10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2018

or

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the transition period from _______to_______

	Exact name of registrant as specified in its charter,
Commission	state of incorporation, address of principal	I.R.S. Employer
File Number	executive offices and telephone number	Identification Number
001-38515	EVERGY, INC.	82-2733395
	(a Missouri corporation)
	1200 Main Street
	Kansas City, Missouri  64105
	(816) 556-2200
001-03523	WESTAR ENERGY, INC.	48-0290150
	(a Kansas corporation)
	818 South Kansas Avenue
	Topeka, Kansas 66612
	(785) 575-6300
000-51873	KANSAS CITY POWER & LIGHT COMPANY	44-0308720
	(a Missouri corporation)
	1200 Main Street
	Kansas City, Missouri  64105
	(816) 556-2200

Indicate by check mark whether the registrant (1) has 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 registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Evergy, Inc.			Yes	☒	No	☐
Westar Energy, Inc.			Yes	☒	No	☐
Kansas City Power & Light Company			Yes	☒	No	☐
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Evergy, Inc.			Yes	☒	No	☐
Westar Energy, Inc.			Yes	☒	No	☐
Kansas City Power & Light Company			Yes	☒	No	☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
	Large Accelerated Filer		Accelerated Filer		Non-accelerated Filer		Smaller Reporting Company		Emerging Growth Company
Evergy, Inc.		☒		☐		☐		☐		☐
Westar Energy, Inc.		☒		☐		☐		☐		☐
Kansas City Power & Light Company		☐		☐		☒		☐		☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards pursuant to Section 13(a) of the Exchange Act.
Evergy, Inc.		☐
Westar Energy, Inc.		☐
Kansas City Power & Light Company		☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Evergy, Inc.			Yes	☐	No	☒
Westar Energy, Inc.			Yes	☐	No	☒
Kansas City Power & Light Company			Yes	☐	No	☒
On October 31, 2018, Evergy, Inc. had 263,455,083 shares of common stock outstanding.  On October 31, 2018, Kansas City Power & Light Company and Westar Energy, Inc. each had one share of common stock outstanding and held by Evergy, Inc.
Westar Energy, Inc. and Kansas City Power & Light Company meet the conditions set forth in General Instruction (H)(1)(a) and (b) of Form 10-Q and are therefore filing this Form 10-Q with the reduced disclosure format.

This combined Quarterly Report on Form 10-Q is provided by the following registrants: Evergy, Inc. (Evergy), Westar Energy, Inc. (Westar Energy) and Kansas City Power & Light Company (KCP&L) (collectively, the Evergy Companies). Information relating to any individual registrant is filed by such registrant solely on its own behalf. Each registrant makes no representation as to information relating exclusively to the other registrants.

This report should be read in its entirety.  No one section of the report deals with all aspects of the subject matter.  It should be read in conjunction with the Westar Energy First Quarter 2018 Quarterly Report on Form 10-Q, the Great Plains Energy Incorporated (Great Plains Energy) and KCP&L combined First Quarter 2018 Quarterly Report on Form 10-Q, the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K.

TABLE OF CONTENTS
			Page Number
Cautionary Statements Regarding Certain Forward-Looking Information			4
Glossary of Terms			5
Part I - Financial Information
Item 1.	Financial Statements
	Evergy, Inc.
	Unaudited Consolidated Balance Sheets		7
	Unaudited Consolidated Statements of Income		9
	Unaudited Consolidated Statements of Cash Flows		10
	Unaudited Consolidated Statements of Changes in Equity		11
	Westar Energy, Inc.
	Unaudited Consolidated Balance Sheets		12
	Unaudited Consolidated Statements of Income		14
	Unaudited Consolidated Statements of Cash Flows		15
	Unaudited Consolidated Statements of Changes in Equity		16
	Kansas City Power & Light Company
	Unaudited Consolidated Balance Sheets		17
	Unaudited Consolidated Statements of Comprehensive Income		19
	Unaudited Consolidated Statements of Cash Flows		20
	Unaudited Consolidated Statements of Changes in Equity		21
	Combined Notes to Unaudited Consolidated Financial Statements for Evergy, Inc., Westar Energy, Inc. and Kansas City Power & Light Company		22
	Note 1:	Organization and Basis of Presentation	22
	Note 2:	Merger of Great Plains Energy and Westar Energy	30
	Note 3:	Revenue	35
	Note 4:	Receivables	37
	Note 5:	Rate Matters and Regulation	38
	Note 6:	Asset Retirement Obligations	40
	Note 7:	Pension Plans and Other Employee Benefits	40
	Note 8:	Equity Compensation	42
	Note 9:	Short-Term Borrowings and Short-Term Bank Lines of Credit	46
	Note 10:	Long-Term Debt	46
	Note 11:	Fair Value Measurements	47
	Note 12:	Commitments and Contingencies	52
	Note 13:	Guarantees	56
	Note 14:	Related Party Transactions and Relationships	56
	Note 15:	Shareholders' Equity	57
	Note 16:	Variable Interest Entities	59
	Note 17:	Taxes	60
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations		64
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		85
Item 4.	Controls and Procedures		86
Part II - Other Information
Item 1.	Legal Proceedings		87
Item 1A.	Risk Factors		87
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		88
Item 3.	Defaults Upon Senior Securities		88
Item 4.	Mine Safety Disclosures		88
Item 5.	Other Information		88
Item 6.	Exhibits		89
Signatures			91

3

CAUTIONARY STATEMENTS REGARDING CERTAIN FORWARD-LOOKING INFORMATION

Statements made in this report that are not based on historical facts are forward-looking, may involve risks and uncertainties, and are intended to be as of the date when made. Forward-looking statements include, but are not limited to, statements relating to the merger of Great Plains Energy and Westar Energy that resulted in the creation of Evergy, including those that relate to the expected financial and operational benefits of the merger to the companies and their shareholders (including cost savings, operational efficiencies and the impact of the merger on earnings per share), cost estimates of capital projects, dividend growth, share repurchases, balance sheet and credit ratings, rebates to customers, employee issues and other matters affecting future operations.

In connection with the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, the Evergy Companies are providing a number of important factors that could cause actual results to differ materially from the provided forward-looking information. These important factors include: future economic conditions in regional, national and international markets and their effects on sales, prices and costs; prices and availability of electricity in regional and national wholesale markets; market perception of the energy industry, Evergy, Westar Energy and KCP&L; changes in business strategy, operations or development plans; the outcome of contract negotiations for goods and services; effects of current or proposed state and federal legislative and regulatory actions or developments, including, but not limited to, deregulation, re-regulation and restructuring of the electric utility industry; decisions of regulators regarding rates that Westar Energy and KCP&L (or other regulated subsidiaries of Evergy) can charge for electricity; adverse changes in applicable laws, regulations, rules, principles or practices governing tax, accounting and environmental matters including, but not limited to, air and water quality; financial market conditions and performance including, but not limited to, changes in interest rates and credit spreads and in availability and cost of capital and the effects on derivatives and hedges, nuclear decommissioning trust and pension plan assets and costs; impairments of long-lived assets or goodwill; credit ratings; inflation rates; effectiveness of risk management policies and procedures and the ability of counterparties to satisfy their contractual commitments; impact of terrorist acts, including, but not limited to, cyber terrorism; ability to carry out marketing and sales plans; weather conditions including, but not limited to, weather-related damage and their effects on sales, prices and costs; cost, availability, quality and deliverability of fuel; the inherent uncertainties in estimating the effects of weather, economic conditions and other factors on customer consumption and financial results; ability to achieve generation goals and the occurrence and duration of planned and unplanned generation outages; delays in the anticipated in-service dates and cost increases of generation, transmission, distribution or other projects; Evergy's ability to successfully manage its transmission joint ventures; the inherent risks associated with the ownership and operation of a nuclear facility including, but not limited to, environmental, health, safety, regulatory and financial risks; workforce risks, including, but not limited to, increased costs of retirement, health care and other benefits; the possibility that the expected value creation from the merger will not be realized, or will not be realized within the expected time period; difficulties related to the integration of the two companies; disruption from the merger making it more difficult to maintain relationships with customers, employees, regulators or suppliers; the diversion of management time; and other risks and uncertainties.

This list of factors is not all-inclusive because it is not possible to predict all factors. Part II, Item 1A, Risk Factors included in this report, together with the risk factors included in the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K under Part I, Item 1A, should be carefully read for further understanding of potential risks for the Evergy Companies. Other sections of this report and other periodic reports filed by the Evergy Companies with the Securities and Exchange Commission (SEC) should also be read for more information regarding risk factors. Each forward-looking statement speaks only as of the date of the particular statement. The Evergy Companies undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

4

GLOSSARY OF TERMS

The following is a glossary of frequently used abbreviations or acronyms that are found throughout this report.

Abbreviation or Acronym	Definition
AEP	American Electric Power Company, Inc.
AFUDC	Allowance for Funds Used During Construction
Amended Merger Agreement	Amended and Restated Agreement and Plan of Merger, dated as of July 9, 2017, by and among Great Plains Energy, Westar Energy, Monarch Energy Holding, Inc. and King Energy, Inc.
AMT	Alternative Minimum Tax
ARO	Asset Retirement Obligation
ASC	Accounting Standards Codification
ASU	Accounting Standards Update
CCRs	Coal combustion residuals
Clean Air Act	Clean Air Act Amendments of 1990
CO2	Carbon dioxide
COLI	Corporate-owned life insurance
CWA	Clean Water Act
DOE	Department of Energy
EIRR	Environmental Improvement Revenue Refunding
EPA	Environmental Protection Agency
EPS	Earnings per common share
ERISA	Employee Retirement Income Security Act of 1974, as amended
ERSP	Earnings Review and Sharing Plan
Evergy	Evergy, Inc. and its consolidated subsidiaries
Evergy Board	Evergy Board of Directors
Evergy Companies	Evergy, Westar Energy, and KCP&L, collectively, which are individual registrants within the Evergy consolidated group
Exchange Act	The Securities Exchange Act of 1934, as amended
FASB	Financial Accounting Standards Board
FERC	The Federal Energy Regulatory Commission
FMBs	First mortgage bonds
GAAP	Generally Accepted Accounting Principles
GHG	Greenhouse gas
GMO	KCP&L Greater Missouri Operations Company, a wholly-owned subsidiary of Evergy
GPETHC	GPE Transmission Holding Company LLC, a wholly-owned subsidiary of Evergy
Great Plains Energy	Great Plains Energy Incorporated
KCC	State Corporation Commission of the State of Kansas
KCP&L	Kansas City Power & Light Company, a wholly-owned subsidiary of Evergy, and its consolidated subsidiaries
KCP&L Receivables Company	Kansas City Power & Light Receivables Company, a wholly-owned subsidiary of KCP&L
KDHE	Kansas Department of Health & Environment
KGE	Kansas Gas and Electric Company, a wholly-owned subsidiary of Westar Energy
King Energy	King Energy, Inc., a wholly-owned subsidiary of Evergy
kWh	Kilowatt hour

5

Abbreviation or Acronym	Definition
MEEIA	Missouri Energy Efficiency Investment Act
MMBtu	Millions of British thermal units
Monarch Energy	Monarch Energy Holding, Inc.
MPSC	Public Service Commission of the State of Missouri
MW	Megawatt
MWh	Megawatt hour
NAAQs	National Ambient Air Quality Standards
NAV	Net Asset Value
NO2	Nitrogen dioxide
NRC	Nuclear Regulatory Commission
PISA	Plant-in service accounting
PM	Particulate matter
Prairie Wind	Prairie Wind Transmission, LLC, 50% owned by Westar Energy
RSU	Restricted share unit
RTO	Regional transmission organization
SEC	Securities and Exchange Commission
SO2	Sulfur dioxide
SPP	Southwest Power Pool, Inc.
TFR	Transmission formula rate
Transource	Transource Energy, LLC and its subsidiaries, 13.5% owned by GPETHC
VIE	Variable interest entity
WCNOC	Wolf Creek Nuclear Operating Corporation
Westar Energy	Westar Energy, Inc., a wholly-owned subsidiary of Evergy, and its consolidated subsidiaries
Wolf Creek	Wolf Creek Generating Station
WOTUS	Waters of the United States

6

PART I

ITEM 1. FINANCIAL STATEMENTS

EVERGY, INC.
Consolidated Balance Sheets
(Unaudited)
	September 30			December 31
	2018			2017
ASSETS	(millions, except share amounts)
CURRENT ASSETS:
Cash and cash equivalents		$	679.7		$	3.4
Receivables, net		496.5			290.7
Accounts receivable pledged as collateral		195.0			—
Fuel inventory and supplies		520.9			293.6
Income taxes receivable		20.8			—
Regulatory assets		332.5			99.5
Prepaid expenses and other assets		73.6			39.8
Total Current Assets		2,319.0			727.0
PROPERTY, PLANT AND EQUIPMENT, NET		18,836.0			9,553.8
PROPERTY, PLANT AND EQUIPMENT OF VARIABLE INTEREST ENTITIES, NET		170.9			176.3
OTHER ASSETS:
Regulatory assets		1,518.1			685.4
Nuclear decommissioning trust fund		518.0			237.1
Goodwill		2,333.5			—
Other		379.7			244.8
Total Other Assets		4,749.3			1,167.3
TOTAL ASSETS		$	26,075.2		$	11,624.4

The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

7

EVERGY, INC.
Consolidated Balance Sheets
(Unaudited)
	September 30				December 31
	2018				2017
LIABILITIES AND EQUITY	(millions, except share amounts)
CURRENT LIABILITIES:
Current maturities of long-term debt		$	709.6			$	—
Current maturities of long-term debt of variable interest entities		30.3				28.5
Notes payable and commercial paper		675.9				275.7
Collateralized note payable		195.0				—
Accounts payable		303.7				204.2
Accrued dividends		—				53.8
Accrued taxes		282.1				87.7
Accrued interest		119.6				72.7
Regulatory liabilities		117.2				11.6
Other		225.8				89.5
Total Current Liabilities		2,659.2				823.7
LONG-TERM LIABILITIES:
Long-term debt, net		6,639.8				3,687.6
Long-term debt of variable interest entities, net		51.1				81.4
Deferred income taxes		1,536.0				815.7
Unamortized investment tax credits		378.9				257.1
Regulatory liabilities		2,357.1				1,094.0
Pension and post-retirement liability		949.7				491.2
Asset retirement obligations		622.7				380.0
Other		231.9				133.3
Total Long-Term Liabilities		12,767.2				6,940.3
Commitments and Contingencies (Note 12)
EQUITY:
Evergy, Inc. Shareholders' Equity:
Common stock - 600,000,000 shares authorized, without par value, 264,797,584 shares issued (275,000,000 shares authorized, $5 par value, 142,094,275 shares issued as of December 31, 2017)		9,236.4				2,734.8
Retained earnings		1,452.5				1,173.3
Total Evergy, Inc. Shareholders' Equity		10,688.9				3,908.1
Noncontrolling Interests		(40.1		)		(47.7		)
Total Equity		10,648.8				3,860.4
TOTAL LIABILITIES AND EQUITY		$	26,075.2			$	11,624.4

The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

8

EVERGY, INC.
Consolidated Statements of Income
(Unaudited)
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
	(millions, except per share amounts)
OPERATING REVENUES	$	1,582.5		$	794.3		$	3,076.1		$	1,976.2
OPERATING EXPENSES:
Fuel and purchased power	383.7			189.8			748.9			415.4
SPP network transmission costs	58.4			62.6			194.4			185.0
Operating and maintenance	330.4			140.6			754.2			415.6
Depreciation and amortization	193.9			94.6			411.6			277.3
Taxes other than income tax	83.0			41.8			183.5			126.4
Total Operating Expenses	1,049.4			529.4			2,292.6			1,419.7
INCOME FROM OPERATIONS	533.1			264.9			783.5			556.5
OTHER INCOME (EXPENSE):
Investment earnings	4.9			1.0			6.2			3.5
Other income	1.6			3.9			5.3			5.7
Other expense	(30.8		)	(11.5		)	(55.2		)	(29.6		)
Total Other Income (Expense), Net	(24.3		)	(6.6		)	(43.7		)	(20.4		)
Interest expense	89.1			43.4			191.3			128.2
INCOME BEFORE INCOME TAXES	419.7			214.9			548.5			407.9
Income tax expense	64.1			55.8			28.3			112.6
Equity in earnings of equity method investees, net of income taxes	2.0			1.6			4.7			4.9
NET INCOME	357.6			160.7			524.9			300.2
Less: Net income attributable to noncontrolling interests	2.6			2.4			7.6			10.2
NET INCOME ATTRIBUTABLE TO EVERGY, INC.	$	355.0		$	158.3		$	517.3		$	290.0
BASIC AND DILUTED EARNINGS PER AVERAGE COMMON SHARE OUTSTANDING ATTRIBUTABLE TO EVERGY (see Note 1)
Basic earnings per common share	$	1.32		$	1.11		$	2.61		$	2.03
Diluted earnings per common share	$	1.32		$	1.11		$	2.61		$	2.03
AVERAGE EQUIVALENT COMMON SHARES OUTSTANDING
Basic	268.6			142.5			197.9			142.5
Diluted	268.8			142.5			198.0			142.5

The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

9

EVERGY, INC.
Consolidated Statements of Cash Flows
(Unaudited)
Year to Date September 30	2018			2017
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	(millions)
Net income	$	524.9		$	300.2
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	411.6			277.3
Amortization of nuclear fuel	28.6			24.2
Amortization of deferred refueling outage	14.7			12.1
Amortization of deferred regulatory gain from sale leaseback	(4.1		)	(4.1		)
Amortization of corporate-owned life insurance	17.2			15.7
Non-cash compensation	25.2			6.7
Net deferred income taxes and credits	47.8			127.0
Allowance for equity funds used during construction	(2.4		)	(1.1		)
Payments for asset retirement obligations	(15.9		)	(1.9		)
Equity in earnings of equity method investees, net of income taxes	(4.7		)	(4.9		)
Other	(1.9		)	(5.3		)
Changes in working capital items:
Accounts receivable	(34.9		)	(19.7		)
Accounts receivable pledged as collateral	(15.0		)	—
Fuel inventory and supplies	44.6			15.5
Prepaid expenses and other current assets	(3.4		)	55.5
Accounts payable	(58.5		)	(10.0		)
Accrued taxes	119.0			35.6
Other current liabilities	38.9			(108.5		)
Changes in other assets	26.0			22.9
Changes in other liabilities	33.9			5.5
Cash Flows from Operating Activities	1,191.6			742.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(698.3		)	(564.6		)
Cash acquired from the merger with Great Plains Energy	1,154.2			—
Purchase of securities - trusts	(107.0		)	(15.3		)
Sale of securities - trusts	110.2			15.9
Investment in corporate-owned life insurance	(16.2		)	(16.2		)
Proceeds from investment in corporate-owned life insurance	6.5			2.1
Proceeds from settlement of interest rate swap	140.6			—
Other investing activities	(15.2		)	(3.3		)
Cash Flows from (used in) Investing Activities	574.8			(581.4		)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	(166.7		)	(177.7		)
Collateralized short-term borrowings, net	15.0			—
Proceeds from long-term debt	22.9			296.2
Retirements of long-term debt	(127.4		)	(125.0		)
Retirements of long-term debt of variable interest entities	(28.5		)	(26.8		)
Repayment of capital leases	(2.9		)	(2.6		)
Borrowings against cash surrender value of corporate-owned life insurance	55.1			53.4
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(3.9		)	—
Distributions to shareholders of noncontrolling interests	—			(5.8		)
Cash dividends paid	(350.4		)	(166.3		)
Repurchase of common stock	(486.1		)	—
Other financing activities	(17.2		)	(6.4		)
Cash Flows (used in) Financing Activities	(1,090.1		)	(161.0		)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	676.3			0.3
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period, including restricted cash of $0.1 and $0.1, respectively	3.5			3.2
End of period, including restricted cash of $0.1 and $0.1, respectively	$	679.8		$	3.5

The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

10

EVERGY, INC.
Consolidated Statements of Changes in Equity
(Unaudited)
	Evergy, Inc. Shareholders
	Common stock shares		Common stock			Retained earnings			Non-controlling interests			Total equity
	(millions, except share amounts)
Balance as of December 31, 2016	141,791,153		$	2,727.3		$	1,078.6		$	27.3		$	3,833.2
Net income	—		—			290.0			10.2			300.2
Issuance of stock	12,131		0.6			—			—			0.6
Issuance of stock for compensation and reinvested dividends	290,892		4.9			—			—			4.9
Tax withholding related to stock compensation	—		(7.0		)	—			—			(7.0		)
Dividends declared on common stock ($1.20 per share)	—		—			(172.1		)	—			(172.1		)
Stock compensation expense	—		6.7			—			—			6.7
Deconsolidation of noncontrolling interests	—		—			—			(81.9		)	(81.9		)
Distributions to shareholders of noncontrolling interests	—		—			—			(5.7		)	(5.7		)
Balance as of September 30, 2017	142,094,176		$	2,732.5		$	1,196.5		$	(50.1	)	$	3,878.9
Balance as of December 31, 2017	142,094,275		$	2,734.8		$	1,173.3		$	(47.7	)	$	3,860.4
Net income	—		—			517.3			7.6			524.9
Issuance of stock to Great Plains Energy shareholders	128,947,518		6,979.9			—			—			6,979.9
Issuance of restricted common stock	122,505		—			—			—			—
Issuance of stock for compensation and reinvested dividends	528,359		0.4			—			—			0.4
Tax withholding related to stock compensation	—		(17.2		)	—			—			(17.2		)
Dividends declared on common stock ($1.26 per share)	—		—			(237.5		)	—			(237.5		)
Dividend equivalents declared	—		—			(0.6		)	—			(0.6		)
Stock compensation expense	—		25.2			—			—			25.2
Repurchase of common stock	(6,895,073	)	(486.1		)	—			—			(486.1		)
Other	—		(0.6		)	—			—			(0.6		)
Balance as of September 30, 2018	264,797,584		$	9,236.4		$	1,452.5		$	(40.1	)	$	10,648.8

The accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

11

WESTAR ENERGY, INC.
Consolidated Balance Sheets
(Unaudited)
	September 30			December 31
	2018			2017
ASSETS	(millions, except share amounts)
CURRENT ASSETS:
Cash and cash equivalents		$	3.3		$	3.4
Receivables, net		347.5			290.7
Related party receivables		0.7			—
Fuel inventory and supplies		268.7			293.6
Regulatory assets		120.4			99.5
Prepaid expenses and other assets		31.9			39.8
Total Current Assets		772.5			727.0
PROPERTY, PLANT AND EQUIPMENT, NET		9,637.5			9,553.8
PROPERTY, PLANT AND EQUIPMENT OF VARIABLE INTEREST ENTITIES, NET		170.9			176.3
OTHER ASSETS:
Regulatory assets		693.7			685.4
Nuclear decommissioning trust fund		245.8			237.1
Other		227.3			244.8
Total Other Assets		1,166.8			1,167.3
TOTAL ASSETS		$	11,747.7		$	11,624.4

The disclosures regarding Westar Energy included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

12

WESTAR ENERGY, INC.
Consolidated Balance Sheets
(Unaudited)
	September 30				December 31
	2018				2017
LIABILITIES AND EQUITY	(millions, except share amounts)
CURRENT LIABILITIES:
Current maturities of long-term debt		$	300.0			$	—
Current maturities of long-term debt of variable interest entities		30.3				28.5
Notes payable and commercial paper		326.3				275.7
Accounts payable		135.1				204.2
Related party payables		73.9				—
Accrued dividends		—				53.8
Accrued taxes		144.9				87.7
Accrued interest		65.3				72.7
Regulatory liabilities		91.6				11.6
Other		109.4				89.5
Total Current Liabilities		1,276.8				823.7
LONG-TERM LIABILITIES:
Long-term debt, net		3,389.7				3,687.6
Long-term debt of variable interest entities, net		51.1				81.4
Deferred income taxes		787.1				815.7
Unamortized investment tax credits		255.1				257.1
Regulatory liabilities		1,136.9				1,094.0
Pension and post-retirement liability		465.2				491.2
Asset retirement obligations		257.8				380.0
Other		127.8				133.3
Total Long-Term Liabilities		6,470.7				6,940.3
Commitments and Contingencies (Note 12)
EQUITY:
Westar Energy, Inc. Shareholder's Equity:
Common stock - 1,000 shares authorized, $0.01 par value, 1 share issued (275,000,000 shares authorized, $5 par value, and 142,094,275 shares issued as of December 31, 2017)		2,737.6				2,734.8
Retained earnings		1,302.7				1,173.3
Total Westar Energy, Inc. Shareholder's Equity		4,040.3				3,908.1
Noncontrolling Interests		(40.1		)		(47.7		)
Total Equity		4,000.2				3,860.4
TOTAL LIABILITIES AND EQUITY		$	11,747.7			$	11,624.4

The disclosures regarding Westar Energy included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

13

WESTAR ENERGY, INC.
Consolidated Statements of Income
(Unaudited)
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
	(millions)
OPERATING REVENUES	$	764.8		$	794.3		$	2,015.9		$	1,976.2
OPERATING EXPENSES:
Fuel and purchased power	169.7			189.8			463.2			415.4
SPP network transmission costs	58.4			62.6			194.4			185.0
Operating and maintenance	141.7			140.6			491.4			415.6
Depreciation and amortization	95.9			94.6			281.6			277.3
Taxes other than income tax	42.2			41.8			128.8			126.4
Total Operating Expenses	507.9			529.4			1,559.4			1,419.7
INCOME FROM OPERATIONS	256.9			264.9			456.5			556.5
OTHER INCOME (EXPENSE):
Investment earnings	—			1.0			(0.4		)	3.5
Other income	1.3			3.9			4.9			5.7
Other expense	(15.2		)	(11.5		)	(36.1		)	(29.6		)
Total Other Income (Expense), Net	(13.9		)	(6.6		)	(31.6		)	(20.4		)
Interest expense	43.9			43.4			132.1			128.2
INCOME BEFORE INCOME TAXES	199.1			214.9			292.8			407.9
Income tax expense (benefit)	22.4			55.8			(22.0		)	112.6
Equity in earnings of equity method investees, net of income taxes	1.3			1.6			3.7			4.9
NET INCOME	178.0			160.7			318.5			300.2
Less: Net income attributable to noncontrolling interests	2.6			2.4			7.6			10.2
NET INCOME ATTRIBUTABLE TO WESTAR ENERGY, INC.	$	175.4		$	158.3		$	310.9		$	290.0

The disclosures regarding Westar Energy included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

14

WESTAR ENERGY, INC.
Consolidated Statements of Cash Flows
(Unaudited)
Year to Date September 30	2018			2017
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	(millions)
Net income	$	318.5		$	300.2
Adjustments to reconcile income (loss) to net cash from operating activities:
Depreciation and amortization	281.6			277.3
Amortization of nuclear fuel	18.6			24.2
Amortization of deferred refueling outage	10.5			12.1
Amortization of deferred regulatory gain from sale leaseback	(4.1		)	(4.1		)
Amortization of corporate-owned life insurance	17.2			15.7
Non-cash compensation	19.9			6.7
Net deferred income taxes and credits	(34.2		)	127.0
Allowance for equity funds used during construction	(2.4		)	(1.1		)
Payments for asset retirement obligations	(10.6		)	(1.9		)
Equity in earnings of equity method investees, net of income taxes	(3.7		)	(4.9		)
Other	(1.9		)	(5.3		)
Changes in working capital items:
Accounts receivable	(50.6		)	(19.7		)
Fuel inventory and supplies	25.4			15.5
Prepaid expenses and other current assets	(7.0		)	55.5
Accounts payable	36.2			(10.0		)
Accrued taxes	74.4			35.6
Other current liabilities	23.2			(108.5		)
Changes in other assets	22.9			22.9
Changes in other liabilities	(26.7		)	5.5
Cash Flows from Operating Activities	707.2			742.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(510.3		)	(564.6		)
Purchase of securities - trusts	(96.1		)	(15.3		)
Sale of securities - trusts	101.2			15.9
Investment in corporate-owned life insurance	(16.2		)	(16.2		)
Proceeds from investment in corporate-owned life insurance	6.5			2.1
Other investing activities	(8.1		)	(3.3		)
Cash Flows (used in) Investing Activities	(523.0		)	(581.4		)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	48.3			(177.7		)
Proceeds from long-term debt	—			296.2
Retirements of long-term debt	—			(125.0		)
Retirements of long-term debt of variable interest entities	(28.5		)	(26.8		)
Repayment of capital leases	(2.9		)	(2.6		)
Borrowings against cash surrender value of corporate-owned life insurance	55.1			53.4
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(3.9		)	—
Distributions to shareholders of noncontrolling interests	—			(5.8		)
Cash dividends paid	(235.1		)	(166.3		)
Other financing activities	(17.3		)	(6.4		)
Cash Flows (used in) Financing Activities	(184.3		)	(161.0		)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(0.1		)	0.3
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period, including restricted cash of $0.1 and $0.1, respectively	3.5			3.2
End of period, including restricted cash of $0.1 and $0.1, respectively	$	3.4		$	3.5

The disclosures regarding Westar Energy included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

15

WESTAR ENERGY, INC.
Consolidated Statements of Changes in Equity
(Unaudited)
	Westar Energy, Inc. Shareholders
	Common stock shares		Common stock			Retained earnings			Non-controlling interests			Total equity
	(millions, except share amounts)
Balance as of December 31, 2016	141,791,153		$	2,727.3		$	1,078.6		$	27.3		$	3,833.2
Net income	—		—			290.0			10.2			300.2
Issuance of stock	12,131		0.6			—			—			0.6
Issuance of stock for compensation and reinvested dividends	290,892		4.9			—			—			4.9
Tax withholding related to stock compensation	—		(7.0		)	—			—			(7.0		)
Dividends declared on common stock ($1.20 per share)	—		—			(172.1		)	—			(172.1		)
Stock compensation expense	—		6.7			—			—			6.7
Deconsolidation of noncontrolling interests	—		—			—			(81.9		)	(81.9		)
Distributions to shareholders of noncontrolling interests	—		—			—			(5.7		)	(5.7		)
Balance as of September 30, 2017	142,094,176		$	2,732.5		$	1,196.5		$	(50.1	)	$	3,878.9
Balance as of December 31, 2017	142,094,275		$	2,734.8		$	1,173.3		$	(47.7	)	$	3,860.4
Net income	—		—			310.9			7.6			318.5
Issuance of stock for compensation and reinvested dividends	516,990		—			—			—			—
Stock cancelled pursuant to Amended Merger Agreement	(142,611,264	)	—			—			—			—
Tax withholding related to stock compensation	—		(17.2		)	—			—			(17.2		)
Dividends declared on common stock	—		—			(181.5		)	—			(181.5		)
Stock compensation expense	—		19.9			—			—			19.9
Other	—		0.1			—			—			0.1
Balance as of September 30, 2018	1		$	2,737.6		$	1,302.7		$	(40.1	)	$	4,000.2

The disclosures regarding Westar Energy included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

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KANSAS CITY POWER & LIGHT COMPANY
Consolidated Balance Sheets
(Unaudited)
	September 30			December 31
	2018			2017
ASSETS	(millions, except share amounts)
CURRENT ASSETS:
Cash and cash equivalents		$	3.4		$	2.2
Receivables, net		102.9			106.3
Related party receivables		142.2			84.7
Accounts receivable pledged as collateral		130.0			130.0
Fuel inventory and supplies		183.8			197.0
Income taxes receivable		—			5.4
Regulatory assets		145.6			153.6
Prepaid expenses and other assets		35.7			27.6
Total Current Assets		743.6			706.8
PROPERTY, PLANT AND EQUIPMENT, NET		6,660.3			6,565.6
OTHER ASSETS:
Regulatory assets		479.5			545.1
Nuclear decommissioning trust fund		272.2			258.4
Other		54.5			48.0
Total Other Assets		806.2			851.5
TOTAL ASSETS		$	8,210.1		$	8,123.9

The disclosures regarding KCP&L included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

17

KANSAS CITY POWER & LIGHT COMPANY
Consolidated Balance Sheets
(Unaudited)
	September 30			December 31
	2018			2017
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Current maturities of long-term debt		$	400.0		$	350.0
Notes payable and commercial paper		209.2			167.5
Collateralized note payable		130.0			130.0
Accounts payable, net		132.9			249.0
Related party payables		3.2			—
Accrued taxes		121.5			29.0
Accrued interest		39.5			32.4
Regulatory liabilities		15.3			8.3
Other		98.5			98.3
Total Current Liabilities		1,150.1			1,064.5
LONG-TERM LIABILITIES:
Long-term debt, net		2,129.9			2,232.2
Deferred income taxes		619.6			616.1
Unamortized investment tax credits		120.9			121.8
Regulatory liabilities		862.9			770.9
Pension and post-retirement liability		522.3			512.2
Asset retirement obligations		222.7			231.4
Other		80.7			61.6
Total Long-Term Liabilities		4,559.0			4,546.2
Commitments and Contingencies (Note 12)
EQUITY:
Common stock - 1,000 shares authorized, without par value, 1 share issued, stated value		1,563.1			1,563.1
Retained earnings		934.8			949.7
Accumulated other comprehensive income		3.1			0.4
Total Equity		2,501.0			2,513.2
TOTAL LIABILITIES AND EQUITY		$	8,210.1		$	8,123.9

The disclosures regarding KCP&L included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

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KANSAS CITY POWER & LIGHT COMPANY
Consolidated Statements of Comprehensive Income
(Unaudited)
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
	(millions)
OPERATING REVENUES	$	559.6		$	595.7		$	1,408.9		$	1,474.3
OPERATING EXPENSES:
Fuel and purchased power	142.4			143.9			392.4			367.3
Operating and maintenance	127.3			114.3			354.5			350.7
Depreciation and amortization	71.9			66.3			209.0			199.9
Taxes other than income tax	28.6			51.4			87.9			140.2
Total Operating Expenses	370.2			375.9			1,043.8			1,058.1
INCOME FROM OPERATIONS	189.4			219.8			365.1			416.2
OTHER INCOME (EXPENSE):
Investment earnings	0.7			0.5			2.1			1.5
Other income	0.2			2.2			1.7			5.4
Other expense	(9.0		)	(11.9		)	(22.9		)	(40.7		)
Total Other Income (Expense), Net	(8.1		)	(9.2		)	(19.1		)	(33.8		)
Interest expense	33.0			34.3			100.6			105.5
INCOME BEFORE INCOME TAXES	148.3			176.3			245.4			276.9
Income tax expense	28.0			62.2			80.3			99.0
NET INCOME	$	120.3		$	114.1		$	165.1		$	177.9
COMPREHENSIVE INCOME
NET INCOME	$	120.3		$	114.1		$	165.1		$	177.9
OTHER COMPREHENSIVE INCOME:
Derivative hedging activity
Reclassification to expenses, net of tax:	0.8			1.2			2.7			3.8
Derivative hedging activity, net of tax	0.8			1.2			2.7			3.8
Total Other Comprehensive Income	0.8			1.2			2.7			3.8
COMPREHENSIVE INCOME	$	121.1		$	115.3		$	167.8		$	181.7

The disclosures regarding KCP&L included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

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KANSAS CITY POWER & LIGHT COMPANY
Consolidated Statements of Cash Flows
(Unaudited)
Year to Date September 30	2018			2017
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	(millions)
Net income	$	165.1		$	177.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	209.0			199.9
Amortization of nuclear fuel	18.7			24.1
Amortization of deferred refueling outage	10.3			13.7
Net deferred income taxes and credits	25.2			32.6
Allowance for equity funds used during construction	(1.2		)	(3.4		)
Payments for asset retirement obligations	(9.9		)	(14.9		)
Other	2.7			6.3
Changes in working capital items:
Accounts receivable	(41.0		)	(19.5		)
Accounts receivable pledged as collateral	—			(20.0		)
Fuel inventory and supplies	13.2			3.6
Prepaid expenses and other current assets	(3.6		)	8.9
Accounts payable	(97.7		)	(75.1		)
Accrued taxes	97.9			122.7
Other current liabilities	8.5			9.9
Changes in other assets	28.3			52.6
Changes in other liabilities	79.0			7.3
Cash Flows from Operating Activities	504.5			526.6
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(310.6		)	(317.1		)
Purchase of securities - trusts	(27.9		)	(23.8		)
Sale of securities - trusts	22.5			21.3
Other investing activities	3.4			0.8
Cash Flows (used in) Investing Activities	(312.6		)	(318.8		)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	40.3			(60.9		)
Collateralized short-term borrowings, net	—			20.0
Proceeds from long-term debt	319.5			296.2
Retirements of long-term debt	(373.4		)	(281.0		)
Cash dividends paid	(180.0		)	(182.0		)
Other financing activities	2.9			—
Cash Flows (used in) Financing Activities	(190.7		)	(207.7		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	1.2			0.1
CASH AND CASH EQUIVALENTS:
Beginning of period	2.2			4.5
End of period	$	3.4		$	4.6

The disclosures regarding KCP&L included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

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KANSAS CITY POWER & LIGHT COMPANY
Consolidated Statements of Changes in Equity
(Unaudited)
	Common stock shares	Common stock		Retained earnings			AOCI - Net gains (losses) on cash flow hedges			Total equity
	(millions, except share amounts)
Balance as of December 31, 2016	1	$	1,563.1	$	982.6		$	(4.2	)	$	2,541.5
Net income	—	—		177.9			—			177.9
Cumulative effect of adoption of ASU 2016-09	—	—		(0.7		)	—			(0.7		)
Dividends declared on common stock	—	—		(182.0		)	—			(182.0		)
Derivative hedging activity, net of tax	—	—		—			3.8			3.8
Balance as of September 30, 2017	1	$	1,563.1	$	977.8		$	(0.4	)	$	2,540.5
Balance as of December 31, 2017	1	$	1,563.1	$	949.7		$	0.4		$	2,513.2
Net income	—	—		165.1			—			165.1
Dividends declared on common stock	—	—		(180.0		)	—			(180.0		)
Derivative hedging activity, net of tax	—	—		—			2.7			2.7
Balance as of September 30, 2018	1	$	1,563.1	$	934.8		$	3.1		$	2,501.0

The disclosures regarding KCP&L included in the accompanying Notes to Unaudited Consolidated Financial Statements are an integral part of these statements.

21

EVERGY, INC.

WESTAR ENERGY, INC.

KANSAS CITY POWER & LIGHT COMPANY

Combined Notes to Unaudited Consolidated Financial Statements

The notes to unaudited consolidated financial statements that follow are a combined presentation for Evergy, Inc., Westar Energy, Inc. and Kansas City Power & Light Company, all registrants under this filing.  The terms "Evergy," "Westar Energy," "KCP&L" and "Evergy Companies" are used throughout this report.  "Evergy" refers to Evergy, Inc. and its consolidated subsidiaries, unless otherwise indicated.  "Westar Energy" refers to Westar Energy, Inc. and its consolidated subsidiaries. "KCP&L" refers to Kansas City Power & Light Company and its consolidated subsidiaries. "Evergy Companies" refers to Evergy, Westar Energy, and KCP&L, collectively, which are individual registrants within the Evergy consolidated group. The Evergy Companies' interim financial statements reflect all adjustments (which include normal, recurring adjustments) that are necessary, in the opinion of management, for a fair presentation of the results for the interim periods presented.  

1. ORGANIZATION AND BASIS OF PRESENTATION

Organization

Evergy is a public utility holding company incorporated in 2017 and headquartered in Kansas City, Missouri. Evergy operates primarily through the following wholly-owned direct subsidiaries:

• Westar Energy is an integrated, regulated electric utility that provides electricity to customers in the state of Kansas. Westar Energy has one active wholly-owned subsidiary with significant operations, Kansas Gas and Electric Company (KGE).

• KCP&L is an integrated, regulated electric utility that provides electricity to customers in the states of Missouri and Kansas. KCP&L has one active wholly-owned subsidiary, Kansas City Power & Light Receivables Company (KCP&L Receivables Company).

• KCP&L Greater Missouri Operations Company (GMO) is an integrated, regulated electric utility that provides electricity to customers in the state of Missouri. GMO also provides regulated steam service to certain customers in the St. Joseph, Missouri area. GMO has one active wholly-owned subsidiary, GMO Receivables Company.

• GPE Transmission Holding Company, LLC (GPETHC) owns 13.5% of Transource Energy, LLC (Transource) with the remaining 86.5% owned by AEP Transmission Holding Company, LLC, a subsidiary of American Electric Power Company, Inc. (AEP). Transource is focused on the development of competitive electric transmission projects. GPETHC accounts for its investment in Transource under the equity method.

Westar Energy also owns a 50% interest in Prairie Wind Transmission, LLC (Prairie Wind), which is a joint venture between Westar Energy and affiliates of AEP and Berkshire Hathaway Energy Company. Prairie Wind owns a 108-mile, 345 kV double-circuit transmission line that is now being used to provide transmission service in the Southwest Power Pool, Inc. (SPP). Westar Energy accounts for its investment in Prairie Wind under the equity method.

Westar Energy and KGE conduct business in their respective service territories using the name Westar Energy. KCP&L and GMO conduct business in their respective service territories using the name KCP&L. Collectively, the Evergy Companies have approximately 12,300 MWs of owned generating capacity and engage in the generation, transmission, distribution and sale of electricity to approximately 1.6 million customers in the states of Kansas and Missouri.

Evergy was incorporated in 2017 as Monarch Energy Holding, Inc. (Monarch Energy), a wholly-owned subsidiary of Great Plains Energy Incorporated (Great Plains Energy). Prior to the closing of the merger transactions, Monarch Energy changed its name to Evergy and did not conduct any business activities other than those required for its formation and matters contemplated by the Amended and Restated Agreement and Plan of Merger, dated as of July

22

9, 2017, by and among Great Plains Energy, Westar Energy, Monarch Energy and King Energy, Inc. (King Energy), a wholly-owned subsidiary of Monarch Energy (Amended Merger Agreement). On June 4, 2018, in accordance with the Amended Merger Agreement, Great Plains Energy merged into Evergy, with Evergy surviving the merger and King Energy merged into Westar Energy, with Westar Energy surviving the merger. These merger transactions resulted in Evergy becoming the parent entity of Westar Energy and the direct subsidiaries of Great Plains Energy, including KCP&L and GMO. See Note 2 for additional information regarding the merger.

Principles of Consolidation

Westar Energy was determined to be the accounting acquirer in the merger and thus, the predecessor of Evergy. Therefore, Evergy's consolidated financial statements reflect the results of operations of Westar Energy for the three months ended and year to date September 30, 2017 and the financial position of Westar Energy as of December 31, 2017. Evergy had separate operations for the period beginning with the quarter ended June 30, 2018, and references to amounts for periods after the closing of the merger relate to Evergy. The results of Great Plains Energy's direct subsidiaries have been included in Evergy's results of operations from the date of the closing of the merger and thereafter.

KCP&L and Westar Energy will continue to maintain their current reporting requirements as Securities and Exchange Commission (SEC) registrants. KCP&L has elected not to apply "push-down accounting" related to the merger, whereby the adjustments of assets and liabilities to fair value and the resulting goodwill would be recorded on the financial statements of the acquired subsidiary. These adjustments for KCP&L, as well as those related to the acquired assets and liabilities of Great Plains Energy and its other direct subsidiaries, are reflected at consolidated Evergy.

Each of Evergy's, Westar Energy's and KCP&L's consolidated financial statements includes the accounts of their subsidiaries and variable interest entities (VIEs) of which they are the primary beneficiary. Undivided interests in jointly-owned generation facilities are included on a proportionate basis.  Intercompany transactions have been eliminated. The Evergy Companies assess financial performance and allocate resources on a consolidated basis (i.e., operate in one segment).

In preparing financial statements that conform to generally accepted accounting principles (GAAP), management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

These unaudited consolidated financial statements have been prepared in accordance with GAAP for the United States of America for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these unaudited consolidated financial statements do not include all of the information and notes required by GAAP for annual financial statements. Because the unaudited consolidated financial statements and notes do not include all of the information and notes required by GAAP for annual financial statements, the unaudited consolidated financial statements and other information included in this quarterly report should be read in conjunction with the Westar Energy First Quarter 2018 Quarterly Report on Form 10-Q, the Great Plains Energy and KCP&L combined First Quarter 2018 Quarterly Report on Form 10-Q, the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K.

Certain changes in classification and corresponding reclassification of prior period data were made in Evergy's, Westar Energy's and KCP&L's unaudited consolidated balance sheets, statements of income and comprehensive income and unaudited statements of cash flows for comparative purposes. Evergy reflects the classifications of Westar Energy as the accounting acquirer in the merger. These reclassifications did not affect Evergy's, Westar Energy's or KCP&L's net income or Evergy's, Westar Energy's or KCP&L's cash flows from operations, investing or financing.

Most significantly for Westar Energy's consolidated balance sheets as of December 31, 2017 was the reclassification of $50.2 million from accrued employee benefits (currently reported as pension and post-retirement liability) to other long-term liabilities. Most significantly for KCP&L's consolidated balance sheets, current regulatory assets

23

and liabilities have been presented separately from the non-current portions in each respective consolidated balance sheet where recovery or refund is expected within the next 12 months.

The table below summarizes KCP&L's reclassifications related to operating and investing activities for its consolidated statement of cash flows for year to date September 30, 2017.

	Year to Date
	September 30, 2017
	As Filed			Updated
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	(in millions)
Adjustments to reconcile income to net cash from operating activities:
Amortization of other	$	23.4		$	—
Amortization of deferred refueling outage	—			13.7
Deferred income taxes, net	33.4			—
Investment tax credit amortization	(0.8		)	—
Net deferred income taxes and credits	—			32.6
Payments for asset retirement obligations	—			(14.9		)
Other(a)	(16.0		)	6.3
Changes in working capital items:
Fuel inventory and supplies	—			3.6
Fuel inventories(a)	10.8			—
Materials and supplies(a)	(7.2		)	—
Prepaid expenses and other current assets	—			8.9
Accrued interest(a)	8.1			—
Other current liabilities	—			9.9
Changes in other assets	—			52.6
Changes in other liabilities	—			7.3
Deferred refueling outage costs(a)	12.1			—
Pension and post-retirement benefit obligations(a)	48.6			—
Fuel recovery mechanisms(a)	7.6			—
Total reclassifications	$	120.0		$	120.0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	$	—		$	(317.1	)
Utility capital expenditures	(295.1		)	—
Allowance for borrowed funds used during construction	(4.2		)	—
Other investing activities	(17.0		)	0.8
Total reclassifications	$	(316.3	)	$	(316.3	)

^(a)Previously reported within Note 3 to the consolidated financial statements of the Great Plains Energy and KCP&L combined Third Quarter 2017 Quarterly Report on Form 10-Q.

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Fuel Inventory and Supplies

The Evergy Companies record fuel inventory and supplies at average cost. The balances for fuel inventory and supplies are stated separately in the table below.

	September 30			December 31
		2018			2017
Evergy		(millions)
Fuel inventory		$	163.1		$	94.1
Supplies		357.8			199.5
Fuel inventory and supplies		$	520.9		$	293.6
Westar Energy
Fuel inventory		$	84.9		$	94.1
Supplies		183.8			199.5
Fuel inventory and supplies		$	268.7		$	293.6
KCP&L(a)
Fuel inventory		$	54.6		$	71.0
Supplies		129.2			126.0
Fuel inventory and supplies		$	183.8		$	197.0

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Property, Plant and Equipment

The following tables summarize the property, plant and equipment of Evergy, Westar Energy and KCP&L.

September 30, 2018	Evergy			Westar Energy			KCP&L
	(millions)
Electric plant in service	$	27,290.0		$	13,236.1		$	10,594.2
Electric plant acquisition adjustment	740.6			740.6			—
Accumulated depreciation	(10,168.2		)	(4,838.9		)	(4,172.3		)
Plant in service	17,862.4			9,137.8			6,421.9
Construction work in progress	723.5			443.6			183.4
Nuclear fuel, net	109.1			54.1			55.0
Plant to be retired, net(b)	141.0			2.0			—
Property, plant and equipment, net	$	18,836.0		$	9,637.5		$	6,660.3
December 31, 2017	Evergy			Westar Energy			KCP&L(a)
	(millions)
Electric plant in service	$	12,954.3		$	12,954.3		$	10,213.2
Electric plant acquisition adjustment	739.0			739.0			—
Accumulated depreciation	(4,651.7		)	(4,651.7		)	(4,070.3		)
Plant in service	9,041.6			9,041.6			6,142.9
Construction work in progress	434.9			434.9			350.3
Nuclear fuel, net	71.4			71.4			72.4
Plant to be retired, net(b)	5.9			5.9			—
Property, plant and equipment, net	$	9,553.8		$	9,553.8		$	6,565.6

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

^(b) As of September 30, 2018, represents the planned retirement of GMO's Sibley No. 3 Unit and Westar Energy analog meters prior to the end of their remaining useful lives. As of December 31, 2017, represents the planned retirement of Westar Energy analog meters prior to the end of their remaining useful lives.

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Earnings Per Share

Evergy has participating securities in the form of unvested restricted share units (RSUs) with nonforfeitable rights to dividend equivalents that receive dividends on an equal basis with dividends declared on common stock. As a result, Evergy applies the two-class method of computing basic and diluted earnings per share (EPS).

To compute basic EPS, Evergy divides the earnings allocated to common stock by the weighted average number of common shares outstanding. Diluted EPS includes the effect of issuable common shares resulting from RSUs with forfeitable rights to dividend equivalents, performance shares and restricted stock. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method.

The following table reconciles Evergy's basic and diluted EPS.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Income	(millions, except per share amounts)
Net income	$	357.6	$	160.7	$	524.9	$	300.2
Less: net income attributable to noncontrolling interests	2.6		2.4		7.6		10.2
Net income attributable to Evergy, Inc.	355.0		158.3		517.3		290.0
Less: net income allocated to RSUs	0.2		0.3		0.4		0.5
Net income allocated to common stock	$	354.8	$	158.0	$	516.9	$	289.5
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic	268.6		142.5		197.9		142.5
Add: effect of dilutive securities	0.2		—		0.1		—
Weighted average equivalent common shares outstanding - diluted	268.8		142.5		198.0		142.5
Basic and Diluted EPS	$	1.32	$	1.11	$	2.61	$	2.03

There were no anti-dilutive securities excluded from the computation of diluted EPS for the three months ended and year to date September 30, 2018 and 2017.

Dividends Declared

In November 2018, Evergy's Board of Directors (Evergy Board) declared a quarterly dividend of $0.475 per share on Evergy's common stock. The common dividend is payable December 20, 2018, to shareholders of record as of November 29, 2018.

In November 2018, Westar Energy's Board of Directors declared a cash dividend payable to Evergy of $70.0 million, payable on December 19, 2018.

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Supplemental Cash Flow Information

Year to Date September 30	2018			2017
Evergy	(millions)
Cash paid for (received from):
Interest, net of amounts capitalized	$	148.7		$	109.0
Interest of VIEs	2.3			3.1
Income taxes, net of refunds	0.6			(12.6		)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(24.8		)	112.5
Deconsolidation of property, plant and equipment of VIE	—			(72.9		)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.4			4.9
Deconsolidation of VIE	—			(83.1		)
Assets acquired through capital leases	0.1			4.6
Westar Energy
Cash paid for (received from):
Interest, net of amounts capitalized	$	110.5		$	109.0
Interest of VIEs	2.3			3.1
Income taxes, net of refunds	—			(12.6		)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(42.0		)	112.5
Deconsolidation of property, plant and equipment of VIE	—			(72.9		)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	—			4.9
Deconsolidation of VIE	—			(83.1		)
Assets acquired through capital leases	0.1			4.6
KCP&L(a)
Cash paid for (received from):
Interest, net of amounts capitalized	$	87.6		$	88.6
Income taxes, net of refunds	28.4			4.9
Non-cash investing transactions:
Property, plant and equipment additions	15.2			15.5

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

See Note 2 for the non-cash information related to the merger transaction, including the fair value of Great Plains Energy's assets acquired and liabilities assumed and the issuance of Evergy common stock.

New Accounting Standards

Intangibles - Internal-Use Software

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which aligns the requirements for recording implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. An entity in a hosting arrangement that is a service contract will need to determine which project stage (that is, preliminary project stage, application development stage or post-implementation stage) an implementation activity relates. Costs for implementation activities in the application development stage are recorded as a prepaid asset depending on the nature of the costs, while costs incurred during

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the preliminary project and post-implementation stages are expensed as the activities are incurred. Costs that are recorded to a prepaid asset are to be expensed over the term of the hosting arrangement. The new guidance is effective for annual periods beginning after December 15, 2019 and interim periods within those fiscal years. The new guidance can be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. Early adoption is permitted. The Evergy Companies are currently evaluating the new guidance including the timing of adoption.

Compensation - Retirement Benefits

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits, which requires an employer to disaggregate the service cost component from the other components of net benefit cost. The service cost component is to be reported in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The non-service cost components are to be reported separately from service costs and outside of a subtotal of income from operations. The amendments in this update allow only the service cost component to be eligible for capitalization as part of utility plant. The non-service cost components that are no longer eligible for capitalization as part of utility plant will be recorded as a regulatory asset. The new guidance is to be applied retrospectively for the presentation of service cost and non-service cost components in the income statement and prospectively for the capitalization of the service cost component and is effective for interim and annual periods beginning after December 15, 2017. The Evergy Companies adopted ASU No. 2017-07 on January 1, 2018, and accordingly have retrospectively adjusted prior periods. The Evergy Companies utilized the practical expedient that allows for the use of amounts disclosed in Note 7 for applying the retrospective presentation to the 2017 consolidated statements of income and comprehensive income.

The following table reflects the retrospective adjustments in the line items of the Evergy Companies' consolidated statements of income and comprehensive income associated with the adoption of ASU No. 2017-07.

	Three Months Ended									Year to Date
	September 30, 2017									September 30, 2017
	As Previously Reported(b)			Effect of Change			As Reported			As Previously Reported(b)			Effect of Change			As Reported
Evergy	(millions)
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
Westar Energy
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
KCP&L(a)
Operating and maintenance expense	$	124.2		$	(9.9	)	$	114.3		$	385.0		$	(34.3	)	$	350.7
Total operating expenses	385.8			(9.9		)	375.9			1,092.4			(34.3		)	1,058.1
Income from operations	209.9			9.9			219.8			381.9			34.3			416.2
Other expense	(2.0		)	(9.9		)	(11.9		)	(6.4		)	(34.3		)	(40.7		)
Total other income (expense), net	0.7			(9.9		)	(9.2		)	0.5			(34.3		)	(33.8		)

^(a) KCP&L amounts are not included in consolidated Evergy for the three months ended and year to date September 30, 2017.

^(b) Certain Evergy, Westar Energy, and KCP&L as previously reported amounts have been adjusted to reflect reclassification adjustments made for comparative purposes as discussed further in Principles of Consolidation above and that have no impact on net income.

