EPS (in dollars per share)	$ 0.09		$ 0.42
Average number of shares of common stock outstanding (in millions)
Basic (in shares)	870		868
Diluted (in shares)	875		877
Cash dividends paid per share of common stock	$ 0.4900		$ 0.4725
Alabama Power [Member]
Operating Revenues:
Retail revenues	1,141,000,000		1,092,000,000
Wholesale revenues, non-affiliates	59,000,000		61,000,000
Wholesale revenues, affiliates	56,000,000		14,000,000
Other revenues	52,000,000		49,000,000
Total operating revenues	1,308,000,000		1,216,000,000
Operating Expenses:
Fuel	372,000,000		306,000,000
Purchased power, non-affiliates	20,000,000		15,000,000
Purchased power, affiliates	31,000,000		40,000,000
Other operations and maintenance	330,000,000		321,000,000
Depreciation and amortization	158,000,000		157,000,000
Taxes other than income taxes	90,000,000		86,000,000
Total operating expenses	1,001,000,000		925,000,000
Operating Income	307,000,000		291,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	8,000,000		5,000,000
Interest expense, net of amounts capitalized	(66,000,000)		(73,000,000)
Other income (expense), net	(1,000,000)		(3,000,000)
Total other income and (expense)	(59,000,000)		(71,000,000)
Earnings Before Income Taxes	248,000,000		220,000,000
Income taxes	97,000,000		84,000,000
Consolidated Net Income	151,000,000		136,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	10,000,000		10,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	141,000,000		126,000,000
Georgia Power [Member]
Operating Revenues:
Retail revenues	1,729,000,000		1,594,000,000
Wholesale revenues, non-affiliates	62,000,000		66,000,000
Wholesale revenues, affiliates	6,000,000		3,000,000
Other revenues	85,000,000		82,000,000
Total operating revenues	1,882,000,000		1,745,000,000
Operating Expenses:
Fuel	519,000,000		440,000,000
Purchased power, non-affiliates	50,000,000		93,000,000
Purchased power, affiliates	175,000,000		159,000,000
Other operations and maintenance	431,000,000		434,000,000
Depreciation and amortization	200,000,000		188,000,000
Taxes other than income taxes	95,000,000		87,000,000
Total operating expenses	1,470,000,000		1,401,000,000
Operating Income	412,000,000		344,000,000
Other Income and (Expense):
Allowance for equity funds used during construction	6,000,000		13,000,000
Interest expense, net of amounts capitalized	(91,000,000)		(91,000,000)
Other income (expense), net	(2,000,000)		(3,000,000)
Total other income and (expense)	(87,000,000)		(81,000,000)
Earnings Before Income Taxes	325,000,000		263,000,000
Income taxes	124,000,000		92,000,000
Consolidated Net Income	201,000,000		171,000,000
Dividends on Preferred and Preference Stock of Subsidiaries	4,000,000		4,000,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	197,000,000		167,000,000
Gulf Power [Member]
Operating Revenues:
Retail revenues	259,877,000		238,520,000
Wholesale revenues, non-affiliates	21,208,000		27,118,000
Wholesale revenues, affiliates	29,455,000		36,364,000
Other revenues	15,734,000		14,243,000
Total operating revenues	326,274,000		316,245,000
Operating Expenses:
Fuel	120,846,000		121,088,000
Purchased power, non-affiliates	11,135,000		11,225,000
Purchased power, affiliates	3,312,000		2,513,000
Other operations and maintenance	78,662,000		75,230,000
Depreciation and amortization	37,053,000		33,307,000
Taxes other than income taxes	23,626,000		23,784,000
Total operating expenses	274,634,000		267,147,000
Operating Income	51,640,000		49,098,000
Other Income and (Expense):
Allowance for equity funds used during construction	1,134,000		1,237,000
Interest expense, net of amounts capitalized	(14,369,000)		(15,368,000)
Other income (expense), net	(976,000)		(1,009,000)
Total other income and (expense)	(14,211,000)		(15,140,000)
Earnings Before Income Taxes	37,429,000		33,958,000
Income taxes	14,086,000		11,741,000
Consolidated Net Income	23,343,000		22,217,000
Dividends on Preferred and Preference Stock of Subsidiaries	1,551,000		1,551,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	21,792,000		20,666,000
Mississippi Power [Member]
Operating Revenues:
Retail revenues	168,310,000		166,271,000
Wholesale revenues, non-affiliates	65,109,000		54,231,000
Wholesale revenues, affiliates	8,341,000		4,040,000
Other revenues	4,174,000		4,172,000
Total operating revenues	245,934,000		228,714,000
Operating Expenses:
Fuel	104,564,000		88,619,000
Purchased power, non-affiliates	1,367,000		1,943,000
Purchased power, affiliates	9,689,000		8,860,000
Other operations and maintenance	54,812,000		54,895,000
Depreciation and amortization	23,233,000		22,481,000
Taxes other than income taxes	19,417,000		21,703,000
Estimated loss on Kemper IGCC	462,000,000		0
Total operating expenses	675,082,000		198,501,000
Operating Income	(429,148,000)		30,213,000
Other Income and (Expense):
Allowance for equity funds used during construction	26,074,000		11,827,000
Interest expense, net of amounts capitalized	(10,409,000)		(7,805,000)
Other income (expense), net	(1,547,000)		(122,000)
Total other income and (expense)	14,118,000		3,900,000
Earnings Before Income Taxes	(415,030,000)		34,113,000
Income taxes	(169,142,000)		8,425,000
Consolidated Net Income	(245,888,000)		25,688,000
Dividends on Preferred and Preference Stock of Subsidiaries	433,000		433,000
Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries	(246,321,000)		25,255,000
Southern Power [Member]
Operating Revenues:
Wholesale revenues, non-affiliates	223,429,000		140,557,000
Wholesale revenues, affiliates	78,191,000		111,788,000
Other revenues	1,327,000		1,336,000
Total operating revenues	302,947,000		253,681,000
Operating Expenses:
Fuel	119,372,000		89,078,000
Purchased power, non-affiliates	14,573,000		20,650,000
Purchased power, affiliates	7,865,000		2,340,000
Other operations and maintenance	50,950,000		48,389,000
Depreciation and amortization	40,160,000		31,913,000
Taxes other than income taxes	5,354,000		4,968,000
Total operating expenses	238,274,000		197,338,000
Operating Income	64,673,000		56,343,000
Other Income and (Expense):
Interest expense, net of amounts capitalized	(20,394,000)		(13,642,000)
Other income (expense), net	(257,000)		30,000
Total other income and (expense)	(20,651,000)		(13,612,000)
Earnings Before Income Taxes	44,022,000		42,731,000
Income taxes	14,830,000		13,415,000
Consolidated Net Income	$ 29,192,000		$ 29,316,000

[1] After dividends on preferred and preference stock of subsidiaries

[2] Segment net income (loss) for the three months ended March 31, 2013 includes a $540.0 million pre-tax charge ($333.5 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for additional information.

XML

Derivatives - Pre-tax Effects of Derivatives Designated as Cash Flow Hedging Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																																																																																3 Months Ended
	Mar. 31, 2013 Interest Expense [Member]	Mar. 31, 2012 Interest Expense [Member]	Mar. 31, 2013 Interest Expense [Member] Alabama Power [Member]	Mar. 31, 2012 Interest Expense [Member] Alabama Power [Member]	Mar. 31, 2013 Interest Expense [Member] Georgia Power [Member]	Mar. 31, 2012 Interest Expense [Member] Georgia Power [Member]	Mar. 31, 2013 Interest Expense [Member] Mississippi Power [Member]	Mar. 31, 2012 Interest Expense [Member] Mississippi Power [Member]	Mar. 31, 2013 Interest Expense [Member] Southern Power [Member]	Mar. 31, 2012 Interest Expense [Member] Southern Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member]	Dec. 31, 2012 Energy-related derivatives [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Alabama Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Alabama Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Georgia Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Georgia Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Gulf Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Gulf Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Mississippi Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Mississippi Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets current [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets current [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets current [Member] Alabama Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets current [Member] Alabama Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets current [Member] Georgia Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets current [Member] Georgia Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets current [Member] Gulf Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets current [Member] Gulf Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets current [Member] Mississippi Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets current [Member] Mississippi Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets deferred [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets deferred [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Alabama Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Alabama Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Georgia Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Georgia Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Gulf Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Gulf Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Mississippi Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory assets deferred [Member] Mississippi Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities current [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities current [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Alabama Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Alabama Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Georgia Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Georgia Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Gulf Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Gulf Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Mississippi Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities current [Member] Mississippi Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Alabama Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Alabama Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Georgia Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Georgia Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Gulf Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Gulf Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Mississippi Power [Member]	Dec. 31, 2012 Energy-related derivatives [Member] Other regulatory liabilities deferred [Member] Mississippi Power [Member]	Mar. 31, 2013 Energy-related derivatives [Member] Other deferred credits and liabilities [Member]		Dec. 31, 2012 Energy-related derivatives [Member] Other deferred credits and liabilities [Member]		Mar. 31, 2013 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Alabama Power [Member]		Dec. 31, 2012 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Alabama Power [Member]		Mar. 31, 2013 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Georgia Power [Member]		Dec. 31, 2012 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Georgia Power [Member]		Mar. 31, 2013 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Gulf Power [Member]		Dec. 31, 2012 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Gulf Power [Member]		Mar. 31, 2013 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Mississippi Power [Member]		Dec. 31, 2012 Energy-related derivatives [Member] Other deferred credits and liabilities [Member] Mississippi Power [Member]		Mar. 31, 2013 Interest rate derivatives [Member]	Mar. 31, 2012 Interest rate derivatives [Member]	Mar. 31, 2013 Interest rate derivatives [Member] Alabama Power [Member]	Mar. 31, 2012 Interest rate derivatives [Member] Alabama Power [Member]	Mar. 31, 2013 Interest rate derivatives [Member] Georgia Power [Member]	Mar. 31, 2012 Interest rate derivatives [Member] Georgia Power [Member]	Mar. 31, 2013 Interest rate derivatives [Member] Mississippi Power [Member]	Mar. 31, 2012 Interest rate derivatives [Member] Mississippi Power [Member]	Mar. 31, 2013 Interest rate derivatives [Member] Southern Power [Member]	Mar. 31, 2012 Interest rate derivatives [Member] Southern Power [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total energy-related derivative gains (losses)											$ (17)	$ (86)	$ 5	$ (13)	$ (15)	$ (34)	$ (2)	$ (23)	$ (5)	$ (16)	$ (36)	$ (74)	$ (5)	$ (14)	$ (17)	$ (30)	$ (8)	$ (17)	$ (6)	$ (13)	$ (26)	$ (35)	$ (2)	$ (4)	$ (11)	$ (15)	$ (8)	$ (10)	$ (5)	$ (6)	$ 25	$ 10	$ 7	$ 2	$ 6	$ 6	$ 9	$ 1	$ 3	$ 1	$ 20	$ 13	$ 5	$ 3	$ 0	$ 0	$ 5	$ 3	$ 3	$ 2	$ 0	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]	$ 7	[1]	$ 5	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]
Pre-tax effect of derivatives designated as cash flow hedging instruments
Gain (Loss) Recognized in OCI on Derivative (Effective Portion)																																																																																	0	6	0	7	0	0	0	(1)	0	0
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ (5)	$ (3)	$ (1)	$ 0	$ (1)	$ (1)	$ 0	$ 0	$ (3)	$ (2)

[1] Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities.

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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net cash paid for capitalized interest	$ 17,000	$ 21,000
Alabama Power [Member]
Net cash paid for capitalized interest	3,000	2,000
Georgia Power [Member]
Net cash paid for capitalized interest	3,000	6,000
Gulf Power [Member]
Net cash paid for capitalized interest	601	493
Mississippi Power [Member]
Interest paid	16,001	5,965
Net cash paid for capitalized interest	11,141	6,565
Southern Power [Member]
Net cash paid for capitalized interest	$ 0	$ 6,556

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Stockholders' Equity - Earnings per Share (Details) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings per Share
As reported shares	870	868
Effect of options and performance share award units	5	9
Diluted shares	875	877

XML

Derivatives (Policies)

3 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Energy-Related Derivatives and Interest Rate Derivatives

Interest Rate Derivatives

Southern Company and certain subsidiaries may also enter into interest rate derivatives to hedge exposure to changes in interest rates. The derivatives employed as hedging instruments are structured to minimize ineffectiveness. Derivatives related to existing variable rate securities or forecasted transactions are accounted for as cash flow hedges where the effective portion of the derivatives' fair value gains or losses is recorded in OCI and is reclassified into earnings at the same time the hedged transactions affect earnings, with any ineffectiveness recorded directly to earnings. Derivatives related to existing fixed rate securities are accounted for as fair value hedges, where the derivatives' fair value gains or losses and hedged items' fair value gains or losses are both recorded directly to earnings, providing an offset, with any difference representing ineffectiveness.

In addition to the volumes discussed in the above table, the traditional operating companies and Southern Power enter into physical natural gas supply contracts that provide the option to sell back excess gas due to operational constraints.

Energy-Related Derivatives

The traditional operating companies and Southern Power enter into energy-related derivatives to hedge exposures to electricity, gas, and other fuel price changes. However, due to cost-based rate regulations and other various cost recovery mechanisms, the traditional operating companies have limited exposure to market volatility in commodity fuel prices and prices of electricity. Each of the traditional operating companies manages fuel-hedging programs, implemented per the guidelines of their respective state PSCs, through the use of financial derivative contracts, which is expected to continue to mitigate price volatility. Southern Power has limited exposure to market volatility in commodity fuel prices and prices of electricity because its long-term sales contracts shift substantially all fuel cost responsibility to the purchaser. However, Southern Power has been and may continue to be exposed to market volatility in energy-related commodity prices as a result of sales of uncontracted generating capacity.

To mitigate residual risks relative to movements in electricity prices, the traditional operating companies and Southern Power may enter into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market. To mitigate residual risks relative to movements in gas prices, the traditional operating companies and Southern Power may enter into fixed-price contracts for natural gas purchases; however, a significant portion of contracts are priced at market.

Energy-related derivative contracts are accounted for under one of three methods:

• Regulatory Hedges — Energy-related derivative contracts which are designated as regulatory hedges relate primarily to the traditional operating companies' fuel hedging programs, where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as the underlying fuel is used in operations and ultimately recovered through the respective fuel cost recovery clauses.

• Cash Flow Hedges — Gains and losses on energy-related derivatives designated as cash flow hedges which are mainly used to hedge anticipated purchases and sales and are initially deferred in OCI before being recognized in the statements of income in the same period as the hedged transactions are reflected in earnings.

• Not Designated — Gains and losses on energy-related derivative contracts that are not designated or fail to qualify as hedges are recognized in the statements of income as incurred.

Some energy-related derivative contracts require physical delivery as opposed to financial settlement, and this type of derivative is both common and prevalent within the electric industry. When an energy-related derivative contract is settled physically, any cumulative unrealized gain or loss is reversed and the contract price is recognized in the respective line item representing the actual price of the underlying goods being delivered.

Foreign Currency Derivatives

Foreign Currency Derivatives

Southern Company and certain subsidiaries may enter into foreign currency derivatives to hedge exposure to changes in foreign currency exchange rates arising from purchases of equipment denominated in a currency other than U.S. dollars. Derivatives related to a firm commitment in a foreign currency transaction are accounted for as fair value hedges where the derivatives' fair value gains or losses and the hedged items' fair value gains or losses are both recorded directly to earnings. Derivatives related to a forecasted transaction are accounted for as a cash flow hedge where the effective portion of the derivatives' fair value gains or losses is recorded in OCI and is reclassified into earnings at the same time the hedged transactions affect earnings. Any ineffectiveness is typically recorded directly to earnings; however, Mississippi Power has regulatory approval allowing it to defer any ineffectiveness associated with firm commitments related to the Kemper IGCC to a regulatory asset. The derivatives employed as hedging instruments are structured to minimize ineffectiveness.

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Stockholders' Equity - Changes in Stockholders' Equity (Details) (USD $)	3 Months Ended				12 Months Ended
	Mar. 31, 2013		Mar. 31, 2012		Dec. 31, 2012
Changes in Stockholders' Equity
Beginning Balance	$ 19,004,000,000		$ 18,285,000,000		$ 18,285,000,000
Net Income After Dividends on Preferred and Preference Stock	81,000,000	[1],[2]	368,000,000	[1]
Other comprehensive income (loss)	4,000,000		6,000,000
Stock issued	99,000,000		157,000,000
Stock Repurchased During Period, Shares	0				9,000,000
Stock Repurchased During Period, Value	(18,000,000)
Cash dividends on common stock	(426,000,000)		(410,000,000)
Other	0		0
Ending Balance	18,744,000,000		18,406,000,000		19,004,000,000
Stock Issued During Period, Value, Employee Stock Purchase Plan	430,000,000
Number of Common shares Issued [Member]
Changes in Stockholders' Equity
Beginning Balance, Shares	877,803,000		865,664,000		865,664,000
Stock issued, shares	2,638,000		3,571,000
Stock Repurchased During Period, Shares	0
Ending Balance, Shares	880,441,000		869,235,000
Number of Common shares Treasury [Member]
Changes in Stockholders' Equity
Beginning Balance, Shares	10,035,000		539,000		539,000
Stock Repurchased During Period, Shares	0
Other, Shares	(15,000)		(6,000)
Ending Balance, Shares	10,050,000		545,000
Common Stockholders' Equity [Member]
Changes in Stockholders' Equity
Beginning Balance	18,297,000,000		17,578,000,000		17,578,000,000
Net Income After Dividends on Preferred and Preference Stock	81,000,000		368,000,000
Other comprehensive income (loss)	4,000,000		6,000,000
Stock issued	99,000,000		157,000,000
Stock Repurchased During Period, Value	(18,000,000)
Cash dividends on common stock	(426,000,000)		(410,000,000)
Other	0		0
Ending Balance	18,037,000,000		17,699,000,000
Preferred and Preference Stock of Subsidiaries [Member]
Changes in Stockholders' Equity
Beginning Balance	707,000,000		707,000,000		707,000,000
Net Income After Dividends on Preferred and Preference Stock	0		0
Other comprehensive income (loss)	0		0
Stock issued	0		0
Stock Repurchased During Period, Value	0
Cash dividends on common stock	0		0
Other	0		0
Ending Balance	$ 707,000,000		$ 707,000,000

[1] After dividends on preferred and preference stock of subsidiaries

[2] Segment net income (loss) for the three months ended March 31, 2013 includes a $540.0 million pre-tax charge ($333.5 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for additional information.

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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Earnings per Share

Shares used to compute diluted earnings per share were as follows:

	Three Months Ended March 31, 2013	Three Months Ended March 31, 2012
	(in millions)
As reported shares	870	868
Effect of options and performance share award units	5	9
Diluted shares	875	877

Changes in Stockholders' Equity

The following table presents year-to-date changes in stockholders' equity of Southern Company:

	Number of Common Shares			Common Stockholders' Equity			Preferred and Preference Stock of Subsidiaries		Total Stockholders' Equity
	Issued	Treasury
	(in thousands)						(in millions)
Balance at December 31, 2012	877,803	(10,035	)	$	18,297		$	707	$	19,004
Net income after dividends on preferred and preference stock	—	—		81			—		81
Other comprehensive income (loss)	—	—		4			—		4
Stock issued	2,638	—		99			—		99
Stock repurchased, at cost	—	—		(18		)	—		(18		)
Cash dividends on common stock	—	—		(426		)	—		(426		)
Other	—	(15	)	—			—		—
Balance at March 31, 2013	880,441	(10,050	)	$	18,037		$	707	$	18,744
Balance at December 31, 2011	865,664	(539	)	$	17,578		$	707	$	18,285
Net income after dividends on preferred and preference stock	—	—		368			—		368
Other comprehensive income (loss)	—	—		6			—		6
Stock issued	3,571	—		157			—		157
Cash dividends on common stock	—	—		(410		)	—		(410		)
Other	—	(6	)	—			—		—
Balance at March 31, 2012	869,235	(545	)	$	17,699		$	707	$	18,406