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Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments, which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Among other clarifications, the guidance requires that cash proceeds received from the settlement of corporate-owned life insurance (COLI) policies be classified as cash inflows from investing activities and that cash payments for premiums on COLI policies may be classified as cash outflows for investing activities, operating activities or a combination of both. Retrospective application is required. The Evergy Companies adopted the guidance effective January 1, 2018, which resulted in retrospective reclassification of cash proceeds of $1.9 million from the settlement of COLI policies from cash inflows from operating activities to cash inflows from investing activities for year to date September 30, 2017, for Evergy and Westar Energy.  In addition, cash payments of $2.3 million for premiums on COLI policies were reclassified from cash outflows used in operating activities to cash outflows used in investing activities for the same period for Evergy and Westar Energy. The adoption of ASU No. 2016-15 did not have a material impact on KCP&L.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash, which requires that the statement of cash flows explains the change for the period of restricted cash and restricted cash equivalents along with cash and cash equivalents. The guidance requires a retrospective transition method and is effective for fiscal years beginning after December 15, 2017. The Evergy Companies adopted the guidance effective January 1, 2018. As a result, Evergy and Westar Energy adjusted amounts previously reported for cash and cash equivalents to include restricted cash which resulted in an increase to beginning and ending cash, cash equivalents and restricted cash of $0.1 million for year to date September 30, 2017. The adoption of ASU No. 2016-18 did not have a material impact on KCP&L.

Leases

In February 2016, the FASB issued ASU No. 2016-02, Leases, which requires an entity that is a lessee to record a right-of-use asset and a lease liability for lease payments on the balance sheet for all leases with terms longer than 12 months.  Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement.  The new guidance is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted, and requires a modified retrospective transition approach with an option to either adjust or not adjust comparative periods.  The Evergy Companies plan to adopt the new guidance on January 1, 2019, without adjusting comparative periods. In 2016, management began evaluating current leases to assess the initial impact on Evergy's consolidated financial results. The Evergy Companies continue to evaluate the guidance and disclosure requirements and believe application of the guidance will result in an increase to the assets and liabilities on their consolidated balance sheets, with minimal impact to their consolidated statements of income and comprehensive income. In addition, management is evaluating the Evergy Companies' internal controls over financial reporting as needed to ensure that they remain effective after implementation. The standard permits an entity to elect a practical expedient for existing or expired contracts to forgo reassessing leases to determine whether each is in scope of the new standard and to forgo reassessing lease classification. The Evergy Companies expect to elect this practical expedient upon implementation. In July 2018, the FASB issued ASU No. 2018-11, which provides entities an optional transition method to apply ASU No. 2016-02 as of the date of initial application of the standard rather than as of the earliest period presented. The Evergy Companies are evaluating this update and have not yet determined if they will elect to use this optional transition method.

Financial Instruments

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities, which generally requires equity investments to be measured at fair value with changes in fair value recognized in net income. Under the new standard, equity securities are no longer to be classified as available-for-sale or trading securities. The guidance requires a modified retrospective transition method. This guidance is effective for fiscal years beginning after December 15, 2017; accordingly, the Evergy Companies adopted the new standard on January 1, 2018, without a material impact on their consolidated financial statements.

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Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. In August 2015, the FASB issued ASU No. 2015-14, deferring the effective date of ASU No. 2014-09 one year, from January 1, 2017, to January 1, 2018. The ASU replaced most existing revenue recognition guidance in GAAP when it became effective. The Evergy Companies adopted ASU No. 2014-09 and its related amendments (ASC 606) on January 1, 2018, using the modified retrospective transition method for all contracts not completed as of the date of adoption. Results for reporting periods beginning after January 1, 2018 are presented under ASC 606 while historical periods have not been adjusted and continue to be reported in accordance with the legacy guidance in ASC 605 - Revenue Recognition.

There was no cumulative effect adjustment to the opening balance of retained earnings in 2018 for the Evergy Companies as a result of the adoption of the new guidance. The impact to both operating revenues and taxes other than income taxes on KCP&L's statements of comprehensive income in 2018 as a result of adopting ASC 606 was a decrease of $22.1 million and $59.7 million for the three months ended and year to date September 30, 2018, respectively. This impact was related to sales taxes and franchise fees collected from KCP&L's Missouri customers, which prior to ASC 606, were recorded gross on KCP&L's statements of comprehensive income. See Note 3 for more information on revenue from contracts with customers.

2. MERGER OF GREAT PLAINS ENERGY AND WESTAR ENERGY

Description of Merger Transaction

On June 4, 2018, Evergy completed the mergers contemplated by the Amended Merger Agreement. As a result of the mergers, Great Plains Energy merged into Evergy, with Evergy surviving the merger and King Energy merged into Westar Energy, with Westar Energy surviving the merger. Following the completion of these mergers, Westar Energy and the direct subsidiaries of Great Plains Energy, including KCP&L and GMO, became wholly-owned subsidiaries of Evergy.

The merger was structured as a merger of equals in a tax-free exchange of shares that involved no premium paid or received with respect to either Great Plains Energy or Westar Energy. As a result of the closing of the merger transaction, each outstanding share of Great Plains Energy common stock was converted into 0.5981 shares of Evergy common stock and each outstanding share of Westar Energy common stock was converted into 1 share of Evergy common stock.

As provided in the Amended Merger Agreement, substantially all of Westar Energy's outstanding equity compensation awards vested and were converted into a right to receive Evergy common stock and all of Great Plains Energy's outstanding equity compensation awards were converted into equivalent Evergy awards subject to the same terms and conditions at the Great Plains Energy merger exchange ratio of 0.5981.

Merger Related Regulatory Matters

KCC

In May 2018, the State Corporation Commission of the State of Kansas (KCC) approved Great Plains Energy's, KCP&L's and Westar Energy's joint application for approval of the merger, including a settlement agreement that had been reached between Great Plains Energy, KCP&L, Westar Energy, KCC staff and certain other intervenors in the case. Through the joint application and settlement agreement, Great Plains Energy, KCP&L and Westar Energy agreed to the conditions and obligations listed below, in addition to other organizational, financing, customer service and civic responsibility commitments.

• Provide a total of $30.6 million of one-time bill credits to Kansas electric retail customers as soon as practicable following the close of the merger and the completion of Westar Energy's and KCP&L's current rate cases in Kansas. Of this total, $23.1 million of the credits relate to Westar Energy customers and the remaining $7.5 million of credits relate to KCP&L Kansas customers.

• Provide a total of approximately $46 million in additional bill credits consisting of $11.5 million in annual bill credits to Kansas electric retail customers from 2019 through 2022. Of the annual amount, $8.7 million

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of the credits relate to Westar Energy customers and the remaining $2.8 million of credits relate to KCP&L Kansas customers.

• Provide for the inclusion of a total of $30.0 million of merger-related savings in Westar Energy's and KCP&L's current rate cases in Kansas. Of this total, $22.5 million of the savings are attributable to Westar Energy with the remaining $7.5 million of savings attributable to KCP&L's Kansas jurisdiction.

• A five year base rate moratorium for Westar Energy and KCP&L in Kansas that will commence following the conclusion of KCP&L's current Kansas rate case, expected in December 2018. The moratorium is subject to certain conditions and does not include Westar Energy's or KCP&L's fuel recovery mechanisms and certain other cost recovery mechanisms in Kansas.

• Require both Westar Energy and KCP&L to file rate cases in Kansas in a fashion that would allow for updated electric utility rates to become effective upon the end of the five-year rate moratorium in December 2023.

• Participate in an Earnings Review and Sharing Plan (ERSP) for the years 2019 through 2022, which may result in Westar Energy and/or KCP&L being subject to refunding 50% of earned return on equity in excess of authorized return on equity to their Kansas customers.

• Maintain charitable contributions and community involvement in the Kansas service territories of Westar Energy and KCP&L at levels equal to or greater than their respective 2015 levels for 5 years following the closing of the merger.

• Commit that Westar Energy's and KCP&L's retail electric base rates will not increase as a result of the merger.

• Allow Westar Energy and KCP&L to recover a total of $30.9 million of merger transition costs consisting of $23.2 million for Westar Energy and $7.7 million for KCP&L's Kansas jurisdiction. Westar Energy and KCP&L have recorded these amounts as regulatory assets and the settlement agreement stipulates that they will be recovered over a ten year period.

MPSC

In May 2018, the Public Service Commission of the State of Missouri (MPSC) approved Great Plains Energy's, KCP&L's, GMO's and Westar Energy's joint application for approval of the merger, including two stipulations and agreements between these companies, MPSC staff and certain other intervenors in the case. Through the joint application and stipulations and agreements, Great Plains Energy, KCP&L, GMO and Westar Energy agreed to the conditions and obligations listed below, in addition to other organizational, financing, customer service and civic responsibility commitments.

• Provide a total of $29.1 million of one-time bill credits to Missouri electric retail customers within 120 days following the close of the merger. Of this total, $14.9 million of the credits relate to KCP&L Missouri customers and the remaining $14.2 million of credits relate to GMO customers.

• Commit that KCP&L's and GMO's retail electric base rates will not increase as a result of the merger.

• Maintain charitable contributions and community involvement in the Missouri service territories of KCP&L and GMO at levels equal to or greater than their respective 2015 levels for 5 years following the closing of the merger.

• Provide a total of $3.0 million of support over 10 years to community agencies to promote low-income weatherization efforts.

• Support the recovery of a total of $16.9 million of merger transition costs in KCP&L's and GMO's current rate cases, consisting of $9.7 million for KCP&L's Missouri jurisdiction and $7.2 million for GMO. KCP&L and GMO have recorded these amounts as regulatory assets and it is expected that they will be recovered over a ten year period.

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Accounting Charges and Deferrals Related to the Merger

The following pre-tax reductions of revenue, expenses and deferral were recognized following the consummation of the merger and are included in the Evergy Companies' consolidated statements of income and comprehensive income for year to date September 30, 2018.

Description	Income Statement Line Item	Expected Payment Period	Evergy			Westar Energy			KCP&L
			(millions)
One-time bill credits	Operating revenues	2018 - 2019	$	(59.7	)	$	(23.1	)	$	(22.4	)
Annual bill credits	Operating revenues	2019 - 2022	(7.6		)	(5.8		)	(1.9		)
Total impact to operating revenues			$	(67.3	)	$	(28.9	)	$	(24.3	)
Charitable contributions and community support	Operating and maintenance	2018 - 2027	$	24.7		$	—		$	—
Voluntary severance and accelerated equity compensation	Operating and maintenance	2018 - 2019	40.7			40.7			—
Other transaction and transition costs	Operating and maintenance	2018	47.0			20.4			1.7
Reallocation and deferral of merger transition costs	Operating and maintenance	n/a	(47.8		)	(13.3		)	(23.9		)
Total impact to operating and maintenance expense			$	64.6		$	47.8		$	(22.2	)
Total			$	(131.9	)	$	(76.7	)	$	(2.1	)

Reductions of revenue and expenses related to customer bill credits, charitable contributions and community support were incurred as a result of conditions in the MPSC and KCC merger orders and were recorded as liabilities in the amounts presented above following the consummation of the merger. Voluntary severance and accelerated equity compensation represent costs related to payments for voluntary severance and change in control plans, as well as the recording of unrecognized equity compensation costs and the incremental fair value associated with the vesting of outstanding Westar Energy equity compensation awards. Other transaction and transition costs include merger success fees and fees for other outside services incurred. Reallocation and deferral of merger transition costs represents the net reallocation of incurred merger transition costs between Evergy, Westar Energy, KCP&L and GMO and the subsequent deferral of these transition costs to a regulatory asset for future recovery in accordance with the KCC and MPSC merger orders.

Purchase Price

Based on an evaluation of the provisions of ASC 805, Business Combinations, Westar Energy was determined to be the accounting acquirer in the merger. Pursuant to the Amended Merger Agreement, Great Plains Energy's common stock shares were exchanged for Evergy common stock shares at the fixed exchange rate of 0.5981. The total consideration transferred in the merger is based on the closing stock price of Westar Energy on June 4, 2018 and is calculated as follows.

	(millions, except share amounts)
Great Plains Energy common stock shares outstanding as of June 4, 2018	215,800,074
Great Plains Energy restricted stock awards outstanding as of June 4, 2018	(204,825		)
Great Plains Energy shares to be converted to Evergy shares	215,595,249
Exchange ratio	0.5981
Evergy common stock shares issued to Great Plains Energy shareholders	128,947,518
Closing price of Westar Energy common stock as of June 4, 2018	$	54.00
Fair value of Evergy shares issued to Great Plains Energy shareholders	$	6,963.2
Fair value of Great Plains Energy's equity compensation awards	12.5
Total purchase price	$	6,975.7

32

Great Plains Energy's equity compensation awards, including performance shares and restricted stock, were replaced by equivalent Evergy equity compensation awards subject to substantially the same terms and conditions upon the closing of the merger. In accordance with the accounting guidance in ASC 805, a portion of the fair value of these awards is attributable to the purchase price as it represents consideration transferred in the merger.

Purchase Price Allocation

The fair value of Great Plains Energy's assets acquired and liabilities assumed as of June 4, 2018 was determined based on significant estimates and assumptions that are judgmental in nature. Third-party valuation specialists were engaged to assist in the valuation of these assets and liabilities. The fair values of Great Plains Energy's assets acquired and liabilities assumed utilized for the purchase price allocation are preliminary to the extent that additional information is obtained about facts and circumstances that existed as of the acquisition date.

The significant assets and liabilities for which preliminary valuation amounts are reflected as of the filing of this combined Form 10-Q include the fair value of acquired long-term debt, asset retirement obligations, pension and post-retirement plans, accumulated deferred income tax liabilities and certain other long-term assets and liabilities.

The majority of Great Plains Energy's operations are subject to the rate-setting authority of the MPSC, KCC and The Federal Energy Regulatory Commission (FERC) and are accounted for pursuant to GAAP, including the accounting guidance for regulated operations. The rate-setting and cost recovery provisions for Great Plains Energy's regulated operations provide revenue derived from costs including a return on investment of assets and liabilities included in rate base. Except for the significant assets and liabilities for which valuation adjustments were made as discussed above, the fair values of Great Plains Energy's tangible and intangible assets and liabilities subject to these rate-setting provisions approximate their carrying values and the assets and liabilities do not reflect any adjustments to these amounts other than for amounts not included in rate base. The difference between the fair value and pre-merger carrying amounts for Great Plains Energy's long-term debt, asset retirement obligations and pension and post-retirement plans that were related to regulated operations were recorded as a regulatory asset or liability. The excess of the purchase price over the estimated fair values of the assets acquired and liabilities assumed was recognized as goodwill as of the merger date.

The preliminary purchase price allocation to Great Plains Energy's assets and liabilities as of June 4, 2018 is detailed in the following table.

	(millions)
Current assets	$	2,151.7
Property, plant and equipment, net	9,179.7
Goodwill	2,333.5
Other long-term assets, excluding goodwill	1,235.9
Total assets	$	14,900.8
Current liabilities	1,673.9
Long-term liabilities, excluding long-term debt	2,892.6
Long-term debt, net	3,358.6
Total liabilities	$	7,925.1
Total purchase price	$	6,975.7

Impact of Merger

The impact of Great Plains Energy's subsidiaries on Evergy's revenues in the consolidated statements of income for the three months ended and year to date September 30, 2018 was an increase of $817.6 million and $1,060.2 million, respectively. The impact of Great Plains Energy's subsidiaries on Evergy's net income attributable to Evergy in the consolidated statements of income for the three months ended and year to date September 30, 2018 was an increase of $178.8 million and $239.0 million, respectively.

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Evergy has incurred total merger-related costs, including reductions of revenue for customer bill credits, of $10.3 million and $134.3 million for the three months ended and year to date September 30, 2018, respectively, and $7.9 million and $8.9 million for the three months ended and year to date September 30, 2017, respectively.

Pro Forma Financial Information

The following unaudited pro forma financial information reflects the consolidated results of operations of Evergy as if the merger transactions had taken place on January 1, 2017. The unaudited pro forma information was calculated after applying Evergy's accounting policies and adjusting Great Plains Energy's results to reflect purchase accounting adjustments.

The unaudited pro forma financial information has been presented for illustrative purposes only and is not necessarily indicative of the consolidated results of operations that would have been achieved or the future consolidated results of operations of Evergy.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
	(millions, except per share amounts)
Operating revenues	$	1,582.5	$	1,651.5	$	4,134.8	$	4,086.7
Net income attributable to Evergy, Inc.	360.2		321.8		694.5		543.3
Basic earnings per common share	$	1.34	$	1.19	$	2.56	$	2.00
Diluted earnings per common share	$	1.34	$	1.19	$	2.55	$	2.00

Evergy, Westar Energy and Great Plains Energy incurred non-recurring costs directly related to the merger that have been excluded in the pro forma earnings presented above. After-tax non-recurring merger-related costs incurred by Evergy, Westar Energy and Great Plains Energy were $5.2 million and $73.4 million for the three months ended and year to date September 30, 2018, respectively, and $6.0 million and $9.4 million for the three months ended and year to date September 30, 2017, respectively.

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3. REVENUE

Evergy's, Westar Energy's and KCP&L's revenues disaggregated by customer class are summarized in the following tables.

Three Months Ended September 30, 2018	Evergy		Westar Energy		KCP&L
Revenues	(millions)
Residential	$	647.1	$	270.5	$	243.5
Commercial	530.5		217.4		231.1
Industrial	173.4		111.9		39.1
Other retail	10.9		5.4		2.7
Total electric retail	$	1,361.9	$	605.2	$	516.4
Wholesale	118.5		82.4		29.9
Transmission	80.6		72.2		3.8
Industrial steam and other	6.0		1.5		0.7
Total revenue from contracts with customers	$	1,567.0	$	761.3	$	550.8
Other	15.5		3.5		8.8
Operating revenues	$	1,582.5	$	764.8	$	559.6
Year to Date September 30, 2018	Evergy		Westar Energy		KCP&L(a)
Revenues	(millions)
Residential	$	1,169.4	$	671.9	$	585.4
Commercial	945.0		542.8		609.2
Industrial	375.5		297.2		105.4
Other retail	21.5		15.3		7.7
Total electric retail	$	2,511.4	$	1,527.2	$	1,307.7
Wholesale	302.4		263.7		38.5
Transmission	227.6		216.3		11.0
Industrial steam and other	10.0		4.6		3.0
Total revenue from contracts with customers	$	3,051.4	$	2,011.8	$	1,360.2
Other	24.7		4.1		48.7
Operating revenues	$	3,076.1	$	2,015.9	$	1,408.9

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Retail Revenues

The Evergy Companies' retail revenues are generated by the regulated sale of electricity to their residential, commercial and industrial customers within their franchised service territories. The Evergy Companies recognize revenue on the sale of electricity to their customers over time as the service is provided in the amount they have a right to invoice. Retail customers are billed on a monthly basis at the tariff rates approved by the KCC and MPSC based on customer kWh usage.

Revenues recorded include electric services provided but not yet billed by the Evergy Companies. Unbilled revenues are recorded for kWh usage in the period following the customers' billing cycle to the end of the month. This estimate is based on net system kWh usage less actual billed kWhs. The Evergy Companies' estimated unbilled kWhs are allocated and priced by regulatory jurisdiction across the rate classes based on actual billing rates.

The Evergy Companies also collect sales taxes and franchise fees from customers concurrent with revenue-producing activities that are levied by state and local governments. These items are excluded from revenue, and thus not reflected on the statements of income and comprehensive income, for Evergy, Westar Energy and KCP&L.

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Prior to the adoption of ASC 606, KCP&L recorded sales taxes and franchise fees collected from its Missouri customers gross on KCP&L's statements of comprehensive income within operating revenues and taxes other than income taxes.

Wholesale Revenues

The Evergy Companies' wholesale revenues are generated by the sale of wholesale power and capacity in circumstances when the power that the Evergy Companies generate is not required for customers in their service territory. These sales primarily occur within the SPP Integrated Marketplace. The Evergy Companies also purchase power from the SPP Integrated Marketplace and record sale and purchase activity on a net basis in wholesale revenue or fuel and purchased power expense. In addition, the Evergy Companies sell wholesale power and capacity through bilateral contracts to other counterparties, such as electric cooperatives, municipalities and other electric utilities.

For both wholesale sales to the SPP Integrated Marketplace and through bilateral contracts, the Evergy Companies recognize revenue on the sale of wholesale electricity to their customers over time as the service is provided in the amount they have a right to invoice.

With regards to the SPP Integrated Marketplace, wholesale sales are billed weekly based on the fixed transaction price determined by the market at the time of the sale and the MWh quantity purchased. With regards to bilateral contracts, wholesale sales are billed monthly based on the contractually determined transaction price and the kWh quantity purchased.

Transmission Revenues

The Evergy Companies' transmission revenues are generated by the use of their transmission networks by the SPP, which the Evergy Companies allow the SPP to access and operate on their behalf and the behalf of other SPP participants. As new transmission lines are constructed, they are included in the transmission network available to the SPP. In exchange for providing access, the SPP pays the Evergy Companies consideration determined by formula rates approved by FERC, which include the cost to construct and maintain the transmission lines and a return on investment. The price for access to the Evergy Companies' transmission networks are updated annually based on projected costs. Projections are updated to actual costs and the difference is included in subsequent year's prices.

The Evergy Companies have different treatment for their legacy transmission facilities within the SPP, which results in different levels of transmission revenue being received from the SPP. Westar Energy's transmission revenues from SPP include amounts that Westar Energy pays to the SPP on behalf of its retail electric customers for the use of Westar Energy's legacy transmission facilities. These transmission revenues are mostly offset by SPP network transmission cost expense that Westar Energy pays on behalf of its retail customers. KCP&L and GMO do not pay the SPP for their retail customers’ use of the KCP&L and GMO legacy transmission facilities and correspondingly, their transmission revenues also do not reflect the associated transmission revenue from the SPP.

The Evergy Companies recognize revenue on the sale of transmission service to their customers over time as the service is provided in the amount they have a right to invoice. Transmission service to the SPP is billed monthly based on a fixed transaction price determined by FERC formula transmission rates along with other SPP-specific charges and the MW quantity purchased.

Industrial Steam and Other Revenues

Evergy's industrial steam and other revenues are primarily generated by the regulated sale of industrial steam to GMO's steam customers. Evergy recognizes revenue on the sale of industrial steam to its customers over time as the service is provided in the amount that it has the right to invoice. Steam customers are billed on a monthly basis at the tariff rate approved by the MPSC based on customer MMBtu usage.

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Optional Exemption

Evergy, Westar Energy and KCP&L do not disclose the value of unsatisfied performance obligations on certain bilateral wholesale contracts with an original expected duration of greater than one year for which they recognize revenue in the amount they have the right to invoice.

4. RECEIVABLES

The Evergy Companies' receivables are detailed in the following table.

	September 30				December 31
		2018				2017
Evergy		(millions)
Customer accounts receivable - billed		$	231.7			$	165.4
Customer accounts receivable - unbilled		191.1				76.6
Other receivables		82.4				55.4
Allowance for doubtful accounts		(8.7		)		(6.7		)
Total		$	496.5			$	290.7
Westar Energy
Customer accounts receivable - billed		$	194.0			$	165.4
Customer accounts receivable - unbilled		96.7				76.6
Other receivables		60.7				55.4
Allowance for doubtful accounts		(3.9		)		(6.7		)
Total		$	347.5			$	290.7
KCP&L (a)
Customer accounts receivable - billed		$	25.3			$	1.6
Customer accounts receivable - unbilled		66.6				67.6
Other receivables		14.5				39.3
Allowance for doubtful accounts		(3.5		)		(2.2		)
Total		$	102.9			$	106.3

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Evergy's, Westar Energy's and KCP&L's other receivables at September 30, 2018 and December 31, 2017 consisted primarily of receivables from partners in jointly-owned electric utility plants and wholesale sales receivables. As of September 30, 2018, other receivables for Evergy, Westar Energy and KCP&L included receivables from contracts with customers of $57.7 million, $52.8 million and $1.0 million, respectively.

The Evergy Companies recorded bad debt expense related to contracts with customers as summarized in the following table.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
	(millions)
Evergy	$	4.5	$	2.0	$	10.6	$	5.4
Westar Energy	1.1		2.0		6.2		5.4
KCP&L (a)	3.9		2.8		7.5		6.0

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Sale of Accounts Receivable – KCP&L and GMO

KCP&L and GMO sell all of their retail electric accounts receivable to their wholly-owned subsidiaries, KCP&L Receivables Company and GMO Receivables Company, respectively, which in turn sell an undivided percentage ownership interest in the accounts receivable to Victory Receivables Corporation, an independent outside investor.

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Each of KCP&L Receivables Company's and GMO Receivables Company's sale of the undivided percentage ownership interest in accounts receivable to Victory Receivables Corporation is accounted for as a secured borrowing with accounts receivable pledged as collateral and a corresponding short-term collateralized note payable recognized on the balance sheets.  At September 30, 2018, Evergy's accounts receivable pledged as collateral and the corresponding short-term collateralized note payable were $195.0 million. At September 30, 2018 and December 31, 2017, KCP&L's accounts receivable pledged as collateral and the corresponding short-term collateralized note payable were $130.0 million. KCP&L's receivable sale facility expires in September 2019 and allows for $130.0 million in aggregate outstanding principal amount of borrowings at any time. GMO's receivable sale facility expires in September 2019 and allows for $50.0 million in aggregate outstanding principal amount of borrowings from mid-November through mid-June and then $65.0 million from mid-June through mid-November.

5. RATE MATTERS AND REGULATION

KCC Proceedings

Westar Energy 2018 Transmission Delivery Charge

In March 2018, the KCC issued an order adjusting Westar Energy's retail prices to include updated transmission costs as reflected in the FERC transmission formula rate (TFR). The new prices were effective in April 2018 and are expected to increase Westar Energy's annual retail revenues by $31.5 million.

In August 2018, Westar Energy filed an updated Transmission Delivery Charge (TDC) tariff with the KCC to reflect the reduction in revenue requirement that occurred as a result of the Tax Cuts and Jobs Act. The updated filing requested new prices decreasing Westar Energy's annual retail revenues by approximately $20 million. In October 2018, the KCC issued an order approving the request with the new prices effective October 30, 2018.

Westar Energy 2018 Rate Case Proceedings

In February 2018, Westar Energy filed an application with the KCC to request a two-step change in rates, a decrease to retail revenues of approximately $2 million in September 2018 followed by an increase in retail revenues of approximately $54 million in February 2019, with a return on equity of 9.85% and a rate-making equity ratio of 51.6%. The request reflects costs associated with the completion of the Western Plains Wind Farm, the expiration of wholesale contracts currently reflected in retail prices as offsets to retail cost of service, the expiration of production tax credits from prior wind investments and an updated depreciation study, partially offset by the impact of the Tax Cuts and Jobs Act and a portion of the savings from the merger with Great Plains Energy.

In June 2018, Westar Energy, the KCC staff and several other intervenors in the case reached a non-unanimous stipulation and agreement to settle all outstanding issues in the case. The stipulation and agreement provides for a decrease to retail revenues of $66.0 million, before rebasing property tax expense, with a return on equity of 9.3%, a rate-making equity ratio of 51.46% and does not include a second step revenue requirement change as included in Westar Energy's initial application. The stipulation and agreement also provides for an approximately $16 million increase associated with rebasing property tax expense, an approximately $46 million increase in depreciation expense, allows for the recovery of an approximately $41 million wholesale contract that expires in 2019 through Westar Energy's fuel recovery mechanism and reflects customer benefits related to the impacts of the Tax Cuts and Jobs Act, including a one-time bill credit of approximately $50 million to be provided to customers following the conclusion of the rate case.

In September 2018, the KCC issued an order approving the non-unanimous stipulation and agreement. The rates established by the order took effect on September 27, 2018.

KCP&L 2018 Rate Case Proceedings

In May 2018, KCP&L filed an application with the KCC to request an increase to its retail revenues of $26.2 million before rebasing property tax expense, with a return on equity of 9.85% and a rate-making equity ratio of 49.8%. The request reflects the impact of the Tax Cuts and Jobs Act and increases in infrastructure investment costs. KCP&L also requested an additional $6.7 million increase associated with rebasing property tax expense.

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In October 2018, KCP&L, the KCC staff and other intervenors reached a unanimous settlement agreement to settle all outstanding issues in the case. The settlement agreement provides for a decrease to retail revenues of $10.7 million before rebasing property tax expense, with a return on equity of 9.3%, a rate-making equity ratio of 49.09% and a one-time bill credit of $36.9 million for customer benefits related to the impacts of the Tax Cuts and Jobs Act.

The unanimous settlement agreement is subject to the approval of the KCC. The new rates are expected to go into effect in December 2018.

MPSC Proceedings

KCP&L 2018 Rate Case Proceedings

In January 2018, KCP&L filed an application with the MPSC to request an increase to its retail revenues of $8.9 million before rebasing fuel and purchased power expense, with a return on equity of 9.85% and a rate-making equity ratio of 50.03%. The request reflects the impact of the Tax Cuts and Jobs Act and increases in infrastructure investment costs, transmission related costs and property tax costs. KCP&L also requested an additional $7.5 million increase associated with rebasing fuel and purchased power expense.

In September 2018, KCP&L, MPSC staff and other intervenors in the case reached several non-unanimous stipulations and agreements to settle all outstanding issues in the case. The stipulations and agreements provide for a decrease to retail revenues of $21.1 million and a one-time customer benefit of $38.7 million related to the impact of the Tax Cuts and Jobs Act, which will be offset against existing KCP&L regulatory assets. The final amount of the one-time customer benefit related to the impact of the Tax Cuts and Jobs Act is dependent on the effective date of new rates.

In October 2018, the MPSC issued an order approving the non-unanimous stipulations and agreements. The rates established by the order are expected to take effect no later than December 2018.

GMO 2018 Rate Case Proceedings

In January 2018, GMO filed an application with the MPSC to request a decrease to its retail revenues of $2.4 million before rebasing fuel and purchased power expense, with a return on equity of 9.85% and a rate-making equity ratio of 54.4%. The request reflects the impact of the Tax Cuts and Jobs Act and increases in infrastructure investment costs and transmission related costs. GMO also requested a $21.7 million increase associated with rebasing fuel and purchased power expense.

In September 2018, GMO, MPSC staff and other intervenors in the case reached several non-unanimous stipulations and agreements to settle all outstanding issues in the case. The stipulations and agreements provide for a decrease to retail revenues of $24.0 million and a one-time bill credit of $29.3 million for customer benefits related to the impacts of the Tax Cuts and Jobs Act. The final amount of the one-time customer bill credit related to the impact of the Tax Cuts and Jobs Act is dependent on the effective date of new rates.

In October 2018, the MPSC issued an order approving the non-unanimous stipulations and agreements. The rates established by the order are expected to take effect no later than December 2018.

FERC Proceedings

Westar Energy's TFR, effective in January 2018, includes projected 2018 transmission capital expenditures and operating costs and was expected to increase annual transmission revenues by $25.5 million. Due to the passage of the Tax Cuts and Jobs Act, Westar Energy requested permission from FERC to retroactively reflect the reduction in the federal corporate income tax rate in its 2018 prices. In April 2018, FERC granted the request and Westar Energy has recorded a regulatory liability as of September 30, 2018 of $5.9 million related to this request. It is estimated the revised TFR will increase 2018 revenues by $2.3 million when compared to 2017.

Westar Energy's TFR, effective in January 2019, includes projected 2019 transmission capital expenditures and operating costs and is expected to decrease annual transmission revenues by $11.2 million when compared to 2018.

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6. ASSET RETIREMENT OBLIGATIONS

Asset Retirement Obligations (AROs) associated with tangible long-lived assets are legal obligations that exist under enacted laws, statutes and written or oral contracts, including obligations arising under the doctrine of promissory estoppel. These liabilities are recognized at estimated fair value as incurred with a corresponding amount capitalized as part of the cost of the related long-lived assets and depreciated over their useful lives. Accretion of the liabilities due to the passage of time is recorded to a regulatory asset and/or liability. Changes in the estimated fair values of the liabilities are recognized when known. Evergy, Westar Energy and KCP&L record the current portion of AROs within other current liabilities on their consolidated balance sheets.

Westar Energy, KCP&L and GMO have AROs related to asbestos abatement and the closure and post-closure care of ponds and landfills containing coal combustion residuals (CCRs).In addition, Westar Energy and KCP&L have AROs related to decommissioning Wolf Creek Generating Station (Wolf Creek) and the retirement of wind generation facilities.

Certain of the Evergy Companies' generating stations or other facilities may contain asbestos due to the age of the facilities, but no confirmation or measurement of the total amount of asbestos could be determined as of September 30, 2018. Due to the inability to reasonably estimate the quantities or the amount of disturbance that will be necessary during dismantlement at the end of the life of a plant or facility, the fair value of this ARO cannot be reasonably estimated at this time. Management will continue to monitor the obligation and will recognize a liability in the period in which sufficient information becomes available to reasonably estimate its fair value.

The following table summarizes the change in the Evergy Companies' AROs for the periods ending September 30, 2018 and December 31, 2017.

	Evergy						Westar Energy						KCP&L(a)
	2018			2017			2018			2017			2018			2017
	(millions)
Beginning balance, January 1	$	405.1		$	324.0		$	405.1		$	324.0		$	266.3		$	278.0
Liabilities assumed upon merger with Great Plains Energy	412.2			—			—			—			—			—
Liabilities incurred during the year	7.4			13.5			7.4			13.5			—			—
Revision in timing and/or estimates	(138.6		)	66.8			(133.0		)	66.8			(5.7		)	0.3
Settlements	(15.9		)	(16.0		)	(10.6		)	(16.0		)	(9.9		)	(25.5		)
Accretion	22.1			16.8			14.0			16.8			12.6			13.5
Ending balance	$	692.3		$	405.1		$	282.9		$	405.1		$	263.3		$	266.3
Less: current portion	(69.6		)	(25.1		)	(25.1		)	(25.1		)	(40.6		)	(34.9		)
Total noncurrent asset retirement obligation	$	622.7		$	380.0		$	257.8		$	380.0		$	222.7		$	231.4

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

See Note 2 for more information regarding KCP&L's and GMO's ARO liabilities that Evergy assumed as a result of the merger.

In June 2018, Evergy and Westar Energy recorded a $127.0 million revision in estimate primarily related to Westar Energy's ARO to decommission its 47% ownership share of Wolf Creek.

7. PENSION PLANS AND OTHER EMPLOYEE BENEFITS

Evergy and certain of its subsidiaries maintain, and Westar Energy and KCP&L participate in, qualified non-contributory defined benefit pension plans covering the majority of Westar Energy's and KCP&L's employees as well as certain non-qualified plans covering certain active and retired officers. Evergy is also responsible for its 94% share of Wolf Creek Nuclear Operating Corporation (WCNOC) defined benefit plans, consisting of Westar Energy's and KCP&L's respective 47% shares.

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For the majority of employees, pension benefits under these plans reflect the employees' compensation, years of service and age at retirement. However, for the plan covering Westar Energy's employees, the benefits for non-union employees hired between 2002 and the second quarter of 2018 and union employees hired beginning in 2012 are derived from a cash balance account formula. For the plans covering KCP&L's employees, the benefits for union employees hired beginning in 2014 are derived from a cash balance account formula and the plans were closed to future non-union employees in 2014.

Evergy and its subsidiaries also provide certain post-retirement health care and life insurance benefits for substantially all retired employees of Westar Energy and KCP&L and their respective shares of WCNOC's post-retirement benefit plans.

The Evergy Companies record pension and post-retirement expense in accordance with rate orders from the KCC and MPSC that allow the difference between pension and post-retirement costs under GAAP and costs for ratemaking to be recognized as a regulatory asset or liability.  This difference between financial and regulatory accounting methods is due to timing and will be eliminated over the life of the plans.

The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants.

	Pension Benefits									Post-Retirement Benefits
Three Months Ended September 30, 2018	Evergy			Westar Energy			KCP&L			Evergy			Westar Energy			KCP&L
Components of net periodic benefit costs	(millions)
Service cost	$	20.2		$	8.0		$	9.1		$	0.7		$	0.4		$	0.4
Interest cost	26.3			12.7			9.4			2.5			1.2			0.8
Expected return on plan assets	(27.0		)	(13.9		)	(10.6		)	(2.5		)	(1.8		)	(0.4		)
Amortization of unrecognized:
Prior service cost	0.3			0.2			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	8.1			8.1			8.4			(0.1		)	(0.1		)	—
Net periodic benefit costs before regulatory adjustment	27.9			15.1			16.5			0.7			(0.2		)	0.8
Regulatory adjustment	2.6			2.8			0.7			(0.4		)	(0.4		)	0.1
Net periodic benefit costs	$	30.5		$	17.9		$	17.2		$	0.3		$	(0.6	)	$	0.9
	Pension Benefits									Post-Retirement Benefits
Year to Date September 30, 2018	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	40.4		$	24.1		$	27.4		$	1.5		$	1.0		$	1.1
Interest cost	56.2			38.1			28.3			5.4			3.7			2.5
Expected return on plan assets	(59.3		)	(41.9		)	(31.7		)	(6.2		)	(5.2		)	(1.4		)
Amortization of unrecognized:
Prior service cost	0.6			0.5			0.4			0.3			0.3			—
Recognized net actuarial (gain)/loss	24.4			24.4			25.1			(0.4		)	(0.4		)	(0.1		)
Net periodic benefit costs before regulatory adjustment	62.3			45.2			49.5			0.6			(0.6		)	2.1
Regulatory adjustment	8.4			8.4			2.1			(1.3		)	(1.3		)	(0.2		)
Net periodic benefit costs	$	70.7		$	53.6		$	51.6		$	(0.7	)	$	(1.9	)	$	1.9

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

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	Pension Benefits									Post-Retirement Benefits
Three Months Ended September 30, 2017	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	7.2		$	7.2		$	8.1		$	0.3		$	0.3		$	0.4
Interest cost	13.1			13.1			9.8			1.4			1.4			0.9
Expected return on plan assets	(13.4		)	(13.4		)	(9.5		)	(1.8		)	(1.8		)	(0.4		)
Amortization of unrecognized:
Prior service cost	0.1			0.1			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	6.7			6.7			8.9			(0.2		)	(0.2		)	(0.1		)
Net periodic benefit costs before regulatory adjustment	13.7			13.7			17.5			(0.2		)	(0.2		)	0.8
Regulatory adjustment	3.6			3.6			0.2			(0.4		)	(0.4		)	(0.1		)
Net periodic benefit costs	$	17.3		$	17.3		$	17.7		$	(0.6	)	$	(0.6	)	$	0.7
(a) KCP&L amounts are not included in consolidated Evergy for the three months ended September 30, 2017.
	Pension Benefits									Post-Retirement Benefits
Year to Date September 30, 2017	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	21.5		$	21.5		$	24.4		$	0.9		$	0.9		$	1.1
Interest cost	39.3			39.3			29.4			4.2			4.2			2.8
Expected return on plan assets	(40.2		)	(40.2		)	(28.6		)	(5.2		)	(5.2		)	(1.3		)
Amortization of unrecognized:
Prior service cost	0.5			0.5			0.4			0.3			0.3			—
Recognized net actuarial (gain)/loss	20.2			20.2			26.7			(0.6		)	(0.6		)	(0.3		)
Net periodic benefit costs before regulatory adjustment	41.3			41.3			52.3			(0.4		)	(0.4		)	2.3
Regulatory adjustment	10.6			10.6			4.3			(1.4		)	(1.4		)	0.9
Net periodic benefit costs	$	51.9		$	51.9		$	56.6		$	(1.8	)	$	(1.8	)	$	3.2

^(a) KCP&L amounts are not included in consolidated Evergy for year to date September 30, 2017.

The components of net periodic benefit costs other than the service cost component are included in other expense on the Evergy Companies' consolidated statements of income and comprehensive income.

Year to date September 30, 2018, Evergy, Westar Energy and KCP&L made pension contributions of $53.1 million, $43.1 million and $23.7 million, respectively. Evergy's year to date September 30, 2018 pension contributions consist of Westar Energy's year to date September 30, 2018 contributions and KCP&L's contributions made following the closing of the merger in June 2018.

Evergy expects to make additional pension contributions of $66.3 million in 2018 to satisfy the Employee Retirement Income Security Act of 1974, as amended (ERISA) funding requirements and KCC and MPSC rate orders, of which $4.9 million is expected to be paid by Westar Energy and $61.4 million is expected to be paid by KCP&L. Also in 2018, Evergy and KCP&L expect to make contributions of $4.6 million to the post-retirement benefit plans.

8. EQUITY COMPENSATION

Upon the consummation of the merger, Evergy assumed both Westar Energy's Long-Term Incentive and Share Award plan (LTISA) and Great Plains Energy's Amended Long-Term Incentive Plan, which was renamed the Evergy, Inc. Long-Term Incentive Plan. All outstanding share-based payment awards under Westar Energy's LTISA vested at the closing of the merger transaction and were converted into a right to receive Evergy common stock with the exception of certain RSUs issued prior to the closing of the merger to certain officers and employees of Westar

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Energy. The vesting of these shares resulted in the recognition of $14.6 million of compensation expense in Evergy's and Westar Energy's consolidated statements of income for year to date September 30, 2018.

All of Great Plains Energy's outstanding performance shares, restricted stock, RSUs and director deferred share units under Great Plains Energy's Amended Long-Term Incentive Plan were converted into equivalent Evergy performance shares, restricted stock, RSUs and director deferred share units at Great Plains Energy's merger exchange ratio of 0.5981. The estimated fair value of these converted awards that was allocated to the purchase price was $12.5 million, after-tax. See Note 2 for more information regarding the merger.

The following table summarizes the Evergy Companies' equity compensation expense and the associated income tax (expense) benefit.

	Three Months Ended September 30					Year to Date September 30
	2018			2017		2018			2017
Evergy	(millions)
Equity compensation expense	$	4.3		$	2.1	$	26.0		$	6.7
Income tax (expense) benefit	(1.5		)	0.8		1.9			2.6
Westar Energy
Equity compensation expense	$	2.0		$	2.1	$	22.6		$	6.7
Income tax (expense) benefit	(1.0		)	0.8		2.1			2.6
KCP&L(a)
Equity compensation expense	$	1.6		$	1.2	$	4.8		$	2.9
Income tax (expense) benefit	(0.7		)	0.4		(0.1		)	1.2

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Performance Shares

The vesting of performance shares is contingent upon achievement of specific performance goals over a stated period of time as approved by the Compensation and Leadership Development Committee of the Evergy Board. The number of performance shares ultimately vested can vary from the number of shares initially granted depending on either Great Plains Energy's performance prior to the closing of the merger transaction or Evergy's performance based on the stated performance period of the awards. Compensation expense for performance shares is calculated by recognizing the portion of the grant date fair value for each reporting period for which the requisite service has been rendered. Dividends are accrued over the vesting period and paid in cash based on the number of performance shares ultimately paid.

The fair value of the converted Great Plains Energy performance share awards was estimated using the market value of Westar Energy's and Great Plains Energy's common stock at the valuation date and a Monte Carlo simulation technique that incorporates assumptions for inputs of expected volatilities, dividend yield and risk-free rates. Expected volatility is based on daily stock price change based on historical common stock information during a historical period commensurate with the remaining term of the performance period of the grant. The risk-free rate is based upon the rate at the time of the evaluation for zero-coupon government bonds with a maturity consistent with the remaining performance period of the grant. The dividend yield is based on the most recent dividends paid by Westar Energy, as Evergy's stock price assumes Westar Energy's stock price on a forward basis, and the grant date stock price on the valuation date. For the Great Plains Energy performance shares converted into Evergy awards upon the closing of the merger, inputs for expected volatility, dividend yield, and risk-free rates were 16.6% - 18.5% , 2.96% and 1.8% - 2.6%, respectively. Evergy and Westar Energy did not have any performance share awards issued and outstanding prior to the close of the merger.

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Performance share activity for year to date September 30, 2018 is summarized in the following table.

	Performance Shares			Grant Date Fair Value*
Beginning balance January 1, 2018		—			$	—
Converted Great Plains Energy awards upon merger		351,708			63.79
Forfeited		(3,212	)		63.44
Ending balance September 30, 2018		348,496			63.80

* weighted-average

At September 30, 2018, the remaining weighted-average contractual term was 1.3 years.  There were no shares granted for the three months ended September 30, 2018 and 2017, respectively. The weighted-average grant-date fair value of shares granted was $63.79year to date September 30, 2018. At September 30, 2018, there was $10.6 million of total unrecognized compensation expense, net of forfeiture rates, related to converted Great Plains Energy performance shares granted under its Amended Long-Term Incentive Plan, which will be recognized over the remaining weighted-average contractual term.  

Restricted Stock

Restricted stock cannot be sold or otherwise transferred by the recipient prior to vesting and has a value equal to the fair market value of the shares on the issue date. Restricted stock shares vest over a stated period of time with accruing reinvested dividends subject to the same restrictions. Compensation expense, calculated by multiplying shares by the grant-date fair value related to restricted stock, is recognized on a straight-line basis over the requisite service period of the award. Evergy and Westar Energy did not have any restricted stock awards issued and outstanding prior to the close of the merger.

Restricted stock activity for year to date September 30, 2018 is summarized in the following table.

	Nonvested Restricted Stock			Grant Date Fair Value*
Beginning balance January 1, 2018		—			$	—
Converted Great Plains Energy awards upon merger		122,505			54.05
Vested		(4,222	)		54.50
Forfeited		(1,070	)		54.04
Ending balance September 30, 2018		117,213			54.03

* weighted-average

At September 30, 2018, the remaining weighted-average contractual term was 1.4 years.  There were no shares granted for the three months ended September 30, 2018 and 2017, respectively. The weighted-average grant-date fair value of shares granted was $54.05 year to date September 30, 2018. At September 30, 2018, there was $3.1 million of total unrecognized compensation expense, net of forfeiture rates, related to converted Great Plains Energy restricted stock granted under its Amended Long-Term Incentive Plan, which will be recognized over the remaining weighted-average contractual term. The total fair value of shares vested was $0.2 million for the three months ended and year to date September 30, 2018.

Restricted Share Units

Evergy and Westar Energy have historically used RSUs for their stock-based compensation awards. RSU awards are grants that entitle the holder to receive shares of common stock as the awards vest. These RSU awards are defined as nonvested shares and do not include restrictions once the awards have vested. These RSUs have either taken the form of RSUs with only service requirements that vest solely upon the passage of time or RSUs with performance measures that vest upon expiration of the award term. All issued and outstanding Evergy and Westar Energy RSU awards with performance measures vested in connection with the closing of the merger transaction in June 2018.

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Evergy measures the fair value of RSUs with only service requirements based on the fair market value of the underlying common stock as of the grant date. RSU awards with only service conditions recognize compensation expense by multiplying shares by the grant-date fair value related to the RSU and recognizing it on a straight-line basis over the requisite service period for the entire award, including for those RSUs that have a graded vesting schedule. Nonforfeitable dividend equivalents, or the rights to receive cash equal to the value of dividends paid on Evergy's common stock, are paid on certain of these RSUs during the vesting period. Nonforfeitable dividends equivalents are recorded directly to retained earnings.

RSU activity for awards with only service requirements for year to date September 30, 2018 is summarized in the following table.

	Nonvested Restricted Share Units			Grant Date Fair Value*
Beginning balance January 1, 2018		255,964			$	46.09
Granted		222,465			52.16
Converted Great Plains Energy awards upon merger		82,331			53.77
Vested		(342,599	)		46.81
Forfeited		(905	)		50.73
Ending balance September 30, 2018		217,256			54.07

* weighted-average

At September 30, 2018, the remaining weighted-average contractual term related to RSU awards with only service requirements was 1.7 years.  There were no RSUs granted for the three months ended September 30, 2018 and 2017, respectively. The weighted-average grant-date fair value of RSUs granted with only service requirements was $52.16 and $53.25 year to date September 30, 2018, and 2017, respectively. At September 30, 2018, there was $9.5 million of unrecognized compensation expense related to unvested RSUs. There were no RSUs with only service requirements that vested for the three months ended September 30, 2018. The total fair value of RSUs with only service requirements that vested year to date September 30, 2018 was $16.0 million. The total fair value of RSUs with only service requirements that vested for the three months ended and year to date September 30, 2017 was $0.2 million and $3.8 million, respectively.

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9. SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT

In September 2018, Evergy entered into a $2.5 billion master credit facility which expires in 2023. Evergy, Westar Energy, KCP&L and GMO have borrowing capacity under the master credit facility with specific sublimits for each borrower. These sublimits can be unilaterally adjusted by Evergy for each borrower provided the sublimits remain within minimum and maximum sublimits as specified in the facility. A default by any borrower under the facility or one of their significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default under the facility. Under the terms of this facility, each of Evergy, Westar Energy, KCP&L and GMO is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times. As of September 30, 2018, Evergy, Westar Energy, KCP&L and GMO were in compliance with this covenant.

In connection with the entry into the master credit facility, each of Evergy (as successor to Great Plains Energy), Westar Energy, KCP&L and GMO terminated its existing credit facilities in September 2018.

The following table summarizes the committed credit facilities (excluding receivable sale facilities) available to the Evergy Companies as of September 30, 2018 and December 31, 2017.

			Amounts Drawn
	Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
September 30, 2018	(millions)
Evergy, Inc.	$	450.0	n/a		$	1.0	$	—	$	449.0	—%
Westar Energy	1,000.0		326.3		18.3		—		655.4		2.42%
KCP&L	600.0		209.2		2.7		—		388.1		2.50%
GMO	450.0		140.4		2.1		—		307.5		2.46%
Evergy	$	2,500.0	$	675.9	$	24.1	$	—	$	1,800.0
December 31, 2017
Westar Energy(b)	$	979.3	$	275.7	$	11.8	$	—	$	691.8	1.83%
KCP&L(a)	600.0		167.5		2.7		—		429.8		1.95%
Evergy	979.3		275.7		11.8		—		691.8		1.83%

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

^(b) $20.7 million of Westar Energy's $730.0 million and $270.0 million revolving credit facilities expired in September 2017.

10. LONG-TERM DEBT

As of September 30, 2018, Evergy's outstanding long-term debt, including current maturities, includes $3,659.7 million related to KCP&L, GMO and the assumed long-term debt of Great Plains Energy discussed further below. This amount also includes $153.0 million of fair value adjustments recorded in connection with purchase accounting for the merger transaction, which are not part of future principal payments and will amortize over the remaining life of the associated debt instruments. See Note 2 for more information regarding the merger transaction. The series of long-term debt obligations originally issued by Great Plains Energy and assumed by Evergy, Inc. as part of the merger transaction were:

• $350.0 million of 4.85% unsecured Senior Notes; and

• $287.5 million of 5.292% unsecured Senior Notes.

KCP&L Senior Notes

In March 2018, KCP&L issued, at a discount, $300.0 million of 4.20% unsecured Senior Notes, maturing in 2048. KCP&L also repaid its $350.0 million of 6.375% unsecured Senior Notes at maturity in March 2018.

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KCP&L EIRR Bond Remarketing

In July 2018, KCP&L remarketed its unsecured Series 2008 Environmental Improvement Revenue Refunding (EIRR) bonds maturing in 2038 totaling $23.4 million at a fixed rate of 2.75% through June 30, 2022.

GMO Senior Notes

As a result of the consummation of the merger transaction, a change in control provision in GMO's Series A, B and C Senior Notes was triggered that allowed holders a one-time option to elect for early repayment of their notes at par value, plus accrued interest. Several holders of GMO's Series A and B Senior Notes elected this option and in July 2018, GMO redeemed $89.0 million of its Series A Senior Notes and $15.0 million of its Series B Senior Notes.

11. FAIR VALUE MEASUREMENTS

Values of Financial Instruments

GAAP establishes a hierarchical framework for disclosing the transparency of the inputs utilized in measuring assets and liabilities at fair value. Management's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy levels. In addition, the Evergy Companies measure certain investments that do not have a readily determinable fair value at net asset value (NAV), which are not included in the fair value hierarchy. Further explanation of these levels and NAV is summarized below.

Level 1 – Quoted prices are available in active markets for identical assets or liabilities. The types of assets and liabilities include in Level 1 are highly liquid and actively traded instruments with quoted prices, such as equities listed on public exchanges.

Level 2 –  Pricing inputs are not quoted prices in active markets, but are either directly or indirectly observable. The types of assets and liabilities included in Level 2 are certain marketable debt securities, financial instruments traded in less than active markets or other financial instruments priced with models using highly observable inputs.

Level 3 – Significant inputs to pricing have little or no transparency. The types of assets and liabilities included in Level 3 are those with inputs requiring significant management judgment or estimation.

NAV - Investments that do not have a readily determinable fair value are measured at NAV. These investments do not consider the observability of inputs and, therefore, they are not included within the fair value hierarchy. The Evergy Companies include in this category investments in private equity, real estate and alternative investment funds that do not have a readily determinable fair value. The underlying alternative investments include collateralized debt obligations, mezzanine debt and a variety of other investments.

The Evergy Companies record cash and cash equivalents, accounts receivable and short-term borrowings on their consolidated balance sheets at cost, which approximates fair value due to the short-term nature of these instruments.

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The Evergy Companies measure the fair value of long-term debt using Level 2 measurements available as of the measurement date. The book value and fair value of the Evergy Companies' long-term debt and long-term debt of variable interest entities is summarized in the following table.

	September 30, 2018				December 31, 2017
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt(a)	(millions)
Evergy(b)	$	7,349.4	$	7,362.2	$	3,687.6	$	4,010.6
Westar Energy	3,689.7		3,750.8		3,687.6		4,010.6
KCP&L(c)	2,529.9		2,611.3		2,582.2		2,799.1
Long-term debt of variable interest entities(a)
Evergy	$	81.4	$	80.7	$	109.9	$	110.8
Westar Energy	81.4		80.7		109.9		110.8

^(a) Includes current maturities.

^(b) Book value as of September 30, 2018 includes $153.0 million of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Westar Energy merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument. See Note 2 for more information regarding the merger transaction.

^(c) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

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Recurring Fair Value Measurements

The following tables include the Evergy Companies' balances of financial assets and liabilities measured at fair value on a recurring basis.