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Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 515,000,000	$ 628,000,000
Restricted cash and cash equivalents	25,000,000	7,000,000
Receivables --
Customer accounts receivable	1,011,000,000	961,000,000
Unbilled revenues	390,000,000	441,000,000
Under recovered regulatory clause revenues	26,000,000	29,000,000
Other accounts and notes receivable	223,000,000	235,000,000
Accumulated provision for uncollectible accounts	(15,000,000)	(17,000,000)
Fossil fuel stock, at average cost	1,783,000,000	1,819,000,000
Materials and supplies, at average cost	940,000,000	1,000,000,000
Vacation pay	166,000,000	165,000,000
Prepaid expenses	693,000,000	657,000,000
Other regulatory assets, current	115,000,000	163,000,000
Other current assets	60,000,000	74,000,000
Total current assets	5,932,000,000	6,162,000,000
Property, Plant, and Equipment:
In service	63,586,000,000	63,251,000,000
Less accumulated provision for depreciation	22,219,000,000	21,964,000,000
Plant in service, net of depreciation	41,367,000,000	41,287,000,000
Other utility plant, net	266,000,000	263,000,000
Nuclear fuel, at amortized cost	861,000,000	851,000,000
Construction work in progress	6,193,000,000	5,989,000,000
Total property, plant, and equipment	48,687,000,000	48,390,000,000
Other Property and Investments:
Nuclear decommissioning trusts, at fair value	1,365,000,000	1,303,000,000
Leveraged leases	648,000,000	670,000,000
Miscellaneous property and investments	217,000,000	216,000,000
Total other property and investments	2,230,000,000	2,189,000,000
Deferred Charges and Other Assets:
Deferred charges related to income taxes	1,387,000,000	1,385,000,000
Unamortized debt issuance expense	144,000,000	133,000,000
Unamortized loss on reacquired debt	303,000,000	309,000,000
Other regulatory assets, deferred	4,021,000,000	4,032,000,000
Other deferred charges and assets	570,000,000	549,000,000
Total deferred charges and other assets	6,425,000,000	6,408,000,000
Total Assets	63,274,000,000	63,149,000,000
Current Liabilities:
Securities due within one year	1,769,000,000	2,335,000,000
Interest-bearing refundable deposit related to asset sale	150,000,000	150,000,000
Notes payable	1,294,000,000	825,000,000
Accounts payable	1,369,000,000	1,387,000,000
Customer deposits	376,000,000	370,000,000
Accrued taxes --
Accrued income taxes	38,000,000	10,000,000
Other accrued taxes	208,000,000	391,000,000
Accrued interest	249,000,000	237,000,000
Accrued vacation pay	212,000,000	212,000,000
Accrued compensation	161,000,000	433,000,000
Liabilities from risk management activities	37,000,000	75,000,000
Other regulatory liabilities, current	114,000,000	107,000,000
Other current liabilities	462,000,000	482,000,000
Total current liabilities	6,439,000,000	7,014,000,000
Long-term Debt	20,223,000,000	19,274,000,000
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	9,842,000,000	9,938,000,000
Deferred credits related to income taxes	207,000,000	211,000,000
Accumulated deferred investment tax credits	946,000,000	894,000,000
Employee benefit obligations	2,526,000,000	2,540,000,000
Asset retirement obligations	1,807,000,000	1,748,000,000
Other cost of removal obligations	1,220,000,000	1,194,000,000
Other regulatory liabilities, deferred	312,000,000	289,000,000
Other deferred credits and liabilities	633,000,000	668,000,000
Total deferred credits and other liabilities	17,493,000,000	17,482,000,000
Total Liabilities	44,155,000,000	43,770,000,000
Redeemable Preferred Stock of Subsidiaries	375,000,000	375,000,000
Common Stockholders' Equity:
Common stock	4,400,000,000	4,389,000,000
Paid-in capital	4,926,000,000	4,855,000,000
Treasury, at cost	(451,000,000)	(450,000,000)
Retained earnings	9,281,000,000	9,626,000,000
Accumulated other comprehensive loss	(119,000,000)	(123,000,000)
Total common stockholders' equity	18,037,000,000	18,297,000,000
Preferred and Preference Stock of Subsidiaries	707,000,000	707,000,000
Total Stockholders' Equity	18,744,000,000	19,004,000,000
Total Liabilities and Stockholders' Equity	63,274,000,000	63,149,000,000
Alabama Power [Member]
Current Assets:
Cash and cash equivalents	65,000,000	137,000,000
Receivables --
Customer accounts receivable	349,000,000	321,000,000
Unbilled revenues	122,000,000	138,000,000
Under recovered regulatory clause revenues	11,000,000	23,000,000
Other accounts and notes receivable	35,000,000	42,000,000
Affiliated companies	74,000,000	55,000,000
Accumulated provision for uncollectible accounts	(8,000,000)	(8,000,000)
Fossil fuel stock, at average cost	447,000,000	475,000,000
Materials and supplies, at average cost	370,000,000	395,000,000
Vacation pay	61,000,000	61,000,000
Prepaid expenses	121,000,000	81,000,000
Other regulatory assets, current	13,000,000	24,000,000
Other current assets	14,000,000	13,000,000
Total current assets	1,674,000,000	1,757,000,000
Property, Plant, and Equipment:
In service	21,508,000,000	21,407,000,000
Less accumulated provision for depreciation	7,816,000,000	7,761,000,000
Plant in service, net of depreciation	13,692,000,000	13,646,000,000
Nuclear fuel, at amortized cost	356,000,000	354,000,000
Construction work in progress	535,000,000	438,000,000
Total property, plant, and equipment	14,583,000,000	14,438,000,000
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	54,000,000	53,000,000
Nuclear decommissioning trusts, at fair value	642,000,000	605,000,000
Miscellaneous property and investments	78,000,000	78,000,000
Total other property and investments	774,000,000	736,000,000
Deferred Charges and Other Assets:
Deferred charges related to income taxes	524,000,000	525,000,000
Deferred under recovered regulatory clause revenues	15,000,000	11,000,000
Other regulatory assets, deferred	1,071,000,000	1,083,000,000
Other deferred charges and assets	128,000,000	162,000,000
Total deferred charges and other assets	1,738,000,000	1,781,000,000
Total Assets	18,769,000,000	18,712,000,000
Current Liabilities:
Securities due within one year	250,000,000	250,000,000
Notes payable	45,000,000	0
Affiliated	188,000,000	191,000,000
Accounts payable	204,000,000	318,000,000
Customer deposits	86,000,000	85,000,000
Accrued taxes --
Accrued income taxes	73,000,000	5,000,000
Other accrued taxes	56,000,000	33,000,000
Accrued interest	60,000,000	62,000,000
Accrued vacation pay	50,000,000	50,000,000
Accrued compensation	36,000,000	94,000,000
Liabilities from risk management activities	5,000,000	14,000,000
Other regulatory liabilities, current	29,000,000	3,000,000
Other current liabilities	38,000,000	38,000,000
Total current liabilities	1,120,000,000	1,143,000,000
Long-term Debt	5,929,000,000	5,929,000,000
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	3,418,000,000	3,404,000,000
Deferred credits related to income taxes	78,000,000	79,000,000
Accumulated deferred investment tax credits	139,000,000	141,000,000
Employee benefit obligations	319,000,000	321,000,000
Asset retirement obligations	599,000,000	589,000,000
Other cost of removal obligations	773,000,000	759,000,000
Other regulatory liabilities, deferred	203,000,000	183,000,000
Other deferred credits and liabilities	91,000,000	81,000,000
Total deferred credits and other liabilities	5,620,000,000	5,557,000,000
Total Liabilities	12,669,000,000	12,629,000,000
Redeemable Preferred Stock	342,000,000	342,000,000
Preference Stock	343,000,000	343,000,000
Common Stockholders' Equity:
Common stock	1,222,000,000	1,222,000,000
Paid-in capital	2,236,000,000	2,227,000,000
Retained earnings	1,984,000,000	1,976,000,000
Accumulated other comprehensive loss	(27,000,000)	(27,000,000)
Total common stockholders' equity	5,415,000,000	5,398,000,000
Total Liabilities and Stockholders' Equity	18,769,000,000	18,712,000,000
Georgia Power [Member]
Current Assets:
Cash and cash equivalents	79,000,000	45,000,000
Restricted cash and cash equivalents	18,000,000	0
Receivables --
Customer accounts receivable	500,000,000	484,000,000
Unbilled revenues	187,000,000	217,000,000
Joint owner accounts receivable	52,000,000	51,000,000
Other accounts and notes receivable	53,000,000	68,000,000
Affiliated companies	25,000,000	23,000,000
Accumulated provision for uncollectible accounts	(6,000,000)	(6,000,000)
Fossil fuel stock, at average cost	996,000,000	992,000,000
Materials and supplies, at average cost	409,000,000	452,000,000
Vacation pay	86,000,000	85,000,000
Prepaid income taxes	151,000,000	164,000,000
Other regulatory assets, current	48,000,000	72,000,000
Other current assets	48,000,000	104,000,000
Total current assets	2,646,000,000	2,751,000,000
Property, Plant, and Equipment:
In service	29,462,000,000	29,244,000,000
Less accumulated provision for depreciation	10,574,000,000	10,431,000,000
Plant in service, net of depreciation	18,888,000,000	18,813,000,000
Other utility plant, net	266,000,000	263,000,000
Nuclear fuel, at amortized cost	506,000,000	497,000,000
Construction work in progress	3,079,000,000	2,893,000,000
Total property, plant, and equipment	22,739,000,000	22,466,000,000
Other Property and Investments:
Equity investments in unconsolidated subsidiaries	46,000,000	45,000,000
Nuclear decommissioning trusts, at fair value	723,000,000	698,000,000
Miscellaneous property and investments	42,000,000	44,000,000
Total other property and investments	811,000,000	787,000,000
Deferred Charges and Other Assets:
Deferred charges related to income taxes	726,000,000	733,000,000
Other regulatory assets, deferred	1,794,000,000	1,798,000,000
Other deferred charges and assets	279,000,000	268,000,000
Total deferred charges and other assets	2,799,000,000	2,799,000,000
Total Assets	28,995,000,000	28,803,000,000
Current Liabilities:
Securities due within one year	1,047,000,000	1,680,000,000
Notes payable	302,000,000	2,000,000
Affiliated	419,000,000	417,000,000
Accounts payable	503,000,000	436,000,000
Customer deposits	241,000,000	237,000,000
Accrued taxes --
Accrued income taxes	43,000,000	6,000,000
Other accrued taxes	96,000,000	260,000,000
Accrued interest	113,000,000	100,000,000
Accrued vacation pay	60,000,000	61,000,000
Accrued compensation	48,000,000	113,000,000
Liabilities from risk management activities	17,000,000	30,000,000
Other regulatory liabilities, current	56,000,000	73,000,000
Over recovered regulatory clause liabilities	117,000,000	107,000,000
Other current liabilities	119,000,000	146,000,000
Total current liabilities	3,181,000,000	3,668,000,000
Long-term Debt	8,641,000,000	7,994,000,000
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	4,914,000,000	4,861,000,000
Deferred credits related to income taxes	113,000,000	115,000,000
Accumulated deferred investment tax credits	206,000,000	208,000,000
Employee benefit obligations	945,000,000	950,000,000
Asset retirement obligations	1,148,000,000	1,097,000,000
Other cost of removal obligations	63,000,000	63,000,000
Other deferred credits and liabilities	260,000,000	308,000,000
Total deferred credits and other liabilities	7,649,000,000	7,602,000,000
Total Liabilities	19,471,000,000	19,264,000,000
Redeemable Preferred Stock	45,000,000	45,000,000
Preference Stock	221,000,000	221,000,000
Common Stockholders' Equity:
Common stock	398,000,000	398,000,000
Paid-in capital	5,599,000,000	5,585,000,000
Retained earnings	3,267,000,000	3,297,000,000
Accumulated other comprehensive loss	(6,000,000)	(7,000,000)
Total common stockholders' equity	9,258,000,000	9,273,000,000
Total Liabilities and Stockholders' Equity	28,995,000,000	28,803,000,000
Gulf Power [Member]
Current Assets:
Cash and cash equivalents	27,931,000	32,167,000
Receivables --
Customer accounts receivable	61,190,000	58,449,000
Unbilled revenues	47,817,000	53,363,000
Under recovered regulatory clause revenues	15,153,000	6,138,000
Other accounts and notes receivable	13,019,000	11,859,000
Affiliated companies	8,709,000	13,624,000
Accumulated provision for uncollectible accounts	(1,261,000)	(1,490,000)
Fossil fuel stock, at average cost	152,287,000	153,710,000
Materials and supplies, at average cost	53,877,000	53,365,000
Prepaid expenses	63,697,000	62,877,000
Other regulatory assets, current	20,475,000	30,576,000
Other current assets	10,682,000	2,690,000
Total current assets	473,576,000	477,328,000
Property, Plant, and Equipment:
In service	4,261,604,000	4,260,844,000
Less accumulated provision for depreciation	1,170,499,000	1,168,055,000
Plant in service, net of depreciation	3,091,105,000	3,092,789,000
Construction work in progress	178,025,000	136,062,000
Total property, plant, and equipment	3,269,130,000	3,228,851,000
Other Property and Investments:
Total other property and investments	15,494,000	15,737,000
Deferred Charges and Other Assets:
Deferred charges related to income taxes	50,664,000	50,139,000
Other regulatory assets, deferred	373,289,000	372,294,000
Other deferred charges and assets	33,531,000	33,053,000
Total deferred charges and other assets	457,484,000	455,486,000
Total Assets	4,215,684,000	4,177,402,000
Current Liabilities:
Securities due within one year	60,000,000	60,000,000
Notes payable	132,811,000	127,002,000
Affiliated	60,226,000	66,161,000
Accounts payable	44,953,000	54,551,000
Customer deposits	34,950,000	34,749,000
Accrued taxes --
Accrued income taxes	4,094,000	45,000
Other accrued taxes	12,302,000	7,036,000
Accrued interest	18,098,000	12,364,000
Accrued compensation	5,514,000	14,966,000
Liabilities from risk management activities	7,782,000	16,529,000
Other regulatory liabilities, current	18,903,000	25,887,000
Other current liabilities	20,429,000	19,930,000
Total current liabilities	420,062,000	439,220,000
Long-term Debt	1,186,022,000	1,185,870,000
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	660,762,000	648,952,000
Accumulated deferred investment tax credits	5,070,000	5,408,000
Employee benefit obligations	127,254,000	126,871,000
Other cost of removal obligations	218,801,000	213,413,000
Other regulatory liabilities, deferred	50,027,000	47,863,000
Deferred capacity expense	148,213,000	137,568,000
Other deferred credits and liabilities	86,514,000	93,497,000
Total deferred credits and other liabilities	1,296,641,000	1,273,572,000
Total Liabilities	2,902,725,000	2,898,662,000
Preference Stock	97,998,000	97,998,000
Common Stockholders' Equity:
Common stock	433,060,000	393,060,000
Paid-in capital	548,933,000	547,798,000
Retained earnings	234,406,000	241,465,000
Accumulated other comprehensive loss	(1,438,000)	(1,581,000)
Total common stockholders' equity	1,214,961,000	1,180,742,000
Total Liabilities and Stockholders' Equity	4,215,684,000	4,177,402,000
Mississippi Power [Member]
Current Assets:
Cash and cash equivalents	187,759,000	145,008,000
Receivables --
Customer accounts receivable	32,288,000	29,561,000
Unbilled revenues	33,324,000	32,688,000
Other accounts and notes receivable	5,851,000	7,517,000
Affiliated companies	31,475,000	27,160,000
Accumulated provision for uncollectible accounts	(298,000)	(373,000)
Fossil fuel stock, at average cost	167,963,000	176,378,000
Materials and supplies, at average cost	39,004,000	34,260,000
Prepaid income taxes	173,818,000	129,835,000
Other regulatory assets, current	53,058,000	55,302,000
Other current assets	33,268,000	17,170,000
Total current assets	757,510,000	654,506,000
Property, Plant, and Equipment:
In service	3,073,750,000	3,036,159,000
Less accumulated provision for depreciation	1,083,639,000	1,065,474,000
Plant in service, net of depreciation	1,990,111,000	1,970,685,000
Construction work in progress	2,289,256,000	2,393,145,000
Total property, plant, and equipment	4,279,367,000	4,363,830,000
Other Property and Investments:
Total other property and investments	4,836,000	4,887,000
Deferred Charges and Other Assets:
Deferred charges related to income taxes	81,855,000	71,869,000
Other regulatory assets, deferred	244,585,000	236,225,000
Other deferred charges and assets	36,943,000	42,304,000
Total deferred charges and other assets	363,383,000	350,398,000
Total Assets	5,405,096,000	5,373,621,000
Current Liabilities:
Securities due within one year	342,285,000	276,471,000
Interest-bearing refundable deposit related to asset sale	150,000,000	150,000,000
Affiliated	53,795,000	54,769,000
Accounts payable	273,305,000	262,992,000
Customer deposits	14,415,000	14,202,000
Accrued taxes --
Accrued income taxes	4,750,000	2,339,000
Other accrued taxes	21,951,000	69,376,000
Accrued interest	36,946,000	30,376,000
Accrued compensation	5,459,000	15,706,000
Liabilities from risk management activities	6,671,000	13,116,000
Other regulatory liabilities, current	10,863,000	5,376,000
Over recovered regulatory clause liabilities	80,333,000	77,338,000
Other current liabilities	19,200,000	18,766,000
Total current liabilities	1,019,973,000	990,827,000
Long-term Debt	1,869,056,000	1,564,462,000
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	80,676,000	244,958,000
Deferred credits related to income taxes	9,676,000	10,106,000
Accumulated deferred investment tax credits	420,678,000	370,554,000
Employee benefit obligations	157,542,000	157,421,000
Other cost of removal obligations	148,190,000	143,461,000
Other regulatory liabilities, deferred	56,457,000	56,984,000
Other deferred credits and liabilities	49,842,000	52,860,000
Total deferred credits and other liabilities	923,061,000	1,036,344,000
Total Liabilities	3,812,090,000	3,591,633,000
Redeemable Preferred Stock	32,780,000	32,780,000
Common Stockholders' Equity:
Common stock	37,691,000	37,691,000
Paid-in capital	1,502,836,000	1,401,520,000
Retained earnings	28,199,000	318,710,000
Accumulated other comprehensive loss	(8,500,000)	(8,713,000)
Total common stockholders' equity	1,560,226,000	1,749,208,000
Total Liabilities and Stockholders' Equity	5,405,096,000	5,373,621,000
Southern Power [Member]
Current Assets:
Cash and cash equivalents	75,596,000	28,592,000
Receivables --
Customer accounts receivable	64,391,000	62,857,000
Other accounts and notes receivable	2,164,000	3,135,000
Affiliated companies	26,252,000	38,269,000
Fossil fuel stock, at average cost	19,776,000	21,616,000
Materials and supplies, at average cost	49,943,000	46,370,000
Prepaid service agreements - current	104,424,000	80,629,000
Prepaid income taxes	11,696,000	4,498,000
Prepaid expenses	4,318,000	5,637,000
Assets from risk management activities	2,916,000	375,000
Total current assets	361,476,000	291,978,000
Property, Plant, and Equipment:
In service	4,032,559,000	4,059,839,000
Less accumulated provision for depreciation	808,958,000	786,620,000
Plant in service, net of depreciation	3,223,601,000	3,273,219,000
Construction work in progress	80,502,000	24,835,000
Total property, plant, and equipment	3,304,103,000	3,298,054,000
Other Property and Investments:
Goodwill	1,839,000	1,839,000
Other intangible assets, net of amortization of $3,759 and $3,141 at March 31, 2013 and December 31, 2012, respectively	45,360,000	45,979,000
Total other property and investments	47,199,000	47,818,000
Deferred Charges and Other Assets:
Prepaid long-term service agreements	96,121,000	100,921,000
Other deferred charges and assets -- affiliated	6,692,000	3,468,000
Other deferred charges and assets	42,675,000	37,688,000
Total deferred charges and other assets	145,488,000	142,077,000
Total Assets	3,858,266,000	3,779,927,000
Current Liabilities:
Securities due within one year	98,000	259,000
Notes payable	147,953,000	70,968,000
Affiliated	66,864,000	65,832,000
Accounts payable	22,197,000	26,204,000
Accrued taxes --
Accrued income taxes	1,224,000	87,000
Other accrued taxes	6,915,000	3,031,000
Accrued interest	11,433,000	22,259,000
Liabilities from risk management activities	590,000	669,000
Other current liabilities	7,734,000	8,263,000
Total current liabilities	265,008,000	197,572,000
Long-term Debt	1,307,762,000	1,306,099,000
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	564,301,000	550,685,000
Deferred convertible investment tax credits	174,471,000	167,130,000
Deferred capacity revenues -- affiliated	6,835,000	19,514,000
Other deferred credits and liabilities — affiliated	2,384,000	2,638,000
Other deferred credits and liabilities	5,880,000	5,863,000
Total deferred credits and other liabilities	753,871,000	745,830,000
Total Liabilities	2,326,641,000	2,249,501,000
Redeemable Noncontrolling Interest	9,689,000	8,069,000
Common Stockholders' Equity:
Common stock	0	0
Paid-in capital	1,028,581,000	1,027,548,000
Retained earnings	492,497,000	495,585,000
Accumulated other comprehensive loss	858,000	(776,000)
Total common stockholders' equity	1,521,936,000	1,522,357,000
Total Liabilities and Stockholders' Equity	$ 3,858,266,000	$ 3,779,927,000

XML

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net Income	$ 97,000,000	$ 384,000,000
Qualifying hedges:
Changes in fair value, net of tax	0	3,000,000
Reclassification adjustment for amounts included in net income, net of tax	3,000,000	2,000,000
Pension and other post retirement benefit plans:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	1,000,000
Total other comprehensive income (loss)	4,000,000	6,000,000
Dividends on preferred and preference stock of subsidiaries	(16,000,000)	(16,000,000)
Comprehensive Income	85,000,000	374,000,000
Alabama Power [Member]
Net Income	151,000,000	136,000,000
Qualifying hedges:
Changes in fair value, net of tax	0	4,000,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	0	4,000,000
Dividends on preferred and preference stock of subsidiaries	(10,000,000)	(10,000,000)
Comprehensive Income	151,000,000	140,000,000
Georgia Power [Member]
Net Income	201,000,000	171,000,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	1,000,000	1,000,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,000,000	1,000,000
Dividends on preferred and preference stock of subsidiaries	(4,000,000)	(4,000,000)
Comprehensive Income	202,000,000	172,000,000
Gulf Power [Member]
Net Income	23,343,000	22,217,000
Qualifying hedges:
Reclassification adjustment for amounts included in net income, net of tax	143,000	143,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	143,000	143,000
Dividends on preferred and preference stock of subsidiaries	(1,551,000)	(1,551,000)
Comprehensive Income	23,486,000	22,360,000
Mississippi Power [Member]
Net Income	(245,888,000)	25,688,000
Qualifying hedges:
Changes in fair value, net of tax	0	(478,000)
Reclassification adjustment for amounts included in net income, net of tax	212,000	26,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	212,000	(452,000)
Dividends on preferred and preference stock of subsidiaries	(433,000)	(433,000)
Comprehensive Income	(245,676,000)	25,236,000
Southern Power [Member]
Net Income	29,192,000	29,316,000
Qualifying hedges:
Changes in fair value, net of tax	0	(274,000)
Reclassification adjustment for amounts included in net income, net of tax	1,634,000	1,510,000
Pension and other post retirement benefit plans:
Total other comprehensive income (loss)	1,634,000	1,236,000
Comprehensive Income	$ 30,826,000	$ 30,552,000

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Acquisitions

3 Months Ended

Mar. 31, 2013

Business Combinations [Abstract]

ACQUISITIONS

ACQUISITIONS

Campo Verde Solar, LLC Acquisition

On April 23, 2013, Southern Power and Turner Renewable Energy, LLC (TRE), through Southern Turner Renewable Energy, LLC (STR), a jointly-owned subsidiary owned 90% by Southern Power , acquired all of the outstanding membership interests of Campo Verde Solar, LLC (Campo Verde) from First Solar, Inc., the developer of the project. Campo Verde is constructing a 139-MW solar photovoltaic facility in Southern California. The solar facility is expected to begin commercial operation in the fourth quarter 2013. The output of the plant is contracted under a 20-year PPA with San Diego Gas & Electric Company, a subsidiary of Sempra Energy, that is expected to begin in the fourth quarter 2013. This PPA will be accounted for as an operating lease. The acquisition is in accordance with Southern Power's overall growth strategy.