Description	September 30 2018			Level 1		Level 2			Level 3			NAV
Westar Energy		(millions)
Assets
Nuclear decommissioning trust(a)
Domestic equity funds		$	80.9	$	74.7		$	—		$	—		$	6.2
International equity funds		42.3		42.3			—			—			—
Core bond fund		36.8		36.8			—			—			—
High-yield bond fund		20.1		20.1			—			—			—
Emerging markets bond fund		15.5		15.5			—			—			—
Combination debt/equity/other fund		14.8		14.8			—			—			—
Alternative investments fund		23.6		—			—			—			23.6
Real estate securities fund		11.5		—			—			—			11.5
Cash equivalents		0.3		0.3			—			—			—
Total nuclear decommissioning trust		245.8		204.5			—			—			41.3
Rabbi trust
Core bond fund		24.9		—			—			—			24.9
Combination debt/equity/other fund		6.2		—			—			—			6.2
Cash equivalents		0.1		0.1			—			—			—
Total rabbi trust		31.2		0.1			—			—			31.1
Total		$	277.0	$	204.6		$	—		$	—		$	72.4
KCP&L
Assets
Nuclear decommissioning trust(a)
Equity securities		$	195.2	$	195.2		$	—		$	—		$	—
Debt securities
U.S. Treasury		39.5		39.5			—			—			—
U.S. Agency		0.4		—			0.4			—			—
State and local obligations		2.1		—			2.1			—			—
Corporate bonds		32.3		—			32.3			—			—
Foreign governments		0.1		—			0.1			—			—
Cash equivalents		1.5		1.5			—			—			—
Other		1.1		1.1			—			—			—
Total nuclear decommissioning trust		272.2		237.3			34.9			—			—
Self-insured health plan trust(b)
Equity securities		0.5		0.5			—			—			—
Debt securities		3.1		0.3			2.8			—			—
Cash and cash equivalents		9.4		9.4			—			—			—
Total self-insured health plan trust		13.0		10.2			2.8			—			—
Total		$	285.2	$	247.5		$	37.7		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.5	$	—		$	—		$	—		$	13.5
Total rabbi trusts		$	13.5	$	—		$	—		$	—		$	13.5
Evergy
Assets
Nuclear decommissioning trust (a)		$	518.0	$	441.8		$	34.9		$	—		$	41.3
Rabbi trusts		44.7		0.1			—			—			44.6
Self-insured health plan trust (b)		13.0		10.2			2.8			—			—
Total		$	575.7	$	452.1		$	37.7		$	—		$	85.9

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Description	December 31 2017			Level 1			Level 2			Level 3			NAV
Westar Energy		(millions)
Assets
Nuclear decommissioning trust(a)(c)
Domestic equity funds		$	73.8		$	—		$	68.7		$	—		$	5.1
International equity funds		47.9			—			47.9			—			—
Core bond fund		33.3			—			33.3			—			—
High-yield bond fund		18.1			—			18.1			—			—
Emerging markets bond fund		17.3			—			17.3			—			—
Combination debt/equity/other fund		14.1			—			14.1			—			—
Alternative investments fund		21.7			—			—			—			21.7
Real estate securities fund		10.8			—			—			—			10.8
Cash equivalents		0.1			0.1			—			—			—
Total nuclear decommissioning trust		237.1			0.1			199.4			—			37.6
Rabbi trust(c)
Core bond fund		27.3			—			27.3			—			—
Combination debt/equity/other fund		6.8			—			6.8			—			—
Cash equivalents		0.2			0.2			—			—			—
Total rabbi trust		34.3			0.2			34.1			—			—
Total		$	271.4		$	0.3		$	233.5		$	—		$	37.6
KCP&L(d)
Assets
Nuclear decommissioning trust (a)
Equity securities		$	183.8		$	183.8		$	—		$	—		$	—
Debt securities
U.S. Treasury		35.3			35.3			—			—			—
U.S. Agency		0.4			—			0.4			—			—
State and local obligations		2.1			—			2.1			—			—
Corporate bonds		34.1			—			34.1			—			—
Foreign governments		0.1			—			0.1			—			—
Cash equivalents		2.5			2.5			—			—			—
Other		0.1			0.1			—			—			—
Total nuclear decommissioning trust		258.4			221.7			36.7			—			—
Self-insured health plan trust(b)
Equity securities		0.5			0.5			—			—			—
Debt securities		2.7			0.3			2.4			—			—
Cash and cash equivalents		7.7			7.7			—			—			—
Total self-insured health plan trust		10.9			8.5			2.4			—			—
Total		$	269.3		$	230.2		$	39.1		$	—		$	—
Evergy
Assets
Nuclear decommissioning trust(a)(c)		$	237.1		$	0.1		$	199.4		$	—		$	37.6
Rabbi trust(c)		34.3			0.2			34.1			—			—
Total		$	271.4		$	0.3		$	233.5		$	—		$	37.6

^(a)  Fair value is based on quoted market prices of the investments held by the trust and/or valuation models.  

^(b)  Fair value is based on quoted market prices of the investments held by the trust. Debt securities classified as Level 1 are comprised of U.S. Treasury securities. Debt securities classified as Level 2 are comprised of corporate bonds, U.S. Agency, state and local obligations, and other asset-backed securities.

^(c)  In the second quarter of 2018, Evergy and Westar Energy re-evaluated the classification, within the fair value hierarchy, of their various fund investments within both Westar Energy's nuclear decommissioning trust and rabbi trusts. As a result, Evergy and Westar Energy determined that certain fund investments within the nuclear decommissioning trust in the amount of $199.4 million as of December 31, 2017, should have been classified as Level 1, instead of Level 2. This determination is based on the fact that the fair value of these funds is based on daily published prices at which Evergy and Westar Energy are able to redeem their investments without restriction on a daily basis. Evergy and Westar Energy also determined that certain fund investments within their rabbi trusts in the amount of $34.1 million as of December 31, 2017, should have been measured using the NAV per share (or its equivalent) practical expedient, instead of as a Level 2 investment. This determination is based on the fact that these funds do not meet the definition of readily determinable fair value due to the absence of a published NAV. Evergy and Westar Energy have determined that these errors are immaterial to their current and previously filed financial reports and accordingly, have not revised prior periods but have reflected the changes in fair value hierarchy classification as of September 30, 2018.

^(d)  KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

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Certain Evergy and Westar Energy investments included in the table above are measured at NAV as they do not have readily determinable fair values. In certain situations, these investments may have redemption restrictions.

The following table provides additional information on these Evergy and Westar Energy investments.

	September 30, 2018				December 31, 2017				September 30, 2018
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Westar Energy	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	6.2	$	4.8	$	5.1	$	2.8	(a)	(a)
Alternative investments fund(b)	23.6		—		21.7		—		Quarterly	65 days
Real estate securities fund(b)	11.5		—		10.8		—		Quarterly	65 days
Total	$	41.3	$	4.8	$	37.6	$	2.8
Rabbi trust:
Core bond fund	$	24.9	$	—	$	—	$	—	(c)	(c)
Combination debt/equity/other fund	6.2		—		—		—		(c)	(c)
Total	$	31.1	$	—	$	—	$	—
Other Evergy
Rabbi trusts:
Fixed income fund(d)	$	13.5	$	—	$	—	$	—	(c)	(c)
Total Evergy investments at NAV	$	85.9	$	4.8	$	37.6	$	2.8

^(a)  This investment is in five long-term private equity funds that do not permit early withdrawal. Investments in these funds cannot be distributed until the underlying investments have been liquidated, which may take years from the date of initial liquidation. Three funds have begun to make distributions. The initial investment in the fourth and fifth fund occurred in the second quarter of 2016 and first quarter of 2018, respectively. The fourth fund's term is 15 years, subject to the general partner's right to extend the the term for up to three additional one-year periods.  The fifth fund's term will be 15 years after the initial closing date, subject to additional extensions approved by the Advisory Committee to provide for an orderly liquidation of fund investments and dissolution of the fund.

^(b)  There is a holdback on final redemptions.

^(c)  This investment can be redeemed immediately and is not subject to any restrictions on redemptions.

^(d)  This investment is recorded at GMO. GMO amounts are not included in consolidated Evergy as of December 31, 2017.

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The Evergy Companies hold equity and debt investments classified as securities in various trusts including for the purposes of funding the decommissioning of Wolf Creek and for the benefit of certain retired executive officers of Westar Energy. The Evergy Companies record net realized and unrealized gains and losses on the nuclear decommissioning trusts in regulatory liabilities on their consolidated balance sheets and record net realized and unrealized gains and losses on Westar Energy's rabbi trust in the consolidated statements of income.

The following table summarizes the net unrealized gains (losses) for the Evergy Companies' nuclear decommissioning trusts and rabbi trusts.

	Three Months Ended September 30					Year to Date September 30
	2018			2017		2018			2017
Westar Energy	(millions)
Nuclear decommissioning trust - equity securities	$	6.5		$	7.7	$	(6.4	)	$	22.2
Rabbi trust	3.7			16.5		3.2			19.0
Total	$	10.2		$	24.2	$	(3.2	)	$	41.2
KCP&L(a)
Nuclear decommissioning trust - equity securities	$	8.6		$	6.9	$	9.1		$	17.8
Nuclear decommissioning trust - debt securities	(0.5		)	—		(2.8		)	0.7
Total	$	8.1		$	6.9	$	6.3		$	18.5
Evergy
Nuclear decommissioning trust - equity securities	$	15.1		$	7.7	$	1.1		$	22.2
Nuclear decommissioning trust - debt securities	(0.5		)	—		(0.8		)	—
Rabbi trusts	3.7			16.5		3.1			19.0
Total	$	18.3		$	24.2	$	3.4		$	41.2

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the merger, June 4, 2018 through September 30, 2018.

12. COMMITMENTS AND CONTINGENCIES

Contractual Commitments

For information regarding long-term contractual commitments, including fuel and purchased power commitments, see Note 14 of the Westar Energy 2017 Form 10-K and Note 15 of the Great Plains Energy and KCP&L combined 2017 Form 10-K.

Environmental Matters

Set forth below are descriptions of contingencies related to environmental matters that may impact the Evergy Companies or their financial results. Management's assessment of these contingencies, which are based on federal and state statutes and regulations, and regulatory agency and judicial interpretations and actions, has evolved over time. There are a variety of final and proposed laws and regulations that could have a material adverse effect on the Evergy Companies operations and consolidated financial results. Due in part to the complex nature of environmental laws and regulations, the Evergy Companies are unable to assess the impact of potential changes that may develop with respect to the environmental contingencies described below.

Cross-State Air Pollution Update Rule

In September 2016, the Environmental Protection Agency (EPA) finalized the Cross-State Air Pollution Update Rule. The final rule addresses interstate transport of nitrogen oxides emissions in 22 states including Kansas, Missouri and Oklahoma during the ozone season and the impact from the formation of ozone on downwind states with respect to the 2008 ozone National Ambient Air Quality Standards (NAAQS). Starting with the 2017 ozone season, the final rule revised the existing ozone season allowance budgets for Missouri and Oklahoma and established an ozone season budget for Kansas. In June 2018, the EPA proposed that the Cross-State Air Pollution Update Rule satisfied the "Good Neighbor" obligations for the 2008 ozone NAAQS and therefore the EPA is proposing no additional reduction in the current ozone season allowance budgets. Various states and others are

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challenging the Cross-State Air Pollution Update Rule in the U.S. Court of Appeals for the D.C. Circuit (D.C. Circuit) but the rule remains in effect. It is not expected that this rule will have a material impact on the Evergy Companies' operations and consolidated financial results.

National Ambient Air Quality Standards

Under the Clean Air Act Amendments of 1990 (Clean Air Act), the EPA sets NAAQS for certain emissions known as the “criteria pollutants” considered harmful to public health and the environment, including two classes of particulate matter (PM), ozone, nitrogen dioxide (NO₂) (a precursor to ozone), carbon monoxide and sulfur dioxide (SO₂), which result from fossil fuel combustion. Areas meeting the NAAQS are designated attainment areas while those that do not meet the NAAQS are considered nonattainment areas. Each state must develop a plan to bring nonattainment areas into compliance with the NAAQS. NAAQS must be reviewed by the EPA at five-year intervals.

In October 2015, the EPA strengthened the ozone NAAQS by lowering the standards from 75 ppb to 70 ppb. In September 2016, the Kansas Department of Health & Environment (KDHE) recommended to the EPA that they designate eight counties in the state of Kansas as in attainment with the standard, and each remaining county in Kansas as attainment/unclassifiable. Also, in September 2016, the Missouri Department of Natural Resources (MDNR) recommended to the EPA that they designate all Missouri counties in KCP&L's and GMO's service territories as attainment/unclassifiable. In November 2017, the EPA designated all counties in the State of Kansas as well as the Missouri counties in KCP&L's and GMO's service territories as attainment/unclassifiable. It is not expected that this will have a material impact on the Evergy Companies' consolidated financial results.

In December 2012, the EPA strengthened an existing NAAQS for one class of PM. In December 2014, the EPA designated the entire state of Kansas and those portions of Missouri served by KCP&L and GMO as attainment/unclassifiable with the standard. It is not expected that this will have a material impact on the Evergy Companies' operations or consolidated financial results.

The Evergy Companies continue to communicate with their regulatory agencies regarding these standards and evaluate what impact the revised NAAQS could have on their operations and consolidated financial results. If areas surrounding the Evergy Companies' facilities are designated in the future as nonattainment and/or it is required to install additional equipment to control emissions at facilities of the Evergy Companies, it could have a material impact on the operations and consolidated financial results of the Evergy Companies.

Greenhouse Gases

Burning coal and other fossil fuels releases carbon dioxide (CO₂) and other gases referred to as greenhouse gases (GHG).  Various regulations under the federal Clean Air Act limit CO₂ and other GHG emissions, and in addition, other measures are being imposed or offered by individual states, municipalities and regional agreements with the goal of reducing GHG emissions.

In October 2015, the EPA published a rule establishing new source performance standards (NSPS) for GHGs that limit CO₂ emissions for new, modified and reconstructed coal and natural gas fueled electric generating units to various levels per MWh depending on various characteristics of the units. Legal challenges to the GHG NSPS have been filed in the D.C. Circuit by various states and industry members. Also in October 2015, the EPA published a rule establishing guidelines for states to regulate CO₂ emissions from existing power plants. The standards for existing plants are known as the Clean Power Plan (CPP). Under the CPP, interim emissions performance rates must be achieved beginning in 2022 and final emissions performance rates must be achieved by 2030. Legal challenges to the CPP were filed by groups of states and industry members, including Westar Energy, in the D.C. Circuit. The CPP was stayed by the Supreme Court in February 2016 and, accordingly, is not currently being implemented by the states.

In April 2017, the EPA published in the Federal Register a notice of withdrawal of the proposed CPP federal plan, proposed model trading rules and proposed Clean Energy Incentive Program design details. Also in April 2017, the EPA published a notice in the Federal Register that it was initiating administrative reviews of the CPP and the GHG NSPS.

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In October 2017, the EPA issued a proposed rule to repeal the CPP. The proposed rule indicates the CPP exceeds EPA’s authority and the EPA has not determined whether they will issue a replacement rule. The EPA solicited comments on the legal interpretations contained in this rulemaking.

In December 2017, the EPA issued an advance notice of proposed rulemaking to solicit feedback on specific areas of the CPP that could be changed.

In August 2018, the EPA published in the Federal Register proposed regulations which contained (1) emission guidelines for GHG emissions from existing electric utility generating units (EGUs), (2) revisions to emission guideline implementing regulations and (3) revisions to the new source review (NSR) program. The proposed emission guidelines are better known as the Affordable Clean Energy (ACE) Rule. The ACE Rule would establish emission guidelines for states to use in the development of plans to reduce GHG emissions from existing coal-fired EGUs. The ACE Rule is also the replacement rule for the CPP. The ACE rule proposes to determine the “best system of emission reduction” for GHG emissions from existing coal-fired EGUs as on-site, heat-rate efficiency improvements. The proposed rule also provides states with a list of candidate technologies that can be used to establish standards of performance and incorporate these performance standards into state plans. In order for the states to be able to effectively implement the proposed emission guidelines contained in the ACE Rule, the EPA is proposing new regulations under 111(d) of the Clean Air Act to help clarify this process. In addition, the EPA is proposing revisions to the NSR program that will reduce the likelihood of triggering NSR for proposed heat-rate efficiency improvement projects at existing coal-fired EGUs. The EPA accepted comments on these three proposed regulatory changes until October 31, 2018.

Due to the future uncertainty of the CPP and ACE rules, the Evergy Companies cannot determine the impact on their operations or consolidated financial results, but the cost to comply with the CPP, should it be upheld and implemented in its current or a substantially similar form, or ACE in its current or a substantially similar form, could be material.

Water

The Evergy Companies discharge some of the water used in generation and other operations. This water may contain substances deemed to be pollutants. Revised rules governing such discharges from coal-fired power plants were issued in November 2015. The final rule establishes effluent limitations guidelines (ELG) and standards for wastewater discharges, including limits on the amount of toxic metals and other pollutants that can be discharged. Implementation timelines for these requirements vary from 2018 to 2023. In April 2017, the EPA announced it is reconsidering the ELG rule and court challenges have been placed in abeyance pending the EPA's review. In September 2017, the EPA finalized a rule to postpone the compliance dates for the new, more stringent, effluent limitations and pretreatment standards for bottom ash transport water and flue gas desulfurization wastewater. These compliance dates have been postponed for two years while the EPA completes its administrative reconsideration of the ELG rule. The Evergy Companies are evaluating the final rule and related developments and cannot predict the resulting impact on their operations or consolidated financial results, but believe costs to comply could be material if the rule is implemented in its current or substantially similar form.

In October 2014, the EPA's final standards for cooling intake structures at power plants to protect aquatic life took effect. The standards, based on Section 316(b) of the federal Clean Water Act (CWA), require subject facilities to choose among seven best available technology options to reduce fish impingement. In addition, some facilities must conduct studies to assist permitting authorities to determine whether and what site-specific controls, if any, would be required to reduce entrainment of aquatic organisms. The Evergy Companies' current analysis indicates this rule will not have a significant impact on their coal plants that employ cooling towers or cooling lakes that can be classified as closed cycle cooling and do not expect the impact from this rule to be material. Plants without closed cycle cooling are under evaluation for compliance with these standards and may require additional controls that could be material.

KCP&L holds a permit from MDNR covering water discharge from its Hawthorn Station.  The permit authorizes KCP&L to, among other things, withdraw water from the Missouri River for cooling purposes and return the heated water to the Missouri River.  KCP&L has applied for a renewal of this permit and the EPA has submitted an interim

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objection letter regarding the allowable amount of heat that can be contained in the returned water.  Until this matter is resolved, KCP&L continues to operate under its current permit. Evergy and KCP&L cannot predict the outcome of this matter; however, while less significant outcomes are possible, this matter may require a reduction in generation, installation of cooling towers or other technology to cool the water, or both, any of which could have a material impact on Evergy's and KCP&L's operations and consolidated financial results.  

In June 2015, the EPA along with the U.S. Army Corps of Engineers issued a final rule, effective August 2015, defining the Waters of the United States (WOTUS) for purposes of the CWA. This rulemaking has the potential to impact all programs under the CWA. Expansion of regulated waterways is possible under the rule depending on regulating authority interpretation, which could impact several permitting programs. Various states and others have filed lawsuits challenging the WOTUS rule. In February 2018, the EPA and the U.S. Army Corps of Engineers finalized a rule adding an applicability date to the 2015 rule, which makes the implementation date of the rule February 2020. In July 2017, the EPA and the U.S. Army Corps of Engineers published in the Federal Register a proposed rule that would, if implemented, reinstate the definition of WOTUS that existed prior to the June 2015 expansion of the definition. Final action on the proposed rule is expected in 2018 as it is currently at the Office of Management and Budget for inter-agency review. The Evergy Companies are currently evaluating the WOTUS rule and related developments but do not believe the rule, if upheld and implemented in its current or substantially similar form, will have a material impact on the Evergy Companies' operations or consolidated financial results.

Regulation of Coal Combustion Residuals

In the course of operating their coal generation plants, the Evergy Companies produce CCRs, including fly ash, gypsum and bottom ash. Some of this ash production is recycled, principally by selling to the aggregate industry. The EPA published a rule to regulate CCRs in April 2015, which will require additional CCR handling, processing and storage equipment and closure of certain ash disposal units. The Water Infrastructure Improvements for the Nation (WIIN) Act allows states to achieve delegated authority for CCR rules from the EPA. This has the potential to impact compliance options. In July 2018, the KDHE submitted a CCR permit program application to the EPA under authority of the WIIN Act. Final action on the application by the EPA is expected to occur within one year from the application date. MDNR is working on a rule revision which will allow the state to apply for authority over the federal CCR regulation. The application is expected to be submitted to the EPA in early 2019. Similar to the process in Kansas, this would allow Missouri state regulators to gain control of the CCR program. It will take up to one year from submittal of the Missouri application for EPA to take final action and grant authority to the state.

On July 30, 2018, the EPA published in the Federal Register a final rule called the Phase I CCR Remand Rule in order to modify portions of the 2015 rulemaking. The Phase I rule provides a timeline extension for unlined impoundments and landfills that must close due to groundwater impacts or location restrictions. The rule also sets risk-based limits for certain groundwater constituents where a maximum contaminant level did not previously exist. These rule modifications add flexibility when assessing compliance.

On August 21, 2018, the D.C. Circuit court issued a ruling in the CCR rule litigation between the Utility Solid Waste Activities Group, the EPA and environmental organizations. Portions of the rule were vacated and were remanded back to EPA for potential modification. Potential revisions to remanded sections could force all unlined surface impoundments to close regardless of groundwater conditions. Any changes to the rule based on this court decision will require additional rulemaking from the EPA.

The Evergy Companies have recorded AROs for their current estimates for the closure of ash disposal ponds but the revision of these AROs may be required in the future due to changes in existing CCR regulations, changes in interpretation of existing CCR regulations, the results of groundwater monitoring of CCR units, or changes in the timing or cost to close ash disposal ponds. If revisions to these AROs are necessary, the impact on the Evergy Companies' operations or consolidated financial results could be material.

Storage of Spent Nuclear Fuel

Under the Nuclear Waste Policy Act of 1982, the Department of Energy (DOE) is responsible for the permanent disposal of spent nuclear fuel. In 2010, the DOE filed a motion with the Nuclear Regulatory Commission (NRC) to

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withdraw its then pending application to construct a national repository for the disposal of spent nuclear fuel and high-level radioactive waste at Yucca Mountain, Nevada. An NRC board denied the DOE's motion to withdraw its application and the DOE appealed that decision to the full NRC. In 2011, the NRC issued an evenly split decision on the appeal and also ordered the licensing board to close out its work on the DOE's application by the end of 2011 due to a lack of funding. These agency actions prompted the states of Washington and South Carolina, and a county in South Carolina, to file a lawsuit in a federal Court of Appeals asking the court to compel the NRC to resume its license review and to issue a decision on the license application. In August 2013, the court ordered the NRC to resume its review of the DOE's application. The NRC has not yet issued its decision.

Wolf Creek has elected to build a dry cask storage facility to expand its existing on-site spent nuclear fuel storage, which is expected to provide additional capacity prior to 2025. Wolf Creek has finalized a settlement agreement through 2019 with the DOE for reimbursement of costs to construct this facility that would not have otherwise been incurred had the DOE begun accepting spent nuclear fuel. The Evergy Companies expect the majority of the remaining cost to construct the dry cask storage facility that would not have otherwise been incurred will be reimbursed by the DOE. The Evergy Companies cannot predict when, or if, an off-site storage site or alternative disposal site will be available to receive Wolf Creek's spent nuclear fuel and will continue to monitor this activity.

13. GUARANTEES

In the ordinary course of business, Evergy and certain of its subsidiaries enter into various agreements providing financial or performance assurance to third parties on behalf of certain subsidiaries. Such agreements include, for example, guarantees and letters of credit. These agreements are entered into primarily to support or enhance the creditworthiness otherwise attributed to a subsidiary on a stand-alone basis, thereby facilitating the extension of sufficient credit to accomplish the subsidiary's intended business purposes. The majority of these agreements guarantee the company's own future performance, so a liability for the fair value of the obligation is not recorded. In connection with the merger transaction, Evergy assumed the guarantees previously provided to GMO by Great Plains Energy.

At September 30, 2018, Evergy has provided $111.3 million of credit support for GMO as follows:

• Evergy direct guarantees to GMO counterparties totaling $17.0 million, which expire in 2020, and

• Evergy's guarantee of GMO long-term debt totaling $94.3 million, which includes debt with maturity dates ranging from 2019 to 2023.

Evergy has also guaranteed GMO's commercial paper program. At September 30, 2018, GMO had $140.4 million of commercial paper outstanding.

14. RELATED PARTY TRANSACTIONS AND RELATIONSHIPS

In the normal course of business, Westar Energy, KCP&L and GMO engage in related party transactions with one another. A summary of these transactions and the amounts associated with them is provided below. All related party transaction amounts between Westar Energy and either KCP&L or GMO only reflect activity between June 4, 2018, the date of the merger, and September 30, 2018.

Jointly-Owned Plants and Shared Services

KCP&L employees manage GMO's business and operate its facilities at cost, including GMO's 18% ownership interest in KCP&L's Iatan Nos. 1 and 2.  The operating expenses and capital costs billed from KCP&L to GMO were $43.4 million and $139.6 million, respectively, for the three months ended and year to date September 30, 2018. These costs totaled $49.2 million and $145.0 million, respectively, for the three months ended and year to date September 30, 2017.

Westar Energy employees manage Jeffrey Energy Center and operate its facilities at cost, including GMO's 8% ownership interest in Jeffrey Energy Center. The operating expenses and capital costs billed from Westar Energy to GMO for Jeffrey Energy Center and other various business activities were $0.8 million and $4.5 million, respectively, for the three months ended and year to date September 30, 2018.

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KCP&L employees manage La Cygne Station and operate its facilities at cost, including Westar Energy's 50% ownership interest in La Cygne Station. KCP&L and Westar Energy employees also provide one another with shared service support, including costs related to human resources, information technology, accounting and legal services. The operating expenses and capital costs billed from KCP&L to Westar Energy were $35.5 million and $50.8 million, respectively, for the three months ended and year to date September 30, 2018. The operating and capital costs billed from Westar Energy to KCP&L were $4.8 million and $10.8 million, respectively, for the three months ended and year to date September 30, 2018.

Money Pool

KCP&L and GMO are also authorized to participate in the Evergy money pool, an internal financing arrangement in which funds may be lent on a short-term basis to KCP&L and GMO from Evergy and between KCP&L and GMO. At September 30, 2018 and December 31, 2017, KCP&L had no outstanding receivables or payables under the money pool.

The following table summarizes Westar Energy's and KCP&L's related party net receivables and payables.

	September 30			December 31
	2018			2017
Westar Energy	(millions)
Net receivable from GMO	$	0.7		$	—
Net payable to KCP&L	(59.3		)	—
Net payable to Evergy	(14.6		)	—
KCP&L
Net receivable from GMO	$	63.3		$	65.8
Net receivable from Westar Energy	59.3			—
Net receivable from Evergy	16.4			—
Net receivable from Great Plains Energy	—			18.9

Tax Allocation Agreement

Evergy files a consolidated federal income tax return as well as unitary and combined income tax returns in several state jurisdictions with Kansas and Missouri being the most significant. Income taxes for consolidated or combined subsidiaries are allocated to the subsidiaries based on separate company computations of income or loss. As of September 30, 2018, Westar Energy and KCP&L had income taxes payable to Evergy of $4.4 million and $21.4 million, respectively.

15. SHAREHOLDERS' EQUITY

Evergy's authorized capital stock consists of 600 million shares of common stock, without par value, and 12 million shares of Preference Stock, without par value.

Evergy Registration Statements

In November 2018, Evergy filed an automatic shelf registration statement providing for the sale of unlimited amounts of securities with the SEC, which expires in November 2021.

In September 2018, Evergy registered shares of its common stock with the SEC for its Dividend Reinvestment and Direct Stock Purchase Plan. Shares issued under the plan may be either newly issued shares or shares purchased on the open market.

In June 2018, Evergy registered shares of its common stock with the SEC for the Great Plains Energy 401(k) Savings Plan and Westar Energy, Inc. Employees' 401(k) Savings Plan, among other compensation plans, that Evergy assumed in connection with the merger transaction. Shares issued under the plans may be either newly issued shares or shares purchased on the open market.

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Common Stock Repurchase Plan

In July 2018, the Evergy Board authorized the repurchase of up to 60 million shares of Evergy's common stock. Although this repurchase authorization has no expiration date, Evergy expects to repurchase the 60 million shares by mid-2020. Evergy plans to utilize various methods to effectuate the share repurchase program, including but not limited to, a series of transactions that may include accelerated share repurchases, open market transactions or other means, subject to market conditions and applicable legal requirements. The repurchase program may be suspended, discontinued or resumed at any time. Year to date September 30, 2018, Evergy had total repurchases of common stock of approximately $486 million and had repurchased 6.9 million shares under the repurchase program, which included shares repurchased under accelerated share repurchase (ASR) agreements which had not reached final settlement as of September 30, 2018, and are discussed further below. Evergy retires repurchased common stock shares in the period the shares are repurchased.

In August 2018, Evergy entered into two ASR agreements with financial institutions to purchase $450.0 million of Evergy common stock. In August 2018, the financial institutions delivered to Evergy 6.3 million shares of common stock, representing a partial settlement of the contracts, based on then-current market prices and Evergy paid a total of $450.0 million. The upfront payment was recorded as a reduction to Evergy, Inc. shareholders' equity on Evergy's consolidated balance sheets and as a repurchase of common stock on Evergy's consolidated statements of cash flows.

The final number of shares of Evergy common stock that Evergy may receive or be required to remit upon final settlement of the ASR agreements will be based on the average daily volume weighted-average price of Evergy common stock during the term of the ASR agreements, less a negotiated discount. Final settlement of each ASR agreement will occur by the end of November 2018 but may occur earlier at the option of the financial institutions.

In October 2018, one of the ASR agreements was settled early at the option of the financial institution, which resulted in the delivery to Evergy of 848,226 additional shares of Evergy common stock at no additional cost. Evergy expects that the final settlement of the remaining ASR agreement will also result in the delivery of additional shares of common stock to Evergy at no additional cost.

Evergy reflects the ASRs as a repurchase of common stock in the period the shares are delivered for purposes of calculating earnings per share and as forward contracts indexed to its own common stock. The ASRs meet all of the applicable criteria for equity classification and therefore are not accounted for as derivative instruments.

Dividend Restrictions

Evergy depends on its subsidiaries to pay dividends on its common stock. The Evergy Companies have certain restrictions stemming from statutory requirements, corporate organizational documents, covenants and other conditions that could affect dividend levels or the ability to pay dividends.

The KCC order authorizing the merger transaction requires Evergy to maintain consolidated common equity of at least 35% of total consolidated capitalization. Further, Evergy's master credit facility requires it to maintain a consolidated indebtedness to consolidated capitalization ratio of not more than 0.65 to 1.00 at all times.

Under the Federal Power Act, Westar Energy, KCP&L and GMO generally can pay dividends only out of retained earnings. Certain conditions in the MPSC and KCC orders authorizing the merger transaction also require Westar Energy and KCP&L to maintain consolidated common equity of at least 40% of total capitalization. Other conditions in the MPSC and KCC merger orders require Westar Energy, KCP&L and GMO to maintain credit ratings of at least investment grade. If Westar Energy's, KCP&L's or GMO's credit ratings are downgraded below the investment grade level as a result of their affiliation with Evergy or any of Evergy's affiliates, the impacted utility shall not pay a common dividend without KCC or MPSC approval or until the impacted utility's investment grade credit rating has been restored.

The master credit facility of Evergy, Westar Energy, KCP&L and GMO and the note purchase agreement for GMO's Series A, B and C Senior Notes contain covenants requiring the respective company to maintain a consolidated indebtedness to consolidated total capitalization ratio of not more than 0.65 to 1.00 at all times.

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As of September 30, 2018, all of Evergy's and Westar Energy's retained earnings and net income were free of restrictions and KCP&L had a retained earnings restriction of $227.4 million. Evergy's subsidiaries had restricted net assets of approximately $5.2 billion as of September 30, 2018. These restrictions are not expected to affect the Evergy Companies' ability to pay dividends at the current level for the foreseeable future.

16. VARIABLE INTEREST ENTITIES

In determining the primary beneficiary of a VIE, the Evergy Companies assess the entity's purpose and design, including the nature of the entity's activities and the risks that the entity was designed to create and pass through to its variable interest holders. A reporting enterprise is deemed to be the primary beneficiary of a VIE if it has (a) the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and (b) the obligation to absorb losses or right to receive benefits from the VIE that could potentially be significant to the VIE. The primary beneficiary of a VIE is required to consolidate the VIE. The trust holding an 8% interest in Jeffrey Energy Center was a VIE until the expiration of a purchase option in July 2017. The trust holding KGE's 50% interest in La Cygne Unit 2 is a VIE and KGE remains the primary beneficiary of the trust.

All involvement with entities by the Evergy Companies is assessed to determine whether such entities are VIEs and, if so, whether or not the Evergy Companies are the primary beneficiaries of the entities. The Evergy Companies also continuously assess whether they are the primary beneficiary of the VIE with which they are involved. Prospective changes in facts and circumstances may cause identification of the primary beneficiary to be reconsidered.

8% Interest in Jeffrey Energy Center

Under an agreement that expires in January 2019, Westar Energy leases an 8% interest in Jeffrey Energy Center from a trust. The trust was financed with an equity contribution from an owner participant and debt issued by the trust. The trust was created specifically to purchase the 8% interest in Jeffrey Energy Center and lease it to a third party, and does not hold any other assets. Westar Energy met the requirements to be considered the primary beneficiary of the trust until July 2017, when a contractual option to purchase the 8% interest in the plant covered by the lease expired. Accordingly, Westar Energy deconsolidated the trust in the third quarter of 2017.

50% Interest in La Cygne Unit 2

Under an agreement that expires in September 2029, KGE entered into a sale-leaseback transaction with a trust under which the trust purchased KGE's 50% interest in La Cygne Unit 2 and subsequently leased it back to KGE. The trust was financed with an equity contribution from an owner participant and debt issued by the trust. The trust was created specifically to purchase the 50% interest in La Cygne Unit 2 and lease it back to KGE, and does not hold any other assets. KGE meets the requirements to be considered the primary beneficiary of the trust. In determining the primary beneficiary of the trust, KGE concluded that the activities of the trust that most significantly impact its economic performance and that KGE has the power to direct include (1) the operation and maintenance of the 50% interest in La Cygne Unit 2 and (2) KGE's ability to exercise a purchase option at the end of the agreement at the lesser of fair value or a fixed amount. KGE has the potential to receive benefits from the trust that could potentially be significant if the fair value of the 50% interest in La Cygne Unit 2 at the end of the agreement is greater than the fixed amount.

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The following table summarizes the assets and liabilities related to the VIE described above that are recorded on Evergy's and Westar Energy's consolidated balance sheets.

	September 30		December 31
	2018		2017
Assets:	(millions)
Property, plant and equipment of variable interest entities, net	$	170.9	$	176.3
Liabilities:
Current maturities of long-term debt of variable interest entities	$	30.3	$	28.5
Accrued interest(a)	—		0.7
Long-term debt of variable interest entities, net	51.1		81.4

^(a)  Included in accrued interest on Evergy's and Westar Energy's consolidated balance sheets.

All of the liabilities noted in the table above relate to the purchase of the property, plant and equipment of the VIE. The assets of the VIE can be used only to settle obligations of the VIE and the VIE's debt holders have no recourse to the general credit of Evergy and Westar Energy. Evergy and Westar Energy have not provided financial or other support to the VIE and are not required to provide such support. Evergy and Westar Energy did not record any gain or loss upon the initial consolidation of the VIE.

17. TAXES

Components of income tax expense are detailed in the following tables.

Evergy
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	(30.3	)	$	(16.7	)	$	(21.5	)	$	(14.5	)
State	1.5			—			1.9			0.4
Total	(28.8		)	(16.7		)	(19.6		)	(14.1		)
Deferred income taxes
Federal	70.6			58.8			86.0			101.7
State	23.3			14.3			(35.7		)	27.0
Total	93.9			73.1			50.3			128.7
Investment tax credit amortization	(1.0		)	(0.6		)	(2.4		)	(2.0		)
Income tax expense	$	64.1		$	55.8		$	28.3		$	112.6

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Westar Energy
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	8.0		$	(16.7	)	$	18.9		$	(14.5	)
State	(9.2		)	—			(6.7		)	0.4
Total	(1.2		)	(16.7		)	12.2			(14.1		)
Deferred income taxes
Federal	12.3			58.8			15.4			101.7
State	12.0			14.3			(47.6		)	27.0
Total	24.3			73.1			(32.2		)	128.7
Investment tax credit amortization	(0.7		)	(0.6		)	(2.0		)	(2.0		)
Income tax expense (benefit)	$	22.4		$	55.8		$	(22.0	)	$	112.6

KCP&L
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	20.7		$	41.8		$	43.5		$	56.2
State	6.8			7.6			11.6			10.2
Total	27.5			49.4			55.1			66.4
Deferred income taxes
Federal	(1.9		)	10.3			(23.4		)	27.2
State	2.7			2.8			49.4			6.2
Total	0.8			13.1			26.0			33.4
Investment tax credit amortization	(0.3		)	(0.3		)	(0.8		)	(0.8		)
Income tax expense	$	28.0		$	62.2		$	80.3		$	99.0

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Effective Income Tax Rates

Effective income tax rates reflected in the financial statements and the reasons for their differences from the statutory federal rates are detailed in the following tables.

Evergy
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(2.4	)	(4.6	)	(2.4	)	(4.5	)
State income taxes	4.6		4.3		4.7		4.3
Flow through depreciation for plant-related differences	(1.5	)	2.3		(1.6	)	2.8
Federal tax credits	(7.5	)	(7.1	)	(7.5	)	(7.0	)
Non-controlling interest	(0.4	)	(0.5	)	(0.4	)	(0.8	)
AFUDC equity	(0.1	)	(0.2	)	(0.1	)	(0.2	)
Amortization of federal investment tax credits	(0.6	)	(0.6	)	(0.6	)	(0.6	)
State tax rate change	0.1		—		(9.5	)	—
Valuation allowance	—		—		0.4		—
Stock compensation	—		—		(0.5	)	(1.0	)
Officer compensation limitation	1.2		—		1.2		—
Other	0.8		(2.8	)	0.4		(0.7	)
Effective income tax rate	15.2	%	25.8	%	5.1	%	27.3	%

The decrease in Evergy's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of Westar Energy's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

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Westar Energy
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(4.0	)	(4.6	)	(4.0	)	(4.5	)
State income taxes	1.1		4.3		3.3		4.3
Flow through depreciation for plant-related differences	1.5		2.3		0.3		2.8
Federal tax credits	(11.8	)	(7.1	)	(11.7	)	(7.0	)
Non-controlling interest	(0.6	)	(0.5	)	(0.7	)	(0.8	)
AFUDC equity	(0.1	)	(0.2	)	(0.1	)	(0.2	)
Amortization of federal investment tax credits	(0.8	)	(0.6	)	(0.8	)	(0.6	)
Changes in uncertain tax positions, net	0.1		—		0.1		—
State tax rate change	—		—		(17.7	)	—
Valuation allowance	—		—		0.6		—
Stock compensation	—		—		(0.9	)	(1.0	)
Officer compensation limitation	1.9		—		1.9		—
Other	2.9		(2.8	)	1.3		(0.7	)
Effective income tax rate	11.2	%	25.8	%	(7.4	)%	27.3	%

The decrease in Westar Energy's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of Westar Energy's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

KCP&L
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(0.2	)	(0.3	)	(0.2	)	(0.3	)
State income taxes	5.0		3.9		5.1		3.9
Flow through depreciation for plant-related differences	(4.9	)	0.1		(4.9	)	0.2
Federal tax credits	(1.9	)	(3.1	)	(1.8	)	(2.6	)
AFUDC equity	—		(0.7	)	(0.1	)	(0.7	)
Amortization of federal investment tax credits	(0.4	)	(0.4	)	(0.4	)	(0.4	)
State tax rate change	—		—		14.5		—
Valuation allowance	—		0.6		—		0.4
Stock compensation	—		0.1		—		0.2
Officer compensation limitation	0.7		—		0.5		—
Other	(0.4	)	0.1		(1.0	)	0.1
Effective income tax rate	18.9	%	35.3	%	32.7	%	35.8	%

The increase in KCP&L's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of KCP&L's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger, partially offset by a revaluation of KCP&L's state deferred income tax assets and liabilities as a result of the enactment of Missouri state income tax reform in June 2018.

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Federal Tax Reform

In December 2017, the U.S. Congress passed and President Donald Trump signed Public Law No. 115-97, commonly referred to as the Tax Cuts and Jobs Act. The Tax Cuts and Jobs Act represents the first major reform in U.S. income tax law since 1986. Most notably, the Tax Cuts and Jobs Act reduces the current top corporate income tax rate from 35% to 21% beginning in 2018, repeals the corporate Alternative Minimum Tax (AMT), makes existing AMT tax credit carryforwards refundable, and changes the deductibility and taxability of certain items, among other things. Prior to the change in tax rates that has been reflected in their 2018 rate cases,Westar Energy, KCP&L and GMO recovered the cost of income taxes in rates from their customers based on the 35% federal corporate income tax rate.

In January 2018, the KCC issued an order requiring certain regulated public utilities, including Westar Energy and KCP&L, to begin recording a regulatory liability for the difference between the new corporate tax rate and amounts currently collected in rates. In May 2018 and June 2018, Westar Energy and KCP&L entered into settlement agreements with KCC staff and other intervenors in which they further agreed to begin deferring any impacts of the Tax Cuts and Jobs Act on their excess accumulated deferred income taxes to a regulatory liability. The KCC approved these settlement agreements in June 2018. KCP&L and GMO had also recorded regulatory liabilities in 2018 due to the probability that they would also be required to make similar refunds to their Missouri customers. The final regulatory treatment of these regulatory liabilities was determined in each of Westar Energy's, KCP&L's and GMO's rate cases with the KCC and MPSC. See Note 5 for more information.

As of September 30, 2018, Evergy, Westar Energy and KCP&L had recorded regulatory liabilities for refunds to customers related to the impacts of the Tax Cuts and Jobs Act of $155.1 million, $66.3 million and $64.6 million, respectively.

Missouri Tax Reform

On June 1, 2018, the Missouri governor signed Senate Bill (S.B.) 884 into law. Most notably, S.B. 884 reduces the corporate income tax rate from 6.25% to 4.0% beginning in 2020, provides for the mandatory use of the single sales factor formula and eliminates intercompany transactions between corporations that file a consolidated Missouri income tax return.

As a result of the change in the Missouri corporate income tax rate, KCP&L revalued and restated its deferred income tax assets and liabilities as of June 1, 2018. KCP&L decreased its net deferred income tax liabilities by $46.6 million, primarily consisting of a $28.8 million adjustment for the revaluation and restatement of deferred income tax assets and liabilities included in Missouri jurisdictional rate base and a $9.9 million tax gross-up adjustment for ratemaking purposes. The decrease to KCP&L's net deferred income tax liabilities included in Missouri jurisdictional rate base were offset by a corresponding increase in regulatory liabilities. The net regulatory liabilities will be amortized to customers over a period to be determined in a future rate case.

KCP&L recognized $15.5 million of income tax benefit primarily related to the difference between KCP&L's revaluation of its deferred income tax assets and liabilities for financial reporting purposes and the amount of the revaluation pertaining to KCP&L's Missouri jurisdictional rate base.

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following combined Management's Discussion and Analysis of Financial Condition and Results of Operations (MD&A) should be read in conjunction with the consolidated financial statements and accompanying notes in this combined Quarterly Report on Form 10-Q, the Westar Energy First Quarter 2018 Quarterly Report on Form 10-Q, the Great Plains Energy and KCP&L combined First Quarter 2018 Quarterly Report on Form 10-Q, the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K. None of the registrants make any representation as to information related solely to Evergy, Westar Energy or KCP&L other than itself.

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EVERGY, INC.

EXECUTIVE SUMMARY

Evergy, Inc. is a public utility holding company incorporated in 2017 and headquartered in Kansas City, Missouri. Evergy operates primarily through the following wholly-owned direct subsidiaries:

• Westar Energy is an integrated, regulated electric utility that provides electricity to customers in the state of Kansas. Westar Energy has one active wholly-owned subsidiary with significant operations, KGE.

• KCP&L is an integrated, regulated electric utility that provides electricity to customers in the states of Missouri and Kansas. KCP&L has one active wholly-owned subsidiary, KCP&L Receivables Company.

• GMO is an integrated, regulated electric utility that provides electricity to customers in the state of Missouri. GMO also provides regulated steam service to certain customers in the St. Joseph, Missouri area. GMO has one active wholly-owned subsidiary, GMO Receivables Company.

• GPETHC owns 13.5% of Transource with the remaining 86.5% owned by AEP Transmission Holding Company, LLC, a subsidiary of AEP. Transource is focused on the development of competitive electric transmission projects. GPETHC accounts for its investment in Transource under the equity method.

Westar Energy also owns a 50% interest in Prairie Wind, which is a joint venture between Westar Energy and Electric Transmission America, LLC, which itself is a joint venture between affiliates of AEP and Berkshire Hathaway Energy Company. Prairie Wind owns a 108-mile, 345 kV double-circuit transmission line that is now being used to provide transmission service in the SPP. Westar Energy accounts for its investment in Prairie Wind under the equity method.

Westar Energy and KGE conduct business in their respective service territories using the name Westar Energy. KCP&L and GMO conduct business in their respective service territories using the name KCP&L. Collectively, the Evergy Companies have approximately 12,300 MWs of owned generating capacity and engage in the generation, transmission, distribution and sale of electricity to approximately 1.6 million customers in the states of Kansas and Missouri. The Evergy Companies assess financial performance and allocate resources on a consolidated basis (i.e., operate in one segment).

Great Plains Energy and Westar Energy Merger

Evergy was incorporated in 2017 as Monarch Energy, a wholly-owned subsidiary of Great Plains Energy. Prior to the closing of the merger transactions, Monarch Energy changed its name to Evergy and did not conduct any business activities other than those required for its formation and matters contemplated by the Amended Merger Agreement. On June 4, 2018, in accordance with the Amended Merger Agreement, Great Plains Energy merged into Evergy, with Evergy surviving the merger and King Energy merged into Westar Energy, with Westar Energy surviving the merger. These merger transactions resulted in Evergy becoming the parent entity of Westar Energy and the direct subsidiaries of Great Plains Energy, including KCP&L and GMO. As a result of the closing of the merger transactions, each outstanding share of Great Plains Energy common stock was converted into 0.5981 shares of Evergy common stock, resulting in the issuance of 128.9 million shares. Additionally, each outstanding share of Westar Energy common stock was converted into 1 share of Evergy common stock.

Westar Energy was determined to be the accounting acquirer and thus, the predecessor of Evergy. Therefore, Evergy's accompanying consolidated financial statements reflect the results of operations of Westar Energy for the three months ended and year to date September 30, 2017 and the financial position of Westar Energy as of December 31, 2017. Evergy had separate operations for the period beginning with the quarter ended June 30, 2018, and references to amounts for periods after the closing of the merger relate to Evergy. The results of Great Plains Energy's direct subsidiaries have been included in Evergy's results of operations from the date of the closing of the merger and thereafter.

KCP&L has elected not to apply "push-down accounting" related to the merger, whereby the adjustments of assets and liabilities to fair value and the resulting goodwill would be recorded on the financial statements of the

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acquired subsidiary. These adjustments for KCP&L, as well as those related to the acquired assets and liabilities of Great Plains Energy and its other direct subsidiaries, are reflected at consolidated Evergy.

See Note 2 to the consolidated financial statements for more information regarding the merger.

Common Stock Repurchase Program

In July 2018, the Evergy Board authorized the repurchase of up to 60 million shares of Evergy's common stock. Although this repurchase authorization has no expiration date, Evergy expects to repurchase the 60 million shares by mid-2020. Evergy plans to utilize various methods to effectuate the share repurchase program, including but not limited to, a series of transactions that may include accelerated share repurchases, open market transactions or other means, subject to market conditions and applicable legal requirements. The repurchase program may be suspended, discontinued or resumed at any time. Year to date September 30, 2018, Evergy had total repurchases of common stock of approximately $486 million and had repurchased 6.9 million shares under the repurchase program, which included shares repurchased under ASR agreements which had not reached final settlement as of September 30, 2018, and are discussed further below.

In August 2018, Evergy entered into two ASR agreements with financial institutions to purchase $450.0 million of Evergy common stock. In August 2018, the financial institutions delivered to Evergy 6.3 million shares of common stock, representing a partial settlement of the contracts, based on then-current market prices and Evergy paid a total of $450.0 million. The final number of shares of Evergy common stock that Evergy may receive or be required to remit upon final settlement of the ASR agreements will be based on the average daily volume weighted-average price of Evergy common stock during the term of the ASR agreements, less a negotiated discount. Final settlement of each ASR agreement will occur by the end of November 2018 but may occur earlier at the option of the financial institutions.

In October 2018, one of the ASR agreements was settled early at the option of the financial institution, which resulted in the delivery to Evergy of 848,226 additional shares of Evergy common stock at no additional cost. Evergy expects that the final settlement of the remaining ASR agreement will also result in the delivery of additional shares of common stock to Evergy at no additional cost.

See Note 15 to the consolidated financial statements for more information regarding Evergy's common stock repurchase program.

Missouri Legislation

On June 1, 2018, Missouri S.B. 564 was signed into law by the Governor of Missouri. Most notably, S.B. 564 includes a plant-in service accounting (PISA) provision that can be elected by Missouri electric utilities to defer to a regulatory asset and recover 85% of depreciation expense and associated return on investment for qualifying electric plant rate base additions. Qualifying electric plant includes all rate base additions with the exception of new coal, nuclear or natural gas generating units or rate base additions that increase revenues by allowing service to new customer premises. The deferred depreciation and return in the associated regulatory asset, except for any prudence disallowances, are required to be included in determining the utility's rate base during subsequent general rate proceedings subject to a 3% compound annual growth rate limitation on future electric rates compared with the utility's rates in effect prior to electing PISA. Utilities that elect the PISA provision can make qualifying deferrals of depreciation and return through December 2023, with a potential extension through December 2028 subject to MPSC approval. KCP&L and GMO are currently evaluating the provisions of S.B. 564 and expect to elect the PISA provision in late 2018 or early 2019.

Regulatory Proceedings

See Note 5 to the consolidated financial statements for information regarding regulatory proceedings.

Plant Retirements

In 2017, Westar Energy announced plans to retire Unit 7 at Tecumseh Energy Center, Units 3 and 4 at Murray Gill Energy Center and Units 1 and 2 at Gordon Evans Energy Center, subject to the completion of the merger in

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2018. In October 2018 and November 2018, Westar Energy retired these units consistent with this previously announced plan.

In 2017, KCP&L and GMO announced plans to retire KCP&L's Montrose Station and GMO's Sibley Station by December 31, 2018.

Strategy

Evergy expects to continue operating its vertically integrated utilities within their existing regulatory frameworks. Evergy's objectives are to deliver value to shareholders through attractive earnings and dividend growth; serve customers and communities with reliable service, clean energy and fewer and lower rate increases; and maintain a rewarding and challenging work environment for employees. Significant elements of Evergy's strategy to achieve these objectives include:

• the realization of a total of approximately $600 million of potential net savings from 2018 through 2022 resulting from synergies that are expected to be created as a result of the merger;

• the repurchase of approximately 60 million outstanding shares of Evergy common stock by mid-2020;

• anticipated rate base investment of approximately $6 billion from 2018 through 2022;

• the continued growth of Evergy's renewable energy portfolio as the Evergy Companies retire older and less efficient fossil fuel plants; and

• implementing the rate orders received and to be received by the KCC and MPSC by year-end 2018.

See "Cautionary Statements Regarding Certain Forward-Looking Information" and Part II, Item 1A, Risk Factors, for additional information.

Earnings Overview

The following table summarizes Evergy's net income and diluted EPS.

	Three Months Ended September 30						Year to Date September 30
	2018		2017		Change		2018		2017		Change
	(millions, except per share amounts)
Net income attributable to Evergy, Inc.	$	355.0	$	158.3	$	196.7	$	517.3	$	290.0	$	227.3
Earnings per common share, diluted	1.32		1.11		0.21		2.61		2.03		0.58

Net income and diluted EPS increased for the three months ended September 30, 2018, compared to the same period in 2017, primarily due to the inclusion of KCP&L's and GMO's earnings and higher Westar Energy retail sales driven by favorable weather.

Net income and diluted EPS increased year to date September 30, 2018, compared to the same period in 2017, primarily due to the inclusion of KCP&L's and GMO's earnings beginning in June 2018, higher Westar Energy retail sales driven by favorable weather and lower income tax expense, partially offset by merger-related costs and reductions of revenue for customer bill credits incurred following the close of the merger.

In addition, a higher number of diluted weighted average common shares outstanding due to the issuance of common shares to Great Plains Energy shareholders as a result of the merger diluted earnings per share by $1.17 and $1.02 for the three months ended and year to date September 30, 2018, respectively.

For additional information regarding the change in net income, refer to the Evergy Results of Operations section within this MD&A.

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Impact of Recently Issued Accounting Standards

See Note 1 to the consolidated financial statements for information regarding the impact of recently issued accounting standards.

Wolf Creek Refueling Outage

Wolf Creek's most recent refueling outage began in March 2018 and the unit returned to service in May 2018. Wolf Creek's next refueling outage is planned to begin in the third quarter of 2019.

ENVIRONMENTAL MATTERS

See Note 12 to the consolidated financial statements for information regarding environmental matters.

RELATED PARTY TRANSACTIONS

See Note 14 to the consolidated financial statements for information regarding related party transactions.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts and related disclosures. Management considers an accounting estimate to be critical if it requires assumptions to be made that were uncertain at the time the estimate was made and changes in the estimate or different estimates that could have been used could have a material impact on Evergy's results of operations and financial position. The accounting policies and estimates that Evergy believes were the most critical in nature were reported in the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K. There have been no material changes with regard to these critical accounting policies and estimates.

EVERGY RESULTS OF OPERATIONS

Evergy's results of operations and financial position are affected by a variety of factors including rate regulation, fuel costs, weather, customer behavior and demand, the economy and competitive forces.

Substantially all of Evergy's revenues are subject to state or federal regulation. This regulation has a significant impact on the price the Evergy Companies charge for electric service. Evergy's results of operations and financial position are affected by its ability to align overall spending, both operating and capital, within the frameworks established by its regulators.

Wholesale revenues are impacted by, among other factors, demand, cost and availability of fuel and purchased power, price volatility, available generation capacity, transmission availability and weather.

The Evergy Companies primarily use coal and nuclear fuel for the generation of electricity for their customers and also purchase power on the open market. The prices for these commodities can fluctuate significantly due to a variety of factors including supply, demand, weather and the broader economic environment. Westar Energy, KCP&L and GMO have fuel recovery mechanisms in their Kansas and Missouri jurisdictions, as applicable, that allow them to defer and subsequently recover or refund, through customer rates, substantially all of the variance in net energy costs from the amount set in base rates without a general rate case proceeding.

Weather significantly affects the amount of electricity that Evergy's customers use as electricity sales are seasonal. As summer peaking utilities, the third quarter typically accounts for the greatest electricity sales by the Evergy Companies. Hot summer temperatures and cold winter temperatures prompt more demand, especially among residential and commercial customers, and to a lesser extent, industrial customers. Mild weather reduces customer demand.

Energy efficiency investments by customers and the Evergy Companies also can affect the demand for electric service. Through the Missouri Energy Efficiency Investment Act (MEEIA), KCP&L and GMO offer energy

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efficiency and demand side management programs to their Missouri retail customers and recover program costs, throughput disincentive and as applicable, certain performance incentives in retail rates through a rider mechanism.

The following table summarizes Evergy's comparative results of operations.

	Three Months Ended September 30									Year to Date September 30
	2018			2017			Change			2018			2017			Change
	(millions)
Operating revenues	$	1,582.5		$	794.3		$	788.2		$	3,076.1		$	1,976.2		$	1,099.9
Fuel and purchased power	383.7			189.8			193.9			748.9			415.4			333.5
SPP network transmission costs	58.4			62.6			(4.2		)	194.4			185.0			9.4
Other operating expenses	413.4			182.4			231.0			937.7			542.0			395.7
Depreciation and amortization	193.9			94.6			99.3			411.6			277.3			134.3
Income from operations	533.1			264.9			268.2			783.5			556.5			227.0
Other income (expense), net	(24.3		)	(6.6		)	(17.7		)	(43.7		)	(20.4		)	(23.3		)
Interest expense	89.1			43.4			45.7			191.3			128.2			63.1
Income tax expense	64.1			55.8			8.3			28.3			112.6			(84.3		)
Equity in earnings of equity method investees, net of income taxes	2.0			1.6			0.4			4.7			4.9			(0.2		)
Net income	357.6			160.7			196.9			524.9			300.2			224.7
Less: Net income attributable to noncontrolling interests	2.6			2.4			0.2			7.6			10.2			(2.6		)
Net income attributable to Evergy, Inc.	$	355.0		$	158.3		$	196.7		$	517.3		$	290.0		$	227.3

Evergy Utility Gross Margin and MWh Sales

Utility gross margin is a financial measure that is not calculated in accordance with GAAP.  Utility gross margin, as used by the Evergy Companies, is defined as operating revenues less fuel and purchased power costs and amounts billed by the SPP for network transmission costs. Expenses for fuel and purchased power costs, offset by wholesale sales margin, are subject to recovery through cost adjustment mechanisms.  As a result, changes in fuel and purchased power costs are offset in operating revenues with minimal impact on net income. In addition, SPP network transmission costs fluctuate primarily due to investments by SPP members for upgrades to the transmission grid within the SPP Regional Transmission Organization (RTO).  As with fuel and purchased power costs, changes in SPP network transmission costs are mostly reflected in the prices charged to customers with minimal impact on net income.