Southern Power's acquisition of Campo Verde included cash consideration of $136.6 million. The allocation of the purchase price to individual assets has not been finalized. Under an engineering, procurement, and construction agreement (Construction Agreement), an additional $357.3 million will be paid to a subsidiary of First Solar, Inc. (Construction Contractor) to complete construction of the solar facility.

In the event certain unforeseeable conditions occur at the project site, the Construction Contractor may terminate the Construction Agreement, and in the event the Construction Contractor does not achieve certain construction or project development milestones by certain dates, STR may terminate the Construction Agreement. In each case, a subsidiary of First Solar will be required to make a termination payment to STR equal to STR's investment in Campo Verde (net of any tax or other benefits received by STR) and STR will be required to transfer its ownership in Campo Verde to the subsidiary of First Solar (the Termination Payment and Transfer). In addition, under the acquisition agreement, a subsidiary of First Solar may require the Termination Payment and Transfer to occur in the event costs relating to certain contingencies exceed a certain threshold until such time that the contingencies are satisfactorily resolved under the terms of the acquisition agreement, and STR may require the Termination Payment and Transfer to occur in the event certain contingencies are not satisfactorily resolved. The ultimate outcome of this matter cannot be determined at this time; however, STR believes the likelihood of a Termination Payment and Transfer to be remote at the acquisition date.

XML

Document and Entity Information	3 Months Ended
	Mar. 31, 2013
Entity Information [Line Items]
Entity Registrant Name	SOUTHERN CO
Entity Central Index Key	0000092122
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	870,390,537
Alabama Power [Member]
Entity Information [Line Items]
Entity Registrant Name	ALABAMA POWER CO
Entity Central Index Key	0000003153
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	30,537,500
Georgia Power [Member]
Entity Information [Line Items]
Entity Registrant Name	GEORGIA POWER CO
Entity Central Index Key	0000041091
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	9,261,500
Gulf Power [Member]
Entity Information [Line Items]
Entity Registrant Name	GULF POWER CO
Entity Central Index Key	0000044545
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	4,942,717
Mississippi Power [Member]
Entity Information [Line Items]
Entity Registrant Name	MISSISSIPPI POWER CO
Entity Central Index Key	0000066904
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	1,121,000
Southern Power [Member]
Entity Information [Line Items]
Entity Registrant Name	SOUTHERN POWER CO
Entity Central Index Key	0001160661
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	1,000

XML

Investment In Leveraged Leases

3 Months Ended

Mar. 31, 2013

Leases [Abstract]

INVESTMENTS IN LEVERAGED LEASES

INVESTMENTS IN LEVERAGED LEASES

See Note 1 to the financial statements of Southern Company under "Leveraged Leases" in Item 8 of the Form 10-K for additional information.

On March 1, 2013, Southern Company completed the restructuring of the nonrecourse debt and the related rental payments associated with its leveraged lease investment in a 440-MW generation facility located in Choctaw County, Mississippi. In connection with the restructuring, Southern Company has committed, as owner/lessor, to invest approximately $60 million in capital over the next three years to improve the operational performance of the facility and upgrade environmental controls. As part of the restructuring, the interest rate on the nonrecourse debt was significantly reduced, resulting in lower debt payments for Southern Company and lower rental payments for the lessee over the remaining 19-year term of the nonrecourse debt and the lease. As a consequence of the restructuring, Southern Company recalculated its net investment in the lease to reflect changes in the future cash flows to Southern Company as owner/lessor. As a result of the recalculation, Southern Company recorded an after-tax charge to income during the first quarter 2013 of approximately $16 million. This noncash charge reflects a reallocation of previously recognized lease income that will be reflected in income over the remaining term of the lease.

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Changes in fair value of qualifying hedges, tax	$ 0	$ 2,000,000
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	2,000,000	1,000,000
Reclassification adjustment for amounts of pension and other post retirement benefit plans included in net income, tax	1,000,000	1,000,000
Alabama Power [Member]
Changes in fair value of qualifying hedges, tax	0	3,000,000
Georgia Power [Member]
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	0	0
Gulf Power [Member]
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	90,000	90,000
Mississippi Power [Member]
Changes in fair value of qualifying hedges, tax	0	(296,000)
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	131,000	16,000
Southern Power [Member]
Changes in fair value of qualifying hedges, tax	0	(173,000)
Reclassification adjustment for amounts of qualifying hedges included in net income, tax	$ 1,045,000	$ 956,000

XML

Stockholders' Equity

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY

Earnings per Share

For Southern Company, the only difference in computing basic and diluted earnings per share is attributable to awards outstanding under the stock option and performance share plans. See Note 8 to the financial statements of Southern Company in Item 8 of the Form 10-K for information on the stock option and performance share plans. The effects of both stock options and performance share award units were determined using the treasury stock method. Shares used to compute diluted earnings per share were as follows:

	Three Months Ended March 31, 2013	Three Months Ended March 31, 2012
	(in millions)
As reported shares	870	868
Effect of options and performance share award units	5	9
Diluted shares	875	877

Stock options and performance share award units that were not included in the diluted earnings per share calculation because they were anti-dilutive were immaterial for the three months ended March 31, 2013 and 2012.

Changes in Stockholders' Equity

The following table presents year-to-date changes in stockholders' equity of Southern Company:

	Number of Common Shares			Common Stockholders' Equity			Preferred and Preference Stock of Subsidiaries		Total Stockholders' Equity
	Issued	Treasury
	(in thousands)						(in millions)
Balance at December 31, 2012	877,803	(10,035	)	$	18,297		$	707	$	19,004
Net income after dividends on preferred and preference stock	—	—		81			—		81
Other comprehensive income (loss)	—	—		4			—		4
Stock issued	2,638	—		99			—		99
Stock repurchased, at cost	—	—		(18		)	—		(18		)
Cash dividends on common stock	—	—		(426		)	—		(426		)
Other	—	(15	)	—			—		—
Balance at March 31, 2013	880,441	(10,050	)	$	18,037		$	707	$	18,744
Balance at December 31, 2011	865,664	(539	)	$	17,578		$	707	$	18,285
Net income after dividends on preferred and preference stock	—	—		368			—		368
Other comprehensive income (loss)	—	—		6			—		6
Stock issued	3,571	—		157			—		157
Cash dividends on common stock	—	—		(410		)	—		(410		)
Other	—	(6	)	—			—		—
Balance at March 31, 2012	869,235	(545	)	$	17,699		$	707	$	18,406

In July 2012, Southern Company announced a program to repurchase shares to partially offset the incremental shares issued under its employee and director stock plans. As of December 31, 2012, Southern Company had repurchased a total of approximately 9 million shares at a total cost of $430 million. There were no repurchases under this program in the first quarter 2013. Pursuant to approval by the Southern Company Board of Directors, Southern Company may repurchase shares through open market purchases or privately negotiated transactions, in accordance with applicable securities laws.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

As of March 31, 2013, assets and liabilities measured at fair value on a recurring basis during the period, together with the level of the fair value hierarchy in which they fall, were as follows:

	Fair Value Measurements Using
As of March 31, 2013:	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in millions)
Southern Company
Assets:
Energy-related derivatives	$	—	$	50	$	—	$	50
Interest rate derivatives	—		10		—		10
Nuclear decommissioning trusts(a)	526		838		—		1,364
Cash equivalents	223		—		—		223
Other investments	9		—		15		24
Total	$	758	$	898	$	15	$	1,671
Liabilities:
Energy-related derivatives	$	—	$	63	$	—	$	63
Alabama Power
Assets:
Energy-related derivatives	$	—	$	12	$	—	$	12
Nuclear decommissioning trusts:(b)
Domestic equity	320		69		—		389
Foreign equity	30		56		—		86
U.S. Treasury and government agency securities	—		29		—		29
Corporate bonds	—		101		—		101
Mortgage and asset backed securities	—		25		—		25
Other	—		10		—		10
Total	$	350	$	302	$	—	$	652
Liabilities:
Energy-related derivatives	$	—	$	7	$	—	$	7

	Fair Value Measurements Using
As of March 31, 2013:	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in millions)
Georgia Power
Assets:
Energy-related derivatives	$	—	$	13	$	—	$	13
Nuclear decommissioning trusts:(b) (c)
Domestic equity	176		1		—		177
Foreign equity	—		120		—		120
U.S. Treasury and government agency securities	—		130		—		130
Municipal bonds	—		28		—		28
Corporate bonds	—		130		—		130
Mortgage and asset backed securities	—		121		—		121
Other	—		18		—		18
Cash equivalents	27		—		—		27
Total	$	203	$	561	$	—	$	764
Liabilities:
Energy-related derivatives	$	—	$	28	$	—	$	28
Gulf Power
Assets:
Energy-related derivatives	$	—	$	14	$	—	$	14
Cash equivalents	16		—		—		16
Total	$	16	$	14	$	—	$	30
Liabilities:
Energy-related derivatives	$	—	$	16	$	—	$	16
Mississippi Power
Assets:
Energy-related derivatives	$	—	$	6	$	—	$	6
Cash equivalents	122		—		—		122
Total	$	122	$	6	$	—	$	128
Liabilities:
Energy-related derivatives	$	—	$	11	$	—	$	11
Southern Power
Assets:
Energy-related derivatives	$	—	$	5	$	—	$	5
Cash equivalents	27		—		—		27
Total	$	27	$	5	$	—	$	32
Liabilities:
Energy-related derivatives	$	—	$	1	$	—	$	1

(a) For additional detail, see the nuclear decommissioning trusts sections for Alabama Power and Georgia Power in this table.

(b) Excludes receivables related to investment income, pending investment sales, and payables related to pending investment purchases.

(c) Includes the investment securities pledged to creditors and cash collateral received and excludes payables related to the securities lending program. As of March 31, 2013, approximately $68 million of the fair market value of Georgia Power's nuclear decommissioning trust funds' securities were on loan and pledged to creditors under the funds' managers' securities lending program.

Valuation Methodologies

The energy-related derivatives primarily consist of over-the-counter financial products for natural gas and physical power products including, from time to time, basis swaps. These are standard products used within the energy industry and are valued using the market approach. The inputs used are mainly from observable market sources, such as forward natural gas prices, power prices, implied volatility, and LIBOR interest rates. Interest rate and foreign currency derivatives are also standard over-the-counter financial products valued using the market approach. Inputs for interest rate derivatives include LIBOR interest rates, interest rate futures contracts, and occasionally implied volatility of interest rate options. Inputs for foreign currency derivatives are from observable market sources. See Note (H) herein for additional information on how these derivatives are used.

"Other investments" include investments in funds that are valued using the market approach and income approach. Securities that are traded in the open market are valued at the closing price on their principal exchange as of the measurement date. Discounts are applied in accordance with GAAP when certain trading restrictions exist. For investments that are not traded in the open market, the price paid will have been determined based on market factors including comparable multiples and the expectations regarding cash flows and business plan execution. As the investments mature or if market conditions change materially, further analysis of the fair market value of the investment is performed. This analysis is typically based on a metric, such as multiple of earnings, revenues, earnings before interest and income taxes, or earnings adjusted for certain cash changes. These multiples are based on comparable multiples for publicly traded companies or other relevant prior transactions.

For fair value measurements of investments within the nuclear decommissioning trusts and rabbi trust funds, specifically the fixed income assets using significant other observable inputs and unobservable inputs, the primary valuation technique used is the market approach. External pricing vendors are designated for each of the asset classes in the nuclear decommissioning trusts and rabbi trust funds with each security discriminately assigned a primary pricing source, based on similar characteristics.

A market price secured from the primary source vendor is then evaluated by management in its valuation of the assets within the trusts. As a general approach, market pricing vendors gather market data (including indices and market research reports) and integrate relative credit information, observed market movements, and sector news into proprietary pricing models, pricing systems, and mathematical tools. Dealer quotes and other market information including live trading levels and pricing analysts' judgment are also obtained when available.

As of March 31, 2013, the fair value measurements of investments calculated at net asset value per share (or its equivalent), as well as the nature and risks of those investments, were as follows:

As of March 31, 2013:	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
	(in millions)
Southern Company
Nuclear decommissioning trusts:
Foreign equity funds	$	120	None	Monthly	5 days
Corporate bonds - commingled funds	7		None	Daily	1 to 3 days
Other - commingled funds	74		None	Daily/Monthly	Daily/7 days
Trust-owned life insurance	100		None	Daily	15 days
Cash equivalents:
Money market funds	223		None	Daily	Not applicable
Alabama Power
Nuclear decommissioning trusts:
Other - commingled funds	56		None	Daily/Monthly	Daily/7 days
Trust-owned life insurance	100		None	Daily	15 days
Georgia Power
Nuclear decommissioning trusts:
Foreign equity funds	120		None	Monthly	5 days
Corporate bonds - commingled funds	7		None	Daily	Not applicable
Other - commingled funds	18		None	Daily	Not applicable
Cash equivalents:
Money market funds	27		None	Daily	Not applicable
Gulf Power
Cash equivalents:
Money market funds	16		None	Daily	Not applicable
Mississippi Power
Cash equivalents:
Money market funds	122		None	Daily	Not applicable
Southern Power
Cash equivalents:
Money market funds	27		None	Daily	Not applicable

The NRC requires licensees of commissioned nuclear power reactors to establish a plan for providing reasonable assurance of funds for future decommissioning. Alabama Power and Georgia Power have external trust funds (the Funds) to comply with the NRC's regulations. The foreign equity fund in Georgia Power's nuclear decommissioning trusts seeks to provide long-term capital appreciation. In pursuing this investment objective, the foreign equity fund primarily invests in a diversified portfolio of equity securities of foreign companies, including those in emerging markets. These equity securities may include, but are not limited to, common stocks, preferred stocks, real estate investment trusts, convertible securities and depository receipts, including American depositary receipts, European depositary receipts and global depository receipts, and rights and warrants to buy common stocks. Georgia Power may withdraw all or a portion of its investment on the last business day of each month subject to a minimum withdrawal of $1 million, provided that a minimum investment of $10 million remains. If notices of withdrawal exceed 20% of the aggregate value of the foreign equity fund, then the foreign equity fund's board may refuse to permit the withdrawal of all such investments and may scale down the amounts to be withdrawn pro rata and may further determine that any withdrawal that has been postponed will have priority on the subsequent withdrawal date.

The commingled funds in Georgia Power's nuclear decommissioning trusts are invested primarily in a diversified portfolio, including, but not limited to, commercial paper, notes, repurchase agreements, and other evidences of indebtedness with a maturity not exceeding 13 months from the date of purchase. The commingled funds will, however, generally maintain a dollar-weighted average portfolio maturity of 90 days or less. The assets may be longer term investment grade fixed income obligations with maturity shortening provisions. The primary objective for the commingled funds is a high level of current income consistent with stability of principal and liquidity. The commingled funds included with corporate bonds represent the investment of cash collateral received under the Funds' managers' securities lending program that can only be sold upon the return of the loaned securities. See Note 1 to the financial statements of Southern Company and Georgia Power under "Nuclear Decommissioning" in Item 8 of the Form 10-K for additional information.

Alabama Power's nuclear decommissioning trust includes investments in Trust-Owned Life Insurance (TOLI). The taxable nuclear decommissioning trust invests in the TOLI in order to minimize the impact of taxes on the portfolio and can draw on the value of the TOLI through death proceeds, loans against the cash surrender value, and/or the cash surrender value, subject to legal restrictions. The amounts reported in the table above reflect the fair value of investments the insurer has made in relation to the TOLI agreements. The nuclear decommissioning trust does not own the underlying investments, but the fair value of the investments approximates the cash surrender value of the TOLI policies. The investments made by the insurer are in commingled funds. The commingled funds primarily include investments in domestic and international equity securities and predominantly high-quality fixed income securities. These fixed income securities may include U.S. Treasury and government agency fixed income securities, non-U.S. government and agency fixed income securities, domestic and foreign corporate fixed income securities, and, to some degree, mortgage and asset backed securities. The passively managed funds seek to replicate the performance of a related index. The actively managed funds seek to exceed the performance of a related index through security analysis and selection.

Southern Company, Alabama Power, and Georgia Power continue to elect the option to fair value investment securities held in the nuclear decommissioning trust funds. For the three months ended March 31, 2013, the fair value of the funds, including reinvested interest and dividends reduced by the funds' expenses, increased by $59 million at Southern Company. Alabama Power recorded an increase in fair value of $38 million as an increase in regulatory liabilities. Georgia Power recorded an increase in fair value of $21 million as a reduction of its regulatory asset related to its asset retirement obligations.

The money market funds are short-term investments of excess funds in various money market mutual funds, which are portfolios of short-term debt securities. The money market funds are regulated by the SEC and typically receive the highest rating from credit rating agencies. Regulatory and rating agency requirements for money market funds include minimum credit ratings and maximum maturities for individual securities and a maximum weighted average portfolio maturity. Redemptions are available on a same day basis up to the full amount of the investment in the money market funds.

As of March 31, 2013, other financial instruments for which the carrying amount did not equal fair value were as follows: 

	Carrying Amount		Fair Value
	(in millions)
Long-term debt:
Southern Company	$	21,915	$	23,644
Alabama Power	$	6,179	$	6,853
Georgia Power	$	9,639	$	10,316
Gulf Power	$	1,246	$	1,353
Mississippi Power	$	2,211	$	2,294
Southern Power	$	1,308	$	1,448

The fair values are determined using Level 2 measurements and are based on quoted market prices for the same or similar issues or on the current rates offered to Southern Company, Alabama Power, Georgia Power, Gulf Power, Mississippi Power, and Southern Power.

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on a recurring basis

As of March 31, 2013, assets and liabilities measured at fair value on a recurring basis during the period, together with the level of the fair value hierarchy in which they fall, were as follows:

	Fair Value Measurements Using
As of March 31, 2013:	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in millions)
Southern Company
Assets:
Energy-related derivatives	$	—	$	50	$	—	$	50
Interest rate derivatives	—		10		—		10
Nuclear decommissioning trusts(a)	526		838		—		1,364
Cash equivalents	223		—		—		223
Other investments	9		—		15		24
Total	$	758	$	898	$	15	$	1,671
Liabilities:
Energy-related derivatives	$	—	$	63	$	—	$	63
Alabama Power
Assets:
Energy-related derivatives	$	—	$	12	$	—	$	12
Nuclear decommissioning trusts:(b)
Domestic equity	320		69		—		389
Foreign equity	30		56		—		86
U.S. Treasury and government agency securities	—		29		—		29
Corporate bonds	—		101		—		101
Mortgage and asset backed securities	—		25		—		25
Other	—		10		—		10
Total	$	350	$	302	$	—	$	652
Liabilities:
Energy-related derivatives	$	—	$	7	$	—	$	7

	Fair Value Measurements Using
As of March 31, 2013:	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in millions)
Georgia Power
Assets:
Energy-related derivatives	$	—	$	13	$	—	$	13
Nuclear decommissioning trusts:(b) (c)
Domestic equity	176		1		—		177
Foreign equity	—		120		—		120
U.S. Treasury and government agency securities	—		130		—		130
Municipal bonds	—		28		—		28
Corporate bonds	—		130		—		130
Mortgage and asset backed securities	—		121		—		121
Other	—		18		—		18
Cash equivalents	27		—		—		27
Total	$	203	$	561	$	—	$	764
Liabilities:
Energy-related derivatives	$	—	$	28	$	—	$	28
Gulf Power
Assets:
Energy-related derivatives	$	—	$	14	$	—	$	14
Cash equivalents	16		—		—		16
Total	$	16	$	14	$	—	$	30
Liabilities:
Energy-related derivatives	$	—	$	16	$	—	$	16
Mississippi Power
Assets:
Energy-related derivatives	$	—	$	6	$	—	$	6
Cash equivalents	122		—		—		122
Total	$	122	$	6	$	—	$	128
Liabilities:
Energy-related derivatives	$	—	$	11	$	—	$	11
Southern Power
Assets:
Energy-related derivatives	$	—	$	5	$	—	$	5
Cash equivalents	27		—		—		27
Total	$	27	$	5	$	—	$	32
Liabilities:
Energy-related derivatives	$	—	$	1	$	—	$	1

(a) For additional detail, see the nuclear decommissioning trusts sections for Alabama Power and Georgia Power in this table.

(b) Excludes receivables related to investment income, pending investment sales, and payables related to pending investment purchases.

(c) Includes the investment securities pledged to creditors and cash collateral received and excludes payables related to the securities lending program. As of March 31, 2013, approximately $68 million of the fair market value of Georgia Power's nuclear decommissioning trust funds' securities were on loan and pledged to creditors under the funds' managers' securities lending program.