Management believes that utility gross margin provides a meaningful basis for evaluating the Evergy Companies' operations across periods compared with operating revenues because utility gross margin excludes the revenue effect of fluctuations in these expenses.  Utility gross margin is used internally to measure performance against budget and in reports for management and the Evergy Board.  The Evergy Companies' definition of utility gross margin may differ from similar terms used by other companies.

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The following tables summarize Evergy's utility gross margin and MWhs sold.

	Revenues and Expenses										MWhs Sold
Three Months Ended September 30	2018			2017			Change				2018	2017	Change
Retail revenues	(millions)										(thousands)
Residential	$	647.1		$	275.9			$	371.2		4,839	2,081	2,758
Commercial	530.5			218.1				312.4			5,259	2,156	3,103
Industrial	173.4			117.3				56.1			2,365	1,563	802
Other retail revenues	10.9			4.9				6.0			40	12	28
Total electric retail	1,361.9			616.2				745.7			12,503	5,812	6,691
Wholesale revenues	118.5			103.5				15.0			3,883	3,128	755
Transmission revenues	80.6			70.8				9.8			N/A	N/A	N/A
Other revenues	21.5			3.8				17.7			N/A	N/A	N/A
Operating revenues	1,582.5			794.3				788.2			16,386	8,940	7,446
Fuel and purchased power	(383.7		)	(189.8		)		(193.9		)
SPP network transmission costs	(58.4		)	(62.6		)		4.2
Utility gross margin (a)	$	1,140.4		$	541.9			$	598.5
(a) Utility gross margin is a non-GAAP financial measure.  See explanation of utility gross margin above.
	Revenues and Expenses										MWhs Sold
Year to Date September 30	2018			2017				Change			2018	2017	Change
Retail revenues	(millions)										(thousands)
Residential	$	1,169.4		$	626.8			$	542.6		9,047	4,828	4,219
Commercial	945.0			543.4				401.6			9,794	5,588	4,206
Industrial	375.5			316.0				59.5			5,345	4,319	1,026
Other retail revenues	21.5			17.2				4.3			75	56	19
Total electric retail	2,511.4			1,503.4				1,008.0			24,261	14,791	9,470
Wholesale revenues	302.4			256.2				46.2			9,789	7,612	2,177
Transmission revenues	227.6			213.0				14.6			N/A	N/A	N/A
Other revenues	34.7			3.6				31.1			N/A	N/A	N/A
Operating revenues	3,076.1			1,976.2				1,099.9			34,050	22,403	11,647
Fuel and purchased power	(748.9		)	(415.4		)		(333.5		)
SPP network transmission costs	(194.4		)	(185.0		)		(9.4		)
Utility gross margin (a)	$	2,132.8		$	1,375.8			$	757.0
(a) Utilitygross margin is a non-GAAP financial measure.  See explanation of utility gross margin above.

Evergy's utility gross margin increased$598.5 million for the three months ended September 30, 2018, compared to the same period in 2017 driven by:

• a $603.7 million increase due to the inclusion of KCP&L's and GMO's utility gross margin; and

• a $25.1 million increase primarily due to higher Westar Energy retail sales driven by warmer summer weather. For the three months ended September 30, 2018, compared to the same period in 2017, cooling degree days increased 17%; partially offset by

• a $28.1 million refund obligation recorded at Westar Energy for the change in the corporate income tax rate caused by the passage of the Tax Cuts and Jobs Act. See Note 17 to the consolidated financial statements for additional information; and

• a $2.2 million obligation recorded at Westar Energy for one-time annual bill credits as a result of conditions in the KCC merger order. See Note 2 to the consolidated financial statements for additional information.

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Evergy's utility gross margin increased$757.0 millionyear to dateSeptember 30, 2018, compared to the same period in 2017 driven by:

• a $774.5 million increase due to the inclusion of KCP&L's and GMO's utility gross margin beginning in June 2018; and

• a $77.7 million increase primarily due to higher Westar Energy retail sales driven by warmer spring and summer weather and colder winter weather. For year to date September 30, 2018, compared to the same period in 2017, cooling degree days increased 32% and heating degree days increased 29%; partially offset by

• a $66.3 million refund obligation recorded at Westar Energy for the change in the corporate income tax rate caused by the passage of the Tax Cuts and Jobs Act. See Note 17 to the consolidated financial statements for additional information; and

• a $28.9 million obligation recorded at Westar Energy for one-time and annual bill credits as a result of conditions in the KCC merger order. See Note 2 to the consolidated financial statements for additional information.

Other Operating Expenses (including operating and maintenance expense and taxes other than income tax)

Evergy's other operating expenses increased$231.0 million for the three months ended September 30, 2018, compared to the same period in 2017 primarily driven by:

• a $183.9 million increase in operating and maintenance expense due to the inclusion of KCP&L's and GMO's operating and maintenance expenses;

• a $40.7 million increase in taxes other than income taxes due to the inclusion of KCP&L and GMO amounts;

• $7.1 million of merger-related costs incurred following the close of the merger, consisting of:

◦ $0.8 million of Westar Energy voluntary severance expenses incurred; and

◦ $6.3 million of merger consulting fees and fees for other outside services incurred; and

• a $5.5 million increase due to Westar Energy's 47% share of voluntary severance expenses incurred related to the Wolf Creek voluntary exit program.

Evergy's other operating expenses increased$395.7 million year to date September 30, 2018, compared to the same period in 2017 primarily driven by:

• a $245.6 million increase in operating and maintenance expense due to the inclusion of KCP&L's and GMO's operating and maintenance expenses beginning in June 2018, excluding the deferral of merger transition costs discussed below;

• $64.6 million of merger-related costs incurred following the close of the merger in June 2018, consisting of:

◦ $24.7 million of unconditional charitable contributions and community support recorded by Evergy in accordance with conditions in the KCC and MPSC merger orders;

◦ $40.7 million of Westar Energy change in control payments, voluntary severance and the recording of unrecognized equity compensations costs and the incremental fair value associated with the vesting of outstanding Westar Energy equity compensation awards in accordance with the Amended Merger Agreement; and

◦ $47.0 million of merger consulting fees and fees for other outside services incurred, primarily consisting of merger success fees; partially offset by

◦ a $47.8 million decrease in operating and maintenance expense due to the deferral of merger transition costs to a regulatory asset in June 2018 for future recovery by Westar Energy, KCP&L and GMO in accordance with the KCC and MPSC merger orders;

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• a $54.6 million increase in taxes other than income taxes due to the inclusion of KCP&L and GMO amounts beginning in June 2018;

• $12.3 million of obsolete inventory write-offs for Westar Energy's Unit 7 at Tecumseh Energy Center, Units 3 and 4 at Murray Gill Energy Center and Units 1 and 2 at Gordon Evans Energy Center, which were retired in the fourth quarter of 2018; and

• a $5.5 million increase due to Westar Energy's 47% share of voluntary severance expenses incurred related to the Wolf Creek voluntary exit program.

Depreciation and Amortization

Evergy's depreciation and amortization increased$99.3 million for the three months ended September 30, 2018, compared to the same period in 2017, primarily driven by a $98.0 million increase due to the inclusion of KCP&L's and GMO's depreciation expense.

Evergy's depreciation and amortization increased$134.3 million year to date September 30, 2018, compared to the same period in 2017, primarily driven by a $130.0 million increase due to the inclusion of KCP&L's and GMO's depreciation expense beginning in June 2018.

Other Income (Expense), Net

Evergy's other expense, net increased $17.7 million for the three months ended September 30, 2018, compared to the same period in 2017 primarily driven by:

• an $11.7 million increase due to the inclusion of KCP&L and GMO amounts; and

• a $1.0 million decrease in Westar Energy's investment earnings primarily due to a decrease in interest and dividend income.

Evergy's other expense, net increased $23.3 million year to date September 30, 2018, compared to the same period in 2017 primarily driven by:

• a $14.6 million increase due to the inclusion of KCP&L and GMO amounts beginning in June 2018; and

• a $3.9 million decrease in Westar Energy's investment earnings primarily due to a decrease in interest and dividend income.

Interest Expense

Evergy's interest expense increased$45.7 million for the three months ended September 30, 2018, compared to the same period in 2017, primarily driven by a $45.2 million increase due to the inclusion of KCP&L's and GMO's interest expense and Evergy's assumption of Great Plains Energy's $350.0 million of 4.85% unsecured Senior Notes and $287.5 million of 5.292% unsecured Senior Notes upon the consummation of the merger.

Evergy's interest expense increased$63.1 million year to date September 30, 2018, compared to the same period in 2017 primarily driven by a $59.2 million increase due to the inclusion of KCP&L's and GMO's interest expense beginning in June 2018 and Evergy's assumption of Great Plains Energy's $350.0 million of 4.85% unsecured Senior Notes and $287.5 million of 5.292% unsecured Senior Notes upon the consummation of the merger.

Income Tax Expense

Evergy's income tax expense increased$8.3 million for the three months ended September 30, 2018, compared to the same period in 2017 primarily driven by:

• a $41.5 million increase as a result of the inclusion of income tax expense related to Evergy, Inc. and the subsidiaries of Great Plains Energy; partially offset by

• a $25.9 million decrease in Westar Energy's income tax expense as a result of the decrease in the federal statutory income tax rate in 2018; and

• a $6.9 million decrease due to lower Westar Energy pre-tax income.

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Evergy's income tax expense decreased$84.3 million year to date September 30, 2018, compared to the same period in 2017 primarily driven by:

• a $53.2 million decrease related to the revaluation of Westar Energy's deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger;

• a $47.5 million decrease due to lower Westar Energy pre-tax income; and

• a $38.1 million decrease in Westar Energy's income tax expense as a result of the decrease in the federal statutory income tax rate in 2018; partially offset by

• a $50.2 million increase as a result of the inclusion of income tax expense related to Evergy, Inc. and the subsidiaries of Great Plains Energy beginning in June 2018.

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EVERGY SIGNIFICANT BALANCE SHEET CHANGES

(September 30, 2018 compared to December 31, 2017)

The following table summarizes Evergy's significant balance sheet changes.

	Total Change			Change Due to Merger		Remaining Change
Assets	(in millions)
Cash and cash equivalents	$	676.3		$	1,154.2	$	(477.9	)
Accounts receivable, net	205.8			155.6		50.2
Accounts receivable pledged as collateral	195.0			180.0		15.0
Fuel inventories and supplies	227.3			271.5		(44.2		)
Income taxes receivable	20.8			—		20.8
Regulatory assets - current	233.0			207.8		25.2
Prepaid expenses and other assets	33.8			41.5		(7.7		)
Property, plant and equipment, net	9,282.2			9,179.7		102.5
Property, plant and equipment of variable interest entities, net	(5.4		)	—		(5.4		)
Regulatory assets	832.7			829.1		3.6
Nuclear decommissioning trust	280.9			261.3		19.6
Goodwill	2,333.5			2,333.5		—
Other	134.9			145.5		(10.6		)
Liabilities
Current maturities of long-term debt	709.6			415.3		294.3
Current maturities of long-term debt of variable interest entities	1.8			—		1.8
Notes payable and commercial paper	400.2			561.0		(160.8		)
Collateralized note payable	195.0			180.0		15.0
Accounts payable	99.5			191.4		(91.9		)
Accrued dividends	(53.8		)	—		(53.8		)
Accrued taxes	194.4			82.0		112.4
Accrued interest	46.9			48.0		(1.1		)
Regulatory liabilities - current	105.6			17.7		87.9
Other current liabilities	136.3			119.1		17.2
Long-term debt, net	2,952.2			3,358.6		(406.4		)
Long-term debt of variable interest entities, net	(30.3		)	—		(30.3		)
Deferred income taxes	720.3			665.1		55.2
Unamortized investment tax credits	121.8			124.3		(2.5		)
Regulatory liabilities	1,263.1			1,172.9		90.2
Pension and post-retirement liability	458.5			477.3		(18.8		)
Asset retirement obligations	242.7			366.1		(123.4		)
Other long-term liabilities	98.6			83.1		15.5

Change Due to Merger as reflected in the table above represents the preliminary purchase price allocation to Great Plains Energy's assets and liabilities as of June 4, 2018. See Note 2 to the consolidated financial statements for additional information regarding changes in Evergy's balance sheet due to the merger.

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The following are significant balance sheet changes in addition to those due to the Great Plains Energy and Westar Energy merger:

• Evergy's cash and cash equivalents decreased $477.9 million primarily due to the repurchase of common stock for a total cost of $486.1 million in connection with Evergy's share repurchase program.

• Evergy's receivables, net increased $50.2 million primarily due to seasonal increases in customer accounts receivable.

• Evergy's current maturities of long-term debt increased by $294.3 million primarily due to the reclassification of KGE's $300.0 million of 6.70% Series First Mortgage Bonds from long-term to current.

• Evergy's notes payable and commercial paper decreased $160.8 million primarily due to the repayment of commercial paper with funds from operations at KCP&L and GMO.

• Evergy's accounts payable decreased $91.9 million primarily due to the timing of cash payments.

• Evergy's accrued dividends decreased $53.8 million due to the timing of payment for Westar Energy's common stock dividend declared in August 2018, which was paid in September 2018, and its common stock dividend declared in November 2017, which was paid in January 2018.

• Evergy's accrued taxes increased $112.4 million primarily due to the timing of property tax payments.

• Evergy's current regulatory liabilities increased $87.9 million primarily due to $79.0 million of refund obligations recorded by Westar Energy consisting of $55.9 million related to the Tax Cuts and Jobs Act and $23.1 million related to one-time customer merger bill credits.

• Evergy's long-term debt decreased by $406.4 million primarily due to the reclassification of KGE's $300.0 million of 6.70% Series First Mortgage Bonds from long-term to current and the redemption of $104.0 million of GMO's Series A and B Senior Notes in the third quarter of 2018.

• Evergy's long-term debt of variable interest entities, net decreased $30.3 million primarily due to the VIE that holds the La Cygne Unit 2 leasehold interest having made principal payments totaling $28.5 million.

• Evergy's asset retirement obligations decreased $123.4 million primarily due to a $127.0 million decrease in Evergy's and Westar Energy's AROs for a revision in estimate primarily related to Westar Energy's ARO to decommission its 47% ownership share of Wolf Creek. See Note 6 to the consolidated financial statements for additional information.

LIQUIDITY AND CAPITAL RESOURCES

Evergy relies primarily upon cash from operations, short-term borrowings, debt issuances and its existing cash and cash equivalents to fund its capital requirements. Evergy's capital requirements primarily consist of capital expenditures, payment of contractual obligations and other commitments, the payment of dividends to shareholders and the repurchase of common shares.

Capital Sources

Cash Flows from Operations

Evergy's cash flows from operations are driven by the regulated sale of electricity. These cash flows are relatively stable but the timing and level of these cash flows can vary based on weather and economic conditions, future regulatory proceedings, the timing of cash payments made for costs recoverable under regulatory mechanisms and the time such costs are recovered, and unanticipated expenses such as unplanned plant outages and/or storms.

Short-Term Borrowings

As of September 30, 2018, Evergy had $1.8 billion of available borrowing capacity from its master credit facility and receivable sale facilities. Westar Energy's, KCP&L's and GMO's borrowing capacity under the master credit facility also support their issuance of commercial paper. The available borrowing capacity consisted of $449.0 million from Evergy Inc.'s master credit facility, $655.4 million from Westar Energy's credit facilities, $388.1 million from KCP&L's credit facilities and $307.5 million from GMO's credit facilities. See Notes 4 and 9 to the

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consolidated financial statements for more information regarding the receivable sale facilities and master credit facility, respectively. Along with cash flows from operations, Evergy generally uses these liquid resources to meet its day-to-day cash flow requirements.

Long-Term Debt and Equity Issuances

From time to time, Evergy issues long-term debt and/or equity to repay short-term debt, refinance maturing long-term debt and finance growth. As of September 30, 2018 and December 31, 2017, Evergy’s capital structure, excluding short-term debt, was as follows:

	September 30	December 31
	2018	2017
Common equity	59%	51%
Noncontrolling interests	<0%	<0%
Long-term debt, including VIEs	41%	49%

After the completion of its common stock repurchase plan, Evergy anticipates having a common equity to total capitalization ratio of approximately 50%. Following the utilization of its excess cash and cash equivalents discussed further below, Evergy anticipates issuing long-term debt in 2019 in support of its common stock repurchase plan. See "Liquidity and Capital Resources - Capital Requirements - Common Stock Repurchase Plan" for additional information.

Under stipulations with the MPSC and KCC, Evergy, Westar Energy and KCP&L are required to maintain common equity at not less than 35%, 40% and 40%, respectively, of total capitalization. The master credit facility and certain debt instruments of the Evergy Companies also contain restrictions that require the maintenance of certain capitalization and leverage ratios. As of September 30, 2018, the Evergy Companies were in compliance with these covenants.

Significant Debt Issuances

See Note 10 to the consolidated financial statements for information regarding significant debt issuances.

Credit Ratings

The ratings of the Evergy Companies' securities by the credit rating agencies impact their liquidity, including the cost of borrowings under their master credit facility and in the capital markets. The Evergy Companies view maintenance of strong credit ratings as extremely important to the Evergy Companies' access to and cost of debt financing and, to that end, maintain an active and ongoing dialogue with the agencies with respect to results of operations, financial position and future prospects. While a decrease in these credit ratings would not cause any acceleration of the Evergy Companies' debt, it could increase interest charges under revolving credit agreements. A decrease in credit ratings could also have, among other things, an adverse impact, which could be material, on the Evergy Companies' access to capital, the cost of funds, the ability to recover actual interest costs in state regulatory proceedings, the type and amounts of collateral required under supply agreements and Evergy's ability to provide credit support for its subsidiaries.

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As of November 7, 2018, the major credit rating agencies rated the Evergy Companies' securities as detailed in the following table.

	Moody's		S&P Global
	Investors Service		Ratings
Evergy
Outlook		Stable		Stable
Corporate Credit Rating		--		A-
Senior Unsecured Debt		Baa2		BBB+
Westar Energy
Outlook		Stable		Stable
Corporate Credit Rating		Baa1		A-
Senior Secured Debt		A2		A
Commercial Paper		P-2		A-2
KGE
Outlook		Stable		Stable
Corporate Credit Rating		Baa1		A-
Senior Secured Debt		A2		A
KCP&L
Outlook		Stable		Stable
Corporate Credit Rating		Baa1		A-
Senior Secured Debt		A2		A
Senior Unsecured Debt		Baa1		A-
Commercial Paper		P-2		A-2
GMO
Outlook		Stable		Stable
Corporate Credit Rating		Baa2		A-
Senior Unsecured Debt		Baa2		A-
Commercial Paper		P-2		A-2

A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time by the assigning rating agency.

Shelf Registration Statements and Regulatory Authorizations

Evergy

In November 2018, Evergy filed an automatic shelf registration statement providing for the sale of unlimited amounts of securities with the SEC, which expires in November 2021.

Westar Energy

In November 2018, Westar Energy filed an automatic shelf registration statement providing for the sale of unlimited amounts of unsecured debt securities and first mortgage bonds with the SEC, which expires in November 2021.

KCP&L

In November 2018, KCP&L filed an automatic shelf registration statement providing for the sale of unlimited amounts of notes and mortgage bonds with the SEC, which expires in November 2021.

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The following table summarizes the short-term and long-term debt financing authorizations for Westar Energy, KGE, KCP&L and GMO and the remaining amount available under these authorizations as of September 30, 2018.

Type of Authorization	Commission	Expiration Date	Authorization Amount	Available Under Authorization
Westar Energy & KGE			(in millions)
Short-Term Debt	FERC	February 2020	$1,000.0	$673.7
KCP&L
Short-Term Debt	FERC	December 2018	$1,000.0	$790.8
Long-Term Debt	MPSC	September 2019	$750.0	$450.0
GMO
Short-Term Debt	FERC	March 2020	$750.0	$609.6

In October 2018, Westar Energy and KGE, KCP&L and GMO filed requests with FERC to have outstanding at any one time up to $1,250.0 million (combined for both Westar Energy and KGE), $1,250.0 million and $750.0 million in short-term debt instruments, respectively, through December 2020.

In October 2018, GMO filed a request with FERC to issue up to a total of $100.0 million in long-term debt instruments for a two-year authorization period beginning on the date of the FERC approval.

In addition to the above regulatory authorizations, the Westar Energy and KGE mortgages each contain provisions restricting the amount of First Mortgage Bonds (FMBs) that can be issued by each entity. Westar Energy and KGE must comply with these restrictions prior to the issuance of additional FMBs or other secured indebtedness.

Under the Westar Energy mortgage, the issuance of bonds is subject to limitations based on the amount of bondable property additions. In addition, so long as any bonds issued prior to January 1, 1997, remain outstanding, the mortgage prohibits additional FMBs from being issued, except in connection with certain refundings, unless Westar Energy’s unconsolidated net earnings available for interest, depreciation and property retirement (which as defined, does not include earnings or losses attributable to the ownership of securities of subsidiaries), for a period of 12 consecutive months within 15 months preceding the issuance, are not less than the greater of twice the annual interest charges on or 10% of the principal amount of all FMBs outstanding after giving effect to the proposed issuance. As of September 30, 2018, $369.5 million principal amount of additional FMBs could be issued under the most restrictive provisions in the mortgage, except in connection with certain refundings.

Under the KGE mortgage, the amount of FMBs authorized is limited to a maximum of $3.5 billion and the issuance of bonds is subject to limitations based on the amount of bondable property additions. In addition, the mortgage prohibits additional FMBs from being issued, except in connection with certain refundings, unless KGE’s net earnings before income taxes and before provision for retirement and depreciation of property for a period of 12 consecutive months within 15 months preceding the issuance are not less than either two and one-half times the annual interest charges on or 10% of the principal amount of all KGE FMBs outstanding after giving effect to the proposed issuance. As of September 30, 2018, approximately $2.5 billion principal amount of additional KGE FMBs could be issued under the most restrictive provisions in the mortgage, except in connection with certain refundings.

Cash and Cash Equivalents

At September 30, 2018, Evergy had approximately $679.7 million of cash and cash equivalents on hand. Under the Amended Merger Agreement, Great Plains Energy was required to have not less than $1.25 billion in cash and cash equivalents on its balance sheet at the closing of the merger with Westar Energy. Year to date September 30,

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2018, Evergy utilized this excess cash to repurchase $486.1 million of common stock. Evergy anticipates that its remaining excess cash will also be returned to shareholders through the repurchase of common stock.

Capital Requirements

Capital Expenditures

Evergy requires significant capital investments and expects to need cash primarily for utility construction programs designed to improve and expand facilities related to providing electric service, which include, but are not limited to, expenditures to develop new transmission lines and improvements to power plants, transmission and distribution lines and equipment.

Evergy's anticipated capital expenditures for the next several years were reported in the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K. There have been no material changes with regard to these anticipated capital expenditures.

Contractual Obligations and Other Commitments

In the course of its business activities, the Evergy Companies enter into a variety of contracts and commercial commitments. Some of these result in direct obligations reflected on Evergy's consolidated balance sheets while others are commitments, some firm and some based on uncertainties, not reflected in Evergy's underlying consolidated financial statements. There have been no material changes with regards to the contractual obligations and commitments disclosed in Supplemental Capital Requirements and Liquidity Information in MD&A in the Great Plains Energy and KCP&L combined 2017 Form 10-K and in Contractual Obligations and Commercial Commitments in the Westar Energy 2017 Form 10-K.

Common Stock Dividends

The amount and timing of dividends payable on Evergy's common stock are within the sole discretion of the Evergy Board. The amount and timing of dividends declared by the Evergy Board will be dependent on considerations such as Evergy's earnings, financial position, cash flows, capitalization ratios, regulation, reinvestment opportunities and debt covenants. Evergy targets a long-term dividend payout ratio of 60% to 70% of earnings. See Note 1 to the consolidated financial statements for information on the common stock dividend declared by the Evergy Board in October 2018.

The Evergy Companies also have certain restrictions stemming from statutory requirements, corporate organizational documents, covenants and other conditions that could affect dividend levels. See Note 15 to the consolidated financial statements for further discussion of restrictions on dividend payments.

Common Stock Repurchase Plan

In July 2018, the Evergy Board authorized the repurchase of up to 60 million shares of Evergy's common stock. Although this repurchase authorization has no expiration date, Evergy expects to repurchase the 60 million shares by mid-2020. Year to date September 30, 2018, Evergy had total repurchases of common stock of approximately $486 million and had repurchased 6.9 million shares under the repurchase program, which included shares repurchased under ASR agreements which had not reached final settlement as of September 30, 2018, and are discussed further below. The ASR agreements were entered into in August 2018 with financial institutions and resulted in the initial delivery to Evergy of 6.3 million shares of common stock, representing a partial settlement of the contracts, based on then-current market prices and Evergy paid a total of $450.0 million. One of the ASR agreements reached final settlement in October 2018 and the remaining ASR agreement is expected to settle by the end of November 2018. See Note 15 to the consolidated financial statements for more information regarding Evergy's common stock repurchase program.

Impact of Tax Cuts and Jobs Act

The Tax Cuts and Jobs Act will result in lower operating cash flows for the Evergy Companies as a result of lower customer rates resulting from lower income tax expense recoveries and the settlement of related deferred income tax regulatory liabilities, which are significant. These decreases in operating cash flows are expected to exceed the increase in operating cash flows for the Evergy Companies resulting from the lower corporate federal income tax rate. These net regulatory liabilities will be refunded in future rates by amortizing amounts related to plant

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assets primarily over the remaining useful life of the assets and amortizing the amounts related to the other items over various periods as determined in the Evergy Companies' 2018 rate cases.

Off-Balance Sheet Arrangements

In the ordinary course of business, Evergy and certain of its subsidiaries enter into various agreements providing financial or performance assurance to third parties on behalf of certain subsidiaries. Such agreements include, for example, guarantees and letters of credit. These agreements are entered into primarily to support or enhance the creditworthiness otherwise attributed to a subsidiary on a stand-alone basis, thereby facilitating the extension of sufficient credit to accomplish the subsidiary's intended business purposes. In connection with the closing of the merger, Evergy assumed the guarantees previously provided to GMO by Great Plains Energy. The majority of these agreements guarantee Evergy's own future performance, so a liability for the fair value of the obligation is not recorded.

At September 30, 2018, Evergy has provided $111.3 million of credit support for GMO as follows:

• Evergy direct guarantees to GMO counterparties totaling $17.0 million, which expire in 2020, and

• Evergy's guarantee of GMO long-term debt totaling $94.3 million, which includes debt with maturity dates ranging from 2019 to 2023.

Evergy has also guaranteed GMO's commercial paper program. At September 30, 2018, GMO had $140.4 million of commercial paper outstanding. None of the guaranteed obligations are subject to default or prepayment if GMO's credit ratings were downgraded.

The Evergy Companies also have off-balance sheet arrangements in the form of operating leases and letters of credit entered into in the ordinary course of business.

Cash Flows

The following table presents Evergy's cash flows from operating, investing and financing activities.

Year to Date September 30	2018			2017
	(in millions)
Cash flows from operating activities	$	1,191.6		$	742.7
Cash flows from (used in) investing activities	574.8			(581.4		)
Cash flows used in financing activities	(1,090.1		)	(161.0		)

Cash Flows from Operating Activities

Evergy's cash flows from operating activities increased$448.9 million year to date September 30, 2018, compared to the same period in 2017, primarily driven by a $554.2 million increase due to the inclusion of KCP&L's and GMO's cash flows from operating activities beginning in June 2018; partially offset by $35.6 million of merger success fees paid by Evergy and Westar Energy upon the completion of the merger; an increase of $16.0 million in Wolf Creek refueling outage costs paid by Westar Energy related to the outage that concluded in May 2018 and a $10.4 million increase in Westar Energy pension and post-retirement contributions.

Cash Flows from Investing Activities

Evergy's cash flows from investing activities increased $1,156.2 million year to date September 30, 2018, compared to the same period in 2017, primarily due to the inclusion of $1,154.2 million of cash acquired from Great Plains Energy as of the merger date.

Cash Flows used in Financing Activities

Evergy's cash flows used in financing activities increased$929.1 million year to date September 30, 2018, compared to the same period in 2017, primarily due to the repurchase of common stock of $486.1 million as a result of Evergy's share repurchase program in 2018; a $296.2 million decrease in Westar Energy long-term debt proceeds and an increase in cash dividends paid of $184.1 million due to an increase in outstanding shares of

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common stock following the close of the merger and a $0.06 per share increase in the quarterly dividend paid in September 2018.

WESTAR ENERGY, INC.

MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS

The below results of operations and related discussion for Westar Energy is presented in a reduced disclosure format in accordance with General Instruction (H)(2)(a) to Form 10-Q.

The following table summarizes Westar Energy's comparative results of operations.

	Year to Date September 30
	2018			2017			Change
	(millions)
Operating revenues	$	2,015.9		$	1,976.2		$	39.7
Fuel and purchased power	463.2			415.4			47.8
SPP network transmission costs	194.4			185.0			9.4
Other operating expenses	620.2			542.0			78.2
Depreciation and amortization	281.6			277.3			4.3
Income from operations	456.5			556.5			(100.0		)
Other income (expense), net	(31.6		)	(20.4		)	(11.2		)
Interest expense	132.1			128.2			3.9
Income tax expense (benefit)	(22.0		)	112.6			(134.6		)
Equity in earnings of equity method investees, net of income taxes	3.7			4.9			(1.2		)
Net income	318.5			300.2			18.3
Less: Net income attributable to noncontrolling interests	7.6			10.2			(2.6		)
Net income attributable to Westar Energy, Inc.	$	310.9		$	290.0		$	20.9

Westar Energy Utility Gross Margin and MWh Sales

The following table summarizes Westar Energy's utility gross margin and MWhs sold.

	Revenues and Expenses									MWhs Sold
Year to Date September 30	2018			2017			Change			2018	2017	Change
Retail revenues	(millions)									(thousands)
Residential	$	671.9		$	626.8		$	45.1		5,349	4,828	521
Commercial	542.8			543.4			(0.6		)	5,797	5,588	209
Industrial	297.2			316.0			(18.8		)	4,275	4,319	(44	)
Other retail revenues	15.3			17.2			(1.9		)	45	56	(11	)
Total electric retail	1,527.2			1,503.4			23.8			15,466	14,791	675
Wholesale revenues	263.7			256.2			7.5			7,560	7,612	(52	)
Transmission revenues	216.3			213.0			3.3			N/A	N/A	N/A
Other revenues	8.7			3.6			5.1			N/A	N/A	N/A
Operating revenues	2,015.9			1,976.2			39.7			23,026	22,403	623
Fuel and purchased power	(463.2		)	(415.4		)	(47.8		)
SPP network transmission costs	(194.4		)	(185.0		)	(9.4		)
Utility gross margin (a)	$	1,358.3		$	1,375.8		$	(17.5	)

^(a)  Utility gross margin is a non-GAAP financial measure.  See explanation of utility gross margin under Evergy's Results of Operations.

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Westar Energy's utility gross margin decreased$17.5 million year to date September 30, 2018, compared to the same period in 2017, driven by:

• a $66.3 million refund obligation for the change in the corporate income tax rate caused by the passage of the Tax Cuts and Jobs Act. See Note 17 to the consolidated financial statements for additional information; and

• a $28.9 million obligation for one-time and annual bill credits as a result of conditions in the KCC merger order. See Note 2 to the consolidated financial statements for additional information; partially offset by

• a $77.7 million increase primarily due to higher retail sales driven by warmer spring and summer weather and colder winter weather. For year to date September 30, 2018, compared to the same period in 2017, cooling degree days increased 31% and heating degree days increased 27%.

Westar Energy Other Operating Expenses (including operating and maintenance expense and taxes other than income tax)

Westar Energy's other operating expenses increased$78.2 millionyear to dateSeptember 30, 2018, compared to the same period in 2017, primarily driven by:

• $47.8 million of merger-related costs incurred following the close of the merger in June 2018, consisting of:

◦ $40.7 million of change in control payments, voluntary severance and the recording of unrecognized equity compensation costs and the incremental fair value associated with the vesting of outstanding Westar Energy equity compensation awards in accordance with the Amended Merger Agreement; and

◦ $20.4 million of merger consulting fees and fees for other outside services incurred, primarily consisting of merger success fees; partially offset by

◦ a $13.3 million decrease in operating and maintenance expense due to the net reallocation of incurred merger transition costs between Westar Energy, Evergy, KCP&L and GMO and the subsequent deferral of these transition costs to a regulatory asset in June 2018 for future recovery by Westar Energy in accordance with the KCC merger order;

• $12.3 million of obsolete inventory write-offs for Westar Energy's Unit 7 at Tecumseh Energy Center, Units 3 and 4 at Murray Gill Energy Center and Units 1 and 2 at Gordon Evans Energy Center, which were retired in the fourth quarter of 2018; and

• a $5.5 million increase due to Westar Energy's 47% share of voluntary severance expenses incurred related to the Wolf Creek voluntary exit program.

Westar Energy Other Income (Expense), Net

Westar Energy's other expense, net increased $11.2 million year to date September 30, 2018, compared to the same period in 2017, primarily driven by:

• a $3.9 million increase in pension non-service costs; and

• a $3.9 million decrease in investment earnings primarily due to a decrease in interest and dividend income.

Westar Energy Income Tax Expense

Westar Energy's income tax expense decreased$134.6 millionyear to dateSeptember 30, 2018, compared to the same period in 2017, primarily driven by:

• a $53.2 million decrease related to the revaluation of deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger;

• a $47.5 million decrease due to lower pre-tax income; and

• a $38.1 million decrease as a result of the decrease in the federal statutory income tax rate in 2018.

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KANSAS CITY POWER & LIGHT COMPANY

MANAGEMENT'S NARRATIVE ANALYSIS OF RESULTS OF OPERATIONS

The below results of operations and related discussion for KCP&L is presented in a reduced disclosure format in accordance with General Instruction (H)(2)(a) to Form 10-Q.

The following table summarizes KCP&L's comparative results of operations.

	Year to Date September 30
	2018			2017			Change
	(millions)
Operating revenues	$	1,408.9		$	1,474.3		$	(65.4	)
Fuel and purchased power	392.4			367.3			25.1
Other operating expenses	442.4			490.9			(48.5		)
Depreciation and amortization	209.0			199.9			9.1
Income from operations	365.1			416.2			(51.1		)
Other income (expense), net	(19.1		)	(33.8		)	14.7
Interest expense	100.6			105.5			(4.9		)
Income tax expense	80.3			99.0			(18.7		)
Net income	$	165.1		$	177.9		$	(12.8	)

KCP&L Utility Gross Margin and MWh Sales

The following table summarizes KCP&L's utility gross margin and MWhs sold.

	Revenues and Expenses									MWhs Sold
Year to Date September 30	2018			2017			Change			2018	2017	Change
Retail revenues	(millions)									(thousands)
Residential	$	585.4		$	573.7		$	11.7		4,480	4,034	446
Commercial	609.2			651.1			(41.9		)	5,931	5,730	201
Industrial	105.4			118.9			(13.5		)	1,333	1,330	3
Other retail revenues	7.7			8.3			(0.6		)	56	53	3
Total electric retail	1,307.7			1,352.0			(44.3		)	11,800	11,147	653
Wholesale revenues	38.5			74.7			(36.2		)	3,753	5,198	(1,445	)
Transmission revenues	11.0			12.2			(1.2		)	N/A	N/A	N/A
Other revenues	51.7			35.4			16.3			N/A	N/A	N/A
Operating revenues	1,408.9			1,474.3			(65.4		)	15,553	16,345	(792	)
Fuel and purchased power	(392.4		)	(367.3		)	(25.1		)
Utility gross margin (a)	$	1,016.5		$	1,107.0		$	(90.5	)

^(a)  Utility gross margin is a non-GAAP financial measure.  See explanation of utility gross margin under Evergy's Results of Operations.

KCP&L's utility gross margin decreased$90.5 million year to date September 30, 2018, compared to the same period in 2017, driven by:

• a $64.5 million refund obligation for the change in the corporate income tax rate caused by the passage of the Tax Cuts and Jobs Act. See Note 17 to the consolidated financial statements for additional information;

• $56.0 million of sales taxes and franchise fees collected from KCP&L Missouri customers in 2017, which as part of KCP&L's adoption of ASC 606, are now presented net in revenue in 2018; and

• a $24.3 million obligation for one-time and annual bill credits as a result of conditions in the MPSC and KCC merger orders. See Note 2 to the consolidated financial statements for additional information; partially offset by

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• a $54.3 million increase primarily due to higher retail sales driven by warmer spring and summer weather and colder winter weather. For year to date September 30, 2018, compared to the same period in 2017, cooling degree days increased 34% and heating degree days increased 30%.

KCP&L Other Operating Expenses (including operating and maintenance expense and taxes other than income tax)

KCP&L's other operating expenses decreased$48.5 millionyear to dateSeptember 30, 2018, compared to the same period in 2017, primarily driven by:

• a $55.8 million decrease in taxes other than income tax due to sales taxes and franchise fees collected from KCP&L Missouri customers in 2017, which, as part of KCP&L's adoption of ASC 606, Revenue from Contracts with Customers, are now presented net in revenue in 2018; and

• a $23.9 million decrease in operating and maintenance expense due to the net reallocation of incurred merger transition costs between KCP&L, Evergy, Westar Energy and GMO and the subsequent deferral of these transition costs to a regulatory asset for future recovery by KCP&L in accordance with the KCC and MPSC merger orders; partially offset by

• a $9.0 million increase due to KCP&L's 47% share of voluntary severance expenses incurred related to the Wolf Creek voluntary exit program as well as KCP&L's Local 412 union voluntary exit program;

• a $5.4 million increase in transmission and distribution operating and maintenance expense; and

• a $3.6 million increase in injuries and damages expense primarily due to an increase in estimated worker's compensation losses.

KCP&L Other Income (Expense), Net

KCP&L's other expense, net decreased $14.7 million year to dateSeptember 30, 2018, compared to the same period in 2017, primarily driven by a $14.6 million decrease in pension non-service costs due to KCP&L's adoption of ASU 2017-07, Compensation-Retirement Benefits, which requires the non-service cost components to be reported separately from service costs and outside of a subtotal of income from operations. For retrospective application of the 2017 non-service cost components, KCP&L utilized the practical expedient that allows for the use of the amounts disclosed in a company's pension and other post-retirement benefit plan footnote as the estimation basis for retrospective presentation. The 2017 amounts disclosed in KCP&L's pension and other post-retirement benefit plan footnote are presented prior to the effects of capitalization and sharing with joint owners of power plants. See Note 1 and Note 7 to the consolidated financial statements for additional information.

KCP&L Income Tax Expense

KCP&L's income tax expense decreased$18.7 millionyear to dateSeptember 30, 2018, compared to the same period in 2017, primarily driven by:

• a $31.5 million decrease in income tax expense as a result of the decrease in the federal statutory income tax rate in 2018;

• a $15.5 million decrease related to the revaluation of deferred income tax assets and liabilities as a result of the enactment of Missouri state income tax reform in June 2018;

• a $13.1 million decrease in income tax expense due to an increase in flow-through items primarily consisting of amortization of regulatory liabilities for excess deferred income taxes generated as a result of the enactment of the Tax Cuts and Jobs Act in December 2017; and

• a $12.3 million decrease due to lower pre-tax income; partially offset by

• a $51.0 million increase related to the revaluation of deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

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ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

In the ordinary course of business, Evergy faces risks that are either non-financial or non-quantifiable. Such risks principally include business, legal, operational and credit risks and are not represented in the following analysis. See Part II, Item 1A, Risk Factors and Part I, Item 2, MD&A for further discussion of risk factors.

The Evergy Companies are exposed to market risks associated with commodity price and supply, interest rates and equity prices. Commodity price risk is the potential adverse price impact related to the purchase or sale of electricity and energy-related products. Credit risk is the potential adverse financial impact resulting from non-performance by a counterparty of its contractual obligations. Interest rate risk is the potential adverse financial impact related to changes in interest rates. In addition, Evergy's investments in trusts to fund nuclear plant decommissioning and to fund non-qualified retirement benefits give rise to security price risk.

Management has established risk management policies and strategies to reduce the potentially adverse effects that the volatility of the markets may have on Evergy's operating results. During the ordinary course of business, under the direction and control of an internal risk committee, the Evergy Companies' hedging strategies are reviewed to determine the hedging approach deemed appropriate based upon the circumstances of each situation. Though management believes its risk management practices are effective, it is not possible to identify and eliminate all risk. Evergy could experience losses, which could have a material adverse effect on its results of operations or financial position, due to many factors, including unexpectedly large or rapid movements or disruptions in the energy markets, regulatory-driven market rule changes and/or bankruptcy or non-performance of customers or counterparties, and/or failure of underlying transactions that have been hedged to materialize.

Hedging Strategies

From time to time, Evergy utilizes derivative instruments to execute risk management and hedging strategies. Derivative instruments, such as futures, forward contracts, swaps or options, derive their value from underlying assets, indices, reference rates or a combination of these factors. These derivative instruments include negotiated contracts, which are referred to as over-the-counter derivatives, and instruments listed and traded on an exchange.

Commodity Price Risk

The Evergy Companies engage in the wholesale and retail sale of electricity and are exposed to risks associated with the price of electricity and other energy-related products. Exposure to these risks is affected by a number of factors including the quantity and availability of fuel used for generation and the quantity of electricity customers consume. Customers' electricity usage could also vary from year to year based on the weather or other factors. Quantities of fossil fuel used for generation vary from year to year based on the availability, price and deliverability of a given fuel type as well as planned and unplanned outages at facilities that use fossil fuels. Evergy's exposure to fluctuations in these factors is limited by the cost-based regulation of its regulated operations in Kansas and Missouri as these operations are typically allowed to recover substantially all of these costs through cost-recovery mechanisms, primarily through fuel recovery mechanisms. While there may be a delay in timing between when these costs are incurred and when they are recovered through rates, changes from year to year generally do not have a material impact on operating results.

Interest Rate Risk

Evergy manages interest rate risk and short- and long-term liquidity by limiting its exposure to variable interest rate debt to a percentage of total debt, diversifying maturity dates and, from time to time, entering into interest rate hedging transactions. At September 30, 2018, 4% of Evergy's long-term debt was variable rate debt. Evergy computes and presents information regarding the sensitivity to changes in interest rates for variable rate debt and current maturities of fixed rate debt by assuming a 100 basis point change in the current interest rates applicable to such debt over the remaining time the debt is outstanding.

Evergy had $1,684.3 million of variable rate debt, including notes payable and commercial paper, and current maturities of fixed rate debt as of September 30, 2018. A 100 basis point change in interest rates applicable to this debt would impact income before income taxes on an annualized basis by approximately $13.6 million.

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Credit Risk

Evergy is exposed to counterparty credit risk largely in the form of accounts receivable from its retail and wholesale electric customers and through executory contracts with market risk exposure. The credit risk associated with accounts receivable from retail and wholesale customers is largely mitigated by Evergy's large number of individual customers spread across diverse customer classes and the ability to recover bad debt expense in customer rates. The Evergy Companies maintain credit policies and employ credit risk control mechanisms, such as letters of credit, when necessary to minimize their overall credit risk and monitor exposure.

Investment Risk

Evergy maintains trust funds, as required by the NRC, to fund its 94% share of decommissioning the Wolf Creek nuclear power plant and also maintains trusts to fund pension benefits as well as certain non-qualified retirement benefits. As of September 30, 2018, these funds were primarily invested in a diversified mix of equity and debt securities and reflected at fair value on Evergy's balance sheet. The equity securities in the trusts are exposed to price fluctuations in equity markets and the value of debt securities are exposed to changes in interest rates and other market factors.

As nuclear decommissioning costs are currently recovered in customer rates, Evergy defers both realized and unrealized gains and losses for the vast majority of these securities as an offset to its regulatory asset for decommissioning Wolf Creek and as such, fluctuations in the value of these securities do not have a material impact on Evergy's earnings. A significant decline in the value of pension or non-qualified retirement assets could require Evergy to increase funding of its pension plans in future periods, which could adversely affect cash flows in those periods. In addition, a decline in the fair value of these plan assets, in the absence of additional cash contributions to the plans by Evergy, could increase the amount of pension cost required to be recorded in future periods by Evergy.

ITEM 4. CONTROLS AND PROCEDURES

EVERGY

Disclosure Controls and Procedures

Evergy carried out an evaluation of its disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange Act)).  This evaluation was conducted under the supervision, and with the participation, of Evergy's management, including the chief executive officer and chief financial officer, and Evergy's disclosure committee.  Based upon this evaluation, the chief executive officer and chief financial officer of Evergy have concluded as of the end of the period covered by this report that the disclosure controls and procedures of Evergy were effective at a reasonable assurance level. 

Changes in Internal Control Over Financial Reporting

There has been no change in Evergy’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) that occurred during the quarterly period ended September 30, 2018, that has materially affected, or is reasonably likely to materially affect, its internal control over financial reporting.

WESTAR ENERGY

Disclosure Controls and Procedures

Westar Energy carried out an evaluation of its disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act).  This evaluation was conducted under the supervision, and with the participation, of Westar Energy's management, including the chief executive officer and chief financial officer, and Westar Energy's disclosure committee.  Based upon this evaluation, the chief executive officer and chief financial officer of Westar Energy have concluded as of the end of the period covered by this report that the disclosure controls and procedures of Westar Energy were effective at a reasonable assurance level.

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Changes in Internal Control Over Financial Reporting

There has been no change in Westar Energy's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) that occurred during the quarterly period ended September 30, 2018, that has materially affected, or is reasonably likely to materially affect, its internal control over financial reporting.

KCP&L

Disclosure Controls and Procedures

KCP&L carried out an evaluation of its disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act).  This evaluation was conducted under the supervision, and with the participation, of KCP&L's management, including the chief executive officer and chief financial officer, and KCP&L's disclosure committee.  Based upon this evaluation, the chief executive officer and chief financial officer of KCP&L have concluded as of the end of the period covered by this report that the disclosure controls and procedures of KCP&L were effective at a reasonable assurance level.

Changes in Internal Control Over Financial Reporting

There has been no change in KCP&L's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) that occurred during the quarterly period ended September 30, 2018, that has materially affected, or is reasonably likely to materially affect, its internal control over financial reporting.

PART II - OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

Other Proceedings

The Evergy Companies are parties to various lawsuits and regulatory proceedings in the ordinary course of their respective businesses.  For information regarding material lawsuits and proceedings, see Notes 2, 5 and 12 to the consolidated financial statements.  Such information is incorporated herein by reference.

ITEM 1A. RISK FACTORS

Actual results in future periods for the Evergy Companies could differ materially from historical results and the forward-looking statements contained in this report. The business of the Evergy Companies is influenced by many factors that are difficult to predict, involve uncertainties that may materially affect actual results and are often beyond their control. Additional risks and uncertainties not presently known or that management currently believes to be immaterial may also adversely affect the Evergy Companies. Factors that might cause or contribute to such differences include, but are not limited to, those discussed in Part I, Item 1A, Risk Factors included in the 2017 Form 10-K for each of Great Plains Energy, KCP&L and Westar Energy, as well as Quarterly Reports on Form 10-Q and Current Reports on Form 8-K filed by Evergy, KCP&L and Westar Energy. There have been no material changes with regards to those risk factors. This information, as well as the other information included in this report and in the other documents filed with the SEC, should be carefully considered before making an investment in the securities of the Evergy Companies. Risk factors of KCP&L and Westar Energy are also risk factors of the Evergy Companies.

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ITEM 2.  UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Purchases of Equity Securities

The following table provides information regarding purchases by Evergy of its equity securities that are registered pursuant to Section 12 of the Exchange Act during the three months ended September 30, 2018.

Issuer Purchases of Equity Securities
Month	Total Number of Shares (or Units) Purchased(a)	Average Price Paid per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs(a)
July 1 - 31	—	$	—	—	N/A
August 1 - 31	6,496,849	(b)		6,496,849	53,503,151
September 1 - 30	398,224	57.25		398,224	53,104,927
Total	6,895,073	(b)		6,895,073	53,104,927

^(a) In July 2018, the Evergy Board authorized the repurchase of up to 60 million shares of Evergy's common stock with no expiration date. Evergy expects to repurchase the 60 million shares by mid-2020. See Note 15 to the consolidated financial statements for additional information on Evergy's common stock repurchase plan.

^(b) In August 2018, Evergy entered into two ASR agreements to purchase $450.0 million of Evergy common stock and through which 6.3 million shares were delivered in August 2018, representing a partial settlement of the contracts. In October 2018, one of the ASR agreements was settled early at the option of the financial institution, which resulted in the delivery of 848,226 additional shares of Evergy common stock at no additional cost. The average price paid per share for shares delivered under this ASR was $56.51. The final number of shares of Evergy common stock that will ultimately be delivered to Evergy under the remaining ASR, and therefore the average price paid per share, will be determined at the final settlement of the ASR in November 2018. In addition, Evergy repurchased 229,441 shares of common stock in the open market at an average price of $57.35.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.  MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.  OTHER INFORMATION

Evergy’s 2019 annual meeting of shareholders will be held May 7, 2019. Information regarding the time and location of the meeting, and other information relating to the meeting, will be included in a notice of annual meeting and proxy statement that will be sent to shareholders. Shareholder proposals to be included in the proxy statement related to the annual meeting must be received by Evergy's Corporate Secretary at 1200 Main Street, Kansas City, Missouri 64105, Attention: Heather A. Humphrey, no later than 5:00 p.m. CT on December 2, 2018. Notice of intent to introduce a proposal at the annual meeting not included in the proxy statement, or to nominate a director for election at the annual meeting, must also be received by Evergy's Corporate Secretary at 1200 Main Street, Kansas City, Missouri 64105, Attention: Heather A. Humphrey, not earlier than 8:00 a.m. CT on February 6, 2019, and not later than 5:00 p.m. CT on March 8, 2019. Proposals and notices must comply with federal law and the requirements in Evergy's amended and restated articles of incorporation and amended and restated by-laws.

Investors should note that the Evergy Companies announce material financial information in SEC filings, press releases and public conference calls. In accordance with SEC guidance, Evergy, Westar Energy and KCP&L may also use the Investor Relations section of Evergy's website (www.evergyinc.com) to communicate with investors about the Evergy Companies. It is possible that the financial and other information posted there could be deemed

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material information. The Investors Relations section of the website also contains historical financial and other information relating to Great Plains Energy, Westar Energy and KCP&L. The information on the website is not part of this document.

ITEM 6. EXHIBITS

Exhibit Number		Description of Document	Registrant
10.1	*	Credit Agreement, dated as of September 18, 2018, among Evergy, Inc., Kansas City Power & Light Company, KCP&L Greater Missouri Operations Company, Westar Energy, Inc., the several lenders from time to time parties thereto, Wells Fargo Bank, National Association, as Administrative Agent, Swingline Lender and Issuing Lender and the other issuing lenders and agents party thereto (filed as Exhibit 10.1 to Evergy, Inc.’s Current Report on Form 8-K filed on September 18, 2018 (File No. 001-32206)).	Evergy Westar Energy KCP&L
10.2	+	Form of Indemnification Agreement.	Evergy Westar Energy KCP&L
10.3	+	Annual Incentive Plan.	Evergy Westar Energy KCP&L
31.1		Rule 13a-14(a)/15d-14(a) Certification of Terry Bassham.	Evergy
31.2		Rule 13a-14(a)/15d-14(a) Certification of Anthony D. Somma.	Evergy
31.3		Rule 13a-14(a)/15d-14(a) Certification of Terry Bassham.	KCP&L
31.4		Rule 13a-14(a)/15d-14(a) Certification of Anthony D. Somma.	KCP&L
31.5		Rule 13a-14(a)/15d-14(a) Certification of Terry Bassham.	Westar Energy
31.6		Rule 13a-14(a)/15d-14(a) Certification of Anthony D. Somma.	Westar Energy
32.1	**	Section 1350 Certifications.	Evergy
32.2	**	Section 1350 Certifications.	KCP&L
32.3	**	Section 1350 Certifications.	Westar Energy
101.INS		XBRL Instance Document.	Evergy Westar Energy KCP&L
101.SCH		XBRL Taxonomy Extension Schema Document.	Evergy Westar Energy KCP&L
101.CAL		XBRL Taxonomy Extension Calculation Linkbase Document.	Evergy Westar Energy KCP&L
101.DEF		XBRL Taxonomy Extension Definition Linkbase Document.	Evergy Westar Energy KCP&L
101.LAB		XBRL Taxonomy Extension Labels Linkbase Document.	Evergy Westar Energy KCP&L

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Exhibit Number	Description of Document	Registrant
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.	Evergy Westar Energy KCP&L

* Filed with the SEC as exhibits to prior SEC filings and are incorporated herein by reference and made a part hereof. The SEC filings and the exhibit number of the documents so filed, and incorporated herein by reference, are stated in parenthesis in the description of such exhibit.

** Furnished and shall not be deemed filed for the purpose of Section 18 of the Exchange Act. Such document shall not be incorporated by reference into any registration statement or other document pursuant to the Exchange Act or the Securities Act of 1933, as amended, unless otherwise indicated in such registration statement or other document.

+ Indicates management contract or compensatory plan or arrangement.

Copies of any of the exhibits filed with the SEC in connection with this document may be obtained from Evergy, Westar Energy or KCP&L, as applicable, upon written request.

The registrants agree to furnish to the SEC upon request any instrument with respect to long-term debt as to which the total amount of securities authorized does not exceed 10% of total assets of such registrant and its subsidiaries on a consolidated basis.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, Evergy, Inc., Westar Energy, Inc. and Kansas City Power & Light Company have duly caused this report to be signed on their behalf by the undersigned, thereunto duly authorized.

		EVERGY, INC.
Dated:	November 7, 2018	By:  /s/ Anthony D. Somma
		(Anthony D. Somma)
		(Executive Vice President and Chief Financial Officer)

		WESTAR ENERGY, INC.
Dated:	November 7, 2018	By:  /s/ Anthony D. Somma
		(Anthony D. Somma)
		(Executive Vice President and Chief Financial Officer)

		KANSAS CITY POWER & LIGHT COMPANY
Dated:	November 7, 2018	By:  /s/ Anthony D. Somma
		(Anthony D. Somma)
		(Executive Vice President and Chief Financial Officer)

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EX-10.2

Exhibit 10.2

INDEMNIFICATION AGREEMENT

This Indemnification Agreement (this “Agreement”) is made and entered into as of the ____ day of ______, 20__, by and between Evergy, Inc., a Missouri corporation (the “Company”) and _________ (“Indemnitee”).