Fair value measurements of investments calculated at net asset value per share as well as the nature and risk of those investments

As of March 31, 2013, the fair value measurements of investments calculated at net asset value per share (or its equivalent), as well as the nature and risks of those investments, were as follows:

As of March 31, 2013:	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
	(in millions)
Southern Company
Nuclear decommissioning trusts:
Foreign equity funds	$	120	None	Monthly	5 days
Corporate bonds - commingled funds	7		None	Daily	1 to 3 days
Other - commingled funds	74		None	Daily/Monthly	Daily/7 days
Trust-owned life insurance	100		None	Daily	15 days
Cash equivalents:
Money market funds	223		None	Daily	Not applicable
Alabama Power
Nuclear decommissioning trusts:
Other - commingled funds	56		None	Daily/Monthly	Daily/7 days
Trust-owned life insurance	100		None	Daily	15 days
Georgia Power
Nuclear decommissioning trusts:
Foreign equity funds	120		None	Monthly	5 days
Corporate bonds - commingled funds	7		None	Daily	Not applicable
Other - commingled funds	18		None	Daily	Not applicable
Cash equivalents:
Money market funds	27		None	Daily	Not applicable
Gulf Power
Cash equivalents:
Money market funds	16		None	Daily	Not applicable
Mississippi Power
Cash equivalents:
Money market funds	122		None	Daily	Not applicable
Southern Power
Cash equivalents:
Money market funds	27		None	Daily	Not applicable

Financial instruments for which carrying amount did not equal fair value

As of March 31, 2013, other financial instruments for which the carrying amount did not equal fair value were as follows: 

	Carrying Amount		Fair Value
	(in millions)
Long-term debt:
Southern Company	$	21,915	$	23,644
Alabama Power	$	6,179	$	6,853
Georgia Power	$	9,639	$	10,316
Gulf Power	$	1,246	$	1,353
Mississippi Power	$	2,211	$	2,294
Southern Power	$	1,308	$	1,448

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Segment and Related Information

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

SEGMENT AND RELATED INFORMATION

SEGMENT AND RELATED INFORMATION

Southern Company's reportable business segments are the sale of electricity in the Southeast by the four traditional operating companies and Southern Power. Revenues from sales by Southern Power to the traditional operating companies were $78 million and $112 million for the three months ended March 31, 2013 and March 31, 2012, respectively. The "All Other" column includes parent Southern Company, which does not allocate operating expenses to business segments. Also, this category includes segments below the quantitative threshold for separate disclosure. These segments include investments in telecommunications and leveraged lease projects. All other intersegment revenues are not material. Financial data for business segments and products and services was as follows:

	Electric Utilities
	Traditional Operating Companies		Southern Power		Eliminations			Total		All Other			Eliminations			Consolidated
	(in millions)
Three Months Ended March 31, 2013:
Operating revenues	$	3,668	$	303	$	(86	)	$	3,885	$	35		$	(23	)	$	3,897
Segment net income (loss)(a)(b)	66		29		—			95		(16		)	2			81
Total assets at March 31, 2013	$	58,752	$	3,858	$	(109	)	$	62,501	$	1,075		$	(302	)	$	63,274
Three Months Ended March 31, 2012:
Operating revenues	$	3,449	$	254	$	(114	)	$	3,589	$	38		$	(23	)	$	3,604
Segment net income (loss)(a)	339		29		1			369		2			(3		)	368
Total assets at December 31, 2012	$	58,600	$	3,780	$	(129	)	$	62,251	$	1,116		$	(218	)	$	63,149

(a) After dividends on preferred and preference stock of subsidiaries.

(b) Segment net income (loss) for the three months ended March 31, 2013 includes a $540.0 million pre-tax charge ($333.5 million after tax) for an estimated probable loss on the Kemper IGCC. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for additional information.

Products and Services

	Electric Utilities' Revenues
	Retail		Wholesale		Other		Total
	(in millions)
Three Months Ended March 31, 2013	$	3,298	$	432	$	155	$	3,885
Three Months Ended March 31, 2012	3,092		349		148		3,589

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Effective Tax Rate and Unrecognized Tax Benefits

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

EFFECTIVE TAX RATE AND UNRECOGNIZED TAX BENEFITS

EFFECTIVE TAX RATE AND UNRECOGNIZED TAX BENEFITS

Effective Tax Rate

See Note 5 to the financial statements of each registrant (other than Mississippi Power) in Item 8 of the Form 10-K and Note 5 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A for information on the effective income tax rate.

Southern Company

Southern Company's effective tax rate is typically lower than the statutory rate due to its employee stock plans' dividend deduction and non-taxable AFUDC equity.

Southern Company's effective tax rate was 24.5% for the three months ended March 31, 2013 compared to 34.2% for the corresponding period in 2012. The American Jobs Creation Act of 2004 created a tax deduction for a portion of income attributable to U.S. production activities as defined in Section 199 of the Internal Revenue Code (production activities deduction). The decrease was primarily due to an increase in non-taxable AFUDC equity primarily related to Mississippi Power's construction of the Kemper IGCC combined with lower net income. The decrease was partially offset by the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the methodology used to calculate the production activities deduction.

Alabama Power

Alabama Power's effective tax rate was 39.2% for the three months ended March 31, 2013 compared to 38.3% for the corresponding period in 2012. The increase was primarily due to the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction.

Georgia Power

Georgia Power's effective tax rate was 38.1% for the three months ended March 31, 2013 compared to 34.9% for the corresponding period in 2012. The increase was primarily due to an increase in non-deductible book depreciation, the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction, and a decrease in non-taxable AFUDC equity.

Gulf Power

Gulf Power's effective tax rate was 37.6% for the three months ended March 31, 2013 compared to 34.6% for the corresponding period in 2012. The increase was primarily due to the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction.

Mississippi Power

Mississippi Power's effective tax rate was (40.8)% for the three months ended March 31, 2013 compared to 24.7% for the corresponding period in 2012. The decrease was primarily due to a net loss for the current period and an increase in non-taxable AFUDC equity related to construction of the Kemper IGCC.

Southern Power

Southern Power's effective tax rate was 33.5% for the three months ended March 31, 2013 compared to 31.3% for the corresponding period in 2012. The increase was primarily due to the recognition in 2012 of previously unrecognized tax benefits as a result of a settlement with the IRS related to the production activities deduction.

Unrecognized Tax Benefits

Changes during 2013 for unrecognized tax benefits were as follows:

	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern Power
	(in millions)
Unrecognized tax benefits as of December 31, 2012	$	70	$	31	$	23	$	5	$	6	$	3
Tax positions from current periods	3		1		1		—		—		—
Balance as of March 31, 2013	$	73	$	32	$	24	$	5	$	6	$	3

The tax positions from current periods relate primarily to the tax accounting method change for repairs-generation assets. See "Tax Method of Accounting for Property Related Expenditures" herein for additional information.

The impact on the effective tax rate, if recognized, was as follows:

	As of March 31, 2013			As of December 31, 2012
		Southern Company
	(in millions)
Tax positions impacting the effective tax rate		$	5	$	5
Tax positions not impacting the effective tax rate		68		65
Balance of unrecognized tax benefits		$	73	$	70

The tax positions impacting the effective tax rate primarily relate to state income tax credits. The tax positions not impacting the effective tax rate relate to the timing difference associated with the tax accounting method change for repairs-generation assets. See "Tax Method of Accounting for Property Related Expenditures" herein for additional information. These amounts are presented on a gross basis without considering the related federal or state income tax impact.

All of the registrants classify interest on tax uncertainties as interest expense. Accrued interest for unrecognized tax benefits at March 31, 2013 and December 31, 2012 was not material.

None of the registrants accrued any penalties on uncertain tax positions.

It is reasonably possible that the amount of the unrecognized tax benefits associated with a majority of the registrants' unrecognized tax positions will significantly increase or decrease within 12 months. The resolution of the tax accounting method change for repairs-generation assets, as well as the conclusion or settlement of state audits, could impact the balances significantly. At this time, an estimate of the range of reasonably possible outcomes cannot be determined.

Tax Method of Accounting for Property Related Expenditures

Southern Company submitted a tax accounting method change related to the deductibility of repair costs associated with its subsidiaries' generation, transmission, and distribution systems effective for the 2009 consolidated federal income tax return in 2010. In August 2011, the IRS issued a revenue procedure, which provides a safe harbor method of accounting that taxpayers may use to determine repair costs for transmission and distribution property. Consequently, Southern Company incorporated into its federal income tax returns changes that conform to the new regulations and reversed all unrecognized tax positions related to transmission and distribution property.

In December 2011, the IRS published regulations on the deduction and capitalization of expenditures related to tangible property that generally apply for tax years beginning on or after January 1, 2014. The utility industry anticipates more detailed guidance concerning these regulations. Additionally, on April 30, 2013, the IRS issued Revenue Procedure 2013-24, which provides guidance for taxpayers related to the deductibility of repair costs associated with generation assets. Southern Company is currently reviewing this new guidance. Due to uncertainty regarding the ultimate resolution of the repair costs for generation assets, an unrecognized tax position was recorded for the tax accounting method change for repairs-generation assets. The ultimate outcome of these matters cannot be determined at this time; however, implementing these regulations is not expected to have a material impact on net income.

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Financing

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

FINANCING

FINANCING

Bank Credit Arrangements

Bank credit arrangements provide liquidity support to the registrants' commercial paper borrowings and the traditional operating companies' variable rate pollution control revenue bonds. See Note 6 to the financial statements of each registrant (other than Mississippi Power) under "Bank Credit Arrangements" in Item 8 of the Form 10-K and Note 6 to the financial statements of Mississippi Power under "Bank Credit Arrangements" in Item 8 of the Form 10-K/A for additional information.

The following table outlines the committed credit arrangements by company as of March 31, 2013: 

	Expires(a)												Executable Term Loans				Due Within  One Year
Company	2013		2014		2016		2018		Total		Unused		One Year		Two Years		Term Out		No Term Out
	(in millions)								(in millions)				(in millions)				(in millions)
Southern Company	$	—	$	—	$	—	$	1,000	$	1,000	$	1,000	$	—	$	—	$	—	$	—
Alabama Power	156		151		—		1,000		1,307		1,307		56		—		56		102
Georgia Power	—		—		150		1,600		1,750		1,740		—		—		—		—
Gulf Power	45		60		165		—		270		270		45		—		45		30
Mississippi Power	110		25		165		—		300		300		25		40		65		70
Southern Power	—		—		—		500		500		500		—		—		—		—
Other	50		—		—		—		50		50		25		—		25		25
Total	$	361	$	236	$	480	$	4,100	$	5,177	$	5,167	$	151	$	40	$	191	$	227

(a) No credit arrangements expire in 2015 or 2017.

In February 2013, Southern Company, Alabama Power, Georgia Power, and Southern Power each amended their multi-year credit arrangements, which extended the maturity dates from 2016 to 2018.

In March 2013, Alabama Power amended a $200 million credit arrangement, which extended the maturity date from 2014 to 2018. In March 2013, Gulf Power also amended a $35 million credit arrangement, which reduced the amount to $30 million and extended the maturity date from 2013 to 2014. In addition, in March 2013, Georgia Power, Gulf Power, and Mississippi Power each amended certain of their credit arrangements, which extended the maturity dates from 2014 to 2016 and, in the case of Mississippi Power, also revised the definition of debt to exclude securitized debt relating to the Kemper IGCC for purposes of calculating the debt covenant under these credit arrangements. See Note (B) under "Integrated Coal Gasification Combined Cycle" herein for information regarding legislation related to the securitization of certain costs of the Kemper IGCC.

Subsequent to March 31, 2013, Gulf Power entered into a new credit arrangement for $5 million with a maturity date of 2014.

Also subsequent to March 31, 2013, SEGCO entered into two new $25 million credit arrangements with maturity dates of 2014.

Most of these arrangements contain covenants that limit debt levels and typically contain cross default provisions that are restricted only to the indebtedness of the individual company. Southern Company and its subsidiaries are currently in compliance with all such covenants.

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Retirement Benefits

3 Months Ended

Mar. 31, 2013

Compensation and Retirement Disclosure [Abstract]

RETIREMENT BENEFITS

RETIREMENT BENEFITS

Southern Company has a defined benefit, trusteed, pension plan covering substantially all employees. The qualified pension plan is funded in accordance with requirements of the Employee Retirement Income Security Act of 1974, as amended. No mandatory contributions to the qualified pension plan are anticipated for the year ending December 31, 2013. Southern Company also provides certain defined benefit pension plans for a selected group of management and highly compensated employees. Benefits under these non-qualified pension plans are funded on a cash basis. In addition, Southern Company provides certain medical care and life insurance benefits for retired employees through other postretirement benefit plans. The traditional operating companies fund related other postretirement trusts to the extent required by their respective regulatory commissions.

See Note 2 to the financial statements of Southern Company, Alabama Power, Georgia Power, and Gulf Power in Item 8 of the Form 10-K and Note 2 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A for additional information.

Components of the net periodic benefit costs for the three months ended March 31, 2013 and 2012 were as follows:

Pension Plans	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi   Power
	(in millions)
Three Months Ended March 31, 2013
Service cost	$	58		$	13		$	17		$	3		$	3
Interest cost	97			23			34			4			5
Expected return on plan assets	(151		)	(39		)	(53		)	(6		)	(7		)
Amortization:
Prior service costs	7			2			3			—			—
Net (gain)/loss	50			13			19			2			2
Net cost	$	61		$	12		$	20		$	3		$	3
Three Months Ended March 31, 2012
Service cost	$	50		$	11		$	15		$	2		$	2
Interest cost	98			23			35			4			5
Expected return on plan assets	(145		)	(40		)	(55		)	(6		)	(6		)
Amortization:
Prior service costs	7			2			3			—			—
Net (gain)/loss	24			6			8			1			1
Net cost	$	34		$	2		$	6		$	1		$	2

Postretirement Benefits	Southern Company			Alabama Power			Georgia Power			Gulf Power		Mississippi Power
	(in millions)
Three Months Ended March 31, 2013
Service cost	$	6		$	2		$	2		$	—	$	—
Interest cost	19			5			8			1		1
Expected return on plan assets	(14		)	(6		)	(6		)	—		—
Amortization:
Transition obligation	1			—			1			—		—
Prior service costs	1			1			—			—		—
Net (gain)/loss	3			—			2			—		—
Net cost	$	16		$	2		$	7		$	1	$	1
Three Months Ended March 31, 2012
Service cost	$	5		$	1		$	1		$	—	$	—
Interest cost	21			5			9			1		1
Expected return on plan assets	(15		)	(6		)	(7		)	—		—
Amortization:
Transition obligation	2			1			2			—		—
Prior service costs	1			1			—			—		—
Net (gain)/loss	2			—			1			—		—
Net cost	$	16		$	2		$	6		$	1	$	1

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Derivatives

3 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVES

DERIVATIVES

Southern Company, the traditional operating companies, and Southern Power are exposed to market risks, primarily commodity price risk, interest rate risk, and occasionally foreign currency risk. To manage the volatility attributable to these exposures, each company nets its exposures, where possible, to take advantage of natural offsets and enters into various derivative transactions for the remaining exposures pursuant to each company's policies in areas such as counterparty exposure and risk management practices. Each company's policy is that derivatives are to be used primarily for hedging purposes and mandates strict adherence to all applicable risk management policies. Derivative positions are monitored using techniques including, but not limited to, market valuation, value at risk, stress testing, and sensitivity analysis. Derivative instruments are recognized at fair value in the balance sheets as either assets or liabilities and are presented on a gross basis. In the statements of cash flows, the cash impacts of settled energy-related and interest rate derivatives are recorded as operating activities and the cash impacts of settled foreign currency derivatives are recorded as investing activities.

Energy-Related Derivatives

The traditional operating companies and Southern Power enter into energy-related derivatives to hedge exposures to electricity, gas, and other fuel price changes. However, due to cost-based rate regulations and other various cost recovery mechanisms, the traditional operating companies have limited exposure to market volatility in commodity fuel prices and prices of electricity. Each of the traditional operating companies manages fuel-hedging programs, implemented per the guidelines of their respective state PSCs, through the use of financial derivative contracts, which is expected to continue to mitigate price volatility. Southern Power has limited exposure to market volatility in commodity fuel prices and prices of electricity because its long-term sales contracts shift substantially all fuel cost responsibility to the purchaser. However, Southern Power has been and may continue to be exposed to market volatility in energy-related commodity prices as a result of sales of uncontracted generating capacity.

To mitigate residual risks relative to movements in electricity prices, the traditional operating companies and Southern Power may enter into physical fixed-price contracts for the purchase and sale of electricity through the wholesale electricity market. To mitigate residual risks relative to movements in gas prices, the traditional operating companies and Southern Power may enter into fixed-price contracts for natural gas purchases; however, a significant portion of contracts are priced at market.

Energy-related derivative contracts are accounted for under one of three methods:

• Regulatory Hedges — Energy-related derivative contracts which are designated as regulatory hedges relate primarily to the traditional operating companies' fuel hedging programs, where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as the underlying fuel is used in operations and ultimately recovered through the respective fuel cost recovery clauses.

• Cash Flow Hedges — Gains and losses on energy-related derivatives designated as cash flow hedges which are mainly used to hedge anticipated purchases and sales and are initially deferred in OCI before being recognized in the statements of income in the same period as the hedged transactions are reflected in earnings.

• Not Designated — Gains and losses on energy-related derivative contracts that are not designated or fail to qualify as hedges are recognized in the statements of income as incurred.

Some energy-related derivative contracts require physical delivery as opposed to financial settlement, and this type of derivative is both common and prevalent within the electric industry. When an energy-related derivative contract is settled physically, any cumulative unrealized gain or loss is reversed and the contract price is recognized in the respective line item representing the actual price of the underlying goods being delivered.

At March 31, 2013, the net volume of energy-related derivative contracts for natural gas positions for the Southern Company system, together with the longest hedge date over which the respective entity is hedging its exposure to the variability in future cash flows for forecasted transactions and the longest date for derivatives not designated as hedges, were as follows:

	Net Purchased mmBtu	Longest Hedge Date	Longest Non-Hedge Date
	(in millions)
Southern Company	259	2017	2017
Alabama Power	58	2017	—
Georgia Power	90	2017	—
Gulf Power	70	2017	—
Mississippi Power	36	2017	—
Southern Power	5	—	2017

In addition to the volumes discussed in the above table, the traditional operating companies and Southern Power enter into physical natural gas supply contracts that provide the option to sell back excess gas due to operational constraints. The maximum expected volume of natural gas subject to such a feature is 11 million mmBtu for Southern Company, 1 million mmBtu for Alabama Power, 5 million mmBtu for Georgia Power, 1 million mmBtu for Gulf Power, 1 million mmBtu for Mississippi Power, and 3 million mmBtu for Southern Power.

For cash flow hedges, the amounts expected to be reclassified from AOCI to revenue and fuel expense for the next 12-month period ending March 31, 2014 are immaterial for all registrants.

Interest Rate Derivatives

Southern Company and certain subsidiaries may also enter into interest rate derivatives to hedge exposure to changes in interest rates. The derivatives employed as hedging instruments are structured to minimize ineffectiveness. Derivatives related to existing variable rate securities or forecasted transactions are accounted for as cash flow hedges where the effective portion of the derivatives' fair value gains or losses is recorded in OCI and is reclassified into earnings at the same time the hedged transactions affect earnings, with any ineffectiveness recorded directly to earnings. Derivatives related to existing fixed rate securities are accounted for as fair value hedges, where the derivatives' fair value gains or losses and hedged items' fair value gains or losses are both recorded directly to earnings, providing an offset, with any difference representing ineffectiveness.

At March 31, 2013, the following interest rate derivatives were outstanding:

	Notional Amount		Interest Rate Received		Interest Rate Paid		Hedge Maturity Date	Fair Value Gain (Loss) March 31, 2013
	(in millions)							(in millions)
Fair value hedges of existing debt
Southern Company	$	350	4.15	%	3-month LIBOR  + 1.96%	(a)	May 2014	$	10

(a) Weighted average

The following table reflects the estimated pre-tax gains (losses) that will be reclassified from AOCI to interest expense for the next 12-month period ending March 31, 2014, together with the longest date that total deferred gains and losses are expected to be amortized into earnings.

Registrant	Estimated Gain (Loss) to be Reclassified for the 12 Months Ending March 31, 2014			Total Deferred Gains (Losses) Amortized  Through
	(in millions)
Southern Company	$	(12	)	2037
Alabama Power	(3		)	2035
Georgia Power	(3		)	2037
Gulf Power	(1		)	2020
Mississippi Power	(1		)	2022
Southern Power	(4		)	2016

Foreign Currency Derivatives

Southern Company and certain subsidiaries may enter into foreign currency derivatives to hedge exposure to changes in foreign currency exchange rates arising from purchases of equipment denominated in a currency other than U.S. dollars. Derivatives related to a firm commitment in a foreign currency transaction are accounted for as fair value hedges where the derivatives' fair value gains or losses and the hedged items' fair value gains or losses are both recorded directly to earnings. Derivatives related to a forecasted transaction are accounted for as a cash flow hedge where the effective portion of the derivatives' fair value gains or losses is recorded in OCI and is reclassified into earnings at the same time the hedged transactions affect earnings. Any ineffectiveness is typically recorded directly to earnings; however, Mississippi Power has regulatory approval allowing it to defer any ineffectiveness associated with firm commitments related to the Kemper IGCC to a regulatory asset. The derivatives employed as hedging instruments are structured to minimize ineffectiveness. At March 31, 2013, the fair value of the foreign currency derivatives outstanding was immaterial.

Derivative Financial Statement Presentation and Amounts

At March 31, 2013, the fair value of energy-related derivatives and interest rate derivatives was reflected in the balance sheets as follows:

Asset Derivatives at March 31, 2013
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Other current assets	$	25	$	7	$	6	$	9	$	3
Other deferred charges and assets	20		5		7		5		3
Total derivatives designated as hedging instruments for regulatory purposes	$	45	$	12	$	13	$	14	$	6	N/A
Derivatives designated as hedging instruments in cash flow and fair value hedges
Interest rate derivatives:
Other current assets	$	7	$	—	$	—	$	—	$	—	$	—
Other deferred charges and assets	3		—		—		—		—		—
Total derivatives designated as hedging instruments in cash flow and fair value hedges	$	10	$	—	$	—	$	—	$	—	$	—
Derivatives not designated as hedging instruments
Energy-related derivatives:
Assets from risk management activities	$	3	$	—	$	—	$	—	$	—	$	3
Other deferred charges and assets	2		—		—		—		—		2
Total derivatives not designated as hedging instruments	$	5	$	—	$	—	$	—	$	—	$	5
Total asset derivatives	$	60	$	12	$	13	$	14	$	6	$	5

Liability Derivatives at March 31, 2013
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Liabilities from risk management activities	$	36	$	5	$	17	$	8	$	6
Other deferred credits and liabilities	26		2		11		8		5
Total derivatives designated as hedging instruments for regulatory purposes	$	62	$	7	$	28	$	16	$	11	N/A
Derivatives not designated as hedging instruments
Energy-related derivatives:
Liabilities from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Total liability derivatives	$	63	$	7	$	28	$	16	$	11	$	1

At December 31, 2012, the fair value of energy-related derivatives and interest rate derivatives was reflected in the balance sheets as follows:

Asset Derivatives at December 31, 2012
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Other current assets	$	10	$	2	$	6	$	1	$	1
Other deferred charges and assets	13		3		5		3		2
Total derivatives designated as hedging instruments for regulatory purposes	$	23	$	5	$	11	$	4	$	3	N/A
Derivatives designated as hedging instruments in cash flow and fair value hedges
Interest rate derivatives:
Other current assets	$	7	$	—	$	—	$	—	$	—	$	—
Other deferred charges and assets	3		—		—		—		—		—
Total derivatives designated as hedging instruments in cash flow and fair value hedges	$	10	$	—	$	—	$	—	$	—	$	—
Derivatives not designated as hedging instruments
Energy-related derivatives:
Assets from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Other deferred charges and assets	2		—		—		—		—		2
Total derivatives not designated as hedging instruments	$	3	$	—	$	—	$	—	$	—	$	3
Total asset derivatives	$	36	$	5	$	11	$	4	$	3	$	3

Liability Derivatives at December 31, 2012
	Fair Value
Derivative Category and Balance Sheet Location	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern   Power
	(in millions)
Derivatives designated as hedging instruments for regulatory purposes
Energy-related derivatives:
Liabilities from risk management activities	$	74	$	14	$	30	$	17	$	13
Other deferred credits and liabilities	35		4		15		10		6
Total derivatives designated as hedging instruments for regulatory purposes	$	109	$	18	$	45	$	27	$	19	N/A
Derivatives not designated as hedging instruments
Energy-related derivatives:
Liabilities from risk management activities	$	1	$	—	$	—	$	—	$	—	$	1
Other deferred credits and liabilities	1		—		—		—		—		1
Total derivatives not designated as hedging instruments	$	2	$	—	$	—	$	—	$	—	$	2
Total liability derivatives	$	111	$	18	$	45	$	27	$	19	$	2

All derivative instruments are measured at fair value. See Note (C) herein for additional information.

Balance Sheet Offsetting

The derivative contracts of Southern Company, the traditional operating companies, and Southern Power are not subject to master netting arrangements or similar agreements and are reported gross on each registrant's financial statements. Some of these energy-related and interest rate derivative contracts contain certain provisions that permit intra-contract netting of derivative receivables and payables for routine billing and offsets related to events of default and settlements. Amounts related to energy-related derivative contracts are presented in the following tables. Interest rate derivatives presented in the tables above do not have amounts available for offset and are therefore excluded from the offsetting disclosure tables below.

Derivative Contracts at March 31, 2013
	Fair Value
	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power			Southern   Power
	(in millions)
Assets
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	50		$	12		$	13		$	14		$	6		$	5
Gross amounts not offset in the Balance Sheet (b)	(39		)	(5		)	(13		)	(10		)	(5		)	(1		)
Net energy-related derivative assets	$	11		$	7		$	—		$	4		$	1		$	4
Liabilities
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	63		$	7		$	28		$	16		$	11		$	1
Gross amounts not offset in the Balance Sheet (b)	(39		)	(5		)	(13		)	(10		)	(5		)	(1		)
Net energy-related derivative liabilities	$	24		$	2		$	15		$	6		$	6		$	—

(a) None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

(b) Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

Derivative Contracts at December 31, 2012
	Fair Value
	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power			Southern   Power
	(in millions)
Assets
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	26		$	5		$	11		$	4		$	3		$	3
Gross amounts not offset in the Balance Sheet (b)	(23		)	(4		)	(11		)	(4		)	(2		)	(1		)
Net energy-related derivative assets	$	3		$	1		$	—		$	—		$	1		$	2
Liabilities
Energy-related derivatives:
Energy-related derivatives presented in the Balance Sheet (a)	$	111		$	18		$	45		$	27		$	19		$	2
Gross amounts not offset in the Balance Sheet (b)	(23		)	(4		)	(11		)	(4		)	(2		)	(1		)
Net energy-related derivative liabilities	$	88		$	14		$	34		$	23		$	17		$	1

(a) None of the registrants offset fair value amounts for multiple derivative instruments executed with the same counterparty on the balance sheets; therefore, gross and net amounts of derivative assets and liabilities presented on the balance sheets are the same.

(b) Includes gross amounts subject to netting terms that are not offset on the balance sheets and any cash/financial collateral pledged or received.

At March 31, 2013 and December 31, 2012, the pre-tax effects of unrealized derivative gains (losses) arising from energy-related derivative instruments designated as regulatory hedging instruments and deferred on the balance sheets were as follows:

Regulatory Hedge Unrealized Gain (Loss) Recognized on the Balance Sheet at March 31, 2013
Derivative Category and Balance Sheet Location	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power
	(in millions)
Energy-related derivatives:
Other regulatory assets, current	$	(36	)	$	(5	)	$	(17	)	$	(8	)	$	(6	)
Other regulatory assets, deferred	(26		)	(2		)	(11		)	(8		)	(5		)
Other regulatory liabilities, current	25			7			6			9			3
Other regulatory liabilities, deferred	20			5			—			5			3
Other deferred credits and liabilities(a)	—			—			7			—			—
Total energy-related derivative gains (losses)	$	(17	)	$	5		$	(15	)	$	(2	)	$	(5	)

(a) Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities.

Regulatory Hedge Unrealized Gain (Loss) Recognized on the Balance Sheet at December 31, 2012
Derivative Category and Balance Sheet Location	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi Power
	(in millions)
Energy-related derivatives:
Other regulatory assets, current	$	(74	)	$	(14	)	$	(30	)	$	(17	)	$	(13	)
Other regulatory assets, deferred	(35		)	(4		)	(15		)	(10		)	(6		)
Other regulatory liabilities, current	10			2			6			1			1
Other regulatory liabilities, deferred	13			3			—			3			2
Other deferred credits and liabilities(a)	—			—			5			—			—
Total energy-related derivative gains (losses)	$	(86	)	$	(13	)	$	(34	)	$	(23	)	$	(16	)

(a) Georgia Power includes Other regulatory liabilities, deferred in Other deferred credits and liabilities.

For the three months ended March 31, 2013 and March 31, 2012, the pre-tax effects of interest rate derivatives designated as fair value hedging instruments on Southern Company's statements of income were immaterial.

For the three months ended March 31, 2013 and March 31, 2012, the pre-tax effects of foreign currency derivatives designated as fair value hedging instruments on Southern Company's and Mississippi Power's statements of income were immaterial and were offset with changes in the fair value of the purchase commitment related to equipment purchases; therefore, there was no impact on Southern Company's or Mississippi Power's statements of income.

For the three months ended March 31, 2013 and 2012, the pre-tax effects of interest rate derivatives designated as cash flow hedging instruments on the statements of income were as follows:

Derivatives in Cash Flow Hedging Relationships	Gain (Loss) Recognized in OCI on Derivative (Effective Portion)					Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
						Statements of Income Location	Amount
	2013		2012				2013			2012
	(in millions)						(in millions)
Southern Company
Interest rate derivatives	$	—	$	6		Interest expense, net of amounts capitalized	$	(5	)	$	(3	)
Alabama Power
Interest rate derivatives	$	—	$	7		Interest expense, net of amounts capitalized	$	(1	)	$	—
Georgia Power
Interest rate derivatives	$	—	$	—		Interest expense, net of amounts capitalized	$	(1	)	$	(1	)
Mississippi Power
Interest rate derivatives	$	—	$	(1	)	Interest expense, net of amounts capitalized	$	—		$	—
Southern Power
Interest rate derivatives	$	—	$	—		Interest expense, net of amounts capitalized	$	(3	)	$	(2	)

For the three months ended March 31, 2013 and 2012, the pre-tax effects of energy-related derivatives designated as cash flow hedging instruments on the statements of income were immaterial for all registrants.

There was no material ineffectiveness recorded in earnings for any registrant for any period presented.

For Southern Power's energy-related derivatives not designated as hedging instruments, a substantial portion of the pre-tax realized and unrealized gains and losses is associated with hedging fuel price risk of certain PPA customers and has no impact on net income or on fuel expense as presented in Southern Company's and Southern Power's statements of income. As a result, for the three months ended March 31, 2013 and 2012, the pre-tax effects of energy-related derivatives not designated as hedging instruments on Southern Company's and Southern Power's statements of income were immaterial.

For the three months ended March 31, 2013 and March 31, 2012, the pre-tax effects of foreign currency derivatives not designated as hedging instruments were recorded as regulatory assets and liabilities and were immaterial for Southern Company and Mississippi Power.

Contingent Features

The registrants do not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain derivatives that could require collateral, but not accelerated payment, in the event of various credit rating changes of certain Southern Company subsidiaries.

At March 31, 2013, the fair value of derivative liabilities with contingent features, by registrant, was as follows:

	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern Power
					(in millions)
Derivative liabilities	$	1	$	—	$	2	$	—	$	—	$	—

At March 31, 2013, the registrants had no collateral posted with their derivative counterparties. If collateral is required, fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral are not offset against fair value amounts recognized for derivatives executed with the same counterparty. The maximum potential collateral requirements arising from the credit-risk-related contingent features, at a rating below BBB- and/or Baa3, were $1 million for each registrant. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. For the traditional operating companies and Southern Power, included in these amounts are certain agreements that could require collateral in the event that one or more Power Pool participants have a credit rating change to below investment grade.

Southern Company, the traditional operating companies, and Southern Power are exposed to losses related to financial instruments in the event of counterparties' nonperformance. Southern Company, the traditional operating companies, and Southern Power only enter into agreements and material transactions with counterparties that have investment grade credit ratings by Moody's and S&P or with counterparties who have posted collateral to cover potential credit exposure. Southern Company, the traditional operating companies, and Southern Power have also established risk management policies and controls to determine and monitor the creditworthiness of counterparties in order to mitigate Southern Company's, the traditional operating companies', and Southern Power's exposure to counterparty credit risk. Therefore, Southern Company, the traditional operating companies, and Southern Power do not anticipate a material adverse effect on the financial statements as a result of counterparty nonperformance.

XML

Fair Value Measurements - Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Fair Value Measurements (Textual) [Abstract]
Increase in fair value of funds including reinvested interest and dividends	$ 59
Alabama Power [Member]
Fair Value Measurements (Textual) [Abstract]
Increase in fair value of funds including reinvested interest and dividends	38
Georgia Power [Member]
Fair Value Measurements (Textual) [Abstract]
Increase in fair value of funds including reinvested interest and dividends	21
Notices Of Withdrawal Foreign Equity Funds	20.00%
Maximum Number of Months Related to Maturities in Portfolio Not to Exceeded from Date of Purchase	13 months
Maximum Number of Days Related to Dollar Weighted Average Portfolio Maturities Regarding Commingled Funds	90 days
Minimum [Member] | Georgia Power [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Withdrawal Of Foreign Equity Fund Investment	1
Fair Value Measurements (Textual) [Abstract]
Foreign Equity Fund Investment	$ 10

XML

Segment and Related Information - Financial Data for Products and Services (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Financial data for Products and Services
Electric Utilities' Revenues	$ 3,885	$ 3,589
Retail [Member]
Financial data for Products and Services
Electric Utilities' Revenues	3,298	3,092
Wholesale [Member]
Financial data for Products and Services
Electric Utilities' Revenues	432	349
Other [Member]
Financial data for Products and Services
Electric Utilities' Revenues	$ 155	$ 148

XML

Stockholders' Equity (Policies)

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Earnings per Share

Earnings per Share

For Southern Company, the only difference in computing basic and diluted earnings per share is attributable to awards outstanding under the stock option and performance share plans. See Note 8 to the financial statements of Southern Company in Item 8 of the Form 10-K for information on the stock option and performance share plans. The effects of both stock options and performance share award units were determined using the treasury stock method.

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Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Pension Plans and Postretirement Plans

Components of the net periodic benefit costs for the three months ended March 31, 2013 and 2012 were as follows:

Pension Plans	Southern Company			Alabama Power			Georgia Power			Gulf Power			Mississippi   Power
	(in millions)
Three Months Ended March 31, 2013
Service cost	$	58		$	13		$	17		$	3		$	3
Interest cost	97			23			34			4			5
Expected return on plan assets	(151		)	(39		)	(53		)	(6		)	(7		)
Amortization:
Prior service costs	7			2			3			—			—
Net (gain)/loss	50			13			19			2			2
Net cost	$	61		$	12		$	20		$	3		$	3
Three Months Ended March 31, 2012
Service cost	$	50		$	11		$	15		$	2		$	2
Interest cost	98			23			35			4			5
Expected return on plan assets	(145		)	(40		)	(55		)	(6		)	(6		)
Amortization:
Prior service costs	7			2			3			—			—
Net (gain)/loss	24			6			8			1			1
Net cost	$	34		$	2		$	6		$	1		$	2

Postretirement Benefits	Southern Company			Alabama Power			Georgia Power			Gulf Power		Mississippi Power
	(in millions)
Three Months Ended March 31, 2013
Service cost	$	6		$	2		$	2		$	—	$	—
Interest cost	19			5			8			1		1
Expected return on plan assets	(14		)	(6		)	(6		)	—		—
Amortization:
Transition obligation	1			—			1			—		—
Prior service costs	1			1			—			—		—
Net (gain)/loss	3			—			2			—		—
Net cost	$	16		$	2		$	7		$	1	$	1
Three Months Ended March 31, 2012
Service cost	$	5		$	1		$	1		$	—	$	—
Interest cost	21			5			9			1		1
Expected return on plan assets	(15		)	(6		)	(7		)	—		—
Amortization:
Transition obligation	2			1			2			—		—
Prior service costs	1			1			—			—		—
Net (gain)/loss	2			—			1			—		—
Net cost	$	16		$	2		$	6		$	1	$	1

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Investment In Leveraged Leases (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 MW
Leases [Abstract]
After Tax Charge To Income	$ 16
Capacity generation facility	440
Commitment to invest capital	$ 60
Commitment term for investment capital	3 years
Commitment term for nonrecourse debt	19 years

XML

Effective Tax Rate and Unrecognized Tax Benefits - Narrative (Details)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Effective Tax Rate and Unrecognized Tax Benefits (Textual) [Abstract]
Effective tax rate	24.50%	34.20%
Significantly increase or decrease in the amount of the unrecognized tax benefits associated with a majority of Southern	12 months
Alabama Power [Member]
Effective Tax Rate and Unrecognized Tax Benefits (Textual) [Abstract]
Effective tax rate	39.20%	38.30%
Georgia Power [Member]
Effective Tax Rate and Unrecognized Tax Benefits (Textual) [Abstract]
Effective tax rate	38.10%	34.90%
Gulf Power [Member]
Effective Tax Rate and Unrecognized Tax Benefits (Textual) [Abstract]
Effective tax rate	37.60%	34.60%
Mississippi Power [Member]
Effective Tax Rate and Unrecognized Tax Benefits (Textual) [Abstract]
Effective tax rate	(40.80%)	24.70%
Southern Power [Member]
Effective Tax Rate and Unrecognized Tax Benefits (Textual) [Abstract]
Effective tax rate	33.50%	31.30%