W I T N E S S E T H:

WHEREAS, Indemnitee is either a member of the Board of Directors of the Company (the “Board”) or an officer of the Company, or both, and in such capacity or capacities is performing a valuable service for the Company;

WHEREAS, the Company is aware that competent and experienced persons are increasingly reluctant to serve as directors or officers of corporations unless they are protected by comprehensive indemnification and liability insurance, due to increased exposure to litigation costs and risks resulting from their service to such corporations, and because the exposure frequently bears no reasonable relationship to the compensation of such directors and officers;

WHEREAS, the Board has concluded that, to retain and attract talented and experienced individuals to serve or continue to serve as officers or directors of the Company, and to encourage such individuals to take the business risks necessary for the success of the Company, it is necessary for the Company contractually to indemnify and advance expenses to directors and officers and to assume for itself, to the fullest extent permitted by law, expenses and damages related to claims against such officers and directors in connection with their service to the Company and its subsidiaries;

WHEREAS, the Amended and Restated Articles of Incorporation (the “Articles of Incorporation”) of the Company provide that the Company shall indemnify and advance expenses to all directors and officers of the Company in the manner set forth therein and to the fullest extent permitted by applicable law. In addition, the Missouri General Business and Corporate Law (as it may be amended from time to time, the “MGBCL”) empowers the Company to enter into agreements to indemnify its officers, directors, employees and agents, and persons who serve, at the request of the Company, as directors, officers, employees or agents of other corporations, partnerships, joint ventures, trusts or other enterprises, and expressly provides that the indemnification provided by the MGBCL is not exclusive;

WHEREAS, the Company desires and has requested Indemnitee to serve or continue to serve as a director or officer of the Company free from undue concern for claims for damages arising out of or related to such services to the Company;

WHEREAS, Indemnitee is willing to serve, continue to serve and to take on additional service for or on behalf of the Company on the condition that he or she be indemnified as herein provided;

WHEREAS, this Agreement is a supplement to and in furtherance of the rights to indemnification and advancement of expenses and related rights provided in the Articles of

Incorporation, the Amended and Restated Bylaws (the “By-Laws”) and any resolutions adopted pursuant thereto, and shall not be deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder; and

WHEREAS, it is intended that Indemnitee shall be paid promptly by the Company all amounts necessary to effectuate in full the rights provided herein.

NOW, THEREFORE, in consideration of the premises and the covenants contained herein, the Company and Indemnitee do hereby covenant and agree as follows:

ARTICLE 1

Certain Definitions

(a)As used in this Agreement:

“Change of Control” means any one of the following circumstances occurring after the date hereof: (i) any “person” or “group” (as such terms are used in Sections 13(d) and 14(d) of the Exchange Act) shall have become, without prior approval of the Board by approval of a majority of the Continuing Directors, other than solely as a result of a reduction in the aggregate number of outstanding securities entitled to vote generally in the election of directors, the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing 20% or more of the combined voting power of the Company’s then outstanding voting securities (provided that, for purposes of this clause (i), the term “person” shall exclude (x) the Company, (y) any trustee or other fiduciary holding securities under an employee benefit plan of the Company, and (z) any corporation owned, directly or indirectly, by the shareholders of the Company in substantially the same proportions as their ownership of stock of the Company); (ii) there occurs a merger or consolidation of the Company with any other entity, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior to such merger or consolidation continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity) more than 51% of the combined voting power of the voting securities of the surviving entity outstanding immediately after such merger or consolidation and with the power to elect at least a majority of the board of directors or other governing body of such surviving entity; (iii) all or substantially all the assets of the Company are sold or disposed of in a transaction or series of related transactions; (iv) the approval by the shareholders of the Company of a complete liquidation of the Company; or (v) the Continuing Directors cease for any reason to constitute at least a majority of the members of the Board.

“Continuing Director” means (i) each director on the Board on the date hereof or (ii) any new director whose election or nomination for election by the Board or the Company’s shareholders was approved by a vote of at least two-thirds of the directors then still in office who were directors on the date hereof or whose election or nomination was so approved.

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“Corporate Status” means the status of a person who is or was a director, officer, trustee, general partner, managing member, fiduciary, board of directors’ committee member, employee or agent of the Company or of any other Enterprise.

“Disinterested Director” means a director of the Company who is not and was not a party to the Proceeding in respect of which indemnification is sought by Indemnitee.

“Enterprise” means the Company and any other corporation, limited liability company, partnership, joint venture, trust, employee benefit plan or other enterprise of which Indemnitee is or was serving at the request of the Company as a director, officer, trustee, general partner, managing member, fiduciary, board of directors’ committee member, employee or agent.

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“Expenses” means all reasonable direct and indirect costs, including attorneys’ fees, retainers, disbursements of counsel, court costs, filing fees, transcripts, fees of experts, witness fees, travel expenses, duplicating and imaging costs, printing and binding costs, telephone charges, computer legal research costs, postage, delivery service fees, fees and expenses of third-party vendors, and all other out-of-pocket costs, disbursements or expenses incurred in connection with (i) prosecuting, defending, preparing to prosecute or defend, investigating, being or preparing to be a witness in, or otherwise participating in, a Proceeding or (ii) establishing or enforcing a right to indemnification or advancement of expenses under this Agreement, the Articles of Incorporation, By-Laws, applicable law or otherwise. Expenses also shall include Expenses incurred in connection with any appeal resulting from any Proceeding, including the premium, security for, and other costs relating to any cost bond, supersedeas bond, or other appeal bond or its equivalent. Expenses, however, shall not include any Liabilities.

“Independent Counsel” means a law firm, or a member of a law firm, that is experienced in matters of corporate law and neither currently is, nor in the five years previous to its selection or appointment has been, retained to represent (i) the Company or Indemnitee in any matter material to either such party (other than with respect to matters concerning Indemnitee under this Agreement or of other indemnitees under similar indemnification agreements) or (ii) any other party to the Proceeding giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not include any person who, under the applicable standards of professional conduct then prevailing, would have a conflict of interest in representing either the Company or Indemnitee in an action to determine Indemnitee’s rights under this Agreement.

“Liabilities” means any losses or liabilities, including any judgments, fines, ERISA excise taxes and penalties, penalties and amounts paid in settlement, arising out of or in connection with any Proceeding (including all interest, assessments and other charges paid or payable in connection with or in respect of any such judgments, fines, ERISA excise taxes and penalties, penalties or amounts paid in settlement).

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“Proceeding” means any threatened, pending or completed action, suit, claim, counterclaim, cross claim, arbitration, alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether civil (including intentional and unintentional tort claims), criminal, administrative or investigative, including any appeal therefrom, and whether instituted by or on behalf of the Company or any other party, in which Indemnitee was, is or will be involved as a party or potential party, non-party witness or otherwise, by reason of the Corporate Status of Indemnitee, by reason of any action taken by Indemnitee while acting in such Corporate Status, or by reason of any inaction on Indemnitee’s part while acting in such Corporate Status, in each case whether not Indemnitee is acting or serving in any such capacity at the time any Liability or Expense is incurred for which indemnification can be provided under this Agreement.

(b)    For the purposes of this Agreement:

References to the “Company” shall include, in addition to the resulting or surviving corporation, any constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger which, if its separate existence had continued, would have had power and authority to indemnify its directors, officers, employees or agents, so that if Indemnitee is or was a director, officer, employee or agent of such constituent corporation or is or was serving at the request of such constituent corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, then Indemnitee shall stand in the same position under the provisions of this Agreement with respect to the resulting or surviving corporation as Indemnitee would have with respect to such constituent corporation if its separate existence had continued.

Reference to “other enterprise” shall include employee benefit plans; references to “fines” shall include any excise tax assessed with respect to any employee benefit plan; references to “serving at the request of the Company” shall include any service as a director, officer, employee or agent of the Company which imposes duties on, or involves services by, such director, officer, employee or agent with respect to an employee benefit plan, its participants or beneficiaries; and a person who acted in good faith and in a manner he or she reasonably believed to be in the best interests of the participants and beneficiaries of an employee benefit plan shall be deemed to have acted in a manner “not opposed to the best interests of the Company” as referred to in the MGBCL.

Reference to “including” shall mean “including, without limitation,” regardless of whether the words “without limitation” actually appear, and references to the words “herein,” “hereof” and “hereunder” and other words of similar import shall refer to this Agreement as a whole and not to any particular paragraph, subparagraph, section, subsection or other subdivision.

ARTICLE 2

Services By Indemnitee

Section 2.01.    Services By Indemnitee. Indemnitee hereby agrees to serve or continue to serve as a director or officer of the Company or of any other Enterprise, as applicable. Indemnitee may at any time or for any reason resign from such position (subject to any other contractual obligation or any obligation imposed by operation of law), in which event the Company shall have

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no obligation under this Agreement to continue Indemnitee in such position. This Agreement shall not be deemed an employment contract between the Company (or any of its subsidiaries or any Enterprise) and Indemnitee. Indemnitee specifically acknowledges that Indemnitee’s employment with the Company (or any of its subsidiaries or any Enterprise), if any, is at will, and the Indemnitee may be discharged at any time for any reason, with or without cause, but without prejudice to any contractual rights Indemnitee may have.

ARTICLE 3

Indemnification

Section 3.01.    General. (a) The Company hereby agrees to and shall indemnify Indemnitee and hold Indemnitee harmless from and against any and all Expenses and Liabilities, in either case, actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with any Proceeding, to the fullest extent permitted by applicable law. The Company’s indemnification obligations set forth in this Section 3.01 shall apply (1) in respect of Indemnitee’s past, present and future service in any Corporate Status and (2) regardless of whether Indemnitee is serving in any Corporate Status at the time any such Expense or Liability is incurred.

For purposes of this Agreement, the meaning of the phrase “to the fullest extent permitted by applicable law” shall include, but not be limited to:

(i)to the fullest extent permitted by the MGBCL, or the corresponding provision of any successor statute, and

(ii)to the fullest extent authorized or permitted by any amendments to or replacements of the MGBCL adopted after the date of this Agreement that increase the extent to which a corporation may indemnify its directors and officers.

(b)    Witness Expenses. Notwithstanding any other provision of this Agreement, to the extent that Indemnitee is, by reason of his or her Corporate Status, a witness in any Proceeding to which Indemnitee is not a party, he or she shall be indemnified against all Expenses actually and reasonably incurred by Indemnitee or on his or her behalf in connection therewith.

(c)    Expenses as a Party Where Wholly or Partly Successful. Notwithstanding any other provisions of this Agreement, to the fullest extent permitted by applicable law, to the extent that Indemnitee is made a party to (or a participant in) any Proceeding and is successful, on the merits or otherwise, in such Proceeding or in defense of any claim, issue or matter therein, in whole or in part, the Company shall indemnify Indemnitee against all Expenses actually and reasonably incurred by him or her in connection therewith. If Indemnitee is not wholly successful in such Proceeding, but is successful, on the merits or otherwise, as to one or more but less than all claims, issues or matters in such Proceeding, the Company shall, to the fullest extent permitted by applicable law, indemnify Indemnitee against all Expenses actually and reasonably incurred by Indemnitee or on his or her behalf in connection with each successfully resolved claim, issue or matter. For purposes of this Section and without limitation, the termination of any claim, issue or matter in such a

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Proceeding by dismissal, with or without prejudice, shall be deemed to be a successful result as to such claim, issue or matter.

Section 3.02.    Exclusions. Notwithstanding any provision of this Agreement and unless Indemnitee ultimately is successful on the merits with respect to any such claim, the Company shall not be obligated under this Agreement to make any indemnity in connection with any claim made against Indemnitee:

(a)    for (i) an accounting of profits made from the purchase and sale (or sale and purchase) by Indemnitee of securities of the Company within the meaning of Section 16(b) of the Exchange Act or similar provisions of state statutory law or common law or (ii) any reimbursement of the Company by Indemnitee of any bonus or other incentive-based or equity-based compensation or of any profits realized by Indemnitee from the sale of securities of the Company, as required in each case under the Exchange Act (including any such reimbursements that arise from an accounting restatement of the Company pursuant to Section 304 of the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”) or Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act, or the payment to the Company of profits arising from the purchase and sale by Indemnitee of securities in violation of Section 306 of the Sarbanes-Oxley Act); or

(b)    except as otherwise provided in Section 6.01(e), in connection with any Proceeding (or any part of any Proceeding) initiated by Indemnitee against the Company (other than any cross claim or counterclaim asserted by the Indemnitee), unless (i) the Board authorized the Proceeding (or any part of any Proceeding) prior to its initiation or (ii) the Company provides the indemnification, in its sole discretion, pursuant to the powers vested in the Company under applicable law.

ARTICLE 4

Advancement Of Expenses; Defense of Claims

Section 4.01.    Advances. The Company shall advance, to the fullest extent permitted by law, any Expenses actually and reasonably incurred by Indemnitee in connection with any Proceeding promptly (and in no circumstances later than thirty (30) days) after the receipt by the Company of each statement requesting such advance from time to time, whether prior to or after final disposition of such Proceeding. Such statement or statements shall reasonably evidence the Expenses incurred by Indemnitee and shall, if and to the extent required by the MGBCL, include or be preceded by a written undertaking on behalf of Indemnitee to repay any Expenses advanced if it shall ultimately be determined that Indemnitee is not entitled to be indemnified by the Company against such Expenses. Advances shall be unsecured and interest free. Advances shall be made without regard to Indemnitee’s ability to repay such amounts and without regard to Indemnitee’s ultimate entitlement to indemnification under the other provisions of this Agreement. Advances shall include any and all reasonable Expenses incurred pursuing an action to enforce this right of advancement or any other right under this Agreement.

Section 4.02.    Defense of Claims. The Company will be entitled to participate in the Proceeding at its own expense. The Company will be entitled to assume the defense of any aspect of the Proceeding that relates to the Indemnitee, with counsel consented to by Indemnitee (such

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consent not to be unreasonably withheld) upon the delivery by the Company to Indemnitee of written notice of the Company’s election to do so. After delivery of such notice, consent to such counsel by Indemnitee and the retention of such counsel by the Company, the Company will not be liable to Indemnitee under this Agreement for any fees or expenses of counsel subsequently incurred by Indemnitee with respect to such Proceeding; provided that (i) Indemnitee shall have the right to employ separate counsel in respect of any Proceeding at Indemnitee’s expense and (ii) if (A) the employment of counsel by Indemnitee has been previously authorized in writing by the Company or (B) Indemnitee shall have reasonably concluded upon the advice of counsel that there is a conflict of interest between the Company and Indemnitee in the conduct of the defense of such Proceeding, then in each such case the fees and expenses of Indemnitee’s separate counsel shall be at the Company’s expense. The Company shall not settle any action, claim or Proceeding (in whole or in part) which would impose any Expense, judgment, fine, penalty or limitation on Indemnitee for which Indemnitee will not be indemnified in full without Indemnitee’s prior written consent, such consent not to be unreasonably withheld.

ARTICLE 5

Procedures For Notification of and Determination of Entitlement To Indemnification

Section 5.01.    Notification; Request For Indemnification. (a) As soon as reasonably practicable after receipt by Indemnitee of written notice that he or she is a party to or a participant (as a witness or otherwise) in any Proceeding or of any other matter in respect of which Indemnitee intends to seek indemnification or advancement of Expenses hereunder, Indemnitee shall provide to the Company written notice thereof, including the nature of and the facts underlying the Proceeding. The omission by Indemnitee to so notify the Company will not relieve the Company from any liability which it may have to Indemnitee hereunder or otherwise, except to the extent (solely with respect to indemnity hereunder) that such failure or delay materially prejudices the Company.

(b)    To obtain indemnification under this Agreement, Indemnitee shall deliver to the Company a written request for indemnification, including therewith such information as is reasonably available to Indemnitee and reasonably necessary to determine Indemnitee’s entitlement to indemnification hereunder. Such request(s) may be delivered from time to time and at such time(s) as Indemnitee deems appropriate in his or her sole discretion. Indemnitee’s entitlement to indemnification shall be determined according to Section 5.02 of this Agreement and applicable law.

Section 5.02.    Determination of Entitlement. (a) Where there has been a written request by Indemnitee for indemnification pursuant to Section 5.01(b), then as soon as is reasonably practicable (but in any event not later than 60 days) after final disposition of the relevant Proceeding, a determination, if required by applicable law, with respect to Indemnitee’s entitlement thereto shall be made in the specific case: (i) if a Change of Control shall not have occurred, (A) by a majority vote of the Disinterested Directors, even though less than a quorum of the Board, (B) by a committee of Disinterested Directors designated by a majority vote of the Disinterested Directors, even though less than a quorum of the Board, (C) if there are no such Disinterested Directors or, if such

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Disinterested Directors so direct, by Independent Counsel in a written opinion to the Board, a copy of which shall be delivered to Indemnitee; or (ii) if a Change of Control shall have occurred and upon Indemnitee’s written request, by Independent Counsel in a written opinion to the Board, a copy of which shall be delivered to Indemnitee. The Company shall deliver notice in writing to Indemnitee of any determination as to Indemnitee’s entitlement to indemnification to Indemnitee promptly after such determination is made, and if such determination of entitlement has been made by Independent Counsel in a written opinion to the Board, then such notice shall be accompanied by a copy of such written opinion. If it is so determined that Indemnitee is entitled to indemnification, payment to Indemnitee shall be made within thirty (30) days after such determination. Indemnitee shall reasonably cooperate with the person, persons or entity making such determination with respect to Indemnitee’s entitlement to indemnification, including providing to such person, persons or entity upon reasonable advance request any documentation or information which is not privileged or otherwise protected from disclosure and which is reasonably available to Indemnitee and reasonably necessary to such determination. Any costs or expenses (including attorneys’ fees and disbursements) actually and reasonably incurred by Indemnitee in so cooperating with the person, persons or entity making such determination shall be borne by the Company (irrespective of the determination as to Indemnitee’s entitlement to indemnification).

(b)    If entitlement to indemnification is to be determined by Independent Counsel pursuant to Section 5.02(a)(ii), such Independent Counsel shall be selected by Indemnitee, and Indemnitee shall give written notice to the Company advising it of the identity of the Independent Counsel so selected. If entitlement to indemnification is to be determined by Independent Counsel pursuant to Section 5.02(a)(i)(C) (or if Indemnitee requests that such selection be made by the Board), such Independent Counsel shall be selected by the Company in which case the Company shall give written notice to Indemnitee advising him or her of the identity of the Independent Counsel so selected. In either event, Indemnitee or the Company, as the case may be, may, within ten (10) days after such written notice of selection shall have been received, deliver to the Company or to Indemnitee, as the case may be, a written objection to such selection; provided, however, that such objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of “Independent Counsel” as defined in Section 1, and the objection shall set forth with particularity the factual basis of such assertion. Absent a proper and timely objection, the person so selected shall act as Independent Counsel. If such written objection is so made and substantiated, the Independent Counsel so selected may not serve as Independent Counsel unless and until such objection is withdrawn or a court of competent jurisdiction has determined that such objection is without merit. If, within twenty (20) days after the later of submission by Indemnitee of a written request for indemnification pursuant to Section 5.01(b) hereof and the final disposition of the Proceeding, no Independent Counsel shall have been selected and not objected to, either the Company or Indemnitee may petition a court of competent jurisdiction for resolution of any objection which shall have been made by the Company or Indemnitee to the other’s selection of Independent Counsel and/or for the appointment as Independent Counsel of a person selected by the court or by such other person as the court shall designate, and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent Counsel under Section 5.02(a) hereof. Upon the due commencement of any judicial proceeding or arbitration pursuant to Section 6.01(a) of this Agreement, the Independent Counsel shall be discharged and relieved of any further

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responsibility in such capacity (subject to the applicable standards of professional conduct then prevailing).

(c)    The Company agrees to pay the reasonable fees and expenses of any Independent Counsel serving under this Agreement.

Section 5.03.    Presumptions and Burdens of Proof; Effect of Certain Proceedings. (a) In making any determination with respect to entitlement to indemnification hereunder, the person or persons or entity making such determination shall, to the fullest extent not prohibited by law, presume that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification in accordance with Section 5.01(b) of this Agreement, and the Company shall, to the fullest extent not prohibited by law, have the burden of proof to overcome that presumption in connection with the making by any person, persons or entity of any determination contrary to that presumption. Neither the failure of any person, persons or entity to have made a determination prior to the commencement of any action pursuant to this Agreement that indemnification is proper in the circumstances because Indemnitee has met the applicable standard of conduct, nor an actual determination by any person, persons or entity that Indemnitee has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that Indemnitee has not met the applicable standard of conduct.

(b)    If the person, persons or entity empowered or selected under Section 5.02 of this Agreement to determine whether Indemnitee is entitled to indemnification shall not have made a determination within the sixty (60) day period referred to in Section 5.02(a), the requisite determination of entitlement to indemnification shall, to the fullest extent not prohibited by law, be deemed to have been made and Indemnitee shall be entitled to such indemnification, absent (i) a misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such indemnification under applicable law; provided, however, that such 60-day period may be extended for a reasonable time, not to exceed an additional thirty (30) days, if the person, persons or entity making the determination with respect to entitlement to indemnification in good faith requires such additional time for the obtaining or evaluating of documentation and/or information relating thereto.

(b)The termination of any Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon a plea of nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely affect the right of Indemnitee to indemnification or create a presumption that Indemnitee is not entitled to indemnification under the MGBCL.

(c)For purposes of any determination of good faith, Indemnitee shall be deemed to have acted in good faith if Indemnitee’s action or omission is in good faith reliance on the records or books of account of the Company or any Enterprise, including financial statements, or on information supplied to Indemnitee by the officers of the Company or such Enterprise in the course of their duties, or on the advice of legal counsel for the Company or such Enterprise or on information or

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records given or reports made to the Company or such Enterprise by an independent certified public accountant or by an appraiser or other expert selected with reasonable care by the Company or such Enterprise. The provisions of this Section 5.03(d) shall not be deemed to be exclusive or to limit in any way the other circumstances in which Indemnitee may be deemed or found to have met the applicable standard of conduct set forth in this Agreement.

(d)The knowledge and/or actions, or failure to act, of any other director, trustee, partner, managing member, fiduciary, officer, agent or employee of the Company or any Enterprise shall not be imputed to Indemnitee for purposes of determining any right to indemnification under this Agreement.

ARTICLE 6

Remedies of Indemnitee

Section 6.01.    Adjudication or Arbitration. (a) In the event of any dispute between Indemnitee and the Company hereunder as to entitlement to indemnification or advancement of Expenses (including where (i) a determination is made pursuant to Section 5.02 of this Agreement that Indemnitee is not entitled to indemnification under this Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 4.01 of this Agreement, (iii) payment of indemnification pursuant to Section 3.01 of this Agreement is not made within thirty (30) days after a determination has been made that Indemnitee is entitled to indemnification, (iv) no determination as to entitlement to indemnification is timely made pursuant to Section 5.02 of this Agreement and no payment of indemnification is made within thirty (30) days after entitlement is deemed to have been determined pursuant to Section 5.03(b) or (v) a contribution payment is not made in a timely manner pursuant to Section 8.04 of this Agreement, then Indemnitee shall be entitled to an adjudication by a court of competent jurisdiction of his or her entitlement to such indemnification, contribution or advancement. Alternatively, in such case, Indemnitee, at his or her option, may seek an award in arbitration to be conducted within the state of Missouri by a single arbitrator pursuant to the Commercial Arbitration Rules of the American Arbitration Association. The Company shall not oppose Indemnitee’s right to seek any such adjudication or award in arbitration.

(b)    In the event that a determination shall have been made pursuant to Section 5.02(a) of this Agreement that Indemnitee is not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to this Section 6.01 shall be conducted in all respects as a de novo trial, or arbitration, on the merits, and Indemnitee shall not be prejudiced by reason of that adverse determination. In any judicial proceeding or arbitration commenced pursuant to this Section 6.01, the Company shall have the burden of proving that Indemnitee is not entitled to indemnification or advancement of Expenses, as the case may be, and the Company may not refer to or introduce into evidence any determination pursuant to Section 5.02(a) of this Agreement adverse to Indemnitee for any purpose. If Indemnitee commences a judicial proceeding or arbitration pursuant to this Section 6.01, Indemnitee shall not be required to reimburse the Company for any advances pursuant to Section 4.01 until a final determination is made with respect to Indemnitee’s entitlement to indemnification (as to which all rights of appeal have been exhausted or lapsed).

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(c)    If a determination shall have been made pursuant to Section 5.02(a) of this Agreement that Indemnitee is entitled to indemnification, the Company shall be bound by such determination in any judicial proceeding or arbitration commenced pursuant to this Section 6.01, absent (i) a misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such indemnification under applicable law.

(d)    The Company shall, to the extent not prohibited by law, be precluded from asserting in any judicial proceeding or arbitration commenced pursuant to this Section 6.01 that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such court or before any such arbitrator that the Company is bound by all the provisions of this Agreement.

(e)    The Company shall indemnify Indemnitee to the fullest extent permitted by law against all Expenses and, if requested by Indemnitee, shall (promptly, and in no circumstances later than thirty (30) business days after the Company’s receipt of such written request) advance such Expenses to Indemnitee, which are reasonably incurred by Indemnitee in connection with any judicial proceeding brought by Indemnitee for (i) indemnification or advances of Expenses by the Company (or otherwise for the enforcement, interpretation or defense of his or her rights) under this Agreement or any other agreement, including any other indemnification, contribution or advancement agreement, or any provision of the Company’s Articles of Incorporation or By-laws now or hereafter in effect or (ii) recovery or advances under any directors’ and officers’ liability insurance policy maintained by the Company, regardless of whether Indemnitee ultimately is determined to be entitled to such indemnification, contribution, advancement or insurance recovery, as the case may be.

ARTICLE 7

Directors’ and Officers’ Liability Insurance

Section 7.01.    D&O Liability Insurance. The Company shall obtain and maintain a policy or policies of insurance (“D&O Liability Insurance”) with reputable insurance companies providing liability insurance for directors and officers of the Company in their capacities as such (and for any capacity in which any director or officer of the Company serves any other Enterprise at the request of the Company), in respect of acts or omissions occurring while serving in such capacity, on terms with respect to coverage and amount (including with respect to the payment of Expenses) no less favorable than those of such policy in effect on the date hereof, provided that such coverage and amounts are available on commercially reasonable terms.

Section 7.02.    Evidence of Coverage. Upon request by Indemnitee, the Company shall provide copies of all policies of D&O Liability Insurance obtained and maintained in accordance with Section 7.01 of this Agreement. The Company shall promptly notify Indemnitee of any changes in such insurance coverage.

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ARTICLE 8

Miscellaneous

Section 8.01.    Nonexclusivity of Rights. The rights of indemnification, contribution and advancement of Expenses as provided by this Agreement shall not be deemed exclusive of any other rights to which Indemnitee may at any time be entitled to under applicable law, the Articles of Incorporation, the By-laws, any agreement, a vote of shareholders or a resolution of directors, or otherwise. No right or remedy herein conferred is intended to be exclusive of any other right or remedy, and every other right and remedy shall be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other right or remedy.

Section 8.02.    Insurance and Subrogation; No Duplication. (a) Indemnitee shall be covered by the D&O Liability Insurance in accordance with its or their terms to the maximum extent of the coverage available for any director or officer under such policy or policies. If, at the time the Company receives notice of a claim hereunder, the Company has director and officer liability insurance in effect, the Company shall give prompt notice of such Proceeding to the insurers in accordance with the procedures set forth in the respective policies. The Company shall thereafter take all necessary or desirable action to cause such insurers to pay, on behalf of Indemnitee, all amounts payable as a result of such Proceeding in accordance with the terms of such policies, provided that the foregoing does not require the Company to sue or seek legal remedy from any insurer if and to the extent the Indemnitee otherwise receives the protections intended from this Agreement. The failure or refusal of any such insurer to pay any such amount shall not affect or impair the obligations of the Company under this Agreement.

(b)    In the event of any payment under this Agreement, the Company shall be subrogated to the extent of such payment to all of the rights of recovery of Indemnitee, who shall execute all papers required and take all action necessary to secure such rights, including execution of such documents as are necessary to enable the Company to bring suit to enforce such rights.

(c)    The Company shall not be liable under this Agreement to make any payment of amounts otherwise indemnifiable (or for which advancement is provided) hereunder if and to the extent that Indemnitee has actually received such payment under any insurance policy, other indemnity provision or otherwise. Indemnitee hereby agrees that this Agreement shall supersede all prior indemnification agreements between the Company and Indemnitee.

Section 8.03.    The Company’s obligation to indemnify or advance Expenses hereunder to Indemnitee who is or was serving at the request of the Company as a director, officer, trustee, partner, managing member, fiduciary, board of directors’ committee member, employee or agent of any other Enterprise shall be reduced by any amount Indemnitee has actually received as indemnification or advancement of Expenses from such Enterprise.

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Section 8.04.    Contribution. To the fullest extent permissible under applicable law, if the indemnification provided for in this Agreement is unavailable to Indemnitee for any reason whatsoever, the Company, in lieu of indemnifying Indemnitee, shall contribute to the amount incurred by Indemnitee, whether for judgments, fines, penalties, excise taxes, amounts paid or to be paid in settlement and/or for Expenses, in connection with any claim relating to an indemnifiable event under this Agreement, in such proportion as is deemed fair and reasonable in light of all of the circumstances of such Proceeding in order to reflect (i) the relative benefits received by the Company and Indemnitee as a result of the event(s) and/or transaction(s) giving rise to such Proceeding; and/or (ii) the relative fault of the Company (and its directors, officers, employees and agents) and Indemnitee in connection with such event(s) and/or transaction(s).

Section 8.05.    Amendment. This Agreement may not be modified or amended except by a written instrument executed by or on behalf of each of the parties hereto. No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit, restrict or reduce any right of Indemnitee under this Agreement in respect of any act or omission, or any event occurring, prior to such amendment, alteration or repeal. To the extent that a change in applicable law, whether by statute or judicial decision, (i) permits greater indemnification, contribution or advancement of Expenses than would be afforded currently under the Company’s Articles of Incorporation, By-Laws and this Agreement, it is the intent of the parties hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such change or (ii) limits rights with respect to indemnification, contribution or advancement of Expenses, it is the intent of the parties hereto that the rights with respect to indemnification, contribution or advancement of Expenses in effect prior to such change shall remain in full force and effect to the extent permitted by applicable law.

Section 8.06.    Waivers. The observance of any term of this Agreement may be waived (either generally or in a particular instance and either retroactively or prospectively) by the party entitled to enforce such term only by a writing signed by the party against which such waiver is to be asserted. Unless otherwise expressly provided herein, no delay on the part of any party hereto in exercising any right, power or privilege hereunder shall operate as a waiver thereof, nor shall any waiver on the part of any party hereto of any right, power or privilege hereunder operate as a waiver of any other right, power or privilege hereunder nor shall any single or partial exercise of any right, power or privilege hereunder preclude any other or further exercise thereof or the exercise of any other right, power or privilege hereunder.

Section 8.07.    Entire Agreement. This Agreement and the documents referred to herein constitute the entire agreement between the parties hereto with respect to the matters covered hereby, and any other prior or contemporaneous oral or written understandings or agreements with respect to the matters covered hereby are superseded by this Agreement, provided that this Agreement is a supplement to and in furtherance of the Articles of Incorporation and By-laws of the Company and applicable law, and shall not be deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder.

Section 8.08.    Severability. If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable for any reason whatsoever: (a) the validity, legality and

13

enforceability of the remaining provisions of this Agreement (including each portion of any Section of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby and shall remain enforceable to the fullest extent permitted by law; (b) such provision or provisions shall be deemed reformed to the extent necessary to conform to applicable law and to give the maximum effect to the intent of the parties hereto; and (c) to the fullest extent possible, the provisions of this Agreement (including each portion of any Section of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall be construed so as to give effect to the intent manifested thereby.

Section 8.09.    Notices. All notices, requests, demands and other communications under this Agreement shall be in writing (which may be by facsimile transmission). All such notices, requests and other communications shall be deemed received on the date of receipt by the recipient thereof if received prior to 5:00 p.m. in the place of receipt and such day is a business day in the place of receipt. Otherwise, any such notice, request or communication shall be deemed not to have been received until the next succeeding business day in the place of receipt. The address for notice to a party is as shown on the signature page of this Agreement, or such other address as any party shall have given by written notice to the other party as provided above.

Section 8.10.    Binding Effect. (a) The Company expressly confirms and agrees that it has entered into this Agreement and assumed the obligations imposed on it hereby in order to induce Indemnitee to serve as a director or officer of the Company, and the Company acknowledges that Indemnitee is relying upon this Agreement in serving as a director or officer of the Company.

(b)    This Agreement shall be binding upon and inure to the benefit of and be enforceable by the parties hereto and their respective successors, assigns, including any direct or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business and/or assets of the Company, spouses, heirs, and executors, administrators, personal and legal representatives. The Company shall require and cause any successor (whether direct or indirect by purchase, merger, consolidation or otherwise) to all or substantially all, or a substantial part of the business or assets of the Company, by written agreement in form and substance satisfactory to Indemnitee, expressly to assume and agree to perform this Agreement in the manner and to the same extent that the Company would be required to perform if no such succession had taken place.

(c)    The indemnification, contribution and advancement of Expenses provided by, or granted pursuant to this Agreement shall continue as to a person who has ceased to be a director or officer and shall inure to the benefit of the heirs, executors, administrators, legatees and assigns of such a person.

Section 8.11.    Governing Law. This Agreement and the legal relations among the parties shall be governed by, and construed and enforced in accordance with, the laws of the State of Missouri, without regard to its conflict of laws rules.

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Section 8.12.    Consent To Jurisdiction. Except with respect to any arbitration commenced by Indemnitee pursuant to Section 6.01(a) of this Agreement, the Company and Indemnitee hereby irrevocably and unconditionally (i) agree that any action or proceeding arising out of or in connection with this Agreement shall be brought only in any court in the State of Missouri having subject matter jurisdiction thereof and in which venue is proper (the “Missouri Court”), and not in any other state or federal court in the United States of America or any court in any other country, (ii) consent to submit to the exclusive jurisdiction of the Missouri Court for purposes of any action or proceeding arising out of or in connection with this Agreement, (iii) waive any objection to the laying of venue of any such action or proceeding in the Missouri Court, and (iv) waive, and agree not to plead or to make, any claim that any such action or proceeding brought in the Missouri Court has been brought in an improper or inconvenient forum.

Section 8.13.    Headings. The Article and Section headings in this Agreement are for convenience of reference only, and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

Section 8.14.    Counterparts. This Agreement may be executed in one or more counterparts (including by means of facsimile or email in .pdf format), each of which shall for all purposes be deemed to be an original but all of which together shall constitute one and the same Agreement. Only one such counterpart signed by the party against whom enforceability is sought needs to be produced to evidence the existence of this Agreement.

Section 8.15.    Use of Certain Terms. As used in this Agreement, the words “herein,” “hereof,” and “hereunder” and other words of similar import refer to this Agreement as a whole and not to any particular paragraph, subparagraph, section, subsection, or other subdivision. Whenever the context may require, any pronoun used in this Agreement shall include the corresponding masculine, feminine or neuter forms, and the singular form of nouns, pronouns and verbs shall include the plural and vice versa.

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IN WITNESS WHEREOF, this Agreement has been duly executed and delivered to be effective as of the date first above written.

EVERGY, INC.
By:
	Name:
	Title:
INDEMNITEE

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EX-10.3

Exhibit 10.3

EVERGY, INC.

Executive Annual Incentive Plan

Effective as of July 1, 2018

Objective

The Evergy, Inc. (the “Company” or “Evergy”) Executive Annual Incentive Plan (the “Plan”) is designed to motivate and reward officers of Evergy for the achievement of specific key financial, operational and business goals. By providing market-competitive target awards and additional award opportunities for extraordinary achievements and results, the Plan both supports the attraction and retention of senior executive talent critical to achieving the Company’s strategic business objectives and provides financial incentives to reward key performers.

Eligibility

Eligible participants (“Participants”) shall be the named executive officers (“NEOs”) and non-NEOs of the Company as approved by the Compensation and Leadership Development Committee (“Committee”) or board of directors (the “Board”) of the Company.

Administration

The Committee and/or the Board has the full power and authority to (i) interpret the provisions of the Plan, (ii) determine the terms and conditions of any award, (iii) determine whether, and to what extent, awards may be forfeited or suspended, (iv) establish, amend, suspend or waive any rules for the administration of the Plan, (v) delegate all or part of its authority under the Plan to one or more directors and, with respect to the day-to-day administration and operations of the Plan (but not granting of awards or any determination of any amounts eligible to be paid under the Plan) to officers of the Company, and (vi) make any other determination or take any action that is deemed necessary or desirable for the administration of the Plan. All determinations and decisions made by the Committee pursuant to the provisions of the Plan shall be final, conclusive and binding on all persons, and shall be given maximum deference permitted by law.

Awards

Awards and award levels are developed and approved by the Committee, who may seek the input of the Company’s management and one or more outside compensation consultants and may further seek approval by the full Board. Awards are established as a percentage of the Participant’s base salary and percentages may vary based on the Participant’s level of responsibility, market data, internal comparisons and other factors the Committee believes is appropriate.

Plan Year and Incentive Objectives

The Plan will be effective as of July 1, 2018 and end on December 31, 2018 unless the Committee in its sole discretion desires to have a different performance period. The Committee will establish and approve, and if applicable, submit for approval by the Board, specific annual objectives and performance levels that are applicable to each Participant. The amount of a Participant’s award will be determined in the Committee’s discretion and may differ from Participant to Participant, based on performance against the specific objectives and performance levels approved by the Committee. The Committee may adjust or modify the established annual objectives or performance levels in its discretion at any time before the end of the Plan Year.

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Each Participant will be provided a copy of the applicable objectives and performance levels as soon as practicable after the objectives and performance levels have been established as well as be notified as soon as practicable of any adjustment to the applicable objectives and performance levels.

“Umbrella” Plan Funding

The Committee may elect to utilize an “umbrella” funding structure to give the Committee structured flexibility with respect to both determining bonus amounts and ensuring that key threshold levels of goal achievement are met. Umbrella funding allows the Committee to exercise discretion and to differentiate bonus amounts among officers based on individual performance and an assessment of the individual’s achievements and overall contributions to the Company. Under this funding structure, if initial objective performance goal(s) are achieved, Plan award amounts will be “funded” at the superior level (200%), subject to further reduction based on Company, division, individual or other measurable performance. Individual awards under the Plan will not have a funding level that exceeds 200%. An umbrella funding structure will generally consist of both one or more primary goal(s) (“Primary Goal(s)”) and one or more Secondary Goal(s) (as defined below). If the achievement level of the Primary Goal(s) does not meet threshold performance, umbrella funding at the 200% level will not occur, and earned awards will be paid based solely on the actual performance achieved under the Secondary Goal(s) and level of the Plan objectives for the Plan Year. Determination of final awards and funding amounts under the Plan are, at all times, subject to Committee discretion.

For each Plan year or other applicable performance period, the Committee will establish one or more initial performance objective(s) (the “Primary Goal(s)”) that must be met to fund the Plan at 200%. Achievement of the Primary Goal(s) at the threshold level will result in initial funding levels under the Plan at 200% of all target bonus payout levels. All other Plan objective performance goals will be considered “Secondary Goal(s).” The Committee will approve the Primary and Secondary Goal(s) after reviewing management’s recommendations and, where applicable, the Company’s compensation consultants’ comments, of objectives and targets and associated risks and discussing the applicable goals and goal levels with the Board. The Committee will exercise discretion based on achievement levels of the Secondary Goal(s) and any other subjective factors the Committee elects to take into account when determining earned awards.

Notwithstanding anything herein to the contrary and even in the event that none of the Primary Goal(s) or none of the Secondary Goal(s) is achieved, the Committee shall nevertheless retain the full discretion to pay bonus compensation outside of the parameters of this Plan.

Payment of Awards

Earned awards will be payable to each Participant after the completion of the Plan Year or other established performance period and as soon as practicable following the determination by the Committee of the achievement level for the Primary Goal(s), the Secondary Goal(s) and each of the relevant objectives relating thereto. The awards will be paid, in the sole discretion of the Committee, in cash, Company stock (in the form of “Bonus Shares” as defined and under the Company’s Long-Term Incentive Plan (“LTIP”), as may be amended or restated), or a combination of cash and stock, except to the extent receipt of payment is properly deferred under the Company’s Nonqualified Deferred Compensation Plan (the “NQDC Plan”). (Any earned award for which a deferral election has been made under the NQDC Plan will result in a cash award being deferred, as Bonus Shares are not eligible to be deferred under such plan.) Except to the extent deferred under the NQDC Plan, in no event shall payment be made later than the 15^th day of the third month following the end of the taxable year in which the Committee’s determination of award achievement is made.

An award for a person who becomes a Participant during a Plan Year, will be prorated unless otherwise determined by the Committee.

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Miscellaneous

Unfunded Benefits. No benefit provided under this Plan is subject to the Employee Retirement Income Security Act of 1974, as amended, and all benefits under the Plan are unfunded. No Participant shall have any greater right than the right of a general unsecured creditor of the Company.

Amendments and Termination. The Board or the Committee has the exclusive right to terminate, modify, change or alter the Plan at any time.

Clawback or Recoupment. The Board or the Committee will, to the full extent permitted by law, have the discretion based on the particular facts and circumstances, to require that each Participant reimburse the Company for all or any portion of any awards if and to the extent the awards reflected the achievement of financial results that were subsequently the subject of a restatement, or the achievement of other objectives that were subsequently found to be inaccurately measured, and a lower award would have occurred based upon the restated financial results or inaccurately measured objectives. The Board or the Committee may, in its discretion, (i) seek repayment from the Participants; (ii) reduce the amount that would otherwise be payable to the Participants under current or future awards; (iii) withhold future equity grants or salary increases; (iv) pursue other available legal remedies; or (v) any combination of these actions. The Board or the Committee may take such actions against any Participant, whether or not such Participant engaged in any misconduct or was otherwise at fault with respect to such restatement or inaccurate measurement. Unless otherwise required by law, the Board or the Committee will not, however, seek reimbursement with respect to any awards paid more than three years prior to such restatement or the discovery of inaccurate measurements, as applicable.

Tax Withholding. Any payment or benefit under the Plan is subject to all applicable withholding and other taxes applicable to the entire award, which must be satisfied by the Participant in a manner satisfactory to the Company and in accordance with applicable law before any payment is made under this Plan.

Code Section 409A. It is intended that the payments under the Plan qualify as short-term deferrals exempt from the requirements of Section 409A of the Internal Revenue Code of 1986, as amended (“Section 409A”). In the event that any award does not qualify for treatment as an exempt short-term deferral, it is intended that such amount will be paid in a manner that satisfies the requirements of Section 409A. The Plan shall be interpreted and construed accordingly.

Adopted on August 30, 2018

By:    /s/ John Sherman

Chair, Compensation and Leadership Development Committee

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EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Terry Bassham, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Evergy, Inc.;

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(s) 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(s) 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:	November 7, 2018	/s/ Terry Bassham
		Terry Bassham President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Anthony D. Somma, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Evergy, Inc.;

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(s) 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(s) 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:	November 7, 2018	/s/Anthony D. Somma
		Anthony D. Somma Executive Vice President and Chief Financial Officer

EX-31.3

Exhibit 31.3

CERTIFICATIONS

I, Terry Bassham, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kansas City Power & Light 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(s) 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(s) 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:	November 7, 2018	/s/ Terry Bassham
		Terry Bassham President and Chief Executive Officer

EX-31.4

Exhibit 31.4

CERTIFICATIONS

I, Anthony D. Somma, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kansas City Power & Light 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(s) 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(s) 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:	November 7, 2018	/s/ Anthony D. Somma
		Anthony D. Somma Executive Vice President and Chief Financial Officer

EX-31.5

Exhibit 31.5

CERTIFICATIONS

I, Terry Bassham, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Westar Energy, Inc.;

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(s) 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(s) 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:	November 7, 2018	/s/ Terry Bassham
		Terry Bassham President and Chief Executive Officer

EX-31.6

Exhibit 31.6

CERTIFICATIONS

I, Anthony D. Somma, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Westar Energy, Inc.;

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(s) 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(s) 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:	November 7, 2018	/s/ Anthony D. Somma
		Anthony D. Somma Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Evergy, Inc. (the "Company") for the quarterly period ended September 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), Terry Bassham, as President and Chief Executive Officer of the Company, and Anthony D. Somma, as Executive Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	/s/ Terry Bassham
Name: Title:	Terry Bassham President and Chief Executive Officer
Date:	November 7, 2018
	/s/Anthony D. Somma
Name: Title:	Anthony D. Somma Executive Vice President and Chief Financial Officer
Date:	November 7, 2018

EX-32.2

Exhibit 32.2

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Kansas City Power & Light Company (the "Company") for the quarterly period ended September 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), Terry Bassham, as President and Chief Executive Officer of the Company, and Anthony D. Somma, as Executive Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	/s/ Terry Bassham
Name: Title:	Terry Bassham President and Chief Executive Officer
Date:	November 7, 2018
	/s/ Anthony D. Somma
Name: Title:	Anthony D. Somma Executive Vice President and Chief Financial Officer
Date:	November 7, 2018

EX-32.3

Exhibit 32.3

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Westar Energy, Inc. (the "Company") for the quarterly period ended September 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), Terry Bassham, as President and Chief Executive Officer of the Company, and Anthony D. Somma, as Executive Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	/s/ Terry Bassham
Name: Title:	Terry Bassham President and Chief Executive Officer
Date:	November 7, 2018
	/s/ Anthony D. Somma
Name: Title:	Anthony D. Somma Executive Vice President and Chief Financial Officer
Date:	November 7, 2018

XML

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 31, 2018
Entity information [Abstract]
Entity Registrant Name	EVERGY, INC.
Entity Central Index Key	0001711269
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		263,455,083
Entity Current Reporting Status	Yes

XML

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 679.7	$ 3.4
Receivables, net	496.5	290.7
Accounts receivable pledged as collateral	195.0	0.0
Fuel inventory and supplies	520.9	293.6
Income taxes receivable	20.8	0.0
Regulatory assets	332.5	99.5
Prepaid expenses and other assets	73.6	39.8
Total Current Assets	2,319.0	727.0
PROPERTY, PLANT AND EQUIPMENT, NET	18,836.0	9,553.8
OTHER ASSETS:
Regulatory assets	1,518.1	685.4
Nuclear decommissioning trust fund	518.0	237.1
Goodwill	2,333.5	0.0
Other	379.7	244.8
Total Other Assets	4,749.3	1,167.3
TOTAL ASSETS	26,075.2	11,624.4
CURRENT LIABILITIES:
Current maturities of long-term debt	709.6	0.0
Notes payable and commercial paper	675.9	275.7
Collateralized note payable	195.0	0.0
Accounts payable	303.7	204.2
Accrued dividends	0.0	53.8
Accrued taxes	282.1	87.7
Accrued interest	119.6	72.7
Regulatory liabilities	117.2	11.6
Other	225.8	89.5
Total Current Liabilities	2,659.2	823.7
LONG-TERM LIABILITIES:
Long-term debt, net	6,639.8	3,687.6
Deferred income taxes	1,536.0	815.7
Unamortized investment tax credits	378.9	257.1
Regulatory liabilities	2,357.1	1,094.0
Pension and post-retirement liability	949.7	491.2
Asset retirement obligations	622.7	380.0
Other	231.9	133.3
Total Long-Term Liabilities	12,767.2	6,940.3
Commitments and Contingencies (Note 12)
Shareholders' Equity:
Common stock	9,236.4	2,734.8
Retained earnings	1,452.5	1,173.3
Shareholders' Equity	10,688.9	3,908.1
Noncontrolling Interests	(40.1)	(47.7)
Total Equity	10,648.8	3,860.4
TOTAL LIABILITIES AND EQUITY	26,075.2	11,624.4
Westar Energy Inc [Member]
CURRENT ASSETS:
Cash and cash equivalents	3.3	3.4
Receivables, net	347.5	290.7
Related party receivables	0.7	0.0
Fuel inventory and supplies	268.7	293.6
Regulatory assets	120.4	99.5
Prepaid expenses and other assets	31.9	39.8
Total Current Assets	772.5	727.0
PROPERTY, PLANT AND EQUIPMENT, NET	9,637.5	9,553.8
OTHER ASSETS:
Regulatory assets	693.7	685.4
Nuclear decommissioning trust fund	245.8	237.1
Other	227.3	244.8
Total Other Assets	1,166.8	1,167.3
TOTAL ASSETS	11,747.7	11,624.4
CURRENT LIABILITIES:
Current maturities of long-term debt	300.0	0.0
Notes payable and commercial paper	326.3	275.7
Accounts payable	135.1	204.2
Related party payables	73.9	0.0
Accrued dividends	0.0	53.8
Accrued taxes	144.9	87.7
Accrued interest	65.3	72.7
Regulatory liabilities	91.6	11.6
Other	109.4	89.5
Total Current Liabilities	1,276.8	823.7
LONG-TERM LIABILITIES:
Long-term debt, net	3,389.7	3,687.6
Deferred income taxes	787.1	815.7
Unamortized investment tax credits	255.1	257.1
Regulatory liabilities	1,136.9	1,094.0
Pension and post-retirement liability	465.2	491.2
Asset retirement obligations	257.8	380.0
Other	127.8	133.3
Total Long-Term Liabilities	6,470.7	6,940.3
Commitments and Contingencies (Note 12)
Shareholders' Equity:
Common stock	2,737.6	2,734.8
Retained earnings	1,302.7	1,173.3
Shareholders' Equity	4,040.3	3,908.1
Noncontrolling Interests	(40.1)	(47.7)
Total Equity	4,000.2	3,860.4
TOTAL LIABILITIES AND EQUITY	11,747.7	11,624.4
KCPL [Member]
CURRENT ASSETS:
Cash and cash equivalents	3.4	2.2
Receivables, net	102.9	106.3
Related party receivables	142.2	84.7
Accounts receivable pledged as collateral	130.0	130.0
Fuel inventory and supplies	183.8	197.0
Income taxes receivable	0.0	5.4
Regulatory assets	145.6	153.6
Prepaid expenses and other assets	35.7	27.6
Total Current Assets	743.6	706.8
PROPERTY, PLANT AND EQUIPMENT, NET	6,660.3	6,565.6
OTHER ASSETS:
Regulatory assets	479.5	545.1
Nuclear decommissioning trust fund	272.2	258.4
Other	54.5	48.0
Total Other Assets	806.2	851.5
TOTAL ASSETS	8,210.1	8,123.9
CURRENT LIABILITIES:
Current maturities of long-term debt	400.0	350.0
Notes payable and commercial paper	209.2	167.5
Collateralized note payable	130.0	130.0
Accounts payable	132.9	249.0
Related party payables	3.2	0.0
Accrued taxes	121.5	29.0
Accrued interest	39.5	32.4
Regulatory liabilities	15.3	8.3
Other	98.5	98.3
Total Current Liabilities	1,150.1	1,064.5
LONG-TERM LIABILITIES:
Long-term debt, net	2,129.9	2,232.2
Deferred income taxes	619.6	616.1
Unamortized investment tax credits	120.9	121.8
Regulatory liabilities	862.9	770.9
Pension and post-retirement liability	522.3	512.2
Asset retirement obligations	222.7	231.4
Other	80.7	61.6
Total Long-Term Liabilities	4,559.0	4,546.2
Commitments and Contingencies (Note 12)
Shareholders' Equity:
Common stock	1,563.1	1,563.1
Retained earnings	934.8	949.7
Accumulated other comprehensive income	3.1	0.4
Shareholders' Equity	2,501.0	2,513.2
Total Equity	2,501.0	2,513.2
TOTAL LIABILITIES AND EQUITY	8,210.1	8,123.9
Variable Interest Entities [Member]
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	170.9	176.3
CURRENT LIABILITIES:
Current maturities of long-term debt	30.3	28.5
Accrued interest	0.0	0.7
LONG-TERM LIABILITIES:
Long-term debt, net	51.1	81.4
Variable Interest Entities [Member] | Westar Energy Inc [Member]
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	170.9	176.3
CURRENT LIABILITIES:
Current maturities of long-term debt	30.3	28.5
Accrued interest	0.0	0.7
LONG-TERM LIABILITIES:
Long-term debt, net	$ 51.1	$ 81.4

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Shareholder's equity
Common stock - shares authorized (in shares)	600,000,000	275,000,000
Common stock - par value (in dollars per share)	$ 0	$ 5
Common stock - shares issued (in shares)	264,797,584	142,094,275
Westar Energy Inc [Member]
Shareholder's equity
Common stock - shares authorized (in shares)	1,000	275,000,000
Common stock - par value (in dollars per share)	$ 0.01	$ 5
Common stock - shares issued (in shares)	1	142,094,275
KCPL [Member]
Shareholder's equity
Common stock - shares authorized (in shares)	1,000	1,000
Common stock - shares issued (in shares)	1	1

XML

Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
OPERATING REVENUES	$ 1,582.5	$ 794.3	$ 3,076.1	$ 1,976.2
OPERATING EXPENSES:
Fuel and purchased power	383.7	189.8	748.9	415.4
SPP network transmission costs	58.4	62.6	194.4	185.0
Operating and maintenance	330.4	140.6	754.2	415.6
Depreciation and amortization	193.9	94.6	411.6	277.3
Taxes other than income tax	83.0	41.8	183.5	126.4
Total Operating Expenses	1,049.4	529.4	2,292.6	1,419.7
INCOME FROM OPERATIONS	533.1	264.9	783.5	556.5
OTHER INCOME (EXPENSE):
Investment earnings	4.9	1.0	6.2	3.5
Other income	1.6	3.9	5.3	5.7
Other expense	(30.8)	(11.5)	(55.2)	(29.6)
Total Other Income (Expense), Net	(24.3)	(6.6)	(43.7)	(20.4)
Interest expense	89.1	43.4	191.3	128.2
INCOME BEFORE INCOME TAXES	419.7	214.9	548.5	407.9
Income tax expense	64.1	55.8	28.3	112.6
Equity in earnings of equity method investees, net of income taxes	2.0	1.6	4.7	4.9
NET INCOME	357.6	160.7	524.9	300.2
Less: Net income attributable to noncontrolling interests	2.6	2.4	7.6	10.2
NET INCOME	$ 355.0	$ 158.3	$ 517.3	$ 290.0
Basic earnings per common share (in dollars per share)	$ 1.32	$ 1.11	$ 2.61	$ 2.03
Diluted earnings per common share (in dollars per share)	$ 1.32	$ 1.11	$ 2.61	$ 2.03
Average number of basic common shares outstanding (in shares)	268.6	142.5	197.9	142.5
Average number of diluted common shares outstanding (in shares)	268.8	142.5	198.0	142.5
Westar Energy Inc [Member]
OPERATING REVENUES	$ 764.8	$ 794.3	$ 2,015.9	$ 1,976.2
OPERATING EXPENSES:
Fuel and purchased power	169.7	189.8	463.2	415.4
SPP network transmission costs	58.4	62.6	194.4	185.0
Operating and maintenance	141.7	140.6	491.4	415.6
Depreciation and amortization	95.9	94.6	281.6	277.3
Taxes other than income tax	42.2	41.8	128.8	126.4
Total Operating Expenses	507.9	529.4	1,559.4	1,419.7
INCOME FROM OPERATIONS	256.9	264.9	456.5	556.5
OTHER INCOME (EXPENSE):
Investment earnings	0.0	1.0	(0.4)	3.5
Other income	1.3	3.9	4.9	5.7
Other expense	(15.2)	(11.5)	(36.1)	(29.6)
Total Other Income (Expense), Net	(13.9)	(6.6)	(31.6)	(20.4)
Interest expense	43.9	43.4	132.1	128.2
INCOME BEFORE INCOME TAXES	199.1	214.9	292.8	407.9
Income tax expense	22.4	55.8	(22.0)	112.6
Equity in earnings of equity method investees, net of income taxes	1.3	1.6	3.7	4.9
NET INCOME	178.0	160.7	318.5	300.2
Less: Net income attributable to noncontrolling interests	2.6	2.4	7.6	10.2
NET INCOME	175.4	158.3	310.9	290.0
KCPL [Member]
OPERATING REVENUES	559.6	595.7	1,408.9	1,474.3
OPERATING EXPENSES:
Fuel and purchased power	142.4	143.9	392.4	367.3
Operating and maintenance	127.3	114.3	354.5	350.7
Depreciation and amortization	71.9	66.3	209.0	199.9
Taxes other than income tax	28.6	51.4	87.9	140.2
Total Operating Expenses	370.2	375.9	1,043.8	1,058.1
INCOME FROM OPERATIONS	189.4	219.8	365.1	416.2
OTHER INCOME (EXPENSE):
Investment earnings	0.7	0.5	2.1	1.5
Other income	0.2	2.2	1.7	5.4
Other expense	(9.0)	(11.9)	(22.9)	(40.7)
Total Other Income (Expense), Net	(8.1)	(9.2)	(19.1)	(33.8)
Interest expense	33.0	34.3	100.6	105.5
INCOME BEFORE INCOME TAXES	148.3	176.3	245.4	276.9
Income tax expense	28.0	62.2	80.3	99.0
NET INCOME			165.1	177.9
NET INCOME	120.3	114.1	165.1	177.9
Derivative hedging activity
Reclassification to expenses, net of tax	0.8	1.2	2.7	3.8
Derivative hedging activity, net of tax	0.8	1.2	2.7	3.8
Total other comprehensive income	0.8	1.2	2.7	3.8
Comprehensive income (loss)	$ 121.1	$ 115.3	$ 167.8	$ 181.7