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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Activities:
Consolidated net income	$ 97,000,000	$ 384,000,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	568,000,000	529,000,000
Deferred income taxes	(92,000,000)	104,000,000
Allowance for equity funds used during construction	(41,000,000)	(31,000,000)
Leveraged lease income (loss)	21,000,000	(6,000,000)
Pension, postretirement, and other employee benefits	22,000,000	16,000,000
Stock based compensation expense	26,000,000	25,000,000
Estimated loss on Kemper IGCC	540,000,000	0
Other, net	(62,000,000)	8,000,000
Changes in certain current assets and liabilities --
-Receivables	29,000,000	372,000,000
-Fossil fuel stock	36,000,000	(218,000,000)
-Materials and supplies	52,000,000	4,000,000
-Other current assets	(72,000,000)	(64,000,000)
-Accounts payable	(47,000,000)	(136,000,000)
-Accrued taxes	(98,000,000)	(167,000,000)
-Accrued compensation	(282,000,000)	(305,000,000)
-Other current liabilities	40,000,000	53,000,000
Net cash provided from operating activities	737,000,000	568,000,000
Investing Activities:
Property additions	(1,197,000,000)	(1,231,000,000)
Investment of restricted cash	(78,000,000)	1,000,000
Nuclear decommissioning trust fund purchases	(262,000,000)	(336,000,000)
Nuclear decommissioning trust fund sales	261,000,000	334,000,000
Cost of removal, net of salvage	(30,000,000)	(32,000,000)
Change in construction payables	6,000,000	(153,000,000)
Other investing activities	21,000,000	(10,000,000)
Net cash used for investing activities	(1,279,000,000)	(1,427,000,000)
Financing Activities:
Increase (decrease) in notes payable, net	468,000,000	174,000,000
Proceeds --
Long-term debt issuances	1,035,000,000	1,400,000,000
Interest-bearing refundable deposit related to asset sale	0	150,000,000
Common stock issuances	42,000,000	116,000,000
Redemptions --
Long-term debt	(656,000,000)	(827,000,000)
Common stock repurchased	(18,000,000)	0
Payment of common stock dividends	(426,000,000)	(410,000,000)
Payment of dividends on preferred and preference stock of subsidiaries	(16,000,000)	(16,000,000)
Other financing activities	0	1,000,000
Net cash provided from (used for) financing activities	429,000,000	588,000,000
Net Change in Cash and Cash Equivalents	(113,000,000)	(271,000,000)
Cash and Cash Equivalents at Beginning of Period	628,000,000	1,315,000,000
Cash and Cash Equivalents at End of Period	515,000,000	1,044,000,000
Cash paid (received) during the period for --
Interest (net of capitalized amounts)	187,000,000	178,000,000
Income taxes, net	4,000,000	2,000,000
Noncash transactions - accrued property additions at end of period	501,000,000	420,000,000
Alabama Power [Member]
Operating Activities:
Consolidated net income	151,000,000	136,000,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	206,000,000	189,000,000
Deferred income taxes	25,000,000	31,000,000
Allowance for equity funds used during construction	(8,000,000)	(5,000,000)
Stock based compensation expense	4,000,000	4,000,000
Other, net	5,000,000	(11,000,000)
Changes in certain current assets and liabilities --
-Receivables	(13,000,000)	89,000,000
-Fossil fuel stock	28,000,000	(81,000,000)
-Materials and supplies	16,000,000	2,000,000
-Other current assets	(71,000,000)	(51,000,000)
-Accounts payable	(124,000,000)	(149,000,000)
-Accrued taxes	90,000,000	43,000,000
-Accrued compensation	(61,000,000)	(63,000,000)
-Retail fuel cost over recovery - short-term	21,000,000	1,000,000
-Other current liabilities	1,000,000	5,000,000
Net cash provided from operating activities	270,000,000	140,000,000
Investing Activities:
Property additions	(274,000,000)	(244,000,000)
Nuclear decommissioning trust fund purchases	(57,000,000)	(49,000,000)
Nuclear decommissioning trust fund sales	57,000,000	49,000,000
Cost of removal, net of salvage	(9,000,000)	(6,000,000)
Change in construction payables	(1,000,000)	14,000,000
Other investing activities	37,000,000	1,000,000
Net cash used for investing activities	(247,000,000)	(235,000,000)
Financing Activities:
Increase (decrease) in notes payable, net	45,000,000	0
Proceeds --
Capital contributions from parent company	5,000,000	5,000,000
Senior notes issuances	0	250,000,000
Redemptions --
Payment of preferred and preference stock dividends	(10,000,000)	(10,000,000)
Payment of common stock dividends	(132,000,000)	(135,000,000)
Other financing activities	(3,000,000)	(4,000,000)
Net cash provided from (used for) financing activities	(95,000,000)	106,000,000
Net Change in Cash and Cash Equivalents	(72,000,000)	11,000,000
Cash and Cash Equivalents at Beginning of Period	137,000,000	344,000,000
Cash and Cash Equivalents at End of Period	65,000,000	355,000,000
Cash paid (received) during the period for --
Interest (net of capitalized amounts)	64,000,000	66,000,000
Income taxes, net	(3,000,000)	22,000,000
Noncash transactions - accrued property additions at end of period	30,000,000	32,000,000
Georgia Power [Member]
Operating Activities:
Consolidated net income	201,000,000	171,000,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	239,000,000	229,000,000
Deferred income taxes	59,000,000	38,000,000
Allowance for equity funds used during construction	(6,000,000)	(13,000,000)
Retail fuel cost over recovery - long-term	(58,000,000)	0
Other, net	(27,000,000)	10,000,000
Deferred expenses	31,000,000	23,000,000
Changes in certain current assets and liabilities --
-Receivables	40,000,000	258,000,000
-Fossil fuel stock	(4,000,000)	(122,000,000)
-Prepaid income taxes	11,000,000	10,000,000
-Other current assets	42,000,000	(4,000,000)
-Accounts payable	78,000,000	(62,000,000)
-Accrued taxes	(127,000,000)	(206,000,000)
-Accrued compensation	(66,000,000)	(80,000,000)
-Retail fuel cost over recovery - short-term	10,000,000	22,000,000
-Other current liabilities	5,000,000	38,000,000
Net cash provided from operating activities	428,000,000	312,000,000
Investing Activities:
Property additions	(419,000,000)	(476,000,000)
Investment of restricted cash	(18,000,000)	0
Nuclear decommissioning trust fund purchases	(205,000,000)	(287,000,000)
Nuclear decommissioning trust fund sales	204,000,000	285,000,000
Cost of removal, net of salvage	(17,000,000)	(15,000,000)
Change in construction payables, net of joint owner portion	(25,000,000)	(203,000,000)
Other investing activities	1,000,000	15,000,000
Net cash used for investing activities	(479,000,000)	(681,000,000)
Financing Activities:
Increase (decrease) in notes payable, net	300,000,000	99,000,000
Proceeds --
Capital contributions from parent company	11,000,000	9,000,000
Pollution control revenue bonds issuances	18,000,000	0
Senior notes issuances	650,000,000	750,000,000
Redemptions --
Senior notes	(650,000,000)	0
Other long-term debt	0	(250,000,000)
Payment of preferred and preference stock dividends	(4,000,000)	(4,000,000)
Payment of common stock dividends	(227,000,000)	(227,000,000)
Other financing activities	(13,000,000)	(8,000,000)
Net cash provided from (used for) financing activities	85,000,000	369,000,000
Net Change in Cash and Cash Equivalents	34,000,000	0
Cash and Cash Equivalents at Beginning of Period	45,000,000	13,000,000
Cash and Cash Equivalents at End of Period	79,000,000	13,000,000
Cash paid (received) during the period for --
Interest (net of capitalized amounts)	72,000,000	58,000,000
Income taxes, net	3,000,000	28,000,000
Noncash transactions - accrued property additions at end of period	212,000,000	178,000,000
Gulf Power [Member]
Operating Activities:
Consolidated net income	23,343,000	22,217,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	38,794,000	34,844,000
Deferred income taxes	16,777,000	32,505,000
Allowance for equity funds used during construction	(1,134,000)	(1,237,000)
Pension, postretirement, and other employee benefits	2,889,000	1,315,000
Stock based compensation expense	669,000	685,000
Other, net	2,485,000	5,478,000
Changes in certain current assets and liabilities --
-Receivables	(2,305,000)	14,754,000
-Prepayments	934,000	1,559,000
-Fossil fuel stock	1,423,000	1,543,000
-Materials and supplies	(513,000)	(1,476,000)
-Prepaid income taxes	(7,667,000)	17,324,000
-Accounts payable	(17,812,000)	(21,516,000)
-Accrued taxes	5,380,000	(1,453,000)
-Accrued compensation	(9,451,000)	(9,190,000)
-Over recovered regulatory clause revenues	(10,186,000)	14,516,000
-Other current liabilities	6,073,000	5,637,000
Net cash provided from operating activities	49,699,000	117,505,000
Investing Activities:
Property additions	(66,696,000)	(94,879,000)
Cost of removal, net of salvage	(3,469,000)	(9,342,000)
Change in construction payables	1,787,000	7,773,000
Payments pursuant to long-term service agreements	(1,558,000)	(2,274,000)
Other investing activities	243,000	(76,000)
Net cash used for investing activities	(69,693,000)	(98,798,000)
Financing Activities:
Increase (decrease) in notes payable, net	5,809,000	(27,338,000)
Proceeds --
Capital contributions from parent company	556,000	732,000
Common stock issuances	40,000,000	40,000,000
Redemptions --
Senior notes	0	(16,000)
Payment of preferred and preference stock dividends	(1,551,000)	(1,551,000)
Payment of common stock dividends	(28,850,000)	(28,950,000)
Other financing activities	(206,000)	198,000
Net cash provided from (used for) financing activities	15,758,000	(16,925,000)
Net Change in Cash and Cash Equivalents	(4,236,000)	1,782,000
Cash and Cash Equivalents at Beginning of Period	32,167,000	17,328,000
Cash and Cash Equivalents at End of Period	27,931,000	19,110,000
Cash paid (received) during the period for --
Interest (net of capitalized amounts)	8,306,000	9,352,000
Income taxes, net	3,886,000	(35,742,000)
Noncash transactions - accrued property additions at end of period	22,462,000	28,788,000
Mississippi Power [Member]
Operating Activities:
Consolidated net income	(245,888,000)	25,688,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	21,692,000	21,931,000
Deferred income taxes	(174,082,000)	(1,210,000)
Allowance for equity funds used during construction	(26,074,000)	(11,827,000)
Pension, postretirement, and other employee benefits	2,926,000	2,268,000
Stock based compensation expense	1,033,000	957,000
Estimated loss on Kemper IGCC	462,000,000	0
Regulatory assets associated with Kemper IGCC	(6,843,000)	(2,243,000)
Other, net	(628,000)	1,117,000
Convertible investment tax credits	0	13,974,000
Hedge settlements	0	(15,983,000)
Changes in certain current assets and liabilities --
-Receivables	(5,226,000)	14,536,000
-Fossil fuel stock	8,415,000	(16,188,000)
-Materials and supplies	(4,744,000)	(538,000)
-Prepaid income taxes	1,573,000	4,168,000
-Other current assets	(2,389,000)	(4,357,000)
-Accounts payable	(13,783,000)	(11,558,000)
-Accrued taxes	(45,429,000)	(31,434,000)
-Accrued interest	6,570,000	9,514,000
-Accrued compensation	(10,247,000)	(10,803,000)
-Over recovered regulatory clause revenues	2,996,000	12,627,000
-Other current liabilities	2,971,000	(35,000)
Net cash provided from operating activities	(25,157,000)	604,000
Investing Activities:
Property additions	(369,313,000)	(370,923,000)
Cost of removal, net of salvage	(902,000)	(1,149,000)
Change in construction payables	23,150,000	30,080,000
Capital grant proceeds	1,784,000	1,816,000
Other investing activities	(7,145,000)	(4,207,000)
Net cash used for investing activities	(352,426,000)	(344,383,000)
Proceeds --
Capital contributions from parent company	100,552,000	150,735,000
Bonds-Other	15,814,000	0
Interest-bearing refundable deposit related to asset sale	0	150,000,000
Senior notes issuances	0	400,000,000
Other long-term debt issuances	350,000,000	0
Redemptions --
Capital leases	0	(377,000)
Other long-term debt	0	(75,000,000)
Payment of preferred and preference stock dividends	(433,000)	(433,000)
Payment of common stock dividends	(44,190,000)	(26,700,000)
Other financing activities	(1,409,000)	715,000
Net cash provided from (used for) financing activities	420,334,000	598,940,000
Net Change in Cash and Cash Equivalents	42,751,000	255,161,000
Cash and Cash Equivalents at Beginning of Period	145,008,000	211,585,000
Cash and Cash Equivalents at End of Period	187,759,000	466,746,000
Cash paid (received) during the period for --
Interest (net of capitalized amounts)	4,860,000	0
Income taxes, net	(25,000)	(11,994,000)
Noncash transactions - accrued property additions at end of period	238,013,000	165,982,000
Southern Power [Member]
Operating Activities:
Consolidated net income	29,192,000	29,316,000
Adjustments to reconcile consolidated net income to net cash provided from operating activities --
Depreciation and amortization, total	42,790,000	34,887,000
Deferred income taxes	13,587,000	9,917,000
Deferred revenues	(20,432,000)	(16,686,000)
Other, net	2,979,000	1,326,000
Convertible investment tax credits	(493,000)	(3,900,000)
Mark-to-market adjustments	(2,746,000)	6,467,000
Changes in certain current assets and liabilities --
-Receivables	11,743,000	12,400,000
-Fossil fuel stock	1,840,000	(755,000)
-Materials and supplies	(1,546,000)	(1,167,000)
-Prepaid income taxes	1,600,000	(5,105,000)
-Other current assets	1,324,000	(2,083,000)
-Accounts payable	(6,933,000)	(14,590,000)
-Accrued taxes	4,155,000	4,375,000
-Accrued interest	(10,841,000)	(10,172,000)
-Other current liabilities	(314,000)	(2,000)
Net cash provided from operating activities	65,905,000	44,228,000
Investing Activities:
Property additions	(58,553,000)	(32,450,000)
Change in construction payables	3,704,000	(999,000)
Payments pursuant to long-term service agreements	(11,741,000)	(11,415,000)
Other investing activities	(224,000)	(2,848,000)
Net cash used for investing activities	(66,814,000)	(47,712,000)
Financing Activities:
Increase (decrease) in notes payable, net	76,985,000	20,165,000
Proceeds --
Capital contributions from parent company	1,033,000	1,219,000
Other long-term debt issuances	1,717,000	0
Redemptions --
Other long-term debt	(220,000)	(150,000)
Payment of common stock dividends	(32,280,000)	(31,750,000)
Other financing activities	678,000	25,000
Net cash provided from (used for) financing activities	47,913,000	(10,491,000)
Net Change in Cash and Cash Equivalents	47,004,000	(13,975,000)
Cash and Cash Equivalents at Beginning of Period	28,592,000	16,943,000
Cash and Cash Equivalents at End of Period	75,596,000	2,968,000
Cash paid (received) during the period for --
Interest (net of capitalized amounts)	28,120,000	20,966,000
Income taxes, net	(179,000)	10,820,000
Noncash transactions - accrued property additions at end of period	$ 8,907,000	$ 31,591,000

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Contingencies and Regulatory Matters

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

CONTINGENCIES AND REGULATORY MATTERS

CONTINGENCIES AND REGULATORY MATTERS

See Note 3 to the financial statements of the registrants (other than Mississippi Power) in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A for information relating to various lawsuits, other contingencies, and regulatory matters.

General Litigation Matters

Each registrant is subject to certain claims and legal actions arising in the ordinary course of business. In addition, business activities of Southern Company's subsidiaries are subject to extensive governmental regulation related to public health and the environment, such as regulation of air emissions and water discharges. Litigation over environmental issues and claims of various types, including property damage, personal injury, common law nuisance, and citizen enforcement of environmental requirements, such as air quality and water standards, has increased generally throughout the U.S. In particular, personal injury, property damage, and other claims for damages alleged to have been caused by carbon dioxide (CO₂) and other emissions, coal combustion byproducts, and alleged exposure to hazardous materials, and/or requests for injunctive relief in connection with such matters, have become more frequent. The ultimate outcome of such pending or potential litigation against each registrant and any subsidiaries cannot be predicted at this time; however, for current proceedings not specifically reported herein or in Note 3 to the financial statements of each registrant (other than Mississippi Power) in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power in Item 8 of the Form 10-K/A, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on such registrant's financial statements.

Environmental Matters

New Source Review Actions

In 1999, the EPA brought a civil action in the U.S. District Court for the Northern District of Georgia against certain Southern Company subsidiaries, including Alabama Power and Georgia Power, alleging that these subsidiaries had violated the NSR provisions of the Clean Air Act and related state laws at certain coal-fired generating facilities. The EPA alleged NSR violations at five coal-fired generating facilities operated by Alabama Power, including a unit co-owned by Mississippi Power, and three coal-fired generating facilities operated by Georgia Power, including a unit co-owned by Gulf Power. The civil action sought penalties and injunctive relief, including an order requiring installation of the best available control technology at the affected units. The case against Georgia Power (including claims related to the unit co-owned by Gulf Power) was administratively closed in 2001 and has not been reopened. After Alabama Power was dismissed from the original action, the EPA filed a separate action in 2001 against Alabama Power (including claims related to the unit co-owned by Mississippi Power) in the U.S. District Court for the Northern District of Alabama.

In 2006, the U.S. District Court for the Northern District of Alabama entered a consent decree, resolving claims relating to the alleged NSR violations at Plant Miller. In 2010, the EPA dismissed five of its eight remaining claims against Alabama Power, leaving only three claims, including one relating to the unit co-owned by Mississippi Power. In 2011, the U.S. District Court for the Northern District of Alabama granted Alabama Power summary judgment on all remaining claims and dismissed the case with prejudice. That judgment is on appeal to the U.S. Court of Appeals for the Eleventh Circuit. In February 2012, the EPA filed a motion in the U.S. District Court for the Northern District of Alabama seeking vacatur of the judgment and recusal of the judge in the case involving Alabama Power.

Southern Company and each traditional operating company believe each such traditional operating company complied with applicable laws and regulations in effect at the time the work in question took place. The Clean Air Act authorizes maximum civil penalties of $25,000 to $37,500 per day, per violation, depending on the date of the alleged violation. An adverse outcome could require substantial capital expenditures that cannot be determined at this time and could possibly require payment of substantial penalties. Such expenditures could affect future results of operations, cash flows, and financial condition if such costs are not recovered through regulated rates. The ultimate outcome of these matters cannot be determined at this time.

Climate Change Litigation

Kivalina Case

In 2008, the Native Village of Kivalina and the City of Kivalina filed a lawsuit in the U.S. District Court for the Northern District of California against several electric utilities (including Southern Company), several oil companies, and a coal company. The plaintiffs allege that the village is being destroyed by erosion allegedly caused by global warming that the plaintiffs attribute to emissions of greenhouse gases by the defendants. The plaintiffs assert claims for public and private nuisance and contend that some of the defendants (including Southern Company) acted in concert and are therefore jointly and severally liable for the plaintiffs' damages. The suit seeks damages for lost property values and for the cost of relocating the village, which is alleged to be $95 million to $400 million. In 2009, the U.S. District Court for the Northern District of California granted the defendants' motions to dismiss the case. In September 2012, the U.S. Court of Appeals for the Ninth Circuit upheld the U.S. District Court for the Northern District of California's dismissal of the case. In November 2012, the U.S. Court of Appeals for the Ninth Circuit denied the plaintiffs' request for review of the decision. On February 25, 2013, the plaintiffs filed a petition for writ of certiorari with the U.S. Supreme Court. Southern Company believes that these claims are without merit. While Southern Company believes the likelihood of loss is remote based on existing case law, it is not possible to predict with certainty whether Southern Company will incur any liability in connection with this matter. The ultimate outcome of this matter cannot be determined at this time.

Hurricane Katrina Case

In 2005, immediately following Hurricane Katrina, a lawsuit was filed in the U.S. District Court for the Southern District of Mississippi by Ned Comer on behalf of Mississippi residents seeking recovery for property damage and personal injuries caused by Hurricane Katrina. In 2006, the plaintiffs amended the complaint to include Southern Company and many other electric utilities, oil companies, chemical companies, and coal producers. The plaintiffs allege that the defendants contributed to climate change, which contributed to the intensity of Hurricane Katrina. In 2007, the U.S. District Court for the Southern District of Mississippi dismissed the case. On appeal to the U.S. Court of Appeals for the Fifth Circuit, a three-judge panel reversed the U.S. District Court for the Southern District of Mississippi, holding that the case could proceed, but, on rehearing, the full U.S. Court of Appeals for the Fifth Circuit dismissed the plaintiffs' appeal, resulting in reinstatement of the decision of the U.S. District Court for the Southern District of Mississippi in favor of the defendants. In 2011, the plaintiffs filed an amended version of their class action complaint, arguing that the earlier dismissal was on procedural grounds and under Mississippi law the plaintiffs have a right to re-file. The amended complaint was also filed against numerous chemical, coal, oil, and utility companies, including Alabama Power, Georgia Power, Gulf Power, and Southern Power. In March 2012, the U.S. District Court for the Southern District of Mississippi dismissed the plaintiffs' amended complaint. In April 2012, the plaintiffs appealed the case to the U.S. Court of Appeals for the Fifth Circuit. Each Southern Company entity named in the lawsuit believes that these claims are without merit. While each Southern Company entity named in the lawsuit believes the likelihood of loss is remote based on existing case law, it is not possible to predict with certainty whether any Southern Company entity named in the lawsuit will incur any liability in connection with this matter. The ultimate outcome of this matter cannot be determined at this time.

Environmental Remediation

The Southern Company system must comply with environmental laws and regulations that cover the handling and disposal of waste and releases of hazardous substances. Under these various laws and regulations, the Southern Company system could incur substantial costs to clean up properties. The traditional operating companies have each received authority from their respective state PSCs to recover approved environmental compliance costs through regulatory mechanisms. These rates are adjusted annually or as necessary within limits approved by the state PSCs.

Georgia Power's environmental remediation liability as of March 31, 2013 was $18 million. Georgia Power has been designated or identified as a potentially responsible party (PRP) at sites governed by the Georgia Hazardous Site Response Act and/or by the federal Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), including a large site in Brunswick, Georgia on the CERCLA National Priorities List (NPL). The parties have completed the removal of wastes from the Brunswick site as ordered by the EPA. Additional cleanup and claims for recovery of natural resource damages at this site or for the assessment and potential cleanup of other sites on the Georgia Hazardous Sites Inventory and the CERCLA NPL are anticipated.

Georgia Power and numerous other entities have been designated by the EPA as PRPs at the Ward Transformer Superfund site located in Raleigh, North Carolina. In 2011, the EPA issued a Unilateral Administrative Order (UAO) to Georgia Power and 22 other parties, ordering specific remedial action of certain areas at the site. In 2011, Georgia Power filed a response with the EPA stating it has sufficient cause to believe it is not a liable party under CERCLA. The EPA notified Georgia Power in 2011 that it is considering enforcement options against Georgia Power and other non-complying UAO recipients. If the court determines that a respondent failed to comply with the UAO without sufficient cause, the EPA may also seek civil penalties of up to $37,500 per day for the violation and punitive damages of up to three times the costs incurred by the EPA as a result of the party's failure to comply with the UAO.

In addition to the EPA's action at this site, Georgia Power, along with many other parties, was sued in a private action by several existing PRPs for cost recovery related to the removal action. On February 1, 2013, the court granted Georgia Power's summary judgment motion ruling that Georgia Power has no liability in the private action. The plaintiffs may appeal the court's order to the U.S. Court of Appeals for the Fourth Circuit.

The ultimate outcome of these matters will depend upon the success of defenses asserted, the ultimate number of PRPs participating in the cleanup, and numerous other factors and cannot be determined at this time; however, as a result of the regulatory treatment, they are not expected to have a material impact on Southern Company's or Georgia Power's financial statements. See Note 1 to the financial statements of Georgia Power under "Environmental Remediation" in Item 8 of the Form 10-K for additional information regarding the regulatory treatment.

Gulf Power's environmental remediation liability includes estimated costs of environmental remediation projects of approximately $57 million as of March 31, 2013. These estimated costs primarily relate to site closure criteria by the Florida Department of Environmental Protection (FDEP) for potential impacts to soil and groundwater from herbicide applications at Gulf Power substations. The schedule for completion of the remediation projects is subject to FDEP approval. The projects have been approved by the Florida PSC for recovery through Gulf Power's environmental cost recovery clause; therefore, there was no impact on net income as a result of these estimates.

In 2003, the Texas Commission on Environmental Quality (TCEQ) designated Mississippi Power as a PRP at a site in Texas. The site was owned by an electric transformer company that handled Mississippi Power's transformers as well as those of many other entities. The site owner is bankrupt and the State of Texas has entered into an agreement with Mississippi Power and several other utilities to investigate and remediate the site. The feasibility study/presumptive remedy document was originally filed with TCEQ in 2011 and remains under consideration by the agency. Amounts expensed and accrued related to this work were not material. Hundreds of entities have received notices from the TCEQ requesting their participation in the anticipated site remediation. The final impact of this matter on Mississippi Power will depend upon further environmental assessment and the ultimate number of PRPs. The remediation expenses incurred by Mississippi Power are expected to be recovered through the ECO Plan.

The final outcome of these matters cannot be determined at this time. However, based on the currently known conditions at these sites and the nature and extent of activities relating to these sites, management of Southern Company, Georgia Power, Gulf Power, and Mississippi Power does not believe that additional liabilities, if any, at these sites would be material to their respective financial statements.

Nuclear Fuel Disposal Cost Litigation

Acting through the DOE and pursuant to the Nuclear Waste Policy Act of 1982, the U.S. government entered into contracts with Alabama Power and Georgia Power that require the DOE to dispose of spent nuclear fuel and high level radioactive waste generated at Plants Hatch and Farley and Plant Vogtle Units 1 and 2. The DOE failed to timely perform and has yet to commence the performance of its contractual and statutory obligation to dispose of spent nuclear fuel beginning no later than January 31, 1998. Consequently, Alabama Power and Georgia Power have pursued and continue to pursue legal remedies against the U.S. government for its partial breach of contract.

As a result of the first lawsuit, Georgia Power recovered approximately $27 million, based on its ownership interests, and Alabama Power recovered approximately $17 million, representing substantially all of the Southern Company system's direct costs of the expansion of spent nuclear fuel storage facilities at Plants Farley and Hatch and Plant Vogtle Units 1 and 2 from 1998 through 2004.

In 2008, Alabama Power and Georgia Power filed a second lawsuit against the U.S. government for the costs of continuing to store spent nuclear fuel at Plants Farley and Hatch and Plant Vogtle Units 1 and 2. Damages are being sought for the period from January 1, 2005 through December 31, 2010. Damages will continue to accrue until the issue is resolved or storage is provided. No amounts have been recognized in the financial statements as of March 31, 2013 for any potential recoveries from the second lawsuit. The final outcome of these matters cannot be determined at this time; however, no material impact on Southern Company's, Alabama Power's, or Georgia Power's net income is expected.

Sufficient pool storage capacity for spent fuel is available at Plant Vogtle Units 1 and 2 to maintain full-core discharge capability for both units into 2014. Construction of an on-site dry storage facility at Plant Vogtle Units 1 and 2 has begun. The facility is expected to begin operation in sufficient time to maintain full-core discharge capability, with additional on-site dry storage to be added as needed. At Plants Hatch and Farley, on-site dry spent fuel storage facilities are operational and can be expanded to accommodate spent fuel through the expected life of each plant.

FERC Matters

See Note 3 to the financial statements of Mississippi Power under "FERC Matters" in Item 8 of the Form 10-K/A for additional information regarding Mississippi Power's settlement agreement with its wholesale customers for revised rates related to the wholesale Municipal and Rural Associations (MRA) cost-based electric tariff. See Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K, Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A, and "Integrated Coal Gasification Combined Cycle" herein for information regarding Mississippi Power's construction of the Kemper IGCC.

In 2011, Mississippi Power filed a request with the FERC for an increase in wholesale base revenues under the MRA cost-based electric tariff. In March 2012, Mississippi Power entered into a settlement agreement with its wholesale customers which provided that base revenues would increase by approximately $22.6 million over a 12-month period with revised rates effective for services rendered beginning April 1, 2012. In March 2012, the FERC approved a motion to place interim rates into effect beginning in May 2012. In September 2012, Mississippi Power, with its wholesale customers, filed a final settlement agreement with the FERC. In November 2012, the settlement judge certified the settlement agreement to the FERC with the recommendation that it be approved. The FERC has not yet approved the settlement agreement.

On April 1, 2013, Mississippi Power reached a settlement agreement with its wholesale customers and filed a request with the FERC for an additional increase in the MRA cost-based electric tariff. The 2013 settlement agreement provides that base rates under the MRA cost-based electric tariff will increase by approximately $24.2 million over a 12-month period, with revised rates effective for services rendered beginning April 1, 2013. If the 2013 settlement agreement is approved by the FERC, the amount of base rate revenues to be received in 2013 from the agreed upon increase will be approximately $18.0 million.

The ultimate outcome of these matters cannot be determined at this time.

Retail Regulatory Matters

Alabama Power

Rate CNP

See Note 3 to the financial statements of Southern Company and Alabama Power under "Retail Regulatory Matters – Alabama Power – Rate CNP" and "Retail Regulatory Matters – Rate CNP" in Item 8 of the Form 10-K for additional information regarding Alabama Power's recovery of retail costs through Rate Certificated New Plant Power Purchase Agreement (Rate CNP PPA) and Rate Certificated New Plant Environmental (Rate CNP Environmental). Alabama Power's under recovered Rate CNP PPA balance at March 31, 2013 was $7 million as compared to $9 million at December 31, 2012. This under recovered balance at March 31, 2013 is included in deferred under recovered regulatory clause revenues on Southern Company's and Alabama Power's Condensed Balance Sheet herein. For Rate CNP PPA, this classification is based on an estimate, which includes such factors as purchased power capacity and energy demand. A change in any of these factors could have a material impact on the timing of any recovery of the under recovered retail costs. Alabama Power's under recovered Rate CNP Environmental balance at March 31, 2013 was $19 million as compared to $21 million at December 31, 2012. This under recovered balance at March 31, 2013 consists of $11 million in under recovered regulatory clause revenues and $8 million in deferred under recovered regulatory clause revenues on Southern Company's and Alabama Power's Condensed Balance Sheets herein. For Rate CNP Environmental, this classification is based on an estimate, which includes such factors as costs to comply with environmental mandates and energy demand. A change in any of these factors could have a material impact on the timing of any recovery of the under recovered retail costs.

Retail Energy Cost Recovery

See Note 3 to the financial statements of Southern Company and Alabama Power under "Retail Regulatory Matters – Alabama Power – Energy Cost Recovery" and "Retail Regulatory Matters – Energy Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information regarding Alabama Power's energy cost recovery. Alabama Power's over recovered fuel costs at March 31, 2013 totaled $21 million as compared to an under recovered balance of $4 million at December 31, 2012. The over recovered fuel costs at March 31, 2013 are included in other regulatory liabilities, current and the under recovered fuel costs at December 31, 2012 are included in deferred under recovered regulatory clause revenues on Southern Company's and Alabama Power's Condensed Balance Sheets herein. These classifications are based on estimates, which include such factors as weather, generation availability, energy demand, and the price of energy. A change in any of these factors could have a material impact on the timing of any return of the over recovered fuel costs.

Natural Disaster Cost Recovery

See Note 3 to the financial statements of Southern Company and Alabama Power under "Retail Regulatory Matters – Alabama Power – Natural Disaster Reserve" and "Retail Regulatory Matters – Natural Disaster Reserve," respectively, in Item 8 of the Form 10-K for additional information regarding natural disaster cost recovery. At March 31, 2013, the NDR had an accumulated balance of $93 million as compared to $103 million at December 31, 2012, which is included on Southern Company's and Alabama Power's Condensed Balance Sheets herein under other regulatory liabilities, deferred. The decrease in the NDR in the first quarter 2013 is a result of storm activity. The related accruals are reflected as operations and maintenance expenses on Southern Company's and Alabama Power's Condensed Statements of Income herein.

Georgia Power

Fuel Cost Recovery

See Note 3 to the financial statements of Southern Company and Georgia Power under "Retail Regulatory Matters – Georgia Power – Fuel Cost Recovery" and "Retail Regulatory Matters – Fuel Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information.

As of March 31, 2013 and December 31, 2012, Georgia Power's fuel cost over recovery balance totaled $182 million and $230 million, respectively, and is included in current liabilities and other deferred credits and liabilities on Southern Company's and Georgia Power's Condensed Balance Sheets herein.

Fuel cost recovery revenues as recorded on the financial statements are adjusted for differences in actual recoverable fuel costs and amounts billed in current regulated rates. Accordingly, any changes in the billing factor will not have a significant effect on Southern Company's or Georgia Power's revenues or net income, but will affect cash flow.

Integrated Resource Plans

See Note 3 to the financial statements of Southern Company and Georgia Power under "Retail Regulatory Matters – Georgia Power – Integrated Resource Plans" and "Retail Regulatory Matters – Integrated Resource Plans," respectively, in Item 8 of the Form 10-K for additional information.

On April 17, 2013, the Georgia PSC approved the decertification of Plant Bowen Unit 6 (32 MWs), which was retired on April 25, 2013. The Georgia PSC is scheduled to vote on all other aspects of the 2013 IRP in July 2013. The ultimate outcome of this matter cannot be determined at this time.

Separately, on April 22, 2013, Georgia Power executed two PPAs to purchase energy from two wind farms with capacity totaling 250 MWs in southwest Oklahoma that will commence in 2016 and end in 2035. In addition, on April 29, 2013, Georgia Power executed a PPA for the purchase of 50 MWs of capacity and energy that will commence in 2015 and end in 2035. These PPAs are subject to Georgia PSC approval and, if approved, will result in contractual obligations of approximately $13 million in 2015, $47 million in 2016, $48 million in 2017, and $1.3 billion thereafter.

Nuclear Construction

See Note 3 to the financial statements of Southern Company and Georgia Power under "Retail Regulatory Matters – Georgia Power – Nuclear Construction" and "Retail Regulatory Matters – Nuclear Construction," respectively, in Item 8 of the Form 10-K for additional information regarding Georgia Power's construction of Plant Vogtle Units 3 and 4, the eighth Vogtle Construction Monitoring (VCM) report, and pending litigation.

In 2008, Georgia Power, acting for itself and as agent for the Owners, entered into an agreement (Vogtle 3 and 4 Agreement) with the Contractor, pursuant to which the Contractor agreed to design, engineer, procure, construct, and test Plant Vogtle Units 3 and 4. Under the terms of the Vogtle 3 and 4 Agreement, the Owners agreed to pay a purchase price that is subject to certain price escalations and adjustments, including fixed escalation amounts and index-based adjustments, as well as adjustments for change orders, and performance bonuses for early completion and unit performance. Each Owner is severally (and not jointly) liable for its proportionate share, based on its ownership interest, of all amounts owed to the Contractor under the Vogtle 3 and 4 Agreement. Georgia Power's proportionate share is 45.7%. The Vogtle 3 and 4 Agreement provides for liquidated damages upon the Contractor's failure to fulfill the schedule and performance guarantees. The Contractor's liability to the Owners for schedule and performance liquidated damages and warranty claims is subject to a cap.

Certain payment obligations of Westinghouse and Stone & Webster, Inc. under the Vogtle 3 and 4 Agreement are guaranteed by Toshiba Corporation and The Shaw Group, Inc., respectively. In the event of certain credit rating downgrades of any Owner, such Owner will be required to provide a letter of credit or other credit enhancement. The Owners may terminate the Vogtle 3 and 4 Agreement at any time for their convenience, provided that the Owners will be required to pay certain termination costs. The Contractor may terminate the Vogtle 3 and 4 Agreement under certain circumstances, including certain Owner suspension or delays of work, action by a governmental authority to permanently stop work, certain breaches of the Vogtle 3 and 4 Agreement by the Owners, Owner insolvency, and certain other events.

In 2009, the Georgia PSC approved inclusion of the Plant Vogtle Units 3 and 4 related CWIP accounts in rate base, and the State of Georgia enacted the Georgia Nuclear Energy Financing Act, which allows Georgia Power to recover financing costs for nuclear construction projects through annual adjustments to an NCCR tariff by including the related CWIP accounts in rate base during the construction period. The Georgia PSC approved increases to the NCCR tariff of approximately $223 million, $35 million, and $50 million, effective January 1, 2011, 2012, and 2013, respectively. Through the NCCR tariff, Georgia Power is collecting and amortizing to earnings approximately $91 million of financing costs, capitalized in 2009 and 2010, over the five-year period ending December 31, 2015, in addition to the ongoing financing costs. At March 31, 2013, approximately $50 million of these 2009 and 2010 costs remained unamortized in CWIP.

In 2009, the NRC issued an Early Site Permit and Limited Work Authorization which allowed limited work to begin on Plant Vogtle Units 3 and 4. The NRC certified the Westinghouse Design Control Document, as amended (DCD), for the AP1000 nuclear reactor design, effective December 30, 2011, and issued combined construction and operating licenses (COLs) in February 2012. Receipt of the COLs allowed full construction to begin.

In February 2012, separate groups of petitioners filed petitions in the U.S. Court of Appeals for the District of Columbia Circuit seeking judicial review of the NRC's issuance of the COLs and certification of the DCD. These petitions were consolidated in April 2012. Also in April 2012, another group of petitioners filed a motion to stay the effectiveness of the COLs with the U.S. District Court for the District of Columbia. In July 2012, the U.S. Court of Appeals for the District of Columbia Circuit denied the petitioners' motion to stay the effectiveness of the COLs. Georgia Power has intervened in, and is vigorously contesting, these petitions. Additional technical and procedural challenges to the construction and licensing of Plant Vogtle Units 3 and 4, at the federal and state level, are expected as construction proceeds.

Georgia Power is required to file semi-annual VCM reports with the Georgia PSC by February 28 and August 31 each year. On February 19, 2013, the Georgia PSC voted to approve Georgia Power's seventh VCM report, including construction capital costs incurred through June 30, 2012 of approximately $2.0 billion. Georgia Power's eighth VCM report requests approval for an additional $0.2 billion of construction capital costs incurred through December 31, 2012. If the projected certified construction capital costs to be borne by Georgia Power increase by 5% or the projected in-service dates are significantly extended, Georgia Power is required to seek an amendment to the Plant Vogtle Units 3 and 4 certificate from the Georgia PSC. Accordingly, the eighth VCM also requests an amendment to the certificate to increase the estimated in-service capital cost of Plant Vogtle Units 3 and 4 to $4.8 billion and to extend the estimated in-service dates to the fourth quarter 2017 and the fourth quarter 2018 for Plant Vogtle Units 3 and 4, respectively. Associated financing costs during the construction period are estimated to total approximately $2.0 billion. The Georgia PSC is expected to vote on the eighth VCM by October 2013.

In July 2012, the Owners and the Contractor began negotiations regarding the costs associated with design changes to the DCD and the delays in the timing of approval of the DCD and issuance of the COLs, including the assertion by the Contractor that the Owners are responsible for these costs under the terms of the Vogtle 3 and 4 Agreement. The Contractor has claimed that its estimated adjustment attributable to Georgia Power (based on Georgia Power's ownership interest) is approximately $425 million (in 2008 dollars) with respect to these issues. The Contractor also has asserted it is entitled to further schedule extensions. Georgia Power has not agreed with either the proposed cost or schedule adjustments or that the Owners have any responsibility for costs related to these issues. In November 2012, Georgia Power and the other Owners filed suit against the Contractor in the U.S. District Court for the Southern District of Georgia seeking a declaratory judgment that the Owners are not responsible for these costs. Also in November 2012, the Contractor filed suit against Georgia Power and the other Owners in the U.S. District Court for the District of Columbia alleging the Owners are responsible for these costs. While litigation has commenced and Georgia Power intends to vigorously defend its positions, Georgia Power expects negotiations with the Contractor to continue with respect to cost and schedule during which negotiations the parties may reach a mutually acceptable compromise of their positions.

In addition, processes are in place that are designed to assure compliance with the requirements specified in the DCD and the COLs, including rigorous inspections by Southern Nuclear and the NRC that occur throughout construction. During the fourth quarter 2012, certain details of the rebar design for the Plant Vogtle Unit 3 nuclear island were evaluated for consistency with the DCD and deviations were identified. On February 26, 2013 and March 1, 2013, the NRC approved the two license amendment requests required to conform the rebar design details to NRC requirements and, on March 14, 2013, the placement of basemat structural concrete for the nuclear island of Plant Vogtle Unit 3 was completed. Additional license amendment requests are pending before the NRC. Various design and other issues are expected to arise as construction proceeds, which may result in additional license amendments or require other resolution. If any license amendment requests are not resolved in a timely manner, there may be delays in the project schedule that could result in increased costs either to the Owners, the Contractor, or both.

As construction continues, additional delays in the fabrication and assembly of structural modules, the failure of such modules to meet applicable standards, or other issues may further impact project schedule and cost. Additional claims by the Contractor or Georgia Power (on behalf of the Owners) are also likely to arise throughout construction. These claims may be resolved through formal and informal dispute resolution procedures under the Vogtle 3 and 4 Agreement, but also may be resolved through litigation.

The ultimate outcome of these matters cannot be determined at this time.

Gulf Power

Retail Base Rate Case

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Retail Base Rate Case" in Item 8 of the Form 10-K for additional information.

On May 9, 2013, in accordance with the Florida Administrative Code Rules, Gulf Power notified the Florida PSC of Gulf Power's intent to file for an increase in Gulf Power's base rates, not sooner than July 8, 2013 (60 days after the notification) and not later than July 22, 2013. Gulf Power is proposing the projected 12 months ending December 31, 2014 as the test year for the anticipated rate case filing. The proposed test year is a calendar year that corresponds to Gulf Power's fiscal year and largely corresponds with the first fiscal period that new, permanent rates could be in effect. Gulf Power currently estimates that an increase in annual revenues between $75 million and$80 million will be requested. The ultimate outcome of this matter cannot be determined at this time.

Cost Recovery Clauses

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses" in Item 8 of the Form 10-K for additional information.

Fuel Cost Recovery

See Notes 1 and 3 to the financial statements of Gulf Power under "Revenues" and "Retail Regulatory Matters – Cost Recovery Clauses – Fuel Cost Recovery," respectively, in Item 8 of the Form 10-K for additional information.

Over recovered fuel costs at March 31, 2013 totaled $5.1 million compared to $17.1 million at December 31, 2012. These amounts are included in other regulatory liabilities, current on Gulf Power's Condensed Balance Sheets herein.

Purchased Power Capacity Recovery

See Notes 1 and 3 to the financial statements of Gulf Power under "Revenues" and "Retail Regulatory Matters – Cost Recovery Clauses – Purchased Power Capacity Recovery," respectively, in Item 8 of the Form 10-K for additional information.

At March 31, 2013 the over recovered purchased power capacity costs totaled $1.8 million, which is included in other regulatory liabilities, current on Gulf Power's Condensed Balance Sheets herein. At December 31, 2012, the under recovered purchased power capacity costs totaled $0.8 million, which is included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Environmental Cost Recovery

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses – Environmental Cost Recovery" in Item 8 of the Form 10-K for additional information.

Under recovered environmental costs at March 31, 2013 totaled $8.9 million compared to $1.9 million at December 31, 2012. These amounts are included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Energy Conservation Cost Recovery

See Note 3 to the financial statements of Gulf Power under "Retail Regulatory Matters – Cost Recovery Clauses – Energy Conservation Cost Recovery" in Item 8 of the Form 10-K for additional information.

Under recovered energy conservation costs at March 31, 2013 totaled $3.0 million compared to $0.8 million at December 31, 2012. These amounts are included in under recovered regulatory clause revenues on Gulf Power's Condensed Balance Sheets herein.

Mississippi Power

Performance Evaluation Plan

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Performance Evaluation Plan" in Item 8 of the Form 10-K/A for additional information regarding Mississippi Power's base rates.

On January 18, 2013, Mississippi Power filed its annual PEP filing for 2013, which indicated a rate increase of 1.990%, or $15.8 million, annually. On March 4, 2013, Mississippi Power and the Mississippi Public Utilities Staff (MPUS) filed a joint stipulation which revised the annual PEP filing for 2013 to reflect the removal of certain costs related to unresolved matters that are currently under review. On March 5, 2013, the revised annual PEP filing for 2013 was approved by the Mississippi PSC, which resulted in a rate increase of 1.925%, or $15.3 million, annually, with the new rates effective March 19, 2013. Mississippi Power may be entitled to $3.3 million in additional revenues in 2013 as a result of the late implementation of the 2013 PEP rate increase.

On March 15, 2013, Mississippi Power submitted its annual PEP lookback filing for 2012, which indicated a refund due to customers of $4.7 million, which was accrued in retail revenues. On May 1, 2013, the MPUS contested the filing.

The ultimate outcome of these matters cannot be determined at this time.

Environmental Compliance Overview Plan

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Environmental Compliance Overview Plan" in Item 8 of the Form 10-K/A for information on Mississippi Power's annual environmental filing with the Mississippi PSC.

In April 2012, the Mississippi PSC approved Mississippi Power's request for a CPCN to construct a flue gas desulfurization system (scrubber) on Plant Daniel Units 1 and 2. In May 2012, the Sierra Club filed a notice of appeal of the order with the Chancery Court of Harrison County, Mississippi (Chancery Court). These units are jointly owned by Mississippi Power and Gulf Power, with 50% ownership each. The estimated total cost of the project is approximately $660 million, with Mississippi Power's portion being $330 million, excluding AFUDC. The project is scheduled for completion in December 2015. Mississippi Power's portion of the cost is expected to be recovered through the ECO Plan. As of March 31, 2013, total project expenditures were $183.2 million, with Mississippi Power's portion being $91.6 million. The ultimate outcome of this matter cannot be determined at this time.

Fuel Cost Recovery

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Fuel Cost Recovery" in Item 8 of the Form 10-K/A for information regarding Mississippi Power's fuel cost recovery.

On January 18, 2013, in compliance with Mississippi Power's filing requirement, Mississippi Power requested an annual adjustment of the retail fuel cost recovery factor in an amount equal to a decrease of 4.7%, or $35.5 million, of total 2012 retail revenue. The Mississippi PSC approved the retail fuel cost recovery factor on March 5, 2013, with the new rates effective March 19, 2013.

At March 31, 2013, the amount of over recovered retail fuel costs included on Mississippi Power's Condensed Balance Sheets herein was $60.9 million compared to $56.6 million at December 31, 2012. Mississippi Power also has wholesale MRA and Market Based (MB) fuel cost recovery factors. At March 31, 2013, the amount of over recovered wholesale MRA and MB fuel costs included on Mississippi Power's Condensed Balance Sheets herein was $18.1 million and $1.7 million, respectively, compared to $19.0 million and $2.1 million, respectively, at December 31, 2012. In addition, at each of March 31, 2013 and December 31, 2012, the amount of under recovered MRA emissions allowance cost included on Mississippi Power's Condensed Balance Sheets herein was $0.4 million. Mississippi Power's operating revenues are adjusted for differences in actual recoverable fuel cost and amounts billed in accordance with the currently approved cost recovery rate. Accordingly, changes in the billing factor have no significant effect on Mississippi Power's revenues or net income, but will affect cash flow.

Storm Damage Cost Recovery

See Note 3 to the financial statements of Mississippi Power under "Retail Regulatory Matters – Storm Damage Cost Recovery" in Item 8 in the Form 10-K/A for information regarding Mississippi Power's storm damage cost recovery. Mississippi Power maintains a reserve to cover the cost of damage from major storms to its transmission and distribution facilities and generally the cost of uninsured damage to its generation facilities and other property. At March 31, 2013, the balance in the storm reserve was $57.2 million.

Integrated Coal Gasification Combined Cycle

See Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle" in Item 8 of the Form 10-K/A for information regarding Mississippi Power's construction of the Kemper IGCC.

Kemper IGCC Project Approval

In 2010, the Mississippi PSC issued a CPCN authorizing the acquisition, construction, and operation of the Kemper IGCC (2010 MPSC Order) located in Kemper County, Mississippi. The Sierra Club filed an appeal of the Mississippi PSC's issuance of the CPCN and, in March 2012, the Mississippi Supreme Court reversed the decision of the Chancery Court upholding the 2010 MPSC Order and remanded the matter to the Mississippi PSC. The Mississippi Supreme Court concluded that the 2010 MPSC Order did not cite in sufficient detail substantial evidence upon which the Mississippi Supreme Court could determine the basis for the findings of the Mississippi PSC granting the CPCN. In April 2012, the Mississippi PSC issued a detailed order (2012 MPSC Order) confirming the CPCN for the Kemper IGCC, which the Sierra Club appealed to the Chancery Court. In December 2012, the Chancery Court affirmed the 2012 MPSC Order which confirmed the issuance of the CPCN for the Kemper IGCC. On January 8, 2013, the Sierra Club filed an appeal of the Chancery Court's ruling with the Mississippi Supreme Court.

The Kemper IGCC is currently under construction and will utilize an integrated coal gasification combined cycle technology with an output capacity of 582 MWs. The Kemper IGCC will be fueled by locally mined lignite (an abundant, lower heating value coal) from a mine owned by Mississippi Power and situated adjacent to the Kemper IGCC that is scheduled to begin operations in June 2013. In connection with the Kemper IGCC, Mississippi Power also is constructing and plans to operate approximately 61 miles of carbon dioxide (CO₂) pipeline infrastructure. The Kemper IGCC and the CO₂ pipeline are scheduled to be placed in service in May 2014. See Note 3 to the financial statements of Southern Company under "Integrated Coal Gasification Combined Cycle – Lignite Mine and CO₂ Pipeline Facilities" in Item 8 of the Form 10-K and Note 3 to the financial statements of Mississippi Power under "Integrated Coal Gasification Combined Cycle – Lignite Mine and CO₂ Pipeline Facilities" in Item 8 of the Form 10-K/A for additional information regarding the lignite mine and the CO₂ pipeline.

The ultimate outcome of the CPCN challenge cannot be determined at this time.

Kemper IGCC Cost Estimate

The certificated cost estimate of the Kemper IGCC included in the 2012 MPSC Order was $2.4 billion, net of $245 million of grants awarded to the project by the DOE under the Clean Coal Power Initiative Round 2 (DOE Grants), the cost of the lignite mine and equipment, the cost of the CO₂ pipeline facilities, and AFUDC related to the Kemper IGCC. The 2012 MPSC Order approved a construction cost cap of up to $2.88 billion, with recovery of prudently-incurred costs subject to approval by the Mississippi PSC. Exceptions to the $2.88 billion cost cap include the cost of the lignite mine and equipment, the cost of the CO₂ pipeline facilities, AFUDC, and certain general exceptions as contemplated in the Settlement Agreement (described below) and the 2012 MPSC Order, which includes change of law, force majeure, and beneficial capital (which exists when Mississippi Power demonstrates that the purpose and effect of the construction cost increase is to produce efficiencies that will result in a neutral or favorable effect on customers, relative to the original proposal for the CPCN) (Cost Cap Exceptions). Recovery of the Cost Cap Exception amounts remains subject to review and approval by the Mississippi PSC.