XML

Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 524.9	$ 300.2
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	411.6	277.3
Amortization of nuclear fuel	28.6	24.2
Amortization of deferred refueling outage	14.7	12.1
Amortization of deferred regulatory gain from sale leaseback	(4.1)	(4.1)
Amortization of corporate-owned life insurance	17.2	15.7
Non-cash compensation	25.2	6.7
Net deferred income taxes and credits	47.8	127.0
Allowance for equity funds used during construction	(2.4)	(1.1)
Payments for asset retirement obligations	(15.9)	(1.9)
Equity in earnings of equity method investees, net of income taxes	(4.7)	(4.9)
Other	(1.9)	(5.3)
Changes in working capital items:
Accounts receivable	(34.9)	(19.7)
Accounts receivable pledged as collateral	(15.0)	0.0
Fuel inventory and supplies	44.6	15.5
Prepaid expenses and other current assets	(3.4)	55.5
Accounts payable	(58.5)	(10.0)
Accrued taxes	119.0	35.6
Other current liabilities	38.9	(108.5)
Changes in other assets	26.0	22.9
Changes in other liabilities	33.9	5.5
Cash Flows from Operating Activities	1,191.6	742.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(698.3)	(564.6)
Cash acquired from the merger with Great Plains Energy	1,154.2	0.0
Purchase of securities - trusts	(107.0)	(15.3)
Sale of securities - trusts	110.2	15.9
Investment in corporate-owned life insurance	(16.2)	(16.2)
Proceeds from investment in corporate-owned life insurance	6.5	2.1
Proceeds from settlement of interest rate swap	140.6	0.0
Other investing activities	(15.2)	(3.3)
Cash Flows from (used in) Investing Activities	574.8	(581.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	(166.7)	(177.7)
Collateralized short-term borrowings, net	15.0	0.0
Proceeds from long-term debt	22.9	296.2
Retirements of long-term debt	(127.4)	(125.0)
Retirements of Long Term Debt Of VIEs	(28.5)	(26.8)
Repayment of capital leases	(2.9)	(2.6)
Borrowings against cash surrender value of corporate-owned life insurance	55.1	53.4
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(3.9)	0.0
Distributions to shareholders of noncontrolling interests	0.0	(5.8)
Cash dividends paid	(350.4)	(166.3)
Repurchase of common stock	(486.1)	0.0
Other financing activities	(17.2)	(6.4)
Cash Flows (used in) Financing Activities	(1,090.1)	(161.0)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	676.3	0.3
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	3.5	3.2
End of period	679.8	3.5
Westar Energy Inc [Member]
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	318.5	300.2
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	281.6	277.3
Amortization of nuclear fuel	18.6	24.2
Amortization of deferred refueling outage	10.5	12.1
Amortization of deferred regulatory gain from sale leaseback	(4.1)	(4.1)
Amortization of corporate-owned life insurance	17.2	15.7
Non-cash compensation	19.9	6.7
Net deferred income taxes and credits	(34.2)	127.0
Allowance for equity funds used during construction	(2.4)	(1.1)
Payments for asset retirement obligations	(10.6)	(1.9)
Equity in earnings of equity method investees, net of income taxes	(3.7)	(4.9)
Other	(1.9)	(5.3)
Changes in working capital items:
Accounts receivable	(50.6)	(19.7)
Fuel inventory and supplies	25.4	15.5
Prepaid expenses and other current assets	(7.0)	55.5
Accounts payable	36.2	(10.0)
Accrued taxes	74.4	35.6
Other current liabilities	23.2	(108.5)
Changes in other assets	22.9	22.9
Changes in other liabilities	(26.7)	5.5
Cash Flows from Operating Activities	707.2	742.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(510.3)	(564.6)
Purchase of securities - trusts	(96.1)	(15.3)
Sale of securities - trusts	101.2	15.9
Investment in corporate-owned life insurance	(16.2)	(16.2)
Proceeds from investment in corporate-owned life insurance	6.5	2.1
Other investing activities	(8.1)	(3.3)
Cash Flows from (used in) Investing Activities	(523.0)	(581.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	48.3	(177.7)
Proceeds from long-term debt	0.0	296.2
Retirements of long-term debt	0.0	(125.0)
Retirements of Long Term Debt Of VIEs	(28.5)	(26.8)
Repayment of capital leases	(2.9)	(2.6)
Borrowings against cash surrender value of corporate-owned life insurance	55.1	53.4
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(3.9)	0.0
Distributions to shareholders of noncontrolling interests	0.0	(5.8)
Cash dividends paid	(235.1)	(166.3)
Other financing activities	(17.3)	(6.4)
Cash Flows (used in) Financing Activities	(184.3)	(161.0)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(0.1)	0.3
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	3.5	3.2
End of period	3.4	3.5
KCPL [Member]
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	165.1	177.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	209.0	199.9
Amortization of nuclear fuel	18.7	24.1
Amortization of deferred refueling outage	10.3	13.7
Net deferred income taxes and credits	25.2	32.6
Allowance for equity funds used during construction	(1.2)	(3.4)
Payments for asset retirement obligations	(9.9)	(14.9)
Other	2.7	6.3
Changes in working capital items:
Accounts receivable	(41.0)	(19.5)
Accounts receivable pledged as collateral	0.0	(20.0)
Fuel inventory and supplies	13.2	3.6
Prepaid expenses and other current assets	(3.6)	8.9
Accounts payable	(97.7)	(75.1)
Accrued taxes	97.9	122.7
Other current liabilities	8.5	9.9
Changes in other assets	28.3	52.6
Changes in other liabilities	79.0	7.3
Cash Flows from Operating Activities	504.5	526.6
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(310.6)	(317.1)
Purchase of securities - trusts	(27.9)	(23.8)
Sale of securities - trusts	22.5	21.3
Other investing activities	3.4	0.8
Cash Flows from (used in) Investing Activities	(312.6)	(318.8)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	40.3	(60.9)
Collateralized short-term borrowings, net	0.0	20.0
Proceeds from long-term debt	319.5	296.2
Retirements of long-term debt	(373.4)	(281.0)
Cash dividends paid	(180.0)	(182.0)
Other financing activities	2.9	0.0
Cash Flows (used in) Financing Activities	(190.7)	(207.7)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	1.2	0.1
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	2.2	4.5
End of period	$ 3.4	$ 4.6

XML

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Restricted cash	$ 0.1	$ 0.1	$ 0.1	$ 0.1
Westar Energy Inc [Member]
Restricted cash	$ 0.1	$ 0.1	$ 0.1	$ 0.1

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Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Westar Energy Inc [Member]	Westar Energy Inc [Member] Common Stock [Member]	Westar Energy Inc [Member] Retained Earnings [Member]	Westar Energy Inc [Member] Noncontrolling Interest [Member]	KCPL [Member]	KCPL [Member] Common Stock [Member]	KCPL [Member] Retained Earnings [Member]	KCPL [Member] AOCI - Net gains (losses) on cash flow hedges [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adoption of ASU 2016-09									$ (0.7)		$ (0.7)
Beginning balance (in shares) at Dec. 31, 2016		141,791,153				141,791,153				1
Beginning balance at Dec. 31, 2016	$ 3,833.2	$ 2,727.3	$ 1,078.6	$ 27.3	$ 3,833.2	$ 2,727.3	$ 1,078.6	$ 27.3	2,541.5	$ 1,563.1	982.6	$ (4.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	300.2		290.0	10.2	300.2		290.0	10.2	177.9		177.9
Issuance of stock	0.6	$ 0.6			0.6	$ 0.6
Issuance of stock (in shares)		12,131				12,131
Issuance of stock for compensation and reinvested dividends (in shares)		290,892				290,892
Issuance of stock for compensation and reinvested dividends	4.9	$ 4.9			4.9	$ 4.9
Tax withholding related to stock compensation	(7.0)	(7.0)			(7.0)	(7.0)
Dividends declared on common stock	(172.1)		(172.1)		(172.1)		(172.1)		(182.0)		(182.0)
Stock compensation expense	6.7	$ 6.7			6.7	$ 6.7
Deconsolidation of noncontrolling interests	(81.9)			(81.9)	(81.9)			(81.9)
Distributions to shareholders of noncontrolling interests	(5.7)			(5.7)	(5.7)			(5.7)
Derivative hedging activity, net of tax									3.8			3.8
Ending balance (in shares) at Sep. 30, 2017		142,094,176				142,094,176				1
Ending balance at Sep. 30, 2017	3,878.9	$ 2,732.5	1,196.5	(50.1)	3,878.9	$ 2,732.5	1,196.5	(50.1)	2,540.5	$ 1,563.1	977.8	(0.4)
Beginning balance (in shares) at Dec. 31, 2017		142,094,275				142,094,275				1
Beginning balance at Dec. 31, 2017	3,860.4	$ 2,734.8	1,173.3	(47.7)	3,860.4	$ 2,734.8	1,173.3	(47.7)	2,513.2	$ 1,563.1	949.7	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	524.9		517.3	7.6	318.5		310.9	7.6	165.1		165.1
Issuance of stock to Great Plains Energy shareholders (in shares)		128,947,518
Issuance of stock to Great Plains Energy shareholders	6,979.9	$ 6,979.9
Issuance of restricted common stock (in shares)		122,505
Issuance of stock for compensation and reinvested dividends (in shares)		528,359				516,990
Issuance of stock for compensation and reinvested dividends	0.4	$ 0.4			0.0
Tax withholding related to stock compensation	(17.2)	(17.2)			(17.2)	$ (17.2)
Dividends declared on common stock	(237.5)		(237.5)		(181.5)		(181.5)		(180.0)		(180.0)
Dividend equivalents declared	(0.6)		(0.6)
Stock compensation expense	25.2	25.2			19.9	$ 19.9
Repurchase of common stock	(486.1)	$ (486.1)
Repurchase of common stock		(6,895,073)
Stock cancelled pursuant to Amended Merger Agreement (in shares)						(142,611,264)
Stock cancelled pursuant to Amended Merger Agreement					0.0
Derivative hedging activity, net of tax									2.7			2.7
Other	(0.6)	$ (0.6)			0.1	$ 0.1
Ending balance (in shares) at Sep. 30, 2018		264,797,584				1				1
Ending balance at Sep. 30, 2018	$ 10,648.8	$ 9,236.4	$ 1,452.5	$ (40.1)	$ 4,000.2	$ 2,737.6	$ 1,302.7	$ (40.1)	$ 2,501.0	$ 1,563.1	$ 934.8	$ 3.1

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Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Dividends declared on common stock (in dollars per share)	$ 1.26	$ 1.20
Westar Energy Inc [Member]
Dividends declared on common stock (in dollars per share)		$ 1.20

XML

Organization and Basis of Presentation

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Organization and Basis of Presentation

1. ORGANIZATION AND BASIS OF PRESENTATION

Organization

Evergy is a public utility holding company incorporated in 2017 and headquartered in Kansas City, Missouri. Evergy operates primarily through the following wholly-owned direct subsidiaries:

• Westar Energy is an integrated, regulated electric utility that provides electricity to customers in the state of Kansas. Westar Energy has one active wholly-owned subsidiary with significant operations, Kansas Gas and Electric Company (KGE).

• KCP&L is an integrated, regulated electric utility that provides electricity to customers in the states of Missouri and Kansas. KCP&L has one active wholly-owned subsidiary, Kansas City Power & Light Receivables Company (KCP&L Receivables Company).

• KCP&L Greater Missouri Operations Company (GMO) is an integrated, regulated electric utility that provides electricity to customers in the state of Missouri. GMO also provides regulated steam service to certain customers in the St. Joseph, Missouri area. GMO has one active wholly-owned subsidiary, GMO Receivables Company.

• GPE Transmission Holding Company, LLC (GPETHC) owns 13.5% of Transource Energy, LLC (Transource) with the remaining 86.5% owned by AEP Transmission Holding Company, LLC, a subsidiary of American Electric Power Company, Inc. (AEP). Transource is focused on the development of competitive electric transmission projects. GPETHC accounts for its investment in Transource under the equity method.

Westar Energy also owns a 50% interest in Prairie Wind Transmission, LLC (Prairie Wind), which is a joint venture between Westar Energy and affiliates of AEP and Berkshire Hathaway Energy Company. Prairie Wind owns a 108-mile, 345 kV double-circuit transmission line that is now being used to provide transmission service in the Southwest Power Pool, Inc. (SPP). Westar Energy accounts for its investment in Prairie Wind under the equity method.

Westar Energy and KGE conduct business in their respective service territories using the name Westar Energy. KCP&L and GMO conduct business in their respective service territories using the name KCP&L. Collectively, the Evergy Companies have approximately 12,300 MWs of owned generating capacity and engage in the generation, transmission, distribution and sale of electricity to approximately 1.6 million customers in the states of Kansas and Missouri.

Evergy was incorporated in 2017 as Monarch Energy Holding, Inc. (Monarch Energy), a wholly-owned subsidiary of Great Plains Energy Incorporated (Great Plains Energy). Prior to the closing of the merger transactions, Monarch Energy changed its name to Evergy and did not conduct any business activities other than those required for its formation and matters contemplated by the Amended and Restated Agreement and Plan of Merger, dated as of July 9, 2017, by and among Great Plains Energy, Westar Energy, Monarch Energy and King Energy, Inc. (King Energy), a wholly-owned subsidiary of Monarch Energy (Amended Merger Agreement). On June 4, 2018, in accordance with the Amended Merger Agreement, Great Plains Energy merged into Evergy, with Evergy surviving the merger and King Energy merged into Westar Energy, with Westar Energy surviving the merger. These merger transactions resulted in Evergy becoming the parent entity of Westar Energy and the direct subsidiaries of Great Plains Energy, including KCP&L and GMO. See Note 2 for additional information regarding the merger.

Principles of Consolidation

Westar Energy was determined to be the accounting acquirer in the merger and thus, the predecessor of Evergy. Therefore, Evergy's consolidated financial statements reflect the results of operations of Westar Energy for the three months ended and year to date September 30, 2017 and the financial position of Westar Energy as of December 31, 2017. Evergy had separate operations for the period beginning with the quarter ended June 30, 2018, and references to amounts for periods after the closing of the merger relate to Evergy. The results of Great Plains Energy's direct subsidiaries have been included in Evergy's results of operations from the date of the closing of the merger and thereafter.

KCP&L and Westar Energy will continue to maintain their current reporting requirements as Securities and Exchange Commission (SEC) registrants. KCP&L has elected not to apply "push-down accounting" related to the merger, whereby the adjustments of assets and liabilities to fair value and the resulting goodwill would be recorded on the financial statements of the acquired subsidiary. These adjustments for KCP&L, as well as those related to the acquired assets and liabilities of Great Plains Energy and its other direct subsidiaries, are reflected at consolidated Evergy.

Each of Evergy's, Westar Energy's and KCP&L's consolidated financial statements includes the accounts of their subsidiaries and variable interest entities (VIEs) of which they are the primary beneficiary. Undivided interests in jointly-owned generation facilities are included on a proportionate basis.  Intercompany transactions have been eliminated. The Evergy Companies assess financial performance and allocate resources on a consolidated basis (i.e., operate in one segment).

In preparing financial statements that conform to generally accepted accounting principles (GAAP), management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

These unaudited consolidated financial statements have been prepared in accordance with GAAP for the United States of America for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these unaudited consolidated financial statements do not include all of the information and notes required by GAAP for annual financial statements. Because the unaudited consolidated financial statements and notes do not include all of the information and notes required by GAAP for annual financial statements, the unaudited consolidated financial statements and other information included in this quarterly report should be read in conjunction with the Westar Energy First Quarter 2018 Quarterly Report on Form 10-Q, the Great Plains Energy and KCP&L combined First Quarter 2018 Quarterly Report on Form 10-Q, the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K.

Certain changes in classification and corresponding reclassification of prior period data were made in Evergy's, Westar Energy's and KCP&L's unaudited consolidated balance sheets, statements of income and comprehensive income and unaudited statements of cash flows for comparative purposes. Evergy reflects the classifications of Westar Energy as the accounting acquirer in the merger. These reclassifications did not affect Evergy's, Westar Energy's or KCP&L's net income or Evergy's, Westar Energy's or KCP&L's cash flows from operations, investing or financing.

Most significantly for Westar Energy's consolidated balance sheets as of December 31, 2017 was the reclassification of $50.2 million from accrued employee benefits (currently reported as pension and post-retirement liability) to other long-term liabilities. Most significantly for KCP&L's consolidated balance sheets, current regulatory assets and liabilities have been presented separately from the non-current portions in each respective consolidated balance sheet where recovery or refund is expected within the next 12 months.

The table below summarizes KCP&L's reclassifications related to operating and investing activities for its consolidated statement of cash flows for year to date September 30, 2017.

	Year to Date
	September 30, 2017
	As Filed			Updated
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	(in millions)
Adjustments to reconcile income to net cash from operating activities:
Amortization of other	$	23.4		$	—
Amortization of deferred refueling outage	—			13.7
Deferred income taxes, net	33.4			—
Investment tax credit amortization	(0.8		)	—
Net deferred income taxes and credits	—			32.6
Payments for asset retirement obligations	—			(14.9		)
Other(a)	(16.0		)	6.3
Changes in working capital items:
Fuel inventory and supplies	—			3.6
Fuel inventories(a)	10.8			—
Materials and supplies(a)	(7.2		)	—
Prepaid expenses and other current assets	—			8.9
Accrued interest(a)	8.1			—
Other current liabilities	—			9.9
Changes in other assets	—			52.6
Changes in other liabilities	—			7.3
Deferred refueling outage costs(a)	12.1			—
Pension and post-retirement benefit obligations(a)	48.6			—
Fuel recovery mechanisms(a)	7.6			—
Total reclassifications	$	120.0		$	120.0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	$	—		$	(317.1	)
Utility capital expenditures	(295.1		)	—
Allowance for borrowed funds used during construction	(4.2		)	—
Other investing activities	(17.0		)	0.8
Total reclassifications	$	(316.3	)	$	(316.3	)

^(a)Previously reported within Note 3 to the consolidated financial statements of the Great Plains Energy and KCP&L combined Third Quarter 2017 Quarterly Report on Form 10-Q.

Fuel Inventory and Supplies

The Evergy Companies record fuel inventory and supplies at average cost. The balances for fuel inventory and supplies are stated separately in the table below.

	September 30			December 31
		2018			2017
Evergy		(millions)
Fuel inventory		$	163.1		$	94.1
Supplies		357.8			199.5
Fuel inventory and supplies		$	520.9		$	293.6
Westar Energy
Fuel inventory		$	84.9		$	94.1
Supplies		183.8			199.5
Fuel inventory and supplies		$	268.7		$	293.6
KCP&L(a)
Fuel inventory		$	54.6		$	71.0
Supplies		129.2			126.0
Fuel inventory and supplies		$	183.8		$	197.0

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Property, Plant and Equipment

The following tables summarize the property, plant and equipment of Evergy, Westar Energy and KCP&L.

September 30, 2018	Evergy			Westar Energy			KCP&L
	(millions)
Electric plant in service	$	27,290.0		$	13,236.1		$	10,594.2
Electric plant acquisition adjustment	740.6			740.6			—
Accumulated depreciation	(10,168.2		)	(4,838.9		)	(4,172.3		)
Plant in service	17,862.4			9,137.8			6,421.9
Construction work in progress	723.5			443.6			183.4
Nuclear fuel, net	109.1			54.1			55.0
Plant to be retired, net(b)	141.0			2.0			—
Property, plant and equipment, net	$	18,836.0		$	9,637.5		$	6,660.3
December 31, 2017	Evergy			Westar Energy			KCP&L(a)
	(millions)
Electric plant in service	$	12,954.3		$	12,954.3		$	10,213.2
Electric plant acquisition adjustment	739.0			739.0			—
Accumulated depreciation	(4,651.7		)	(4,651.7		)	(4,070.3		)
Plant in service	9,041.6			9,041.6			6,142.9
Construction work in progress	434.9			434.9			350.3
Nuclear fuel, net	71.4			71.4			72.4
Plant to be retired, net(b)	5.9			5.9			—
Property, plant and equipment, net	$	9,553.8		$	9,553.8		$	6,565.6

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

^(b) As of September 30, 2018, represents the planned retirement of GMO's Sibley No. 3 Unit and Westar Energy analog meters prior to the end of their remaining useful lives. As of December 31, 2017, represents the planned retirement of Westar Energy analog meters prior to the end of their remaining useful lives.

Earnings Per Share

Evergy has participating securities in the form of unvested restricted share units (RSUs) with nonforfeitable rights to dividend equivalents that receive dividends on an equal basis with dividends declared on common stock. As a result, Evergy applies the two-class method of computing basic and diluted earnings per share (EPS).

To compute basic EPS, Evergy divides the earnings allocated to common stock by the weighted average number of common shares outstanding. Diluted EPS includes the effect of issuable common shares resulting from RSUs with forfeitable rights to dividend equivalents, performance shares and restricted stock. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method.

The following table reconciles Evergy's basic and diluted EPS.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Income	(millions, except per share amounts)
Net income	$	357.6	$	160.7	$	524.9	$	300.2
Less: net income attributable to noncontrolling interests	2.6		2.4		7.6		10.2
Net income attributable to Evergy, Inc.	355.0		158.3		517.3		290.0
Less: net income allocated to RSUs	0.2		0.3		0.4		0.5
Net income allocated to common stock	$	354.8	$	158.0	$	516.9	$	289.5
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic	268.6		142.5		197.9		142.5
Add: effect of dilutive securities	0.2		—		0.1		—
Weighted average equivalent common shares outstanding - diluted	268.8		142.5		198.0		142.5
Basic and Diluted EPS	$	1.32	$	1.11	$	2.61	$	2.03

There were no anti-dilutive securities excluded from the computation of diluted EPS for the three months ended and year to date September 30, 2018 and 2017.

Dividends Declared

In November 2018, Evergy's Board of Directors (Evergy Board) declared a quarterly dividend of $0.475 per share on Evergy's common stock. The common dividend is payable December 20, 2018, to shareholders of record as of November 29, 2018.

In November 2018, Westar Energy's Board of Directors declared a cash dividend payable to Evergy of $70.0 million, payable on December 19, 2018.

Supplemental Cash Flow Information

Year to Date September 30	2018			2017
Evergy	(millions)
Cash paid for (received from):
Interest, net of amounts capitalized	$	148.7		$	109.0
Interest of VIEs	2.3			3.1
Income taxes, net of refunds	0.6			(12.6		)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(24.8		)	112.5
Deconsolidation of property, plant and equipment of VIE	—			(72.9		)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.4			4.9
Deconsolidation of VIE	—			(83.1		)
Assets acquired through capital leases	0.1			4.6
Westar Energy
Cash paid for (received from):
Interest, net of amounts capitalized	$	110.5		$	109.0
Interest of VIEs	2.3			3.1
Income taxes, net of refunds	—			(12.6		)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(42.0		)	112.5
Deconsolidation of property, plant and equipment of VIE	—			(72.9		)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	—			4.9
Deconsolidation of VIE	—			(83.1		)
Assets acquired through capital leases	0.1			4.6
KCP&L(a)
Cash paid for (received from):
Interest, net of amounts capitalized	$	87.6		$	88.6
Income taxes, net of refunds	28.4			4.9
Non-cash investing transactions:
Property, plant and equipment additions	15.2			15.5

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

See Note 2 for the non-cash information related to the merger transaction, including the fair value of Great Plains Energy's assets acquired and liabilities assumed and the issuance of Evergy common stock.

New Accounting Standards

Intangibles - Internal-Use Software

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which aligns the requirements for recording implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. An entity in a hosting arrangement that is a service contract will need to determine which project stage (that is, preliminary project stage, application development stage or post-implementation stage) an implementation activity relates. Costs for implementation activities in the application development stage are recorded as a prepaid asset depending on the nature of the costs, while costs incurred during the preliminary project and post-implementation stages are expensed as the activities are incurred. Costs that are recorded to a prepaid asset are to be expensed over the term of the hosting arrangement. The new guidance is effective for annual periods beginning after December 15, 2019 and interim periods within those fiscal years. The new guidance can be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. Early adoption is permitted. The Evergy Companies are currently evaluating the new guidance including the timing of adoption.

Compensation - Retirement Benefits

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits, which requires an employer to disaggregate the service cost component from the other components of net benefit cost. The service cost component is to be reported in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The non-service cost components are to be reported separately from service costs and outside of a subtotal of income from operations. The amendments in this update allow only the service cost component to be eligible for capitalization as part of utility plant. The non-service cost components that are no longer eligible for capitalization as part of utility plant will be recorded as a regulatory asset. The new guidance is to be applied retrospectively for the presentation of service cost and non-service cost components in the income statement and prospectively for the capitalization of the service cost component and is effective for interim and annual periods beginning after December 15, 2017. The Evergy Companies adopted ASU No. 2017-07 on January 1, 2018, and accordingly have retrospectively adjusted prior periods. The Evergy Companies utilized the practical expedient that allows for the use of amounts disclosed in Note 7 for applying the retrospective presentation to the 2017 consolidated statements of income and comprehensive income.

The following table reflects the retrospective adjustments in the line items of the Evergy Companies' consolidated statements of income and comprehensive income associated with the adoption of ASU No. 2017-07.

	Three Months Ended									Year to Date
	September 30, 2017									September 30, 2017
	As Previously Reported(b)			Effect of Change			As Reported			As Previously Reported(b)			Effect of Change			As Reported
Evergy	(millions)
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
Westar Energy
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
KCP&L(a)
Operating and maintenance expense	$	124.2		$	(9.9	)	$	114.3		$	385.0		$	(34.3	)	$	350.7
Total operating expenses	385.8			(9.9		)	375.9			1,092.4			(34.3		)	1,058.1
Income from operations	209.9			9.9			219.8			381.9			34.3			416.2
Other expense	(2.0		)	(9.9		)	(11.9		)	(6.4		)	(34.3		)	(40.7		)
Total other income (expense), net	0.7			(9.9		)	(9.2		)	0.5			(34.3		)	(33.8		)

^(a) KCP&L amounts are not included in consolidated Evergy for the three months ended and year to date September 30, 2017.

^(b) Certain Evergy, Westar Energy, and KCP&L as previously reported amounts have been adjusted to reflect reclassification adjustments made for comparative purposes as discussed further in Principles of Consolidation above and that have no impact on net income.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments, which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Among other clarifications, the guidance requires that cash proceeds received from the settlement of corporate-owned life insurance (COLI) policies be classified as cash inflows from investing activities and that cash payments for premiums on COLI policies may be classified as cash outflows for investing activities, operating activities or a combination of both. Retrospective application is required. The Evergy Companies adopted the guidance effective January 1, 2018, which resulted in retrospective reclassification of cash proceeds of $1.9 million from the settlement of COLI policies from cash inflows from operating activities to cash inflows from investing activities for year to date September 30, 2017, for Evergy and Westar Energy.  In addition, cash payments of $2.3 million for premiums on COLI policies were reclassified from cash outflows used in operating activities to cash outflows used in investing activities for the same period for Evergy and Westar Energy. The adoption of ASU No. 2016-15 did not have a material impact on KCP&L.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash, which requires that the statement of cash flows explains the change for the period of restricted cash and restricted cash equivalents along with cash and cash equivalents. The guidance requires a retrospective transition method and is effective for fiscal years beginning after December 15, 2017. The Evergy Companies adopted the guidance effective January 1, 2018. As a result, Evergy and Westar Energy adjusted amounts previously reported for cash and cash equivalents to include restricted cash which resulted in an increase to beginning and ending cash, cash equivalents and restricted cash of $0.1 million for year to date September 30, 2017. The adoption of ASU No. 2016-18 did not have a material impact on KCP&L.

Leases

In February 2016, the FASB issued ASU No. 2016-02, Leases, which requires an entity that is a lessee to record a right-of-use asset and a lease liability for lease payments on the balance sheet for all leases with terms longer than 12 months.  Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement.  The new guidance is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted, and requires a modified retrospective transition approach with an option to either adjust or not adjust comparative periods.  The Evergy Companies plan to adopt the new guidance on January 1, 2019, without adjusting comparative periods. In 2016, management began evaluating current leases to assess the initial impact on Evergy's consolidated financial results. The Evergy Companies continue to evaluate the guidance and disclosure requirements and believe application of the guidance will result in an increase to the assets and liabilities on their consolidated balance sheets, with minimal impact to their consolidated statements of income and comprehensive income. In addition, management is evaluating the Evergy Companies' internal controls over financial reporting as needed to ensure that they remain effective after implementation. The standard permits an entity to elect a practical expedient for existing or expired contracts to forgo reassessing leases to determine whether each is in scope of the new standard and to forgo reassessing lease classification. The Evergy Companies expect to elect this practical expedient upon implementation. In July 2018, the FASB issued ASU No. 2018-11, which provides entities an optional transition method to apply ASU No. 2016-02 as of the date of initial application of the standard rather than as of the earliest period presented. The Evergy Companies are evaluating this update and have not yet determined if they will elect to use this optional transition method.

Financial Instruments

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities, which generally requires equity investments to be measured at fair value with changes in fair value recognized in net income. Under the new standard, equity securities are no longer to be classified as available-for-sale or trading securities. The guidance requires a modified retrospective transition method. This guidance is effective for fiscal years beginning after December 15, 2017; accordingly, the Evergy Companies adopted the new standard on January 1, 2018, without a material impact on their consolidated financial statements.

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. In August 2015, the FASB issued ASU No. 2015-14, deferring the effective date of ASU No. 2014-09 one year, from January 1, 2017, to January 1, 2018. The ASU replaced most existing revenue recognition guidance in GAAP when it became effective. The Evergy Companies adopted ASU No. 2014-09 and its related amendments (ASC 606) on January 1, 2018, using the modified retrospective transition method for all contracts not completed as of the date of adoption. Results for reporting periods beginning after January 1, 2018 are presented under ASC 606 while historical periods have not been adjusted and continue to be reported in accordance with the legacy guidance in ASC 605 - Revenue Recognition.

There was no cumulative effect adjustment to the opening balance of retained earnings in 2018 for the Evergy Companies as a result of the adoption of the new guidance. The impact to both operating revenues and taxes other than income taxes on KCP&L's statements of comprehensive income in 2018 as a result of adopting ASC 606 was a decrease of $22.1 million and $59.7 million for the three months ended and year to date September 30, 2018, respectively. This impact was related to sales taxes and franchise fees collected from KCP&L's Missouri customers, which prior to ASC 606, were recorded gross on KCP&L's statements of comprehensive income. See Note 3 for more information on revenue from contracts with customers.

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Merger of Great Plains Energy and Westar Energy

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Merger of Great Plains Energy and Westar Energy

2. MERGER OF GREAT PLAINS ENERGY AND WESTAR ENERGY

Description of Merger Transaction

On June 4, 2018, Evergy completed the mergers contemplated by the Amended Merger Agreement. As a result of the mergers, Great Plains Energy merged into Evergy, with Evergy surviving the merger and King Energy merged into Westar Energy, with Westar Energy surviving the merger. Following the completion of these mergers, Westar Energy and the direct subsidiaries of Great Plains Energy, including KCP&L and GMO, became wholly-owned subsidiaries of Evergy.

The merger was structured as a merger of equals in a tax-free exchange of shares that involved no premium paid or received with respect to either Great Plains Energy or Westar Energy. As a result of the closing of the merger transaction, each outstanding share of Great Plains Energy common stock was converted into 0.5981 shares of Evergy common stock and each outstanding share of Westar Energy common stock was converted into 1 share of Evergy common stock.

As provided in the Amended Merger Agreement, substantially all of Westar Energy's outstanding equity compensation awards vested and were converted into a right to receive Evergy common stock and all of Great Plains Energy's outstanding equity compensation awards were converted into equivalent Evergy awards subject to the same terms and conditions at the Great Plains Energy merger exchange ratio of 0.5981.

Merger Related Regulatory Matters

KCC

In May 2018, the State Corporation Commission of the State of Kansas (KCC) approved Great Plains Energy's, KCP&L's and Westar Energy's joint application for approval of the merger, including a settlement agreement that had been reached between Great Plains Energy, KCP&L, Westar Energy, KCC staff and certain other intervenors in the case. Through the joint application and settlement agreement, Great Plains Energy, KCP&L and Westar Energy agreed to the conditions and obligations listed below, in addition to other organizational, financing, customer service and civic responsibility commitments.

• Provide a total of $30.6 million of one-time bill credits to Kansas electric retail customers as soon as practicable following the close of the merger and the completion of Westar Energy's and KCP&L's current rate cases in Kansas. Of this total, $23.1 million of the credits relate to Westar Energy customers and the remaining $7.5 million of credits relate to KCP&L Kansas customers.

• Provide a total of approximately $46 million in additional bill credits consisting of $11.5 million in annual bill credits to Kansas electric retail customers from 2019 through 2022. Of the annual amount, $8.7 million of the credits relate to Westar Energy customers and the remaining $2.8 million of credits relate to KCP&L Kansas customers.

• Provide for the inclusion of a total of $30.0 million of merger-related savings in Westar Energy's and KCP&L's current rate cases in Kansas. Of this total, $22.5 million of the savings are attributable to Westar Energy with the remaining $7.5 million of savings attributable to KCP&L's Kansas jurisdiction.

• A five year base rate moratorium for Westar Energy and KCP&L in Kansas that will commence following the conclusion of KCP&L's current Kansas rate case, expected in December 2018. The moratorium is subject to certain conditions and does not include Westar Energy's or KCP&L's fuel recovery mechanisms and certain other cost recovery mechanisms in Kansas.

• Require both Westar Energy and KCP&L to file rate cases in Kansas in a fashion that would allow for updated electric utility rates to become effective upon the end of the five-year rate moratorium in December 2023.

• Participate in an Earnings Review and Sharing Plan (ERSP) for the years 2019 through 2022, which may result in Westar Energy and/or KCP&L being subject to refunding 50% of earned return on equity in excess of authorized return on equity to their Kansas customers.

• Maintain charitable contributions and community involvement in the Kansas service territories of Westar Energy and KCP&L at levels equal to or greater than their respective 2015 levels for 5 years following the closing of the merger.

• Commit that Westar Energy's and KCP&L's retail electric base rates will not increase as a result of the merger.

• Allow Westar Energy and KCP&L to recover a total of $30.9 million of merger transition costs consisting of $23.2 million for Westar Energy and $7.7 million for KCP&L's Kansas jurisdiction. Westar Energy and KCP&L have recorded these amounts as regulatory assets and the settlement agreement stipulates that they will be recovered over a ten year period.

MPSC

In May 2018, the Public Service Commission of the State of Missouri (MPSC) approved Great Plains Energy's, KCP&L's, GMO's and Westar Energy's joint application for approval of the merger, including two stipulations and agreements between these companies, MPSC staff and certain other intervenors in the case. Through the joint application and stipulations and agreements, Great Plains Energy, KCP&L, GMO and Westar Energy agreed to the conditions and obligations listed below, in addition to other organizational, financing, customer service and civic responsibility commitments.

• Provide a total of $29.1 million of one-time bill credits to Missouri electric retail customers within 120 days following the close of the merger. Of this total, $14.9 million of the credits relate to KCP&L Missouri customers and the remaining $14.2 million of credits relate to GMO customers.

• Commit that KCP&L's and GMO's retail electric base rates will not increase as a result of the merger.

• Maintain charitable contributions and community involvement in the Missouri service territories of KCP&L and GMO at levels equal to or greater than their respective 2015 levels for 5 years following the closing of the merger.

• Provide a total of $3.0 million of support over 10 years to community agencies to promote low-income weatherization efforts.

• Support the recovery of a total of $16.9 million of merger transition costs in KCP&L's and GMO's current rate cases, consisting of $9.7 million for KCP&L's Missouri jurisdiction and $7.2 million for GMO. KCP&L and GMO have recorded these amounts as regulatory assets and it is expected that they will be recovered over a ten year period.

Accounting Charges and Deferrals Related to the Merger

The following pre-tax reductions of revenue, expenses and deferral were recognized following the consummation of the merger and are included in the Evergy Companies' consolidated statements of income and comprehensive income for year to date September 30, 2018.

Description	Income Statement Line Item	Expected Payment Period	Evergy			Westar Energy			KCP&L
			(millions)
One-time bill credits	Operating revenues	2018 - 2019	$	(59.7	)	$	(23.1	)	$	(22.4	)
Annual bill credits	Operating revenues	2019 - 2022	(7.6		)	(5.8		)	(1.9		)
Total impact to operating revenues			$	(67.3	)	$	(28.9	)	$	(24.3	)
Charitable contributions and community support	Operating and maintenance	2018 - 2027	$	24.7		$	—		$	—
Voluntary severance and accelerated equity compensation	Operating and maintenance	2018 - 2019	40.7			40.7			—
Other transaction and transition costs	Operating and maintenance	2018	47.0			20.4			1.7
Reallocation and deferral of merger transition costs	Operating and maintenance	n/a	(47.8		)	(13.3		)	(23.9		)
Total impact to operating and maintenance expense			$	64.6		$	47.8		$	(22.2	)
Total			$	(131.9	)	$	(76.7	)	$	(2.1	)

Reductions of revenue and expenses related to customer bill credits, charitable contributions and community support were incurred as a result of conditions in the MPSC and KCC merger orders and were recorded as liabilities in the amounts presented above following the consummation of the merger. Voluntary severance and accelerated equity compensation represent costs related to payments for voluntary severance and change in control plans, as well as the recording of unrecognized equity compensation costs and the incremental fair value associated with the vesting of outstanding Westar Energy equity compensation awards. Other transaction and transition costs include merger success fees and fees for other outside services incurred. Reallocation and deferral of merger transition costs represents the net reallocation of incurred merger transition costs between Evergy, Westar Energy, KCP&L and GMO and the subsequent deferral of these transition costs to a regulatory asset for future recovery in accordance with the KCC and MPSC merger orders.

Purchase Price

Based on an evaluation of the provisions of ASC 805, Business Combinations, Westar Energy was determined to be the accounting acquirer in the merger. Pursuant to the Amended Merger Agreement, Great Plains Energy's common stock shares were exchanged for Evergy common stock shares at the fixed exchange rate of 0.5981. The total consideration transferred in the merger is based on the closing stock price of Westar Energy on June 4, 2018 and is calculated as follows.

	(millions, except share amounts)
Great Plains Energy common stock shares outstanding as of June 4, 2018	215,800,074
Great Plains Energy restricted stock awards outstanding as of June 4, 2018	(204,825		)
Great Plains Energy shares to be converted to Evergy shares	215,595,249
Exchange ratio	0.5981
Evergy common stock shares issued to Great Plains Energy shareholders	128,947,518
Closing price of Westar Energy common stock as of June 4, 2018	$	54.00
Fair value of Evergy shares issued to Great Plains Energy shareholders	$	6,963.2
Fair value of Great Plains Energy's equity compensation awards	12.5
Total purchase price	$	6,975.7

Great Plains Energy's equity compensation awards, including performance shares and restricted stock, were replaced by equivalent Evergy equity compensation awards subject to substantially the same terms and conditions upon the closing of the merger. In accordance with the accounting guidance in ASC 805, a portion of the fair value of these awards is attributable to the purchase price as it represents consideration transferred in the merger.

Purchase Price Allocation

The fair value of Great Plains Energy's assets acquired and liabilities assumed as of June 4, 2018 was determined based on significant estimates and assumptions that are judgmental in nature. Third-party valuation specialists were engaged to assist in the valuation of these assets and liabilities. The fair values of Great Plains Energy's assets acquired and liabilities assumed utilized for the purchase price allocation are preliminary to the extent that additional information is obtained about facts and circumstances that existed as of the acquisition date.

The significant assets and liabilities for which preliminary valuation amounts are reflected as of the filing of this combined Form 10-Q include the fair value of acquired long-term debt, asset retirement obligations, pension and post-retirement plans, accumulated deferred income tax liabilities and certain other long-term assets and liabilities.

The majority of Great Plains Energy's operations are subject to the rate-setting authority of the MPSC, KCC and The Federal Energy Regulatory Commission (FERC) and are accounted for pursuant to GAAP, including the accounting guidance for regulated operations. The rate-setting and cost recovery provisions for Great Plains Energy's regulated operations provide revenue derived from costs including a return on investment of assets and liabilities included in rate base. Except for the significant assets and liabilities for which valuation adjustments were made as discussed above, the fair values of Great Plains Energy's tangible and intangible assets and liabilities subject to these rate-setting provisions approximate their carrying values and the assets and liabilities do not reflect any adjustments to these amounts other than for amounts not included in rate base. The difference between the fair value and pre-merger carrying amounts for Great Plains Energy's long-term debt, asset retirement obligations and pension and post-retirement plans that were related to regulated operations were recorded as a regulatory asset or liability. The excess of the purchase price over the estimated fair values of the assets acquired and liabilities assumed was recognized as goodwill as of the merger date.

The preliminary purchase price allocation to Great Plains Energy's assets and liabilities as of June 4, 2018 is detailed in the following table.

	(millions)
Current assets	$	2,151.7
Property, plant and equipment, net	9,179.7
Goodwill	2,333.5
Other long-term assets, excluding goodwill	1,235.9
Total assets	$	14,900.8
Current liabilities	1,673.9
Long-term liabilities, excluding long-term debt	2,892.6
Long-term debt, net	3,358.6
Total liabilities	$	7,925.1
Total purchase price	$	6,975.7

Impact of Merger

The impact of Great Plains Energy's subsidiaries on Evergy's revenues in the consolidated statements of income for the three months ended and year to date September 30, 2018 was an increase of $817.6 million and $1,060.2 million, respectively. The impact of Great Plains Energy's subsidiaries on Evergy's net income attributable to Evergy in the consolidated statements of income for the three months ended and year to date September 30, 2018 was an increase of $178.8 million and $239.0 million, respectively.

Evergy has incurred total merger-related costs, including reductions of revenue for customer bill credits, of $10.3 million and $134.3 million for the three months ended and year to date September 30, 2018, respectively, and $7.9 million and $8.9 million for the three months ended and year to date September 30, 2017, respectively.

Pro Forma Financial Information

The following unaudited pro forma financial information reflects the consolidated results of operations of Evergy as if the merger transactions had taken place on January 1, 2017. The unaudited pro forma information was calculated after applying Evergy's accounting policies and adjusting Great Plains Energy's results to reflect purchase accounting adjustments.

The unaudited pro forma financial information has been presented for illustrative purposes only and is not necessarily indicative of the consolidated results of operations that would have been achieved or the future consolidated results of operations of Evergy.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
	(millions, except per share amounts)
Operating revenues	$	1,582.5	$	1,651.5	$	4,134.8	$	4,086.7
Net income attributable to Evergy, Inc.	360.2		321.8		694.5		543.3
Basic earnings per common share	$	1.34	$	1.19	$	2.56	$	2.00
Diluted earnings per common share	$	1.34	$	1.19	$	2.55	$	2.00

Evergy, Westar Energy and Great Plains Energy incurred non-recurring costs directly related to the merger that have been excluded in the pro forma earnings presented above. After-tax non-recurring merger-related costs incurred by Evergy, Westar Energy and Great Plains Energy were $5.2 million and $73.4 million for the three months ended and year to date September 30, 2018, respectively, and $6.0 million and $9.4 million for the three months ended and year to date September 30, 2017, respectively.

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Revenue

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue

3. REVENUE

Evergy's, Westar Energy's and KCP&L's revenues disaggregated by customer class are summarized in the following tables.

Three Months Ended September 30, 2018	Evergy		Westar Energy		KCP&L
Revenues	(millions)
Residential	$	647.1	$	270.5	$	243.5
Commercial	530.5		217.4		231.1
Industrial	173.4		111.9		39.1
Other retail	10.9		5.4		2.7
Total electric retail	$	1,361.9	$	605.2	$	516.4
Wholesale	118.5		82.4		29.9
Transmission	80.6		72.2		3.8
Industrial steam and other	6.0		1.5		0.7
Total revenue from contracts with customers	$	1,567.0	$	761.3	$	550.8
Other	15.5		3.5		8.8
Operating revenues	$	1,582.5	$	764.8	$	559.6
Year to Date September 30, 2018	Evergy		Westar Energy		KCP&L(a)
Revenues	(millions)
Residential	$	1,169.4	$	671.9	$	585.4
Commercial	945.0		542.8		609.2
Industrial	375.5		297.2		105.4
Other retail	21.5		15.3		7.7
Total electric retail	$	2,511.4	$	1,527.2	$	1,307.7
Wholesale	302.4		263.7		38.5
Transmission	227.6		216.3		11.0
Industrial steam and other	10.0		4.6		3.0
Total revenue from contracts with customers	$	3,051.4	$	2,011.8	$	1,360.2
Other	24.7		4.1		48.7
Operating revenues	$	3,076.1	$	2,015.9	$	1,408.9

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Retail Revenues

The Evergy Companies' retail revenues are generated by the regulated sale of electricity to their residential, commercial and industrial customers within their franchised service territories. The Evergy Companies recognize revenue on the sale of electricity to their customers over time as the service is provided in the amount they have a right to invoice. Retail customers are billed on a monthly basis at the tariff rates approved by the KCC and MPSC based on customer kWh usage.

Revenues recorded include electric services provided but not yet billed by the Evergy Companies. Unbilled revenues are recorded for kWh usage in the period following the customers' billing cycle to the end of the month. This estimate is based on net system kWh usage less actual billed kWhs. The Evergy Companies' estimated unbilled kWhs are allocated and priced by regulatory jurisdiction across the rate classes based on actual billing rates.

The Evergy Companies also collect sales taxes and franchise fees from customers concurrent with revenue-producing activities that are levied by state and local governments. These items are excluded from revenue, and thus not reflected on the statements of income and comprehensive income, for Evergy, Westar Energy and KCP&L. Prior to the adoption of ASC 606, KCP&L recorded sales taxes and franchise fees collected from its Missouri customers gross on KCP&L's statements of comprehensive income within operating revenues and taxes other than income taxes.

Wholesale Revenues

The Evergy Companies' wholesale revenues are generated by the sale of wholesale power and capacity in circumstances when the power that the Evergy Companies generate is not required for customers in their service territory. These sales primarily occur within the SPP Integrated Marketplace. The Evergy Companies also purchase power from the SPP Integrated Marketplace and record sale and purchase activity on a net basis in wholesale revenue or fuel and purchased power expense. In addition, the Evergy Companies sell wholesale power and capacity through bilateral contracts to other counterparties, such as electric cooperatives, municipalities and other electric utilities.

For both wholesale sales to the SPP Integrated Marketplace and through bilateral contracts, the Evergy Companies recognize revenue on the sale of wholesale electricity to their customers over time as the service is provided in the amount they have a right to invoice.

With regards to the SPP Integrated Marketplace, wholesale sales are billed weekly based on the fixed transaction price determined by the market at the time of the sale and the MWh quantity purchased. With regards to bilateral contracts, wholesale sales are billed monthly based on the contractually determined transaction price and the kWh quantity purchased.

Transmission Revenues

The Evergy Companies' transmission revenues are generated by the use of their transmission networks by the SPP, which the Evergy Companies allow the SPP to access and operate on their behalf and the behalf of other SPP participants. As new transmission lines are constructed, they are included in the transmission network available to the SPP. In exchange for providing access, the SPP pays the Evergy Companies consideration determined by formula rates approved by FERC, which include the cost to construct and maintain the transmission lines and a return on investment. The price for access to the Evergy Companies' transmission networks are updated annually based on projected costs. Projections are updated to actual costs and the difference is included in subsequent year's prices.

The Evergy Companies have different treatment for their legacy transmission facilities within the SPP, which results in different levels of transmission revenue being received from the SPP. Westar Energy's transmission revenues from SPP include amounts that Westar Energy pays to the SPP on behalf of its retail electric customers for the use of Westar Energy's legacy transmission facilities. These transmission revenues are mostly offset by SPP network transmission cost expense that Westar Energy pays on behalf of its retail customers. KCP&L and GMO do not pay the SPP for their retail customers’ use of the KCP&L and GMO legacy transmission facilities and correspondingly, their transmission revenues also do not reflect the associated transmission revenue from the SPP.

The Evergy Companies recognize revenue on the sale of transmission service to their customers over time as the service is provided in the amount they have a right to invoice. Transmission service to the SPP is billed monthly based on a fixed transaction price determined by FERC formula transmission rates along with other SPP-specific charges and the MW quantity purchased.

Industrial Steam and Other Revenues

Evergy's industrial steam and other revenues are primarily generated by the regulated sale of industrial steam to GMO's steam customers. Evergy recognizes revenue on the sale of industrial steam to its customers over time as the service is provided in the amount that it has the right to invoice. Steam customers are billed on a monthly basis at the tariff rate approved by the MPSC based on customer MMBtu usage.

Optional Exemption

Evergy, Westar Energy and KCP&L do not disclose the value of unsatisfied performance obligations on certain bilateral wholesale contracts with an original expected duration of greater than one year for which they recognize revenue in the amount they have the right to invoice.

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Receivables

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Receivables

4. RECEIVABLES

The Evergy Companies' receivables are detailed in the following table.

	September 30				December 31
		2018				2017
Evergy		(millions)
Customer accounts receivable - billed		$	231.7			$	165.4
Customer accounts receivable - unbilled		191.1				76.6
Other receivables		82.4				55.4
Allowance for doubtful accounts		(8.7		)		(6.7		)
Total		$	496.5			$	290.7
Westar Energy
Customer accounts receivable - billed		$	194.0			$	165.4
Customer accounts receivable - unbilled		96.7				76.6
Other receivables		60.7				55.4
Allowance for doubtful accounts		(3.9		)		(6.7		)
Total		$	347.5			$	290.7
KCP&L (a)
Customer accounts receivable - billed		$	25.3			$	1.6
Customer accounts receivable - unbilled		66.6				67.6
Other receivables		14.5				39.3
Allowance for doubtful accounts		(3.5		)		(2.2		)
Total		$	102.9			$	106.3

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Evergy's, Westar Energy's and KCP&L's other receivables at September 30, 2018 and December 31, 2017 consisted primarily of receivables from partners in jointly-owned electric utility plants and wholesale sales receivables. As of September 30, 2018, other receivables for Evergy, Westar Energy and KCP&L included receivables from contracts with customers of $57.7 million, $52.8 million and $1.0 million, respectively.

The Evergy Companies recorded bad debt expense related to contracts with customers as summarized in the following table.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
	(millions)
Evergy	$	4.5	$	2.0	$	10.6	$	5.4
Westar Energy	1.1		2.0		6.2		5.4
KCP&L (a)	3.9		2.8		7.5		6.0

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Sale of Accounts Receivable – KCP&L and GMO

KCP&L and GMO sell all of their retail electric accounts receivable to their wholly-owned subsidiaries, KCP&L Receivables Company and GMO Receivables Company, respectively, which in turn sell an undivided percentage ownership interest in the accounts receivable to Victory Receivables Corporation, an independent outside investor. Each of KCP&L Receivables Company's and GMO Receivables Company's sale of the undivided percentage ownership interest in accounts receivable to Victory Receivables Corporation is accounted for as a secured borrowing with accounts receivable pledged as collateral and a corresponding short-term collateralized note payable recognized on the balance sheets.  At September 30, 2018, Evergy's accounts receivable pledged as collateral and the corresponding short-term collateralized note payable were $195.0 million. At September 30, 2018 and December 31, 2017, KCP&L's accounts receivable pledged as collateral and the corresponding short-term collateralized note payable were $130.0 million. KCP&L's receivable sale facility expires in September 2019 and allows for $130.0 million in aggregate outstanding principal amount of borrowings at any time. GMO's receivable sale facility expires in September 2019 and allows for $50.0 million in aggregate outstanding principal amount of borrowings from mid-November through mid-June and then $65.0 million from mid-June through mid-November.

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Rate Matters and Regulation

9 Months Ended

Sep. 30, 2018

Regulated Operations [Abstract]

Rate Matters and Regulation

5. RATE MATTERS AND REGULATION

KCC Proceedings

Westar Energy 2018 Transmission Delivery Charge

In March 2018, the KCC issued an order adjusting Westar Energy's retail prices to include updated transmission costs as reflected in the FERC transmission formula rate (TFR). The new prices were effective in April 2018 and are expected to increase Westar Energy's annual retail revenues by $31.5 million.

In August 2018, Westar Energy filed an updated Transmission Delivery Charge (TDC) tariff with the KCC to reflect the reduction in revenue requirement that occurred as a result of the Tax Cuts and Jobs Act. The updated filing requested new prices decreasing Westar Energy's annual retail revenues by approximately $20 million. In October 2018, the KCC issued an order approving the request with the new prices effective October 30, 2018.

Westar Energy 2018 Rate Case Proceedings

In February 2018, Westar Energy filed an application with the KCC to request a two-step change in rates, a decrease to retail revenues of approximately $2 million in September 2018 followed by an increase in retail revenues of approximately $54 million in February 2019, with a return on equity of 9.85% and a rate-making equity ratio of 51.6%. The request reflects costs associated with the completion of the Western Plains Wind Farm, the expiration of wholesale contracts currently reflected in retail prices as offsets to retail cost of service, the expiration of production tax credits from prior wind investments and an updated depreciation study, partially offset by the impact of the Tax Cuts and Jobs Act and a portion of the savings from the merger with Great Plains Energy.