On April 23, 2013, Mississippi Power revised its cost estimate for the Kemper IGCC to approximately $3.42 billion, net of the DOE Grants and the Cost Cap Exceptions. Estimated amounts of the Cost Cap Exceptions include $245 million for the lignite mine and equipment, $132 million for the CO₂ pipeline facilities, $324 million of AFUDC, and $102 million of other general exceptions. The revised cost estimate reflects additional cost pressures, including labor costs, piping and other material costs, engineering and support costs, and productivity decreases. Mississippi Power does not intend to seek any joint owner contributions or rate recovery for any costs of the Kemper IGCC that exceed the $2.88 billion cost cap, except for amounts subject to the Cost Cap Exceptions.

As a result of an evaluation of the revised cost estimate, Mississippi Power determined that a portion of this $540 million estimated probable loss related to the period ended December 31, 2012. Accordingly, Mississippi Power restated its 2012 financial statements to reflect a pre-tax charge to income for this estimated probable loss of $78.0 million ($48.2 million after tax) in 2012, with the additional $462.0 million ($285.3 million after tax) reflected in the first quarter 2013. Southern Company evaluated the portion of the estimated probable loss related to 2012 and concluded it was not material to Southern Company. Therefore, Southern Company reflected the total pre-tax charge to income for this estimated probable loss of $540.0 million ($333.5 million after tax) in the first quarter 2013.

Southern Company's and Mississippi Power's analysis of the estimated cost to complete the Kemper IGCC will be ongoing throughout the construction period. It is possible that Mississippi Power could experience further cost increases and/or schedule delays with respect to the Kemper IGCC as a result of factors including, but not limited to, costs and productivity of labor, adverse weather conditions, shortages and inconsistent quality of equipment, materials, and labor, contractor or supplier delay or non-performance under construction or other agreements, delays associated with start-up activities, and/or unforeseen engineering problems. In subsequent periods, any changes in the estimated costs to complete construction of the Kemper IGCC subject to the $2.88 billion cost cap will be reflected in Southern Company's and Mississippi Power's statements of income and these changes could be material.

As of March 31, 2013, Mississippi Power had spent a total of $2.88 billion on the Kemper IGCC, excluding the estimated probable loss. These costs include$2.41 billion for the portion of the Kemper IGCC subject to the construction cost cap, $188.9 million for the lignite mine and equipment, $84.4 million for the CO₂ pipeline facilities, $156.4 million of AFUDC, and $43.1 million of other costs, including certain general exceptions and certain regulatory assets. Of this total, $2.29 billion was included in CWIP (which is net of the DOE Grants and an estimated probable loss of $540 million), $43.4 million in other regulatory assets, $3.8 million in other deferred charges and assets on Southern Company's and Mississippi Power's Condensed Balance Sheets herein, and $1.0 million was previously expensed. Consistent with the treatment of non-capital costs incurred during the pre-construction period, the Mississippi PSC granted Mississippi Power the authority to defer all non-capital Kemper IGCC-related costs to a regulatory asset during the construction period. This includes deferred costs associated with the generation resource planning, evaluation, and screening activities. The amortization period for the regulatory asset will be determined by the Mississippi PSC at a later date. In addition, Mississippi Power is authorized to accrue carrying costs on the unamortized balance of such regulatory assets at a rate and in a manner to be determined by the Mississippi PSC in future cost recovery mechanism proceedings.

The ultimate outcome of these matters cannot be determined at this time.

Rate Recovery of Kemper IGCC Costs

See "FERC Matters" for additional information regarding Mississippi Power's MRA cost-based tariff relating to recovery of a portion of the Kemper IGCC costs from Mississippi Power's wholesale customers. Rate recovery of the retail portion of the Kemper IGCC is subject to the jurisdiction of the Mississippi PSC. See "Baseload Act" herein for additional information.

On January 24, 2013, Mississippi Power entered into a settlement agreement (Settlement Agreement) with the Mississippi PSC that, among other things, establishes the process for resolving matters regarding cost recovery related to the Kemper IGCC. Under the Settlement Agreement, Mississippi Power agreed to limit the portion of prudently-incurred Kemper IGCC costs to be included in retail rate base to the $2.4 billion certificated cost estimate, plus the Cost Cap Exceptions as well as any other costs permitted or determined to be excluded from the $2.88 billion cost cap by the Mississippi PSC. Mississippi Power intends to finance (1) prudently-incurred costs in excess of the certificated cost estimate and up to the $2.88 billion cost cap, net of the DOE Grants and the Cost Cap Exceptions, (2) the accrued AFUDC, and (3) exceptions not provided for in the Seven-Year Rate Plan (discussed below) through securitization as provided in State of Mississippi legislation. The rate recovery necessary to recover the annual costs of securitization is expected to be filed and become effective after the Kemper IGCC is placed in service and following completion of the Mississippi PSC's final prudence review of costs for the Kemper IGCC.

Under the terms of the Settlement Agreement, Mississippi Power and the Mississippi PSC agreed to follow certain regulatory procedures and schedules for resolving the cost recovery matters related to the Kemper IGCC. These procedures and schedules include the following: (1) Mississippi Power's filing on January 25, 2013 of a new request to increase retail rates in 2013 by $172 million annually, based on projected investment for 2013, to be recorded to a regulatory liability to be used to mitigate rate impacts when the Kemper IGCC is placed in service; (2) the Mississippi PSC's decision on that matter on March 5, 2013 as described below; (3) Mississippi Power's collaboration with the MPUS to file with the Mississippi PSC within three months of the Settlement Agreement a rate recovery plan for the Kemper IGCC for the first seven years of its operation, along with a proposed revenue requirement under such plan for 2014 through 2020 (Seven-Year Rate Plan) (which was made on February 26, 2013 and updated on March 22, 2013 as described below); (4) the Mississippi PSC's decision on the Seven-Year Rate Plan within four months of that filing (which is now expected to occur in the fall of 2013); (5) Mississippi Power's agreement to limit the portion of prudently-incurred Kemper IGCC costs to be included in rate base to the $2.4 billion certificated cost estimate, plus the Cost Cap Exceptions, excluding AFUDC, provided that this limitation will not prevent Mississippi Power from securing alternate financing to recover any prudently-incurred Kemper IGCC costs, including plant costs above the $2.4 billion certificated cost estimate and AFUDC, not otherwise recovered in any Mississippi PSC rate proceeding contemplated by the Settlement Agreement; and (6) the Mississippi PSC's completion of its prudence review of the Kemper IGCC costs incurred through 2012 within six months of the Settlement Agreement, an additional prudence review upon considering the Seven-Year Rate Plan for costs incurred through the most recent reporting period, and a final prudence review of the remaining project costs within six months of the Kemper IGCC's in-service date. The Settlement Agreement provides that Mississippi Power may terminate the agreement if certain conditions are not met, if Mississippi Power is unable to secure alternate financing for any prudently-incurred Kemper IGCC costs not otherwise recovered in any Mississippi PSC rate proceeding contemplated by the Settlement Agreement, or if the Mississippi PSC fails to comply with the requirements of the Settlement Agreement. Legislation to authorize a multi-year rate plan and legislation to provide for alternate financing through securitization was enacted into law on February 26, 2013. Mississippi Power is currently working with the Mississippi PSC and the MPUS to implement the procedural schedules set forth in the Settlement Agreement and variations to the schedule are likely.

On March 5, 2013, the Mississippi PSC issued an order (2013 Kemper IGCC Order) approving a 15% increase in retail rates effective on March 19, 2013, and an additional 3% increase in retail rates effective January 1, 2014, which collectively are designed to collect $156 million annually beginning in 2014. All amounts collected through April 2014, which are expected to total $126 million, will be recorded as a regulatory liability to be used to mitigate rate impacts beginning in May 2014 when the Kemper IGCC is expected to be placed in service. On March 21, 2013, a legal challenge to the 2013 Kemper IGCC Order was filed with the Mississippi Supreme Court.

Because the 2013 Kemper IGCC Order did not provide for the inclusion of CWIP in rate base as permitted by the Baseload Act described below, Mississippi Power continues to record AFUDC on the Kemper IGCC during the construction period. Mississippi Power will not record AFUDC on any additional costs of the Kemper IGCC that exceed the $2.88 billion cost cap, except for Cost Cap Exception amounts. Mississippi Power's rate plans filed pursuant to the Settlement Agreement contemplate the continued accrual of AFUDC through the May 2014 expected in-service date.

On March 22, 2013, Mississippi Power, in compliance with the 2013 Kemper IGCC Order, filed a revision to the Seven-Year Rate Plan with the Mississippi PSC for the Kemper IGCC for 2014 through 2020, the first seven years of operation of the Kemper IGCC. The Seven-Year Rate Plan, which contemplates Mississippi Power's sale of a 15% undivided ownership interest in the Kemper IGCC, proposes recovery of an annual revenue requirement of approximately $156 million of Kemper IGCC-related operational costs and rate base amounts, including plant costs equal to the $2.4 billion certificated cost estimate. The 2013 Kemper IGCC Order, which increased rates beginning on March 19, 2013, is integral to the Seven-Year Rate Plan, which contemplates amortization of the April 2014 regulatory liability balance to be used to mitigate rate impacts from the expected in-service date of May 2014 through 2020, based on a fixed amortization schedule that requires approval by the Mississippi PSC. Under the Seven-Year Rate Plan filing, Mississippi Power proposes annual rate recovery to remain the same from 2014 through 2020. While it is the intent of Mississippi Power for the actual revenue requirement to equal the proposed revenue requirement, Mississippi Power proposes that the annual differences through 2020 for certain items contemplated in the Seven-Year Rate Plan will be deferred, subject to accrual of carrying costs, and the cumulative balance will be reviewed at the end of the term of the Settlement Agreement by the Mississippi PSC to determine the disposition of any potential remaining deferred balance.

The revenue requirements set forth in Mississippi Power's Seven-Year Rate Plan described above assume, among other things, the Kemper IGCC will be placed in service in May 2014, the sale of a 15% undivided interest in the Kemper IGCC to SMEPA will be completed as described herein, Mississippi Power's receipt of the benefits relating to tax credits described herein, and recovery of the Cost Cap Exceptions described herein.

The ultimate outcome of these matters, including the determinations of prudency and the specific manner of recovery of costs relating to the Kemper IGCC, is subject to further regulatory actions and cannot be determined at this time.

Proposed Sale of Undivided Interest to SMEPA

In 2010, Mississippi Power and SMEPA entered into an asset purchase agreement whereby SMEPA agreed to purchase a 17.5% undivided interest in the Kemper IGCC. In February 2012, the Mississippi PSC approved the sale and transfer of 17.5% of the Kemper IGCC to SMEPA. In June 2012, Mississippi Power and SMEPA signed an amendment to the asset purchase agreement whereby SMEPA extended its option to purchase until December 31, 2012, and reduced its purchase commitment percentage from a 17.5% to a 15% undivided interest in the Kemper IGCC, subject to approval by the Mississippi PSC. On December 31, 2012, Mississippi Power and SMEPA agreed to extend SMEPA's option to purchase through December 31, 2013.

The closing of this transaction is conditioned upon execution of a joint ownership and operating agreement, receipt of all construction permits, appropriate regulatory approvals, financing, and other conditions. In September 2012, SMEPA received a conditional loan commitment from Rural Utilities Service to provide funding for SMEPA's undivided interest in the Kemper IGCC.

In March 2012, Mississippi Power received a $150 million interest-bearing refundable deposit from SMEPA to be applied to the purchase. While the expectation is that the amount will be applied to the purchase price at closing, Mississippi Power would be required to refund the deposit upon the termination of the asset purchase agreement, within 60 days of a request by SMEPA for a full or partial refund, or within 15 days at SMEPA's discretion in the event that Mississippi Power is assigned a senior unsecured credit rating of BBB+ or lower by S&P or Baa1 or lower by Moody's or ceases to be rated by either of these rating agencies. Given the interest-bearing nature of the deposit and SMEPA's ability to request a refund, the deposit has been presented as a current liability in Southern Company's and Mississippi Power's Condensed Balance Sheets herein and as financing proceeds in Southern Company's and Mississippi Power's Condensed Statements of Cash Flows herein.

The ultimate outcome of these matters cannot be determined at this time.

Baseload Act

In 2008, the Baseload Act was signed by the Governor of Mississippi and is designed to enhance the Mississippi PSC's authority to facilitate development and construction of base load generation in the State of Mississippi. The Baseload Act authorizes, but does not require, the Mississippi PSC to adopt a cost recovery mechanism that includes in retail base rates, prior to and during construction, all or a portion of the prudently-incurred pre-construction and construction costs incurred by a utility in constructing a base load electric generating plant. Prior to the passage of the Baseload Act, such costs would traditionally be recovered only after the plant was placed in service. The Baseload Act also provides for periodic prudence reviews by the Mississippi PSC and prohibits the cancellation of any such generating plant without the approval of the Mississippi PSC. In the event of cancellation of the construction of the plant without approval of the Mississippi PSC, the Baseload Act authorizes the Mississippi PSC to make a public interest determination as to whether and to what extent the utility will be afforded rate recovery for costs incurred in connection with such cancelled generating plant. There are legal challenges to the constitutionality of the Baseload Act currently pending before the Mississippi Supreme Court. The ultimate outcome of the legal challenges to this legislation cannot be determined at this time. See "Rate Recovery of Kemper IGCC Costs" herein for additional information.

Tax Incentives

The IRS has allocated $133 million (Phase I) and $279 million (Phase II) of Internal Revenue Code Section 48A tax credits to Mississippi Power in connection with the Kemper IGCC. Mississippi Power's utilization of Phase I and Phase II credits is dependent upon meeting the IRS certification requirements, including an in-service date no later than May 11, 2014 for the Phase I credits and April 19, 2016 for the Phase II credits. In order to remain eligible for the Phase II credits, Mississippi Power plans to capture and sequester (via enhanced oil recovery) at least 65%of the CO₂ produced by the Kemper IGCC during operations in accordance with the rules for Section 48A investment tax credits. Through March 31, 2013, Mississippi Power had received or accrued tax benefits totaling $412 million for these tax credits, which will be amortized as a reduction to depreciation and amortization over the life of the Kemper IGCC. As a result of bonus tax depreciation on certain assets placed, or to be placed, in service in 2012 and 2013, and the subsequent reduction in federal taxable income, Mississippi Power estimates that it will not be able to utilize $178.8 million of these tax credits until after March 31, 2014. IRS guidelines allow these unused tax credits to be carried forward for 20 years from the date received, if not utilized before then. In October 2012, Mississippi Power filed an application with the DOE for certification of the Kemper IGCC for additional tax credits under the Internal Revenue Code Section 48A (Phase III).

A portion of the tax credits realized by Mississippi Power may be subject to recapture upon successful completion of SMEPA's purchase of an undivided interest in the Kemper IGCC as described above. In addition, all or a portion of the tax credits will be subject to recapture if Mississippi Power fails to satisfy the in-service date requirements and CO₂ capture requirements described above.

On January 2, 2013, the American Taxpayer Relief Act of 2012 (ATRA) was signed into law. The ATRA retroactively extended several tax credits through 2013 and 50% bonus depreciation for property to be placed in service in 2013 (and for certain long-term production-period projects to be placed in service in 2014), which is expected to apply to the Kemper IGCC.

The ultimate outcome of these matters cannot be determined at this time.

Other Matters

On April 4, 2013, an explosion occurred at Plant Bowen Unit 2 that resulted in substantial damage to the Plant Bowen Unit 2 generator, Plant Bowen's Units 1 and 2 control room and surrounding areas, as well as Plant Bowen's switchyard. The extent of the damage sustained by Plant Bowen Unit 1 is unknown. Plant Bowen Units 1 and 2 (approximately 1,400 MWs) remain offline, pending assessment of the damage and completion of repairs. Georgia Power expects that any material repair costs related to the damage will be covered by property insurance. The ultimate outcome of this matter cannot be determined at this time.

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Effective Tax Rate and Unrecognized Tax Benefits (Tables)

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Changes for unrecognized tax benefits

Changes during 2013 for unrecognized tax benefits were as follows:

	Southern Company		Alabama Power		Georgia Power		Gulf Power		Mississippi Power		Southern Power
	(in millions)
Unrecognized tax benefits as of December 31, 2012	$	70	$	31	$	23	$	5	$	6	$	3
Tax positions from current periods	3		1		1		—		—		—
Balance as of March 31, 2013	$	73	$	32	$	24	$	5	$	6	$	3

Impact on effective tax rate

The impact on the effective tax rate, if recognized, was as follows:

	As of March 31, 2013			As of December 31, 2012
		Southern Company
	(in millions)
Tax positions impacting the effective tax rate		$	5	$	5
Tax positions not impacting the effective tax rate		68		65
Balance of unrecognized tax benefits		$	73	$	70

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Retirement Benefits (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Pension Plans [Member]
Pension Plans and Postretirement Plans
Service cost	$ 58	$ 50
Interest cost	97	98
Expected return on plan assets	(151)	(145)
Amortization:
Prior service costs	7	7
Net (gain)/loss	(50)	(24)
Net cost	61	34
Pension Plans [Member] | Alabama Power [Member]
Pension Plans and Postretirement Plans
Service cost	13	11
Interest cost	23	23
Expected return on plan assets	(39)	(40)
Amortization:
Prior service costs	2	2
Net (gain)/loss	(13)	(6)
Net cost	12	2
Pension Plans [Member] | Georgia Power [Member]
Pension Plans and Postretirement Plans
Service cost	17	15
Interest cost	34	35
Expected return on plan assets	(53)	(55)
Amortization:
Prior service costs	3	3
Net (gain)/loss	(19)	(8)
Net cost	20	6
Pension Plans [Member] | Gulf Power [Member]
Pension Plans and Postretirement Plans
Service cost	3	2
Interest cost	4	4
Expected return on plan assets	(6)	(6)
Amortization:
Prior service costs	0	0
Net (gain)/loss	(2)	(1)
Net cost	3	1
Pension Plans [Member] | Mississippi Power [Member]
Pension Plans and Postretirement Plans
Service cost	3	2
Interest cost	5	5
Expected return on plan assets	(7)	(6)
Amortization:
Prior service costs	0	0
Net (gain)/loss	(2)	(1)
Net cost	3	2
Other Postretirement Benefits [Member]
Pension Plans and Postretirement Plans
Service cost	6	5
Interest cost	19	21
Expected return on plan assets	(14)	(15)
Amortization:
Transition obligation	1	2
Prior service costs	1	1
Net (gain)/loss	(3)	(2)
Net cost	16	16
Other Postretirement Benefits [Member] | Alabama Power [Member]
Pension Plans and Postretirement Plans
Service cost	2	1
Interest cost	5	5
Expected return on plan assets	(6)	(6)
Amortization:
Transition obligation	0	1
Prior service costs	1	1
Net (gain)/loss	0	0
Net cost	2	2
Other Postretirement Benefits [Member] | Georgia Power [Member]
Pension Plans and Postretirement Plans
Service cost	2	1
Interest cost	8	9
Expected return on plan assets	(6)	(7)
Amortization:
Transition obligation	1	2
Prior service costs	0	0
Net (gain)/loss	(2)	(1)
Net cost	7	6
Other Postretirement Benefits [Member] | Gulf Power [Member]
Pension Plans and Postretirement Plans
Service cost	0	0
Interest cost	1	1
Expected return on plan assets	0	0
Amortization:
Transition obligation	0	0
Prior service costs	0	0
Net (gain)/loss	0	0
Net cost	1	1
Other Postretirement Benefits [Member] | Mississippi Power [Member]
Pension Plans and Postretirement Plans
Service cost	0	0
Interest cost	1	1
Expected return on plan assets	0	0
Amortization:
Transition obligation	0	0
Prior service costs	0	0
Net (gain)/loss	0	0
Net cost	$ 1	$ 1

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Fair Value Measurements (Policies)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Valuation Methodologies

Valuation Methodologies

The energy-related derivatives primarily consist of over-the-counter financial products for natural gas and physical power products including, from time to time, basis swaps. These are standard products used within the energy industry and are valued using the market approach. The inputs used are mainly from observable market sources, such as forward natural gas prices, power prices, implied volatility, and LIBOR interest rates. Interest rate and foreign currency derivatives are also standard over-the-counter financial products valued using the market approach. Inputs for interest rate derivatives include LIBOR interest rates, interest rate futures contracts, and occasionally implied volatility of interest rate options. Inputs for foreign currency derivatives are from observable market sources. See Note (H) herein for additional information on how these derivatives are used.

"Other investments" include investments in funds that are valued using the market approach and income approach. Securities that are traded in the open market are valued at the closing price on their principal exchange as of the measurement date. Discounts are applied in accordance with GAAP when certain trading restrictions exist. For investments that are not traded in the open market, the price paid will have been determined based on market factors including comparable multiples and the expectations regarding cash flows and business plan execution. As the investments mature or if market conditions change materially, further analysis of the fair market value of the investment is performed. This analysis is typically based on a metric, such as multiple of earnings, revenues, earnings before interest and income taxes, or earnings adjusted for certain cash changes. These multiples are based on comparable multiples for publicly traded companies or other relevant prior transactions.

For fair value measurements of investments within the nuclear decommissioning trusts and rabbi trust funds, specifically the fixed income assets using significant other observable inputs and unobservable inputs, the primary valuation technique used is the market approach. External pricing vendors are designated for each of the asset classes in the nuclear decommissioning trusts and rabbi trust funds with each security discriminately assigned a primary pricing source, based on similar characteristics.

A market price secured from the primary source vendor is then evaluated by management in its valuation of the assets within the trusts. As a general approach, market pricing vendors gather market data (including indices and market research reports) and integrate relative credit information, observed market movements, and sector news into proprietary pricing models, pricing systems, and mathematical tools. Dealer quotes and other market information including live trading levels and pricing analysts' judgment are also obtained when available.