In June 2018, Westar Energy, the KCC staff and several other intervenors in the case reached a non-unanimous stipulation and agreement to settle all outstanding issues in the case. The stipulation and agreement provides for a decrease to retail revenues of $66.0 million, before rebasing property tax expense, with a return on equity of 9.3%, a rate-making equity ratio of 51.46% and does not include a second step revenue requirement change as included in Westar Energy's initial application. The stipulation and agreement also provides for an approximately $16 million increase associated with rebasing property tax expense, an approximately $46 million increase in depreciation expense, allows for the recovery of an approximately $41 million wholesale contract that expires in 2019 through Westar Energy's fuel recovery mechanism and reflects customer benefits related to the impacts of the Tax Cuts and Jobs Act, including a one-time bill credit of approximately $50 million to be provided to customers following the conclusion of the rate case.

In September 2018, the KCC issued an order approving the non-unanimous stipulation and agreement. The rates established by the order took effect on September 27, 2018.

KCP&L 2018 Rate Case Proceedings

In May 2018, KCP&L filed an application with the KCC to request an increase to its retail revenues of $26.2 million before rebasing property tax expense, with a return on equity of 9.85% and a rate-making equity ratio of 49.8%. The request reflects the impact of the Tax Cuts and Jobs Act and increases in infrastructure investment costs. KCP&L also requested an additional $6.7 million increase associated with rebasing property tax expense.

In October 2018, KCP&L, the KCC staff and other intervenors reached a unanimous settlement agreement to settle all outstanding issues in the case. The settlement agreement provides for a decrease to retail revenues of $10.7 million before rebasing property tax expense, with a return on equity of 9.3%, a rate-making equity ratio of 49.09% and a one-time bill credit of $36.9 million for customer benefits related to the impacts of the Tax Cuts and Jobs Act.

The unanimous settlement agreement is subject to the approval of the KCC. The new rates are expected to go into effect in December 2018.

MPSC Proceedings

KCP&L 2018 Rate Case Proceedings

In January 2018, KCP&L filed an application with the MPSC to request an increase to its retail revenues of $8.9 million before rebasing fuel and purchased power expense, with a return on equity of 9.85% and a rate-making equity ratio of 50.03%. The request reflects the impact of the Tax Cuts and Jobs Act and increases in infrastructure investment costs, transmission related costs and property tax costs. KCP&L also requested an additional $7.5 million increase associated with rebasing fuel and purchased power expense.

In September 2018, KCP&L, MPSC staff and other intervenors in the case reached several non-unanimous stipulations and agreements to settle all outstanding issues in the case. The stipulations and agreements provide for a decrease to retail revenues of $21.1 million and a one-time customer benefit of $38.7 million related to the impact of the Tax Cuts and Jobs Act, which will be offset against existing KCP&L regulatory assets. The final amount of the one-time customer benefit related to the impact of the Tax Cuts and Jobs Act is dependent on the effective date of new rates.

In October 2018, the MPSC issued an order approving the non-unanimous stipulations and agreements. The rates established by the order are expected to take effect no later than December 2018.

GMO 2018 Rate Case Proceedings

In January 2018, GMO filed an application with the MPSC to request a decrease to its retail revenues of $2.4 million before rebasing fuel and purchased power expense, with a return on equity of 9.85% and a rate-making equity ratio of 54.4%. The request reflects the impact of the Tax Cuts and Jobs Act and increases in infrastructure investment costs and transmission related costs. GMO also requested a $21.7 million increase associated with rebasing fuel and purchased power expense.

In September 2018, GMO, MPSC staff and other intervenors in the case reached several non-unanimous stipulations and agreements to settle all outstanding issues in the case. The stipulations and agreements provide for a decrease to retail revenues of $24.0 million and a one-time bill credit of $29.3 million for customer benefits related to the impacts of the Tax Cuts and Jobs Act. The final amount of the one-time customer bill credit related to the impact of the Tax Cuts and Jobs Act is dependent on the effective date of new rates.

In October 2018, the MPSC issued an order approving the non-unanimous stipulations and agreements. The rates established by the order are expected to take effect no later than December 2018.

FERC Proceedings

Westar Energy's TFR, effective in January 2018, includes projected 2018 transmission capital expenditures and operating costs and was expected to increase annual transmission revenues by $25.5 million. Due to the passage of the Tax Cuts and Jobs Act, Westar Energy requested permission from FERC to retroactively reflect the reduction in the federal corporate income tax rate in its 2018 prices. In April 2018, FERC granted the request and Westar Energy has recorded a regulatory liability as of September 30, 2018 of $5.9 million related to this request. It is estimated the revised TFR will increase 2018 revenues by $2.3 million when compared to 2017.

Westar Energy's TFR, effective in January 2019, includes projected 2019 transmission capital expenditures and operating costs and is expected to decrease annual transmission revenues by $11.2 million when compared to 2018.

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Asset Retirement Obligations

9 Months Ended

Sep. 30, 2018

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

6. ASSET RETIREMENT OBLIGATIONS

Asset Retirement Obligations (AROs) associated with tangible long-lived assets are legal obligations that exist under enacted laws, statutes and written or oral contracts, including obligations arising under the doctrine of promissory estoppel. These liabilities are recognized at estimated fair value as incurred with a corresponding amount capitalized as part of the cost of the related long-lived assets and depreciated over their useful lives. Accretion of the liabilities due to the passage of time is recorded to a regulatory asset and/or liability. Changes in the estimated fair values of the liabilities are recognized when known. Evergy, Westar Energy and KCP&L record the current portion of AROs within other current liabilities on their consolidated balance sheets.

Westar Energy, KCP&L and GMO have AROs related to asbestos abatement and the closure and post-closure care of ponds and landfills containing coal combustion residuals (CCRs).In addition, Westar Energy and KCP&L have AROs related to decommissioning Wolf Creek Generating Station (Wolf Creek) and the retirement of wind generation facilities.

Certain of the Evergy Companies' generating stations or other facilities may contain asbestos due to the age of the facilities, but no confirmation or measurement of the total amount of asbestos could be determined as of September 30, 2018. Due to the inability to reasonably estimate the quantities or the amount of disturbance that will be necessary during dismantlement at the end of the life of a plant or facility, the fair value of this ARO cannot be reasonably estimated at this time. Management will continue to monitor the obligation and will recognize a liability in the period in which sufficient information becomes available to reasonably estimate its fair value.

The following table summarizes the change in the Evergy Companies' AROs for the periods ending September 30, 2018 and December 31, 2017.

	Evergy						Westar Energy						KCP&L(a)
	2018			2017			2018			2017			2018			2017
	(millions)
Beginning balance, January 1	$	405.1		$	324.0		$	405.1		$	324.0		$	266.3		$	278.0
Liabilities assumed upon merger with Great Plains Energy	412.2			—			—			—			—			—
Liabilities incurred during the year	7.4			13.5			7.4			13.5			—			—
Revision in timing and/or estimates	(138.6		)	66.8			(133.0		)	66.8			(5.7		)	0.3
Settlements	(15.9		)	(16.0		)	(10.6		)	(16.0		)	(9.9		)	(25.5		)
Accretion	22.1			16.8			14.0			16.8			12.6			13.5
Ending balance	$	692.3		$	405.1		$	282.9		$	405.1		$	263.3		$	266.3
Less: current portion	(69.6		)	(25.1		)	(25.1		)	(25.1		)	(40.6		)	(34.9		)
Total noncurrent asset retirement obligation	$	622.7		$	380.0		$	257.8		$	380.0		$	222.7		$	231.4

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

See Note 2 for more information regarding KCP&L's and GMO's ARO liabilities that Evergy assumed as a result of the merger.

In June 2018, Evergy and Westar Energy recorded a $127.0 million revision in estimate primarily related to Westar Energy's ARO to decommission its 47% ownership share of Wolf Creek.

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Pension Plans and Other Employee Benefits

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Pension Plans and Other Employee Benefits

7. PENSION PLANS AND OTHER EMPLOYEE BENEFITS

Evergy and certain of its subsidiaries maintain, and Westar Energy and KCP&L participate in, qualified non-contributory defined benefit pension plans covering the majority of Westar Energy's and KCP&L's employees as well as certain non-qualified plans covering certain active and retired officers. Evergy is also responsible for its 94% share of Wolf Creek Nuclear Operating Corporation (WCNOC) defined benefit plans, consisting of Westar Energy's and KCP&L's respective 47% shares.

For the majority of employees, pension benefits under these plans reflect the employees' compensation, years of service and age at retirement. However, for the plan covering Westar Energy's employees, the benefits for non-union employees hired between 2002 and the second quarter of 2018 and union employees hired beginning in 2012 are derived from a cash balance account formula. For the plans covering KCP&L's employees, the benefits for union employees hired beginning in 2014 are derived from a cash balance account formula and the plans were closed to future non-union employees in 2014.

Evergy and its subsidiaries also provide certain post-retirement health care and life insurance benefits for substantially all retired employees of Westar Energy and KCP&L and their respective shares of WCNOC's post-retirement benefit plans.

The Evergy Companies record pension and post-retirement expense in accordance with rate orders from the KCC and MPSC that allow the difference between pension and post-retirement costs under GAAP and costs for ratemaking to be recognized as a regulatory asset or liability.  This difference between financial and regulatory accounting methods is due to timing and will be eliminated over the life of the plans.

The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants.

	Pension Benefits									Post-Retirement Benefits
Three Months Ended September 30, 2018	Evergy			Westar Energy			KCP&L			Evergy			Westar Energy			KCP&L
Components of net periodic benefit costs	(millions)
Service cost	$	20.2		$	8.0		$	9.1		$	0.7		$	0.4		$	0.4
Interest cost	26.3			12.7			9.4			2.5			1.2			0.8
Expected return on plan assets	(27.0		)	(13.9		)	(10.6		)	(2.5		)	(1.8		)	(0.4		)
Amortization of unrecognized:
Prior service cost	0.3			0.2			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	8.1			8.1			8.4			(0.1		)	(0.1		)	—
Net periodic benefit costs before regulatory adjustment	27.9			15.1			16.5			0.7			(0.2		)	0.8
Regulatory adjustment	2.6			2.8			0.7			(0.4		)	(0.4		)	0.1
Net periodic benefit costs	$	30.5		$	17.9		$	17.2		$	0.3		$	(0.6	)	$	0.9
	Pension Benefits									Post-Retirement Benefits
Year to Date September 30, 2018	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	40.4		$	24.1		$	27.4		$	1.5		$	1.0		$	1.1
Interest cost	56.2			38.1			28.3			5.4			3.7			2.5
Expected return on plan assets	(59.3		)	(41.9		)	(31.7		)	(6.2		)	(5.2		)	(1.4		)
Amortization of unrecognized:
Prior service cost	0.6			0.5			0.4			0.3			0.3			—
Recognized net actuarial (gain)/loss	24.4			24.4			25.1			(0.4		)	(0.4		)	(0.1		)
Net periodic benefit costs before regulatory adjustment	62.3			45.2			49.5			0.6			(0.6		)	2.1
Regulatory adjustment	8.4			8.4			2.1			(1.3		)	(1.3		)	(0.2		)
Net periodic benefit costs	$	70.7		$	53.6		$	51.6		$	(0.7	)	$	(1.9	)	$	1.9

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

	Pension Benefits									Post-Retirement Benefits
Three Months Ended September 30, 2017	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	7.2		$	7.2		$	8.1		$	0.3		$	0.3		$	0.4
Interest cost	13.1			13.1			9.8			1.4			1.4			0.9
Expected return on plan assets	(13.4		)	(13.4		)	(9.5		)	(1.8		)	(1.8		)	(0.4		)
Amortization of unrecognized:
Prior service cost	0.1			0.1			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	6.7			6.7			8.9			(0.2		)	(0.2		)	(0.1		)
Net periodic benefit costs before regulatory adjustment	13.7			13.7			17.5			(0.2		)	(0.2		)	0.8
Regulatory adjustment	3.6			3.6			0.2			(0.4		)	(0.4		)	(0.1		)
Net periodic benefit costs	$	17.3		$	17.3		$	17.7		$	(0.6	)	$	(0.6	)	$	0.7
(a) KCP&L amounts are not included in consolidated Evergy for the three months ended September 30, 2017.
	Pension Benefits									Post-Retirement Benefits
Year to Date September 30, 2017	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	21.5		$	21.5		$	24.4		$	0.9		$	0.9		$	1.1
Interest cost	39.3			39.3			29.4			4.2			4.2			2.8
Expected return on plan assets	(40.2		)	(40.2		)	(28.6		)	(5.2		)	(5.2		)	(1.3		)
Amortization of unrecognized:
Prior service cost	0.5			0.5			0.4			0.3			0.3			—
Recognized net actuarial (gain)/loss	20.2			20.2			26.7			(0.6		)	(0.6		)	(0.3		)
Net periodic benefit costs before regulatory adjustment	41.3			41.3			52.3			(0.4		)	(0.4		)	2.3
Regulatory adjustment	10.6			10.6			4.3			(1.4		)	(1.4		)	0.9
Net periodic benefit costs	$	51.9		$	51.9		$	56.6		$	(1.8	)	$	(1.8	)	$	3.2

^(a) KCP&L amounts are not included in consolidated Evergy for year to date September 30, 2017.

The components of net periodic benefit costs other than the service cost component are included in other expense on the Evergy Companies' consolidated statements of income and comprehensive income.

Year to date September 30, 2018, Evergy, Westar Energy and KCP&L made pension contributions of $53.1 million, $43.1 million and $23.7 million, respectively. Evergy's year to date September 30, 2018 pension contributions consist of Westar Energy's year to date September 30, 2018 contributions and KCP&L's contributions made following the closing of the merger in June 2018.

Evergy expects to make additional pension contributions of $66.3 million in 2018 to satisfy the Employee Retirement Income Security Act of 1974, as amended (ERISA) funding requirements and KCC and MPSC rate orders, of which $4.9 million is expected to be paid by Westar Energy and $61.4 million is expected to be paid by KCP&L. Also in 2018, Evergy and KCP&L expect to make contributions of $4.6 million to the post-retirement benefit plans.

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Equity Compensation

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity Compensation

8. EQUITY COMPENSATION

Upon the consummation of the merger, Evergy assumed both Westar Energy's Long-Term Incentive and Share Award plan (LTISA) and Great Plains Energy's Amended Long-Term Incentive Plan, which was renamed the Evergy, Inc. Long-Term Incentive Plan. All outstanding share-based payment awards under Westar Energy's LTISA vested at the closing of the merger transaction and were converted into a right to receive Evergy common stock with the exception of certain RSUs issued prior to the closing of the merger to certain officers and employees of Westar Energy. The vesting of these shares resulted in the recognition of $14.6 million of compensation expense in Evergy's and Westar Energy's consolidated statements of income for year to date September 30, 2018.

All of Great Plains Energy's outstanding performance shares, restricted stock, RSUs and director deferred share units under Great Plains Energy's Amended Long-Term Incentive Plan were converted into equivalent Evergy performance shares, restricted stock, RSUs and director deferred share units at Great Plains Energy's merger exchange ratio of 0.5981. The estimated fair value of these converted awards that was allocated to the purchase price was $12.5 million, after-tax. See Note 2 for more information regarding the merger.

The following table summarizes the Evergy Companies' equity compensation expense and the associated income tax (expense) benefit.

	Three Months Ended September 30					Year to Date September 30
	2018			2017		2018			2017
Evergy	(millions)
Equity compensation expense	$	4.3		$	2.1	$	26.0		$	6.7
Income tax (expense) benefit	(1.5		)	0.8		1.9			2.6
Westar Energy
Equity compensation expense	$	2.0		$	2.1	$	22.6		$	6.7
Income tax (expense) benefit	(1.0		)	0.8		2.1			2.6
KCP&L(a)
Equity compensation expense	$	1.6		$	1.2	$	4.8		$	2.9
Income tax (expense) benefit	(0.7		)	0.4		(0.1		)	1.2

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Performance Shares

The vesting of performance shares is contingent upon achievement of specific performance goals over a stated period of time as approved by the Compensation and Leadership Development Committee of the Evergy Board. The number of performance shares ultimately vested can vary from the number of shares initially granted depending on either Great Plains Energy's performance prior to the closing of the merger transaction or Evergy's performance based on the stated performance period of the awards. Compensation expense for performance shares is calculated by recognizing the portion of the grant date fair value for each reporting period for which the requisite service has been rendered. Dividends are accrued over the vesting period and paid in cash based on the number of performance shares ultimately paid.

The fair value of the converted Great Plains Energy performance share awards was estimated using the market value of Westar Energy's and Great Plains Energy's common stock at the valuation date and a Monte Carlo simulation technique that incorporates assumptions for inputs of expected volatilities, dividend yield and risk-free rates. Expected volatility is based on daily stock price change based on historical common stock information during a historical period commensurate with the remaining term of the performance period of the grant. The risk-free rate is based upon the rate at the time of the evaluation for zero-coupon government bonds with a maturity consistent with the remaining performance period of the grant. The dividend yield is based on the most recent dividends paid by Westar Energy, as Evergy's stock price assumes Westar Energy's stock price on a forward basis, and the grant date stock price on the valuation date. For the Great Plains Energy performance shares converted into Evergy awards upon the closing of the merger, inputs for expected volatility, dividend yield, and risk-free rates were 16.6% - 18.5% , 2.96% and 1.8% - 2.6%, respectively. Evergy and Westar Energy did not have any performance share awards issued and outstanding prior to the close of the merger.

Performance share activity for year to date September 30, 2018 is summarized in the following table.

	Performance Shares			Grant Date Fair Value*
Beginning balance January 1, 2018		—			$	—
Converted Great Plains Energy awards upon merger		351,708			63.79
Forfeited		(3,212	)		63.44
Ending balance September 30, 2018		348,496			63.80

* weighted-average

At September 30, 2018, the remaining weighted-average contractual term was 1.3 years.  There were no shares granted for the three months ended September 30, 2018 and 2017, respectively. The weighted-average grant-date fair value of shares granted was $63.79year to date September 30, 2018. At September 30, 2018, there was $10.6 million of total unrecognized compensation expense, net of forfeiture rates, related to converted Great Plains Energy performance shares granted under its Amended Long-Term Incentive Plan, which will be recognized over the remaining weighted-average contractual term.  

Restricted Stock

Restricted stock cannot be sold or otherwise transferred by the recipient prior to vesting and has a value equal to the fair market value of the shares on the issue date. Restricted stock shares vest over a stated period of time with accruing reinvested dividends subject to the same restrictions. Compensation expense, calculated by multiplying shares by the grant-date fair value related to restricted stock, is recognized on a straight-line basis over the requisite service period of the award. Evergy and Westar Energy did not have any restricted stock awards issued and outstanding prior to the close of the merger.

Restricted stock activity for year to date September 30, 2018 is summarized in the following table.

	Nonvested Restricted Stock			Grant Date Fair Value*
Beginning balance January 1, 2018		—			$	—
Converted Great Plains Energy awards upon merger		122,505			54.05
Vested		(4,222	)		54.50
Forfeited		(1,070	)		54.04
Ending balance September 30, 2018		117,213			54.03

* weighted-average

At September 30, 2018, the remaining weighted-average contractual term was 1.4 years.  There were no shares granted for the three months ended September 30, 2018 and 2017, respectively. The weighted-average grant-date fair value of shares granted was $54.05 year to date September 30, 2018. At September 30, 2018, there was $3.1 million of total unrecognized compensation expense, net of forfeiture rates, related to converted Great Plains Energy restricted stock granted under its Amended Long-Term Incentive Plan, which will be recognized over the remaining weighted-average contractual term. The total fair value of shares vested was $0.2 million for the three months ended and year to date September 30, 2018.

Restricted Share Units

Evergy and Westar Energy have historically used RSUs for their stock-based compensation awards. RSU awards are grants that entitle the holder to receive shares of common stock as the awards vest. These RSU awards are defined as nonvested shares and do not include restrictions once the awards have vested. These RSUs have either taken the form of RSUs with only service requirements that vest solely upon the passage of time or RSUs with performance measures that vest upon expiration of the award term. All issued and outstanding Evergy and Westar Energy RSU awards with performance measures vested in connection with the closing of the merger transaction in June 2018.

Evergy measures the fair value of RSUs with only service requirements based on the fair market value of the underlying common stock as of the grant date. RSU awards with only service conditions recognize compensation expense by multiplying shares by the grant-date fair value related to the RSU and recognizing it on a straight-line basis over the requisite service period for the entire award, including for those RSUs that have a graded vesting schedule. Nonforfeitable dividend equivalents, or the rights to receive cash equal to the value of dividends paid on Evergy's common stock, are paid on certain of these RSUs during the vesting period. Nonforfeitable dividends equivalents are recorded directly to retained earnings.

RSU activity for awards with only service requirements for year to date September 30, 2018 is summarized in the following table.

	Nonvested Restricted Share Units			Grant Date Fair Value*
Beginning balance January 1, 2018		255,964			$	46.09
Granted		222,465			52.16
Converted Great Plains Energy awards upon merger		82,331			53.77
Vested		(342,599	)		46.81
Forfeited		(905	)		50.73
Ending balance September 30, 2018		217,256			54.07

* weighted-average

At September 30, 2018, the remaining weighted-average contractual term related to RSU awards with only service requirements was 1.7 years.  There were no RSUs granted for the three months ended September 30, 2018 and 2017, respectively. The weighted-average grant-date fair value of RSUs granted with only service requirements was $52.16 and $53.25 year to date September 30, 2018, and 2017, respectively. At September 30, 2018, there was $9.5 million of unrecognized compensation expense related to unvested RSUs. There were no RSUs with only service requirements that vested for the three months ended September 30, 2018. The total fair value of RSUs with only service requirements that vested year to date September 30, 2018 was $16.0 million. The total fair value of RSUs with only service requirements that vested for the three months ended and year to date September 30, 2017 was $0.2 million and $3.8 million, respectively.

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Short-term Borrowings and Short-term Bank Lines of Credit

9 Months Ended

Sep. 30, 2018

Short-term Borrowings and Short-term Bank Lines of Credit [Abstract]

Short-term Borrowings and Short-term Bank Lines of Credit

9. SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT

In September 2018, Evergy entered into a $2.5 billion master credit facility which expires in 2023. Evergy, Westar Energy, KCP&L and GMO have borrowing capacity under the master credit facility with specific sublimits for each borrower. These sublimits can be unilaterally adjusted by Evergy for each borrower provided the sublimits remain within minimum and maximum sublimits as specified in the facility. A default by any borrower under the facility or one of their significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default under the facility. Under the terms of this facility, each of Evergy, Westar Energy, KCP&L and GMO is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times. As of September 30, 2018, Evergy, Westar Energy, KCP&L and GMO were in compliance with this covenant.

In connection with the entry into the master credit facility, each of Evergy (as successor to Great Plains Energy), Westar Energy, KCP&L and GMO terminated its existing credit facilities in September 2018.

The following table summarizes the committed credit facilities (excluding receivable sale facilities) available to the Evergy Companies as of September 30, 2018 and December 31, 2017.

			Amounts Drawn
	Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
September 30, 2018	(millions)
Evergy, Inc.	$	450.0	n/a		$	1.0	$	—	$	449.0	—%
Westar Energy	1,000.0		326.3		18.3		—		655.4		2.42%
KCP&L	600.0		209.2		2.7		—		388.1		2.50%
GMO	450.0		140.4		2.1		—		307.5		2.46%
Evergy	$	2,500.0	$	675.9	$	24.1	$	—	$	1,800.0
December 31, 2017
Westar Energy(b)	$	979.3	$	275.7	$	11.8	$	—	$	691.8	1.83%
KCP&L(a)	600.0		167.5		2.7		—		429.8		1.95%
Evergy	979.3		275.7		11.8		—		691.8		1.83%

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

^(b) $20.7 million of Westar Energy's $730.0 million and $270.0 million revolving credit facilities expired in September 2017.

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Long-Term Debt

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Long-Term Debt

10. LONG-TERM DEBT

As of September 30, 2018, Evergy's outstanding long-term debt, including current maturities, includes $3,659.7 million related to KCP&L, GMO and the assumed long-term debt of Great Plains Energy discussed further below. This amount also includes $153.0 million of fair value adjustments recorded in connection with purchase accounting for the merger transaction, which are not part of future principal payments and will amortize over the remaining life of the associated debt instruments. See Note 2 for more information regarding the merger transaction. The series of long-term debt obligations originally issued by Great Plains Energy and assumed by Evergy, Inc. as part of the merger transaction were:

• $350.0 million of 4.85% unsecured Senior Notes; and

• $287.5 million of 5.292% unsecured Senior Notes.

KCP&L Senior Notes

In March 2018, KCP&L issued, at a discount, $300.0 million of 4.20% unsecured Senior Notes, maturing in 2048. KCP&L also repaid its $350.0 million of 6.375% unsecured Senior Notes at maturity in March 2018.

KCP&L EIRR Bond Remarketing

In July 2018, KCP&L remarketed its unsecured Series 2008 Environmental Improvement Revenue Refunding (EIRR) bonds maturing in 2038 totaling $23.4 million at a fixed rate of 2.75% through June 30, 2022.

GMO Senior Notes

As a result of the consummation of the merger transaction, a change in control provision in GMO's Series A, B and C Senior Notes was triggered that allowed holders a one-time option to elect for early repayment of their notes at par value, plus accrued interest. Several holders of GMO's Series A and B Senior Notes elected this option and in July 2018, GMO redeemed $89.0 million of its Series A Senior Notes and $15.0 million of its Series B Senior Notes.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

11. FAIR VALUE MEASUREMENTS

Values of Financial Instruments

GAAP establishes a hierarchical framework for disclosing the transparency of the inputs utilized in measuring assets and liabilities at fair value. Management's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy levels. In addition, the Evergy Companies measure certain investments that do not have a readily determinable fair value at net asset value (NAV), which are not included in the fair value hierarchy. Further explanation of these levels and NAV is summarized below.

Level 1 – Quoted prices are available in active markets for identical assets or liabilities. The types of assets and liabilities include in Level 1 are highly liquid and actively traded instruments with quoted prices, such as equities listed on public exchanges.

Level 2 –  Pricing inputs are not quoted prices in active markets, but are either directly or indirectly observable. The types of assets and liabilities included in Level 2 are certain marketable debt securities, financial instruments traded in less than active markets or other financial instruments priced with models using highly observable inputs.

Level 3 – Significant inputs to pricing have little or no transparency. The types of assets and liabilities included in Level 3 are those with inputs requiring significant management judgment or estimation.

NAV - Investments that do not have a readily determinable fair value are measured at NAV. These investments do not consider the observability of inputs and, therefore, they are not included within the fair value hierarchy. The Evergy Companies include in this category investments in private equity, real estate and alternative investment funds that do not have a readily determinable fair value. The underlying alternative investments include collateralized debt obligations, mezzanine debt and a variety of other investments.

The Evergy Companies record cash and cash equivalents, accounts receivable and short-term borrowings on their consolidated balance sheets at cost, which approximates fair value due to the short-term nature of these instruments.

The Evergy Companies measure the fair value of long-term debt using Level 2 measurements available as of the measurement date. The book value and fair value of the Evergy Companies' long-term debt and long-term debt of variable interest entities is summarized in the following table.

	September 30, 2018				December 31, 2017
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt(a)	(millions)
Evergy(b)	$	7,349.4	$	7,362.2	$	3,687.6	$	4,010.6
Westar Energy	3,689.7		3,750.8		3,687.6		4,010.6
KCP&L(c)	2,529.9		2,611.3		2,582.2		2,799.1
Long-term debt of variable interest entities(a)
Evergy	$	81.4	$	80.7	$	109.9	$	110.8
Westar Energy	81.4		80.7		109.9		110.8

^(a) Includes current maturities.

^(b) Book value as of September 30, 2018 includes $153.0 million of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Westar Energy merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument. See Note 2 for more information regarding the merger transaction.

^(c) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Recurring Fair Value Measurements

The following tables include the Evergy Companies' balances of financial assets and liabilities measured at fair value on a recurring basis.

Description	September 30 2018			Level 1		Level 2			Level 3			NAV
Westar Energy		(millions)
Assets
Nuclear decommissioning trust(a)
Domestic equity funds		$	80.9	$	74.7		$	—		$	—		$	6.2
International equity funds		42.3		42.3			—			—			—
Core bond fund		36.8		36.8			—			—			—
High-yield bond fund		20.1		20.1			—			—			—
Emerging markets bond fund		15.5		15.5			—			—			—
Combination debt/equity/other fund		14.8		14.8			—			—			—
Alternative investments fund		23.6		—			—			—			23.6
Real estate securities fund		11.5		—			—			—			11.5
Cash equivalents		0.3		0.3			—			—			—
Total nuclear decommissioning trust		245.8		204.5			—			—			41.3
Rabbi trust
Core bond fund		24.9		—			—			—			24.9
Combination debt/equity/other fund		6.2		—			—			—			6.2
Cash equivalents		0.1		0.1			—			—			—
Total rabbi trust		31.2		0.1			—			—			31.1
Total		$	277.0	$	204.6		$	—		$	—		$	72.4
KCP&L
Assets
Nuclear decommissioning trust(a)
Equity securities		$	195.2	$	195.2		$	—		$	—		$	—
Debt securities
U.S. Treasury		39.5		39.5			—			—			—
U.S. Agency		0.4		—			0.4			—			—
State and local obligations		2.1		—			2.1			—			—
Corporate bonds		32.3		—			32.3			—			—
Foreign governments		0.1		—			0.1			—			—
Cash equivalents		1.5		1.5			—			—			—
Other		1.1		1.1			—			—			—
Total nuclear decommissioning trust		272.2		237.3			34.9			—			—
Self-insured health plan trust(b)
Equity securities		0.5		0.5			—			—			—
Debt securities		3.1		0.3			2.8			—			—
Cash and cash equivalents		9.4		9.4			—			—			—
Total self-insured health plan trust		13.0		10.2			2.8			—			—
Total		$	285.2	$	247.5		$	37.7		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.5	$	—		$	—		$	—		$	13.5
Total rabbi trusts		$	13.5	$	—		$	—		$	—		$	13.5
Evergy
Assets
Nuclear decommissioning trust (a)		$	518.0	$	441.8		$	34.9		$	—		$	41.3
Rabbi trusts		44.7		0.1			—			—			44.6
Self-insured health plan trust (b)		13.0		10.2			2.8			—			—
Total		$	575.7	$	452.1		$	37.7		$	—		$	85.9

Description	December 31 2017			Level 1			Level 2			Level 3			NAV
Westar Energy		(millions)
Assets
Nuclear decommissioning trust(a)(c)
Domestic equity funds		$	73.8		$	—		$	68.7		$	—		$	5.1
International equity funds		47.9			—			47.9			—			—
Core bond fund		33.3			—			33.3			—			—
High-yield bond fund		18.1			—			18.1			—			—
Emerging markets bond fund		17.3			—			17.3			—			—
Combination debt/equity/other fund		14.1			—			14.1			—			—
Alternative investments fund		21.7			—			—			—			21.7
Real estate securities fund		10.8			—			—			—			10.8
Cash equivalents		0.1			0.1			—			—			—
Total nuclear decommissioning trust		237.1			0.1			199.4			—			37.6
Rabbi trust(c)
Core bond fund		27.3			—			27.3			—			—
Combination debt/equity/other fund		6.8			—			6.8			—			—
Cash equivalents		0.2			0.2			—			—			—
Total rabbi trust		34.3			0.2			34.1			—			—
Total		$	271.4		$	0.3		$	233.5		$	—		$	37.6
KCP&L(d)
Assets
Nuclear decommissioning trust (a)
Equity securities		$	183.8		$	183.8		$	—		$	—		$	—
Debt securities
U.S. Treasury		35.3			35.3			—			—			—
U.S. Agency		0.4			—			0.4			—			—
State and local obligations		2.1			—			2.1			—			—
Corporate bonds		34.1			—			34.1			—			—
Foreign governments		0.1			—			0.1			—			—
Cash equivalents		2.5			2.5			—			—			—
Other		0.1			0.1			—			—			—
Total nuclear decommissioning trust		258.4			221.7			36.7			—			—
Self-insured health plan trust(b)
Equity securities		0.5			0.5			—			—			—
Debt securities		2.7			0.3			2.4			—			—
Cash and cash equivalents		7.7			7.7			—			—			—
Total self-insured health plan trust		10.9			8.5			2.4			—			—
Total		$	269.3		$	230.2		$	39.1		$	—		$	—
Evergy
Assets
Nuclear decommissioning trust(a)(c)		$	237.1		$	0.1		$	199.4		$	—		$	37.6
Rabbi trust(c)		34.3			0.2			34.1			—			—
Total		$	271.4		$	0.3		$	233.5		$	—		$	37.6

^(a)  Fair value is based on quoted market prices of the investments held by the trust and/or valuation models.  

^(b)  Fair value is based on quoted market prices of the investments held by the trust. Debt securities classified as Level 1 are comprised of U.S. Treasury securities. Debt securities classified as Level 2 are comprised of corporate bonds, U.S. Agency, state and local obligations, and other asset-backed securities.

^(c)  In the second quarter of 2018, Evergy and Westar Energy re-evaluated the classification, within the fair value hierarchy, of their various fund investments within both Westar Energy's nuclear decommissioning trust and rabbi trusts. As a result, Evergy and Westar Energy determined that certain fund investments within the nuclear decommissioning trust in the amount of $199.4 million as of December 31, 2017, should have been classified as Level 1, instead of Level 2. This determination is based on the fact that the fair value of these funds is based on daily published prices at which Evergy and Westar Energy are able to redeem their investments without restriction on a daily basis. Evergy and Westar Energy also determined that certain fund investments within their rabbi trusts in the amount of $34.1 million as of December 31, 2017, should have been measured using the NAV per share (or its equivalent) practical expedient, instead of as a Level 2 investment. This determination is based on the fact that these funds do not meet the definition of readily determinable fair value due to the absence of a published NAV. Evergy and Westar Energy have determined that these errors are immaterial to their current and previously filed financial reports and accordingly, have not revised prior periods but have reflected the changes in fair value hierarchy classification as of September 30, 2018.

^(d)  KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Certain Evergy and Westar Energy investments included in the table above are measured at NAV as they do not have readily determinable fair values. In certain situations, these investments may have redemption restrictions.

The following table provides additional information on these Evergy and Westar Energy investments.

	September 30, 2018				December 31, 2017				September 30, 2018
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Westar Energy	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	6.2	$	4.8	$	5.1	$	2.8	(a)	(a)
Alternative investments fund(b)	23.6		—		21.7		—		Quarterly	65 days
Real estate securities fund(b)	11.5		—		10.8		—		Quarterly	65 days
Total	$	41.3	$	4.8	$	37.6	$	2.8
Rabbi trust:
Core bond fund	$	24.9	$	—	$	—	$	—	(c)	(c)
Combination debt/equity/other fund	6.2		—		—		—		(c)	(c)
Total	$	31.1	$	—	$	—	$	—
Other Evergy
Rabbi trusts:
Fixed income fund(d)	$	13.5	$	—	$	—	$	—	(c)	(c)
Total Evergy investments at NAV	$	85.9	$	4.8	$	37.6	$	2.8

^(a)  This investment is in five long-term private equity funds that do not permit early withdrawal. Investments in these funds cannot be distributed until the underlying investments have been liquidated, which may take years from the date of initial liquidation. Three funds have begun to make distributions. The initial investment in the fourth and fifth fund occurred in the second quarter of 2016 and first quarter of 2018, respectively. The fourth fund's term is 15 years, subject to the general partner's right to extend the the term for up to three additional one-year periods.  The fifth fund's term will be 15 years after the initial closing date, subject to additional extensions approved by the Advisory Committee to provide for an orderly liquidation of fund investments and dissolution of the fund.

^(b)  There is a holdback on final redemptions.

^(c)  This investment can be redeemed immediately and is not subject to any restrictions on redemptions.

^(d)  This investment is recorded at GMO. GMO amounts are not included in consolidated Evergy as of December 31, 2017.

The Evergy Companies hold equity and debt investments classified as securities in various trusts including for the purposes of funding the decommissioning of Wolf Creek and for the benefit of certain retired executive officers of Westar Energy. The Evergy Companies record net realized and unrealized gains and losses on the nuclear decommissioning trusts in regulatory liabilities on their consolidated balance sheets and record net realized and unrealized gains and losses on Westar Energy's rabbi trust in the consolidated statements of income.

The following table summarizes the net unrealized gains (losses) for the Evergy Companies' nuclear decommissioning trusts and rabbi trusts.

	Three Months Ended September 30					Year to Date September 30
	2018			2017		2018			2017
Westar Energy	(millions)
Nuclear decommissioning trust - equity securities	$	6.5		$	7.7	$	(6.4	)	$	22.2
Rabbi trust	3.7			16.5		3.2			19.0
Total	$	10.2		$	24.2	$	(3.2	)	$	41.2
KCP&L(a)
Nuclear decommissioning trust - equity securities	$	8.6		$	6.9	$	9.1		$	17.8
Nuclear decommissioning trust - debt securities	(0.5		)	—		(2.8		)	0.7
Total	$	8.1		$	6.9	$	6.3		$	18.5
Evergy
Nuclear decommissioning trust - equity securities	$	15.1		$	7.7	$	1.1		$	22.2
Nuclear decommissioning trust - debt securities	(0.5		)	—		(0.8		)	—
Rabbi trusts	3.7			16.5		3.1			19.0
Total	$	18.3		$	24.2	$	3.4		$	41.2

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the merger, June 4, 2018 through September 30, 2018.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

12. COMMITMENTS AND CONTINGENCIES

Contractual Commitments

For information regarding long-term contractual commitments, including fuel and purchased power commitments, see Note 14 of the Westar Energy 2017 Form 10-K and Note 15 of the Great Plains Energy and KCP&L combined 2017 Form 10-K.

Environmental Matters

Set forth below are descriptions of contingencies related to environmental matters that may impact the Evergy Companies or their financial results. Management's assessment of these contingencies, which are based on federal and state statutes and regulations, and regulatory agency and judicial interpretations and actions, has evolved over time. There are a variety of final and proposed laws and regulations that could have a material adverse effect on the Evergy Companies operations and consolidated financial results. Due in part to the complex nature of environmental laws and regulations, the Evergy Companies are unable to assess the impact of potential changes that may develop with respect to the environmental contingencies described below.

Cross-State Air Pollution Update Rule

In September 2016, the Environmental Protection Agency (EPA) finalized the Cross-State Air Pollution Update Rule. The final rule addresses interstate transport of nitrogen oxides emissions in 22 states including Kansas, Missouri and Oklahoma during the ozone season and the impact from the formation of ozone on downwind states with respect to the 2008 ozone National Ambient Air Quality Standards (NAAQS). Starting with the 2017 ozone season, the final rule revised the existing ozone season allowance budgets for Missouri and Oklahoma and established an ozone season budget for Kansas. In June 2018, the EPA proposed that the Cross-State Air Pollution Update Rule satisfied the "Good Neighbor" obligations for the 2008 ozone NAAQS and therefore the EPA is proposing no additional reduction in the current ozone season allowance budgets. Various states and others are challenging the Cross-State Air Pollution Update Rule in the U.S. Court of Appeals for the D.C. Circuit (D.C. Circuit) but the rule remains in effect. It is not expected that this rule will have a material impact on the Evergy Companies' operations and consolidated financial results.

National Ambient Air Quality Standards

Under the Clean Air Act Amendments of 1990 (Clean Air Act), the EPA sets NAAQS for certain emissions known as the “criteria pollutants” considered harmful to public health and the environment, including two classes of particulate matter (PM), ozone, nitrogen dioxide (NO₂) (a precursor to ozone), carbon monoxide and sulfur dioxide (SO₂), which result from fossil fuel combustion. Areas meeting the NAAQS are designated attainment areas while those that do not meet the NAAQS are considered nonattainment areas. Each state must develop a plan to bring nonattainment areas into compliance with the NAAQS. NAAQS must be reviewed by the EPA at five-year intervals.

In October 2015, the EPA strengthened the ozone NAAQS by lowering the standards from 75 ppb to 70 ppb. In September 2016, the Kansas Department of Health & Environment (KDHE) recommended to the EPA that they designate eight counties in the state of Kansas as in attainment with the standard, and each remaining county in Kansas as attainment/unclassifiable. Also, in September 2016, the Missouri Department of Natural Resources (MDNR) recommended to the EPA that they designate all Missouri counties in KCP&L's and GMO's service territories as attainment/unclassifiable. In November 2017, the EPA designated all counties in the State of Kansas as well as the Missouri counties in KCP&L's and GMO's service territories as attainment/unclassifiable. It is not expected that this will have a material impact on the Evergy Companies' consolidated financial results.

In December 2012, the EPA strengthened an existing NAAQS for one class of PM. In December 2014, the EPA designated the entire state of Kansas and those portions of Missouri served by KCP&L and GMO as attainment/unclassifiable with the standard. It is not expected that this will have a material impact on the Evergy Companies' operations or consolidated financial results.

The Evergy Companies continue to communicate with their regulatory agencies regarding these standards and evaluate what impact the revised NAAQS could have on their operations and consolidated financial results. If areas surrounding the Evergy Companies' facilities are designated in the future as nonattainment and/or it is required to install additional equipment to control emissions at facilities of the Evergy Companies, it could have a material impact on the operations and consolidated financial results of the Evergy Companies.

Greenhouse Gases

Burning coal and other fossil fuels releases carbon dioxide (CO₂) and other gases referred to as greenhouse gases (GHG).  Various regulations under the federal Clean Air Act limit CO₂ and other GHG emissions, and in addition, other measures are being imposed or offered by individual states, municipalities and regional agreements with the goal of reducing GHG emissions.

In October 2015, the EPA published a rule establishing new source performance standards (NSPS) for GHGs that limit CO₂ emissions for new, modified and reconstructed coal and natural gas fueled electric generating units to various levels per MWh depending on various characteristics of the units. Legal challenges to the GHG NSPS have been filed in the D.C. Circuit by various states and industry members. Also in October 2015, the EPA published a rule establishing guidelines for states to regulate CO₂ emissions from existing power plants. The standards for existing plants are known as the Clean Power Plan (CPP). Under the CPP, interim emissions performance rates must be achieved beginning in 2022 and final emissions performance rates must be achieved by 2030. Legal challenges to the CPP were filed by groups of states and industry members, including Westar Energy, in the D.C. Circuit. The CPP was stayed by the Supreme Court in February 2016 and, accordingly, is not currently being implemented by the states.

In April 2017, the EPA published in the Federal Register a notice of withdrawal of the proposed CPP federal plan, proposed model trading rules and proposed Clean Energy Incentive Program design details. Also in April 2017, the EPA published a notice in the Federal Register that it was initiating administrative reviews of the CPP and the GHG NSPS.

In October 2017, the EPA issued a proposed rule to repeal the CPP. The proposed rule indicates the CPP exceeds EPA’s authority and the EPA has not determined whether they will issue a replacement rule. The EPA solicited comments on the legal interpretations contained in this rulemaking.

In December 2017, the EPA issued an advance notice of proposed rulemaking to solicit feedback on specific areas of the CPP that could be changed.

In August 2018, the EPA published in the Federal Register proposed regulations which contained (1) emission guidelines for GHG emissions from existing electric utility generating units (EGUs), (2) revisions to emission guideline implementing regulations and (3) revisions to the new source review (NSR) program. The proposed emission guidelines are better known as the Affordable Clean Energy (ACE) Rule. The ACE Rule would establish emission guidelines for states to use in the development of plans to reduce GHG emissions from existing coal-fired EGUs. The ACE Rule is also the replacement rule for the CPP. The ACE rule proposes to determine the “best system of emission reduction” for GHG emissions from existing coal-fired EGUs as on-site, heat-rate efficiency improvements. The proposed rule also provides states with a list of candidate technologies that can be used to establish standards of performance and incorporate these performance standards into state plans. In order for the states to be able to effectively implement the proposed emission guidelines contained in the ACE Rule, the EPA is proposing new regulations under 111(d) of the Clean Air Act to help clarify this process. In addition, the EPA is proposing revisions to the NSR program that will reduce the likelihood of triggering NSR for proposed heat-rate efficiency improvement projects at existing coal-fired EGUs. The EPA accepted comments on these three proposed regulatory changes until October 31, 2018.

Due to the future uncertainty of the CPP and ACE rules, the Evergy Companies cannot determine the impact on their operations or consolidated financial results, but the cost to comply with the CPP, should it be upheld and implemented in its current or a substantially similar form, or ACE in its current or a substantially similar form, could be material.

Water

The Evergy Companies discharge some of the water used in generation and other operations. This water may contain substances deemed to be pollutants. Revised rules governing such discharges from coal-fired power plants were issued in November 2015. The final rule establishes effluent limitations guidelines (ELG) and standards for wastewater discharges, including limits on the amount of toxic metals and other pollutants that can be discharged. Implementation timelines for these requirements vary from 2018 to 2023. In April 2017, the EPA announced it is reconsidering the ELG rule and court challenges have been placed in abeyance pending the EPA's review. In September 2017, the EPA finalized a rule to postpone the compliance dates for the new, more stringent, effluent limitations and pretreatment standards for bottom ash transport water and flue gas desulfurization wastewater. These compliance dates have been postponed for two years while the EPA completes its administrative reconsideration of the ELG rule. The Evergy Companies are evaluating the final rule and related developments and cannot predict the resulting impact on their operations or consolidated financial results, but believe costs to comply could be material if the rule is implemented in its current or substantially similar form.

In October 2014, the EPA's final standards for cooling intake structures at power plants to protect aquatic life took effect. The standards, based on Section 316(b) of the federal Clean Water Act (CWA), require subject facilities to choose among seven best available technology options to reduce fish impingement. In addition, some facilities must conduct studies to assist permitting authorities to determine whether and what site-specific controls, if any, would be required to reduce entrainment of aquatic organisms. The Evergy Companies' current analysis indicates this rule will not have a significant impact on their coal plants that employ cooling towers or cooling lakes that can be classified as closed cycle cooling and do not expect the impact from this rule to be material. Plants without closed cycle cooling are under evaluation for compliance with these standards and may require additional controls that could be material.

KCP&L holds a permit from MDNR covering water discharge from its Hawthorn Station.  The permit authorizes KCP&L to, among other things, withdraw water from the Missouri River for cooling purposes and return the heated water to the Missouri River.  KCP&L has applied for a renewal of this permit and the EPA has submitted an interim objection letter regarding the allowable amount of heat that can be contained in the returned water.  Until this matter is resolved, KCP&L continues to operate under its current permit. Evergy and KCP&L cannot predict the outcome of this matter; however, while less significant outcomes are possible, this matter may require a reduction in generation, installation of cooling towers or other technology to cool the water, or both, any of which could have a material impact on Evergy's and KCP&L's operations and consolidated financial results.  

In June 2015, the EPA along with the U.S. Army Corps of Engineers issued a final rule, effective August 2015, defining the Waters of the United States (WOTUS) for purposes of the CWA. This rulemaking has the potential to impact all programs under the CWA. Expansion of regulated waterways is possible under the rule depending on regulating authority interpretation, which could impact several permitting programs. Various states and others have filed lawsuits challenging the WOTUS rule. In February 2018, the EPA and the U.S. Army Corps of Engineers finalized a rule adding an applicability date to the 2015 rule, which makes the implementation date of the rule February 2020. In July 2017, the EPA and the U.S. Army Corps of Engineers published in the Federal Register a proposed rule that would, if implemented, reinstate the definition of WOTUS that existed prior to the June 2015 expansion of the definition. Final action on the proposed rule is expected in 2018 as it is currently at the Office of Management and Budget for inter-agency review. The Evergy Companies are currently evaluating the WOTUS rule and related developments but do not believe the rule, if upheld and implemented in its current or substantially similar form, will have a material impact on the Evergy Companies' operations or consolidated financial results.

Regulation of Coal Combustion Residuals

In the course of operating their coal generation plants, the Evergy Companies produce CCRs, including fly ash, gypsum and bottom ash. Some of this ash production is recycled, principally by selling to the aggregate industry. The EPA published a rule to regulate CCRs in April 2015, which will require additional CCR handling, processing and storage equipment and closure of certain ash disposal units. The Water Infrastructure Improvements for the Nation (WIIN) Act allows states to achieve delegated authority for CCR rules from the EPA. This has the potential to impact compliance options. In July 2018, the KDHE submitted a CCR permit program application to the EPA under authority of the WIIN Act. Final action on the application by the EPA is expected to occur within one year from the application date. MDNR is working on a rule revision which will allow the state to apply for authority over the federal CCR regulation. The application is expected to be submitted to the EPA in early 2019. Similar to the process in Kansas, this would allow Missouri state regulators to gain control of the CCR program. It will take up to one year from submittal of the Missouri application for EPA to take final action and grant authority to the state.

On July 30, 2018, the EPA published in the Federal Register a final rule called the Phase I CCR Remand Rule in order to modify portions of the 2015 rulemaking. The Phase I rule provides a timeline extension for unlined impoundments and landfills that must close due to groundwater impacts or location restrictions. The rule also sets risk-based limits for certain groundwater constituents where a maximum contaminant level did not previously exist. These rule modifications add flexibility when assessing compliance.

On August 21, 2018, the D.C. Circuit court issued a ruling in the CCR rule litigation between the Utility Solid Waste Activities Group, the EPA and environmental organizations. Portions of the rule were vacated and were remanded back to EPA for potential modification. Potential revisions to remanded sections could force all unlined surface impoundments to close regardless of groundwater conditions. Any changes to the rule based on this court decision will require additional rulemaking from the EPA.

The Evergy Companies have recorded AROs for their current estimates for the closure of ash disposal ponds but the revision of these AROs may be required in the future due to changes in existing CCR regulations, changes in interpretation of existing CCR regulations, the results of groundwater monitoring of CCR units, or changes in the timing or cost to close ash disposal ponds. If revisions to these AROs are necessary, the impact on the Evergy Companies' operations or consolidated financial results could be material.

Storage of Spent Nuclear Fuel

Under the Nuclear Waste Policy Act of 1982, the Department of Energy (DOE) is responsible for the permanent disposal of spent nuclear fuel. In 2010, the DOE filed a motion with the Nuclear Regulatory Commission (NRC) to withdraw its then pending application to construct a national repository for the disposal of spent nuclear fuel and high-level radioactive waste at Yucca Mountain, Nevada. An NRC board denied the DOE's motion to withdraw its application and the DOE appealed that decision to the full NRC. In 2011, the NRC issued an evenly split decision on the appeal and also ordered the licensing board to close out its work on the DOE's application by the end of 2011 due to a lack of funding. These agency actions prompted the states of Washington and South Carolina, and a county in South Carolina, to file a lawsuit in a federal Court of Appeals asking the court to compel the NRC to resume its license review and to issue a decision on the license application. In August 2013, the court ordered the NRC to resume its review of the DOE's application. The NRC has not yet issued its decision.

Wolf Creek has elected to build a dry cask storage facility to expand its existing on-site spent nuclear fuel storage, which is expected to provide additional capacity prior to 2025. Wolf Creek has finalized a settlement agreement through 2019 with the DOE for reimbursement of costs to construct this facility that would not have otherwise been incurred had the DOE begun accepting spent nuclear fuel. The Evergy Companies expect the majority of the remaining cost to construct the dry cask storage facility that would not have otherwise been incurred will be reimbursed by the DOE. The Evergy Companies cannot predict when, or if, an off-site storage site or alternative disposal site will be available to receive Wolf Creek's spent nuclear fuel and will continue to monitor this activity.

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Guarantees

9 Months Ended

Sep. 30, 2018

Guarantees [Abstract]

Guarantees

13. GUARANTEES

In the ordinary course of business, Evergy and certain of its subsidiaries enter into various agreements providing financial or performance assurance to third parties on behalf of certain subsidiaries. Such agreements include, for example, guarantees and letters of credit. These agreements are entered into primarily to support or enhance the creditworthiness otherwise attributed to a subsidiary on a stand-alone basis, thereby facilitating the extension of sufficient credit to accomplish the subsidiary's intended business purposes. The majority of these agreements guarantee the company's own future performance, so a liability for the fair value of the obligation is not recorded. In connection with the merger transaction, Evergy assumed the guarantees previously provided to GMO by Great Plains Energy.

At September 30, 2018, Evergy has provided $111.3 million of credit support for GMO as follows:

• Evergy direct guarantees to GMO counterparties totaling $17.0 million, which expire in 2020, and

• Evergy's guarantee of GMO long-term debt totaling $94.3 million, which includes debt with maturity dates ranging from 2019 to 2023.

Evergy has also guaranteed GMO's commercial paper program. At September 30, 2018, GMO had $140.4 million of commercial paper outstanding.

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Related Party Transactions and Relationships

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Related Party Transactions and Relationships

14. RELATED PARTY TRANSACTIONS AND RELATIONSHIPS

In the normal course of business, Westar Energy, KCP&L and GMO engage in related party transactions with one another. A summary of these transactions and the amounts associated with them is provided below. All related party transaction amounts between Westar Energy and either KCP&L or GMO only reflect activity between June 4, 2018, the date of the merger, and September 30, 2018.

Jointly-Owned Plants and Shared Services

KCP&L employees manage GMO's business and operate its facilities at cost, including GMO's 18% ownership interest in KCP&L's Iatan Nos. 1 and 2.  The operating expenses and capital costs billed from KCP&L to GMO were $43.4 million and $139.6 million, respectively, for the three months ended and year to date September 30, 2018. These costs totaled $49.2 million and $145.0 million, respectively, for the three months ended and year to date September 30, 2017.

Westar Energy employees manage Jeffrey Energy Center and operate its facilities at cost, including GMO's 8% ownership interest in Jeffrey Energy Center. The operating expenses and capital costs billed from Westar Energy to GMO for Jeffrey Energy Center and other various business activities were $0.8 million and $4.5 million, respectively, for the three months ended and year to date September 30, 2018.

KCP&L employees manage La Cygne Station and operate its facilities at cost, including Westar Energy's 50% ownership interest in La Cygne Station. KCP&L and Westar Energy employees also provide one another with shared service support, including costs related to human resources, information technology, accounting and legal services. The operating expenses and capital costs billed from KCP&L to Westar Energy were $35.5 million and $50.8 million, respectively, for the three months ended and year to date September 30, 2018. The operating and capital costs billed from Westar Energy to KCP&L were $4.8 million and $10.8 million, respectively, for the three months ended and year to date September 30, 2018.

Money Pool

KCP&L and GMO are also authorized to participate in the Evergy money pool, an internal financing arrangement in which funds may be lent on a short-term basis to KCP&L and GMO from Evergy and between KCP&L and GMO. At September 30, 2018 and December 31, 2017, KCP&L had no outstanding receivables or payables under the money pool.

The following table summarizes Westar Energy's and KCP&L's related party net receivables and payables.

	September 30			December 31
	2018			2017
Westar Energy	(millions)
Net receivable from GMO	$	0.7		$	—
Net payable to KCP&L	(59.3		)	—
Net payable to Evergy	(14.6		)	—
KCP&L
Net receivable from GMO	$	63.3		$	65.8
Net receivable from Westar Energy	59.3			—
Net receivable from Evergy	16.4			—
Net receivable from Great Plains Energy	—			18.9

Tax Allocation Agreement

Evergy files a consolidated federal income tax return as well as unitary and combined income tax returns in several state jurisdictions with Kansas and Missouri being the most significant. Income taxes for consolidated or combined subsidiaries are allocated to the subsidiaries based on separate company computations of income or loss. As of September 30, 2018, Westar Energy and KCP&L had income taxes payable to Evergy of $4.4 million and $21.4 million, respectively.

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Shareholders' Equity

9 Months Ended

Sep. 30, 2018

Stockholders' Equity Note [Abstract]

Shareholders' Equity

15. SHAREHOLDERS' EQUITY

Evergy's authorized capital stock consists of 600 million shares of common stock, without par value, and 12 million shares of Preference Stock, without par value.

Evergy Registration Statements

In November 2018, Evergy filed an automatic shelf registration statement providing for the sale of unlimited amounts of securities with the SEC, which expires in November 2021.

In September 2018, Evergy registered shares of its common stock with the SEC for its Dividend Reinvestment and Direct Stock Purchase Plan. Shares issued under the plan may be either newly issued shares or shares purchased on the open market.

In June 2018, Evergy registered shares of its common stock with the SEC for the Great Plains Energy 401(k) Savings Plan and Westar Energy, Inc. Employees' 401(k) Savings Plan, among other compensation plans, that Evergy assumed in connection with the merger transaction. Shares issued under the plans may be either newly issued shares or shares purchased on the open market.

Common Stock Repurchase Plan

In July 2018, the Evergy Board authorized the repurchase of up to 60 million shares of Evergy's common stock. Although this repurchase authorization has no expiration date, Evergy expects to repurchase the 60 million shares by mid-2020. Evergy plans to utilize various methods to effectuate the share repurchase program, including but not limited to, a series of transactions that may include accelerated share repurchases, open market transactions or other means, subject to market conditions and applicable legal requirements. The repurchase program may be suspended, discontinued or resumed at any time. Year to date September 30, 2018, Evergy had total repurchases of common stock of approximately $486 million and had repurchased 6.9 million shares under the repurchase program, which included shares repurchased under accelerated share repurchase (ASR) agreements which had not reached final settlement as of September 30, 2018, and are discussed further below. Evergy retires repurchased common stock shares in the period the shares are repurchased.

In August 2018, Evergy entered into two ASR agreements with financial institutions to purchase $450.0 million of Evergy common stock. In August 2018, the financial institutions delivered to Evergy 6.3 million shares of common stock, representing a partial settlement of the contracts, based on then-current market prices and Evergy paid a total of $450.0 million. The upfront payment was recorded as a reduction to Evergy, Inc. shareholders' equity on Evergy's consolidated balance sheets and as a repurchase of common stock on Evergy's consolidated statements of cash flows.

The final number of shares of Evergy common stock that Evergy may receive or be required to remit upon final settlement of the ASR agreements will be based on the average daily volume weighted-average price of Evergy common stock during the term of the ASR agreements, less a negotiated discount. Final settlement of each ASR agreement will occur by the end of November 2018 but may occur earlier at the option of the financial institutions.

In October 2018, one of the ASR agreements was settled early at the option of the financial institution, which resulted in the delivery to Evergy of 848,226 additional shares of Evergy common stock at no additional cost. Evergy expects that the final settlement of the remaining ASR agreement will also result in the delivery of additional shares of common stock to Evergy at no additional cost.

Evergy reflects the ASRs as a repurchase of common stock in the period the shares are delivered for purposes of calculating earnings per share and as forward contracts indexed to its own common stock. The ASRs meet all of the applicable criteria for equity classification and therefore are not accounted for as derivative instruments.

Dividend Restrictions

Evergy depends on its subsidiaries to pay dividends on its common stock. The Evergy Companies have certain restrictions stemming from statutory requirements, corporate organizational documents, covenants and other conditions that could affect dividend levels or the ability to pay dividends.

The KCC order authorizing the merger transaction requires Evergy to maintain consolidated common equity of at least 35% of total consolidated capitalization. Further, Evergy's master credit facility requires it to maintain a consolidated indebtedness to consolidated capitalization ratio of not more than 0.65 to 1.00 at all times.

Under the Federal Power Act, Westar Energy, KCP&L and GMO generally can pay dividends only out of retained earnings. Certain conditions in the MPSC and KCC orders authorizing the merger transaction also require Westar Energy and KCP&L to maintain consolidated common equity of at least 40% of total capitalization. Other conditions in the MPSC and KCC merger orders require Westar Energy, KCP&L and GMO to maintain credit ratings of at least investment grade. If Westar Energy's, KCP&L's or GMO's credit ratings are downgraded below the investment grade level as a result of their affiliation with Evergy or any of Evergy's affiliates, the impacted utility shall not pay a common dividend without KCC or MPSC approval or until the impacted utility's investment grade credit rating has been restored.

The master credit facility of Evergy, Westar Energy, KCP&L and GMO and the note purchase agreement for GMO's Series A, B and C Senior Notes contain covenants requiring the respective company to maintain a consolidated indebtedness to consolidated total capitalization ratio of not more than 0.65 to 1.00 at all times.

As of September 30, 2018, all of Evergy's and Westar Energy's retained earnings and net income were free of restrictions and KCP&L had a retained earnings restriction of $227.4 million. Evergy's subsidiaries had restricted net assets of approximately $5.2 billion as of September 30, 2018. These restrictions are not expected to affect the Evergy Companies' ability to pay dividends at the current level for the foreseeable future.

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Variable Interest Entities

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Variable Interest Entities

16. VARIABLE INTEREST ENTITIES

In determining the primary beneficiary of a VIE, the Evergy Companies assess the entity's purpose and design, including the nature of the entity's activities and the risks that the entity was designed to create and pass through to its variable interest holders. A reporting enterprise is deemed to be the primary beneficiary of a VIE if it has (a) the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and (b) the obligation to absorb losses or right to receive benefits from the VIE that could potentially be significant to the VIE. The primary beneficiary of a VIE is required to consolidate the VIE. The trust holding an 8% interest in Jeffrey Energy Center was a VIE until the expiration of a purchase option in July 2017. The trust holding KGE's 50% interest in La Cygne Unit 2 is a VIE and KGE remains the primary beneficiary of the trust.

All involvement with entities by the Evergy Companies is assessed to determine whether such entities are VIEs and, if so, whether or not the Evergy Companies are the primary beneficiaries of the entities. The Evergy Companies also continuously assess whether they are the primary beneficiary of the VIE with which they are involved. Prospective changes in facts and circumstances may cause identification of the primary beneficiary to be reconsidered.

8% Interest in Jeffrey Energy Center

Under an agreement that expires in January 2019, Westar Energy leases an 8% interest in Jeffrey Energy Center from a trust. The trust was financed with an equity contribution from an owner participant and debt issued by the trust. The trust was created specifically to purchase the 8% interest in Jeffrey Energy Center and lease it to a third party, and does not hold any other assets. Westar Energy met the requirements to be considered the primary beneficiary of the trust until July 2017, when a contractual option to purchase the 8% interest in the plant covered by the lease expired. Accordingly, Westar Energy deconsolidated the trust in the third quarter of 2017.

50% Interest in La Cygne Unit 2

Under an agreement that expires in September 2029, KGE entered into a sale-leaseback transaction with a trust under which the trust purchased KGE's 50% interest in La Cygne Unit 2 and subsequently leased it back to KGE. The trust was financed with an equity contribution from an owner participant and debt issued by the trust. The trust was created specifically to purchase the 50% interest in La Cygne Unit 2 and lease it back to KGE, and does not hold any other assets. KGE meets the requirements to be considered the primary beneficiary of the trust. In determining the primary beneficiary of the trust, KGE concluded that the activities of the trust that most significantly impact its economic performance and that KGE has the power to direct include (1) the operation and maintenance of the 50% interest in La Cygne Unit 2 and (2) KGE's ability to exercise a purchase option at the end of the agreement at the lesser of fair value or a fixed amount. KGE has the potential to receive benefits from the trust that could potentially be significant if the fair value of the 50% interest in La Cygne Unit 2 at the end of the agreement is greater than the fixed amount.

The following table summarizes the assets and liabilities related to the VIE described above that are recorded on Evergy's and Westar Energy's consolidated balance sheets.

	September 30		December 31
	2018		2017
Assets:	(millions)
Property, plant and equipment of variable interest entities, net	$	170.9	$	176.3
Liabilities:
Current maturities of long-term debt of variable interest entities	$	30.3	$	28.5
Accrued interest(a)	—		0.7
Long-term debt of variable interest entities, net	51.1		81.4

^(a)  Included in accrued interest on Evergy's and Westar Energy's consolidated balance sheets.

All of the liabilities noted in the table above relate to the purchase of the property, plant and equipment of the VIE. The assets of the VIE can be used only to settle obligations of the VIE and the VIE's debt holders have no recourse to the general credit of Evergy and Westar Energy. Evergy and Westar Energy have not provided financial or other support to the VIE and are not required to provide such support. Evergy and Westar Energy did not record any gain or loss upon the initial consolidation of the VIE.

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Taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

17. TAXES

Components of income tax expense are detailed in the following tables.

Evergy
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	(30.3	)	$	(16.7	)	$	(21.5	)	$	(14.5	)
State	1.5			—			1.9			0.4
Total	(28.8		)	(16.7		)	(19.6		)	(14.1		)
Deferred income taxes
Federal	70.6			58.8			86.0			101.7
State	23.3			14.3			(35.7		)	27.0
Total	93.9			73.1			50.3			128.7
Investment tax credit amortization	(1.0		)	(0.6		)	(2.4		)	(2.0		)
Income tax expense	$	64.1		$	55.8		$	28.3		$	112.6

Westar Energy
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	8.0		$	(16.7	)	$	18.9		$	(14.5	)
State	(9.2		)	—			(6.7		)	0.4
Total	(1.2		)	(16.7		)	12.2			(14.1		)
Deferred income taxes
Federal	12.3			58.8			15.4			101.7
State	12.0			14.3			(47.6		)	27.0
Total	24.3			73.1			(32.2		)	128.7
Investment tax credit amortization	(0.7		)	(0.6		)	(2.0		)	(2.0		)
Income tax expense (benefit)	$	22.4		$	55.8		$	(22.0	)	$	112.6

KCP&L
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	20.7		$	41.8		$	43.5		$	56.2
State	6.8			7.6			11.6			10.2
Total	27.5			49.4			55.1			66.4
Deferred income taxes
Federal	(1.9		)	10.3			(23.4		)	27.2
State	2.7			2.8			49.4			6.2
Total	0.8			13.1			26.0			33.4
Investment tax credit amortization	(0.3		)	(0.3		)	(0.8		)	(0.8		)
Income tax expense	$	28.0		$	62.2		$	80.3		$	99.0

Effective Income Tax Rates

Effective income tax rates reflected in the financial statements and the reasons for their differences from the statutory federal rates are detailed in the following tables.

Evergy
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(2.4	)	(4.6	)	(2.4	)	(4.5	)
State income taxes	4.6		4.3		4.7		4.3
Flow through depreciation for plant-related differences	(1.5	)	2.3		(1.6	)	2.8
Federal tax credits	(7.5	)	(7.1	)	(7.5	)	(7.0	)
Non-controlling interest	(0.4	)	(0.5	)	(0.4	)	(0.8	)
AFUDC equity	(0.1	)	(0.2	)	(0.1	)	(0.2	)
Amortization of federal investment tax credits	(0.6	)	(0.6	)	(0.6	)	(0.6	)
State tax rate change	0.1		—		(9.5	)	—
Valuation allowance	—		—		0.4		—
Stock compensation	—		—		(0.5	)	(1.0	)
Officer compensation limitation	1.2		—		1.2		—
Other	0.8		(2.8	)	0.4		(0.7	)
Effective income tax rate	15.2	%	25.8	%	5.1	%	27.3	%

The decrease in Evergy's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of Westar Energy's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

Westar Energy
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(4.0	)	(4.6	)	(4.0	)	(4.5	)
State income taxes	1.1		4.3		3.3		4.3
Flow through depreciation for plant-related differences	1.5		2.3		0.3		2.8
Federal tax credits	(11.8	)	(7.1	)	(11.7	)	(7.0	)
Non-controlling interest	(0.6	)	(0.5	)	(0.7	)	(0.8	)
AFUDC equity	(0.1	)	(0.2	)	(0.1	)	(0.2	)
Amortization of federal investment tax credits	(0.8	)	(0.6	)	(0.8	)	(0.6	)
Changes in uncertain tax positions, net	0.1		—		0.1		—
State tax rate change	—		—		(17.7	)	—
Valuation allowance	—		—		0.6		—
Stock compensation	—		—		(0.9	)	(1.0	)
Officer compensation limitation	1.9		—		1.9		—
Other	2.9		(2.8	)	1.3		(0.7	)
Effective income tax rate	11.2	%	25.8	%	(7.4	)%	27.3	%

The decrease in Westar Energy's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of Westar Energy's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

KCP&L
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(0.2	)	(0.3	)	(0.2	)	(0.3	)
State income taxes	5.0		3.9		5.1		3.9
Flow through depreciation for plant-related differences	(4.9	)	0.1		(4.9	)	0.2
Federal tax credits	(1.9	)	(3.1	)	(1.8	)	(2.6	)
AFUDC equity	—		(0.7	)	(0.1	)	(0.7	)
Amortization of federal investment tax credits	(0.4	)	(0.4	)	(0.4	)	(0.4	)
State tax rate change	—		—		14.5		—
Valuation allowance	—		0.6		—		0.4
Stock compensation	—		0.1		—		0.2
Officer compensation limitation	0.7		—		0.5		—
Other	(0.4	)	0.1		(1.0	)	0.1
Effective income tax rate	18.9	%	35.3	%	32.7	%	35.8	%

The increase in KCP&L's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of KCP&L's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger, partially offset by a revaluation of KCP&L's state deferred income tax assets and liabilities as a result of the enactment of Missouri state income tax reform in June 2018.

Federal Tax Reform

In December 2017, the U.S. Congress passed and President Donald Trump signed Public Law No. 115-97, commonly referred to as the Tax Cuts and Jobs Act. The Tax Cuts and Jobs Act represents the first major reform in U.S. income tax law since 1986. Most notably, the Tax Cuts and Jobs Act reduces the current top corporate income tax rate from 35% to 21% beginning in 2018, repeals the corporate Alternative Minimum Tax (AMT), makes existing AMT tax credit carryforwards refundable, and changes the deductibility and taxability of certain items, among other things. Prior to the change in tax rates that has been reflected in their 2018 rate cases,Westar Energy, KCP&L and GMO recovered the cost of income taxes in rates from their customers based on the 35% federal corporate income tax rate.

In January 2018, the KCC issued an order requiring certain regulated public utilities, including Westar Energy and KCP&L, to begin recording a regulatory liability for the difference between the new corporate tax rate and amounts currently collected in rates. In May 2018 and June 2018, Westar Energy and KCP&L entered into settlement agreements with KCC staff and other intervenors in which they further agreed to begin deferring any impacts of the Tax Cuts and Jobs Act on their excess accumulated deferred income taxes to a regulatory liability. The KCC approved these settlement agreements in June 2018. KCP&L and GMO had also recorded regulatory liabilities in 2018 due to the probability that they would also be required to make similar refunds to their Missouri customers. The final regulatory treatment of these regulatory liabilities was determined in each of Westar Energy's, KCP&L's and GMO's rate cases with the KCC and MPSC. See Note 5 for more information.

As of September 30, 2018, Evergy, Westar Energy and KCP&L had recorded regulatory liabilities for refunds to customers related to the impacts of the Tax Cuts and Jobs Act of $155.1 million, $66.3 million and $64.6 million, respectively.

Missouri Tax Reform

On June 1, 2018, the Missouri governor signed Senate Bill (S.B.) 884 into law. Most notably, S.B. 884 reduces the corporate income tax rate from 6.25% to 4.0% beginning in 2020, provides for the mandatory use of the single sales factor formula and eliminates intercompany transactions between corporations that file a consolidated Missouri income tax return.

As a result of the change in the Missouri corporate income tax rate, KCP&L revalued and restated its deferred income tax assets and liabilities as of June 1, 2018. KCP&L decreased its net deferred income tax liabilities by $46.6 million, primarily consisting of a $28.8 million adjustment for the revaluation and restatement of deferred income tax assets and liabilities included in Missouri jurisdictional rate base and a $9.9 million tax gross-up adjustment for ratemaking purposes. The decrease to KCP&L's net deferred income tax liabilities included in Missouri jurisdictional rate base were offset by a corresponding increase in regulatory liabilities. The net regulatory liabilities will be amortized to customers over a period to be determined in a future rate case.

KCP&L recognized $15.5 million of income tax benefit primarily related to the difference between KCP&L's revaluation of its deferred income tax assets and liabilities for financial reporting purposes and the amount of the revaluation pertaining to KCP&L's Missouri jurisdictional rate base.

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Organization and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Principles of Consolidation

Principles of Consolidation

Westar Energy was determined to be the accounting acquirer in the merger and thus, the predecessor of Evergy. Therefore, Evergy's consolidated financial statements reflect the results of operations of Westar Energy for the three months ended and year to date September 30, 2017 and the financial position of Westar Energy as of December 31, 2017. Evergy had separate operations for the period beginning with the quarter ended June 30, 2018, and references to amounts for periods after the closing of the merger relate to Evergy. The results of Great Plains Energy's direct subsidiaries have been included in Evergy's results of operations from the date of the closing of the merger and thereafter.

KCP&L and Westar Energy will continue to maintain their current reporting requirements as Securities and Exchange Commission (SEC) registrants. KCP&L has elected not to apply "push-down accounting" related to the merger, whereby the adjustments of assets and liabilities to fair value and the resulting goodwill would be recorded on the financial statements of the acquired subsidiary. These adjustments for KCP&L, as well as those related to the acquired assets and liabilities of Great Plains Energy and its other direct subsidiaries, are reflected at consolidated Evergy.

Each of Evergy's, Westar Energy's and KCP&L's consolidated financial statements includes the accounts of their subsidiaries and variable interest entities (VIEs) of which they are the primary beneficiary. Undivided interests in jointly-owned generation facilities are included on a proportionate basis.  Intercompany transactions have been eliminated. The Evergy Companies assess financial performance and allocate resources on a consolidated basis (i.e., operate in one segment).

In preparing financial statements that conform to generally accepted accounting principles (GAAP), management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

These unaudited consolidated financial statements have been prepared in accordance with GAAP for the United States of America for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these unaudited consolidated financial statements do not include all of the information and notes required by GAAP for annual financial statements. Because the unaudited consolidated financial statements and notes do not include all of the information and notes required by GAAP for annual financial statements, the unaudited consolidated financial statements and other information included in this quarterly report should be read in conjunction with the Westar Energy First Quarter 2018 Quarterly Report on Form 10-Q, the Great Plains Energy and KCP&L combined First Quarter 2018 Quarterly Report on Form 10-Q, the Westar Energy 2017 Form 10-K and the Great Plains Energy and KCP&L combined 2017 Form 10-K.

Certain changes in classification and corresponding reclassification of prior period data were made in Evergy's, Westar Energy's and KCP&L's unaudited consolidated balance sheets, statements of income and comprehensive income and unaudited statements of cash flows for comparative purposes. Evergy reflects the classifications of Westar Energy as the accounting acquirer in the merger. These reclassifications did not affect Evergy's, Westar Energy's or KCP&L's net income or Evergy's, Westar Energy's or KCP&L's cash flows from operations, investing or financing.

Most significantly for Westar Energy's consolidated balance sheets as of December 31, 2017 was the reclassification of $50.2 million from accrued employee benefits (currently reported as pension and post-retirement liability) to other long-term liabilities. Most significantly for KCP&L's consolidated balance sheets, current regulatory assets and liabilities have been presented separately from the non-current portions in each respective consolidated balance sheet where recovery or refund is expected within the next 12 months.

Fuel Inventory and Supplies

Fuel Inventory and Supplies

The Evergy Companies record fuel inventory and supplies at average cost.

Earnings Per Share

Earnings Per Share

Evergy has participating securities in the form of unvested restricted share units (RSUs) with nonforfeitable rights to dividend equivalents that receive dividends on an equal basis with dividends declared on common stock. As a result, Evergy applies the two-class method of computing basic and diluted earnings per share (EPS).

To compute basic EPS, Evergy divides the earnings allocated to common stock by the weighted average number of common shares outstanding. Diluted EPS includes the effect of issuable common shares resulting from RSUs with forfeitable rights to dividend equivalents, performance shares and restricted stock. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method.

New Accounting Standards

New Accounting Standards

Intangibles - Internal-Use Software

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which aligns the requirements for recording implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. An entity in a hosting arrangement that is a service contract will need to determine which project stage (that is, preliminary project stage, application development stage or post-implementation stage) an implementation activity relates. Costs for implementation activities in the application development stage are recorded as a prepaid asset depending on the nature of the costs, while costs incurred during the preliminary project and post-implementation stages are expensed as the activities are incurred. Costs that are recorded to a prepaid asset are to be expensed over the term of the hosting arrangement. The new guidance is effective for annual periods beginning after December 15, 2019 and interim periods within those fiscal years. The new guidance can be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. Early adoption is permitted. The Evergy Companies are currently evaluating the new guidance including the timing of adoption.

Compensation - Retirement Benefits

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits, which requires an employer to disaggregate the service cost component from the other components of net benefit cost. The service cost component is to be reported in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The non-service cost components are to be reported separately from service costs and outside of a subtotal of income from operations. The amendments in this update allow only the service cost component to be eligible for capitalization as part of utility plant. The non-service cost components that are no longer eligible for capitalization as part of utility plant will be recorded as a regulatory asset. The new guidance is to be applied retrospectively for the presentation of service cost and non-service cost components in the income statement and prospectively for the capitalization of the service cost component and is effective for interim and annual periods beginning after December 15, 2017. The Evergy Companies adopted ASU No. 2017-07 on January 1, 2018, and accordingly have retrospectively adjusted prior periods. The Evergy Companies utilized the practical expedient that allows for the use of amounts disclosed in Note 7 for applying the retrospective presentation to the 2017 consolidated statements of income and comprehensive income.

The following table reflects the retrospective adjustments in the line items of the Evergy Companies' consolidated statements of income and comprehensive income associated with the adoption of ASU No. 2017-07.

	Three Months Ended									Year to Date
	September 30, 2017									September 30, 2017
	As Previously Reported(b)			Effect of Change			As Reported			As Previously Reported(b)			Effect of Change			As Reported
Evergy	(millions)
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
Westar Energy
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
KCP&L(a)
Operating and maintenance expense	$	124.2		$	(9.9	)	$	114.3		$	385.0		$	(34.3	)	$	350.7
Total operating expenses	385.8			(9.9		)	375.9			1,092.4			(34.3		)	1,058.1
Income from operations	209.9			9.9			219.8			381.9			34.3			416.2
Other expense	(2.0		)	(9.9		)	(11.9		)	(6.4		)	(34.3		)	(40.7		)
Total other income (expense), net	0.7			(9.9		)	(9.2		)	0.5			(34.3		)	(33.8		)

^(a) KCP&L amounts are not included in consolidated Evergy for the three months ended and year to date September 30, 2017.

^(b) Certain Evergy, Westar Energy, and KCP&L as previously reported amounts have been adjusted to reflect reclassification adjustments made for comparative purposes as discussed further in Principles of Consolidation above and that have no impact on net income.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments, which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Among other clarifications, the guidance requires that cash proceeds received from the settlement of corporate-owned life insurance (COLI) policies be classified as cash inflows from investing activities and that cash payments for premiums on COLI policies may be classified as cash outflows for investing activities, operating activities or a combination of both. Retrospective application is required. The Evergy Companies adopted the guidance effective January 1, 2018, which resulted in retrospective reclassification of cash proceeds of $1.9 million from the settlement of COLI policies from cash inflows from operating activities to cash inflows from investing activities for year to date September 30, 2017, for Evergy and Westar Energy.  In addition, cash payments of $2.3 million for premiums on COLI policies were reclassified from cash outflows used in operating activities to cash outflows used in investing activities for the same period for Evergy and Westar Energy. The adoption of ASU No. 2016-15 did not have a material impact on KCP&L.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash, which requires that the statement of cash flows explains the change for the period of restricted cash and restricted cash equivalents along with cash and cash equivalents. The guidance requires a retrospective transition method and is effective for fiscal years beginning after December 15, 2017. The Evergy Companies adopted the guidance effective January 1, 2018. As a result, Evergy and Westar Energy adjusted amounts previously reported for cash and cash equivalents to include restricted cash which resulted in an increase to beginning and ending cash, cash equivalents and restricted cash of $0.1 million for year to date September 30, 2017. The adoption of ASU No. 2016-18 did not have a material impact on KCP&L.

Leases

In February 2016, the FASB issued ASU No. 2016-02, Leases, which requires an entity that is a lessee to record a right-of-use asset and a lease liability for lease payments on the balance sheet for all leases with terms longer than 12 months.  Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement.  The new guidance is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted, and requires a modified retrospective transition approach with an option to either adjust or not adjust comparative periods.  The Evergy Companies plan to adopt the new guidance on January 1, 2019, without adjusting comparative periods. In 2016, management began evaluating current leases to assess the initial impact on Evergy's consolidated financial results. The Evergy Companies continue to evaluate the guidance and disclosure requirements and believe application of the guidance will result in an increase to the assets and liabilities on their consolidated balance sheets, with minimal impact to their consolidated statements of income and comprehensive income. In addition, management is evaluating the Evergy Companies' internal controls over financial reporting as needed to ensure that they remain effective after implementation. The standard permits an entity to elect a practical expedient for existing or expired contracts to forgo reassessing leases to determine whether each is in scope of the new standard and to forgo reassessing lease classification. The Evergy Companies expect to elect this practical expedient upon implementation. In July 2018, the FASB issued ASU No. 2018-11, which provides entities an optional transition method to apply ASU No. 2016-02 as of the date of initial application of the standard rather than as of the earliest period presented. The Evergy Companies are evaluating this update and have not yet determined if they will elect to use this optional transition method.

Financial Instruments

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities, which generally requires equity investments to be measured at fair value with changes in fair value recognized in net income. Under the new standard, equity securities are no longer to be classified as available-for-sale or trading securities. The guidance requires a modified retrospective transition method. This guidance is effective for fiscal years beginning after December 15, 2017; accordingly, the Evergy Companies adopted the new standard on January 1, 2018, without a material impact on their consolidated financial statements.

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. In August 2015, the FASB issued ASU No. 2015-14, deferring the effective date of ASU No. 2014-09 one year, from January 1, 2017, to January 1, 2018. The ASU replaced most existing revenue recognition guidance in GAAP when it became effective. The Evergy Companies adopted ASU No. 2014-09 and its related amendments (ASC 606) on January 1, 2018, using the modified retrospective transition method for all contracts not completed as of the date of adoption. Results for reporting periods beginning after January 1, 2018 are presented under ASC 606 while historical periods have not been adjusted and continue to be reported in accordance with the legacy guidance in ASC 605 - Revenue Recognition.

There was no cumulative effect adjustment to the opening balance of retained earnings in 2018 for the Evergy Companies as a result of the adoption of the new guidance. The impact to both operating revenues and taxes other than income taxes on KCP&L's statements of comprehensive income in 2018 as a result of adopting ASC 606 was a decrease of $22.1 million and $59.7 million for the three months ended and year to date September 30, 2018, respectively. This impact was related to sales taxes and franchise fees collected from KCP&L's Missouri customers, which prior to ASC 606, were recorded gross on KCP&L's statements of comprehensive income. See Note 3 for more information on revenue from contracts with customers.

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Organization and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Summary of Reclassifications

The table below summarizes KCP&L's reclassifications related to operating and investing activities for its consolidated statement of cash flows for year to date September 30, 2017.

	Year to Date
	September 30, 2017
	As Filed			Updated
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	(in millions)
Adjustments to reconcile income to net cash from operating activities:
Amortization of other	$	23.4		$	—
Amortization of deferred refueling outage	—			13.7
Deferred income taxes, net	33.4			—
Investment tax credit amortization	(0.8		)	—
Net deferred income taxes and credits	—			32.6
Payments for asset retirement obligations	—			(14.9		)
Other(a)	(16.0		)	6.3
Changes in working capital items:
Fuel inventory and supplies	—			3.6
Fuel inventories(a)	10.8			—
Materials and supplies(a)	(7.2		)	—
Prepaid expenses and other current assets	—			8.9
Accrued interest(a)	8.1			—
Other current liabilities	—			9.9
Changes in other assets	—			52.6
Changes in other liabilities	—			7.3
Deferred refueling outage costs(a)	12.1			—
Pension and post-retirement benefit obligations(a)	48.6			—
Fuel recovery mechanisms(a)	7.6			—
Total reclassifications	$	120.0		$	120.0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	$	—		$	(317.1	)
Utility capital expenditures	(295.1		)	—
Allowance for borrowed funds used during construction	(4.2		)	—
Other investing activities	(17.0		)	0.8
Total reclassifications	$	(316.3	)	$	(316.3	)

^(a)Previously reported within Note 3 to the consolidated financial statements of the Great Plains Energy and KCP&L combined Third Quarter 2017 Quarterly Report on Form 10-Q.

Schedule of Fuel Inventory and Supplies

The balances for fuel inventory and supplies are stated separately in the table below.

	September 30			December 31
		2018			2017
Evergy		(millions)
Fuel inventory		$	163.1		$	94.1
Supplies		357.8			199.5
Fuel inventory and supplies		$	520.9		$	293.6
Westar Energy
Fuel inventory		$	84.9		$	94.1
Supplies		183.8			199.5
Fuel inventory and supplies		$	268.7		$	293.6
KCP&L(a)
Fuel inventory		$	54.6		$	71.0
Supplies		129.2			126.0
Fuel inventory and supplies		$	183.8		$	197.0

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Summary of Property, Plant and Equipment

The following tables summarize the property, plant and equipment of Evergy, Westar Energy and KCP&L.

September 30, 2018	Evergy			Westar Energy			KCP&L
	(millions)
Electric plant in service	$	27,290.0		$	13,236.1		$	10,594.2
Electric plant acquisition adjustment	740.6			740.6			—
Accumulated depreciation	(10,168.2		)	(4,838.9		)	(4,172.3		)
Plant in service	17,862.4			9,137.8			6,421.9
Construction work in progress	723.5			443.6			183.4
Nuclear fuel, net	109.1			54.1			55.0
Plant to be retired, net(b)	141.0			2.0			—
Property, plant and equipment, net	$	18,836.0		$	9,637.5		$	6,660.3
December 31, 2017	Evergy			Westar Energy			KCP&L(a)
	(millions)
Electric plant in service	$	12,954.3		$	12,954.3		$	10,213.2
Electric plant acquisition adjustment	739.0			739.0			—
Accumulated depreciation	(4,651.7		)	(4,651.7		)	(4,070.3		)
Plant in service	9,041.6			9,041.6			6,142.9
Construction work in progress	434.9			434.9			350.3
Nuclear fuel, net	71.4			71.4			72.4
Plant to be retired, net(b)	5.9			5.9			—
Property, plant and equipment, net	$	9,553.8		$	9,553.8		$	6,565.6

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

^(b) As of September 30, 2018, represents the planned retirement of GMO's Sibley No. 3 Unit and Westar Energy analog meters prior to the end of their remaining useful lives. As of December 31, 2017, represents the planned retirement of Westar Energy analog meters prior to the end of their remaining useful lives.

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles Evergy's basic and diluted EPS.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Income	(millions, except per share amounts)
Net income	$	357.6	$	160.7	$	524.9	$	300.2
Less: net income attributable to noncontrolling interests	2.6		2.4		7.6		10.2
Net income attributable to Evergy, Inc.	355.0		158.3		517.3		290.0
Less: net income allocated to RSUs	0.2		0.3		0.4		0.5
Net income allocated to common stock	$	354.8	$	158.0	$	516.9	$	289.5
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic	268.6		142.5		197.9		142.5
Add: effect of dilutive securities	0.2		—		0.1		—
Weighted average equivalent common shares outstanding - diluted	268.8		142.5		198.0		142.5
Basic and Diluted EPS	$	1.32	$	1.11	$	2.61	$	2.03

Supplemental Cash Flow Information

Year to Date September 30	2018			2017
Evergy	(millions)
Cash paid for (received from):
Interest, net of amounts capitalized	$	148.7		$	109.0
Interest of VIEs	2.3			3.1
Income taxes, net of refunds	0.6			(12.6		)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(24.8		)	112.5
Deconsolidation of property, plant and equipment of VIE	—			(72.9		)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.4			4.9
Deconsolidation of VIE	—			(83.1		)
Assets acquired through capital leases	0.1			4.6
Westar Energy
Cash paid for (received from):
Interest, net of amounts capitalized	$	110.5		$	109.0
Interest of VIEs	2.3			3.1
Income taxes, net of refunds	—			(12.6		)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(42.0		)	112.5
Deconsolidation of property, plant and equipment of VIE	—			(72.9		)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	—			4.9
Deconsolidation of VIE	—			(83.1		)
Assets acquired through capital leases	0.1			4.6
KCP&L(a)
Cash paid for (received from):
Interest, net of amounts capitalized	$	87.6		$	88.6
Income taxes, net of refunds	28.4			4.9
Non-cash investing transactions:
Property, plant and equipment additions	15.2			15.5

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Schedule of Retrospective Adjustments

The following table reflects the retrospective adjustments in the line items of the Evergy Companies' consolidated statements of income and comprehensive income associated with the adoption of ASU No. 2017-07.

	Three Months Ended									Year to Date
	September 30, 2017									September 30, 2017
	As Previously Reported(b)			Effect of Change			As Reported			As Previously Reported(b)			Effect of Change			As Reported
Evergy	(millions)
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
Westar Energy
Operating and maintenance expense	$	145.5		$	(4.9	)	$	140.6		$	430.6		$	(15.0	)	$	415.6
Total operating expenses	534.3			(4.9		)	529.4			1,434.7			(15.0		)	1,419.7
Income from operations	260.0			4.9			264.9			541.5			15.0			556.5
Other expense	(6.6		)	(4.9		)	(11.5		)	(14.6		)	(15.0		)	(29.6		)
Total other income (expense), net	(1.7		)	(4.9		)	(6.6		)	(5.4		)	(15.0		)	(20.4		)
KCP&L(a)
Operating and maintenance expense	$	124.2		$	(9.9	)	$	114.3		$	385.0		$	(34.3	)	$	350.7
Total operating expenses	385.8			(9.9		)	375.9			1,092.4			(34.3		)	1,058.1
Income from operations	209.9			9.9			219.8			381.9			34.3			416.2
Other expense	(2.0		)	(9.9		)	(11.9		)	(6.4		)	(34.3		)	(40.7		)
Total other income (expense), net	0.7			(9.9		)	(9.2		)	0.5			(34.3		)	(33.8		)

^(a) KCP&L amounts are not included in consolidated Evergy for the three months ended and year to date September 30, 2017.

^(b) Certain Evergy, Westar Energy, and KCP&L as previously reported amounts have been adjusted to reflect reclassification adjustments made for comparative purposes as discussed further in Principles of Consolidation above and that have no impact on net income.

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Merger of Great Plains Energy and Westar Energy (Tables)

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Schedule of Pre-tax Costs and Deferrals and Purchase Price Allocation

The following pre-tax reductions of revenue, expenses and deferral were recognized following the consummation of the merger and are included in the Evergy Companies' consolidated statements of income and comprehensive income for year to date September 30, 2018.

Description	Income Statement Line Item	Expected Payment Period	Evergy			Westar Energy			KCP&L
			(millions)
One-time bill credits	Operating revenues	2018 - 2019	$	(59.7	)	$	(23.1	)	$	(22.4	)
Annual bill credits	Operating revenues	2019 - 2022	(7.6		)	(5.8		)	(1.9		)
Total impact to operating revenues			$	(67.3	)	$	(28.9	)	$	(24.3	)
Charitable contributions and community support	Operating and maintenance	2018 - 2027	$	24.7		$	—		$	—
Voluntary severance and accelerated equity compensation	Operating and maintenance	2018 - 2019	40.7			40.7			—
Other transaction and transition costs	Operating and maintenance	2018	47.0			20.4			1.7
Reallocation and deferral of merger transition costs	Operating and maintenance	n/a	(47.8		)	(13.3		)	(23.9		)
Total impact to operating and maintenance expense			$	64.6		$	47.8		$	(22.2	)
Total			$	(131.9	)	$	(76.7	)	$	(2.1	)

The total consideration transferred in the merger is based on the closing stock price of Westar Energy on June 4, 2018 and is calculated as follows.

	(millions, except share amounts)
Great Plains Energy common stock shares outstanding as of June 4, 2018	215,800,074
Great Plains Energy restricted stock awards outstanding as of June 4, 2018	(204,825		)
Great Plains Energy shares to be converted to Evergy shares	215,595,249
Exchange ratio	0.5981
Evergy common stock shares issued to Great Plains Energy shareholders	128,947,518
Closing price of Westar Energy common stock as of June 4, 2018	$	54.00
Fair value of Evergy shares issued to Great Plains Energy shareholders	$	6,963.2
Fair value of Great Plains Energy's equity compensation awards	12.5
Total purchase price	$	6,975.7

Schedule of Assets Acquired and Liabilities Assumed

The preliminary purchase price allocation to Great Plains Energy's assets and liabilities as of June 4, 2018 is detailed in the following table.

	(millions)
Current assets	$	2,151.7
Property, plant and equipment, net	9,179.7
Goodwill	2,333.5
Other long-term assets, excluding goodwill	1,235.9
Total assets	$	14,900.8
Current liabilities	1,673.9
Long-term liabilities, excluding long-term debt	2,892.6
Long-term debt, net	3,358.6
Total liabilities	$	7,925.1
Total purchase price	$	6,975.7

Unaudited Pro Forma Financial Information

The unaudited pro forma financial information has been presented for illustrative purposes only and is not necessarily indicative of the consolidated results of operations that would have been achieved or the future consolidated results of operations of Evergy.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
	(millions, except per share amounts)
Operating revenues	$	1,582.5	$	1,651.5	$	4,134.8	$	4,086.7
Net income attributable to Evergy, Inc.	360.2		321.8		694.5		543.3
Basic earnings per common share	$	1.34	$	1.19	$	2.56	$	2.00
Diluted earnings per common share	$	1.34	$	1.19	$	2.55	$	2.00

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Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Evergy's, Westar Energy's and KCP&L's revenues disaggregated by customer class are summarized in the following tables.

Three Months Ended September 30, 2018	Evergy		Westar Energy		KCP&L
Revenues	(millions)
Residential	$	647.1	$	270.5	$	243.5
Commercial	530.5		217.4		231.1
Industrial	173.4		111.9		39.1
Other retail	10.9		5.4		2.7
Total electric retail	$	1,361.9	$	605.2	$	516.4
Wholesale	118.5		82.4		29.9
Transmission	80.6		72.2		3.8
Industrial steam and other	6.0		1.5		0.7
Total revenue from contracts with customers	$	1,567.0	$	761.3	$	550.8
Other	15.5		3.5		8.8
Operating revenues	$	1,582.5	$	764.8	$	559.6
Year to Date September 30, 2018	Evergy		Westar Energy		KCP&L(a)
Revenues	(millions)
Residential	$	1,169.4	$	671.9	$	585.4
Commercial	945.0		542.8		609.2
Industrial	375.5		297.2		105.4
Other retail	21.5		15.3		7.7
Total electric retail	$	2,511.4	$	1,527.2	$	1,307.7
Wholesale	302.4		263.7		38.5
Transmission	227.6		216.3		11.0
Industrial steam and other	10.0		4.6		3.0
Total revenue from contracts with customers	$	3,051.4	$	2,011.8	$	1,360.2
Other	24.7		4.1		48.7
Operating revenues	$	3,076.1	$	2,015.9	$	1,408.9

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

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Receivables (Tables)

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Schedule of Receivables

The Evergy Companies' receivables are detailed in the following table.

	September 30				December 31
		2018				2017
Evergy		(millions)
Customer accounts receivable - billed		$	231.7			$	165.4
Customer accounts receivable - unbilled		191.1				76.6
Other receivables		82.4				55.4
Allowance for doubtful accounts		(8.7		)		(6.7		)
Total		$	496.5			$	290.7
Westar Energy
Customer accounts receivable - billed		$	194.0			$	165.4
Customer accounts receivable - unbilled		96.7				76.6
Other receivables		60.7				55.4
Allowance for doubtful accounts		(3.9		)		(6.7		)
Total		$	347.5			$	290.7
KCP&L (a)
Customer accounts receivable - billed		$	25.3			$	1.6
Customer accounts receivable - unbilled		66.6				67.6
Other receivables		14.5				39.3
Allowance for doubtful accounts		(3.5		)		(2.2		)
Total		$	102.9			$	106.3

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Summary of Bad Debt Expense

The Evergy Companies recorded bad debt expense related to contracts with customers as summarized in the following table.

	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
	(millions)
Evergy	$	4.5	$	2.0	$	10.6	$	5.4
Westar Energy	1.1		2.0		6.2		5.4
KCP&L (a)	3.9		2.8		7.5		6.0

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

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Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2018

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation

The following table summarizes the change in the Evergy Companies' AROs for the periods ending September 30, 2018 and December 31, 2017.

	Evergy						Westar Energy						KCP&L(a)
	2018			2017			2018			2017			2018			2017
	(millions)
Beginning balance, January 1	$	405.1		$	324.0		$	405.1		$	324.0		$	266.3		$	278.0
Liabilities assumed upon merger with Great Plains Energy	412.2			—			—			—			—			—
Liabilities incurred during the year	7.4			13.5			7.4			13.5			—			—
Revision in timing and/or estimates	(138.6		)	66.8			(133.0		)	66.8			(5.7		)	0.3
Settlements	(15.9		)	(16.0		)	(10.6		)	(16.0		)	(9.9		)	(25.5		)
Accretion	22.1			16.8			14.0			16.8			12.6			13.5
Ending balance	$	692.3		$	405.1		$	282.9		$	405.1		$	263.3		$	266.3
Less: current portion	(69.6		)	(25.1		)	(25.1		)	(25.1		)	(40.6		)	(34.9		)
Total noncurrent asset retirement obligation	$	622.7		$	380.0		$	257.8		$	380.0		$	222.7		$	231.4

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

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Pension Plans and Other Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants.

	Pension Benefits									Post-Retirement Benefits
Three Months Ended September 30, 2018	Evergy			Westar Energy			KCP&L			Evergy			Westar Energy			KCP&L
Components of net periodic benefit costs	(millions)
Service cost	$	20.2		$	8.0		$	9.1		$	0.7		$	0.4		$	0.4
Interest cost	26.3			12.7			9.4			2.5			1.2			0.8
Expected return on plan assets	(27.0		)	(13.9		)	(10.6		)	(2.5		)	(1.8		)	(0.4		)
Amortization of unrecognized:
Prior service cost	0.3			0.2			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	8.1			8.1			8.4			(0.1		)	(0.1		)	—
Net periodic benefit costs before regulatory adjustment	27.9			15.1			16.5			0.7			(0.2		)	0.8
Regulatory adjustment	2.6			2.8			0.7			(0.4		)	(0.4		)	0.1
Net periodic benefit costs	$	30.5		$	17.9		$	17.2		$	0.3		$	(0.6	)	$	0.9
	Pension Benefits									Post-Retirement Benefits
Year to Date September 30, 2018	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	40.4		$	24.1		$	27.4		$	1.5		$	1.0		$	1.1
Interest cost	56.2			38.1			28.3			5.4			3.7			2.5
Expected return on plan assets	(59.3		)	(41.9		)	(31.7		)	(6.2		)	(5.2		)	(1.4		)
Amortization of unrecognized:
Prior service cost	0.6			0.5			0.4			0.3			0.3			—
Recognized net actuarial (gain)/loss	24.4			24.4			25.1			(0.4		)	(0.4		)	(0.1		)
Net periodic benefit costs before regulatory adjustment	62.3			45.2			49.5			0.6			(0.6		)	2.1
Regulatory adjustment	8.4			8.4			2.1			(1.3		)	(1.3		)	(0.2		)
Net periodic benefit costs	$	70.7		$	53.6		$	51.6		$	(0.7	)	$	(1.9	)	$	1.9

^(a) KCP&L amounts are included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

	Pension Benefits									Post-Retirement Benefits
Three Months Ended September 30, 2017	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	7.2		$	7.2		$	8.1		$	0.3		$	0.3		$	0.4
Interest cost	13.1			13.1			9.8			1.4			1.4			0.9
Expected return on plan assets	(13.4		)	(13.4		)	(9.5		)	(1.8		)	(1.8		)	(0.4		)
Amortization of unrecognized:
Prior service cost	0.1			0.1			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	6.7			6.7			8.9			(0.2		)	(0.2		)	(0.1		)
Net periodic benefit costs before regulatory adjustment	13.7			13.7			17.5			(0.2		)	(0.2		)	0.8
Regulatory adjustment	3.6			3.6			0.2			(0.4		)	(0.4		)	(0.1		)
Net periodic benefit costs	$	17.3		$	17.3		$	17.7		$	(0.6	)	$	(0.6	)	$	0.7
(a) KCP&L amounts are not included in consolidated Evergy for the three months ended September 30, 2017.
	Pension Benefits									Post-Retirement Benefits
Year to Date September 30, 2017	Evergy			Westar Energy			KCP&L(a)			Evergy			Westar Energy			KCP&L(a)
Components of net periodic benefit costs	(millions)
Service cost	$	21.5		$	21.5		$	24.4		$	0.9		$	0.9		$	1.1
Interest cost	39.3			39.3			29.4			4.2			4.2			2.8
Expected return on plan assets	(40.2		)	(40.2		)	(28.6		)	(5.2		)	(5.2		)	(1.3		)
Amortization of unrecognized:
Prior service cost	0.5			0.5			0.4			0.3			0.3			—
Recognized net actuarial (gain)/loss	20.2			20.2			26.7			(0.6		)	(0.6		)	(0.3		)
Net periodic benefit costs before regulatory adjustment	41.3			41.3			52.3			(0.4		)	(0.4		)	2.3
Regulatory adjustment	10.6			10.6			4.3			(1.4		)	(1.4		)	0.9
Net periodic benefit costs	$	51.9		$	51.9		$	56.6		$	(1.8	)	$	(1.8	)	$	3.2

^(a) KCP&L amounts are not included in consolidated Evergy for year to date September 30, 2017.

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Equity Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity compensation expense and associated income tax benefits

The following table summarizes the Evergy Companies' equity compensation expense and the associated income tax (expense) benefit.

	Three Months Ended September 30					Year to Date September 30
	2018			2017		2018			2017
Evergy	(millions)
Equity compensation expense	$	4.3		$	2.1	$	26.0		$	6.7
Income tax (expense) benefit	(1.5		)	0.8		1.9			2.6
Westar Energy
Equity compensation expense	$	2.0		$	2.1	$	22.6		$	6.7
Income tax (expense) benefit	(1.0		)	0.8		2.1			2.6
KCP&L(a)
Equity compensation expense	$	1.6		$	1.2	$	4.8		$	2.9
Income tax (expense) benefit	(0.7		)	0.4		(0.1		)	1.2

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the closing of the merger, June 4, 2018, through September 30, 2018.

Performance share activity

Performance share activity for year to date September 30, 2018 is summarized in the following table.

	Performance Shares			Grant Date Fair Value*
Beginning balance January 1, 2018		—			$	—
Converted Great Plains Energy awards upon merger		351,708			63.79
Forfeited		(3,212	)		63.44
Ending balance September 30, 2018		348,496			63.80

* weighted-average

Restricted stock activity

Restricted stock activity for year to date September 30, 2018 is summarized in the following table.

	Nonvested Restricted Stock			Grant Date Fair Value*
Beginning balance January 1, 2018		—			$	—
Converted Great Plains Energy awards upon merger		122,505			54.05
Vested		(4,222	)		54.50
Forfeited		(1,070	)		54.04
Ending balance September 30, 2018		117,213			54.03

* weighted-average

Restricted stock unit activity

RSU activity for awards with only service requirements for year to date September 30, 2018 is summarized in the following table.

	Nonvested Restricted Share Units			Grant Date Fair Value*
Beginning balance January 1, 2018		255,964			$	46.09
Granted		222,465			52.16
Converted Great Plains Energy awards upon merger		82,331			53.77
Vested		(342,599	)		46.81
Forfeited		(905	)		50.73
Ending balance September 30, 2018		217,256			54.07

* weighted-average

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Short-term Borrowings and Short-term Bank Lines of Credit (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Short-term Debt [Table Text Block]

The following table summarizes the committed credit facilities (excluding receivable sale facilities) available to the Evergy Companies as of September 30, 2018 and December 31, 2017.

			Amounts Drawn
	Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
September 30, 2018	(millions)
Evergy, Inc.	$	450.0	n/a		$	1.0	$	—	$	449.0	—%
Westar Energy	1,000.0		326.3		18.3		—		655.4		2.42%
KCP&L	600.0		209.2		2.7		—		388.1		2.50%
GMO	450.0		140.4		2.1		—		307.5		2.46%
Evergy	$	2,500.0	$	675.9	$	24.1	$	—	$	1,800.0
December 31, 2017
Westar Energy(b)	$	979.3	$	275.7	$	11.8	$	—	$	691.8	1.83%
KCP&L(a)	600.0		167.5		2.7		—		429.8		1.95%
Evergy	979.3		275.7		11.8		—		691.8		1.83%

^(a) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

^(b) $20.7 million of Westar Energy's $730.0 million and $270.0 million revolving credit facilities expired in September 2017.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Carrying value and fair value of debt instruments

The Evergy Companies measure the fair value of long-term debt using Level 2 measurements available as of the measurement date. The book value and fair value of the Evergy Companies' long-term debt and long-term debt of variable interest entities is summarized in the following table.

	September 30, 2018				December 31, 2017
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt(a)	(millions)
Evergy(b)	$	7,349.4	$	7,362.2	$	3,687.6	$	4,010.6
Westar Energy	3,689.7		3,750.8		3,687.6		4,010.6
KCP&L(c)	2,529.9		2,611.3		2,582.2		2,799.1
Long-term debt of variable interest entities(a)
Evergy	$	81.4	$	80.7	$	109.9	$	110.8
Westar Energy	81.4		80.7		109.9		110.8

^(a) Includes current maturities.

^(b) Book value as of September 30, 2018 includes $153.0 million of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Westar Energy merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument. See Note 2 for more information regarding the merger transaction.

^(c) KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Fair value of assets and liabilities

The following tables include the Evergy Companies' balances of financial assets and liabilities measured at fair value on a recurring basis.

Description	September 30 2018			Level 1		Level 2			Level 3			NAV
Westar Energy		(millions)
Assets
Nuclear decommissioning trust(a)
Domestic equity funds		$	80.9	$	74.7		$	—		$	—		$	6.2
International equity funds		42.3		42.3			—			—			—
Core bond fund		36.8		36.8			—			—			—
High-yield bond fund		20.1		20.1			—			—			—
Emerging markets bond fund		15.5		15.5			—			—			—
Combination debt/equity/other fund		14.8		14.8			—			—			—
Alternative investments fund		23.6		—			—			—			23.6
Real estate securities fund		11.5		—			—			—			11.5
Cash equivalents		0.3		0.3			—			—			—
Total nuclear decommissioning trust		245.8		204.5			—			—			41.3
Rabbi trust
Core bond fund		24.9		—			—			—			24.9
Combination debt/equity/other fund		6.2		—			—			—			6.2
Cash equivalents		0.1		0.1			—			—			—
Total rabbi trust		31.2		0.1			—			—			31.1
Total		$	277.0	$	204.6		$	—		$	—		$	72.4
KCP&L
Assets
Nuclear decommissioning trust(a)
Equity securities		$	195.2	$	195.2		$	—		$	—		$	—
Debt securities
U.S. Treasury		39.5		39.5			—			—			—
U.S. Agency		0.4		—			0.4			—			—
State and local obligations		2.1		—			2.1			—			—
Corporate bonds		32.3		—			32.3			—			—
Foreign governments		0.1		—			0.1			—			—
Cash equivalents		1.5		1.5			—			—			—
Other		1.1		1.1			—			—			—
Total nuclear decommissioning trust		272.2		237.3			34.9			—			—
Self-insured health plan trust(b)
Equity securities		0.5		0.5			—			—			—
Debt securities		3.1		0.3			2.8			—			—
Cash and cash equivalents		9.4		9.4			—			—			—
Total self-insured health plan trust		13.0		10.2			2.8			—			—
Total		$	285.2	$	247.5		$	37.7		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.5	$	—		$	—		$	—		$	13.5
Total rabbi trusts		$	13.5	$	—		$	—		$	—		$	13.5
Evergy
Assets
Nuclear decommissioning trust (a)		$	518.0	$	441.8		$	34.9		$	—		$	41.3
Rabbi trusts		44.7		0.1			—			—			44.6
Self-insured health plan trust (b)		13.0		10.2			2.8			—			—
Total		$	575.7	$	452.1		$	37.7		$	—		$	85.9

Description	December 31 2017			Level 1			Level 2			Level 3			NAV
Westar Energy		(millions)
Assets
Nuclear decommissioning trust(a)(c)
Domestic equity funds		$	73.8		$	—		$	68.7		$	—		$	5.1
International equity funds		47.9			—			47.9			—			—
Core bond fund		33.3			—			33.3			—			—
High-yield bond fund		18.1			—			18.1			—			—
Emerging markets bond fund		17.3			—			17.3			—			—
Combination debt/equity/other fund		14.1			—			14.1			—			—
Alternative investments fund		21.7			—			—			—			21.7
Real estate securities fund		10.8			—			—			—			10.8
Cash equivalents		0.1			0.1			—			—			—
Total nuclear decommissioning trust		237.1			0.1			199.4			—			37.6
Rabbi trust(c)
Core bond fund		27.3			—			27.3			—			—
Combination debt/equity/other fund		6.8			—			6.8			—			—
Cash equivalents		0.2			0.2			—			—			—
Total rabbi trust		34.3			0.2			34.1			—			—
Total		$	271.4		$	0.3		$	233.5		$	—		$	37.6
KCP&L(d)
Assets
Nuclear decommissioning trust (a)
Equity securities		$	183.8		$	183.8		$	—		$	—		$	—
Debt securities
U.S. Treasury		35.3			35.3			—			—			—
U.S. Agency		0.4			—			0.4			—			—
State and local obligations		2.1			—			2.1			—			—
Corporate bonds		34.1			—			34.1			—			—
Foreign governments		0.1			—			0.1			—			—
Cash equivalents		2.5			2.5			—			—			—
Other		0.1			0.1			—			—			—
Total nuclear decommissioning trust		258.4			221.7			36.7			—			—
Self-insured health plan trust(b)
Equity securities		0.5			0.5			—			—			—
Debt securities		2.7			0.3			2.4			—			—
Cash and cash equivalents		7.7			7.7			—			—			—
Total self-insured health plan trust		10.9			8.5			2.4			—			—
Total		$	269.3		$	230.2		$	39.1		$	—		$	—
Evergy
Assets
Nuclear decommissioning trust(a)(c)		$	237.1		$	0.1		$	199.4		$	—		$	37.6
Rabbi trust(c)		34.3			0.2			34.1			—			—
Total		$	271.4		$	0.3		$	233.5		$	—		$	37.6

^(a)  Fair value is based on quoted market prices of the investments held by the trust and/or valuation models.  

^(b)  Fair value is based on quoted market prices of the investments held by the trust. Debt securities classified as Level 1 are comprised of U.S. Treasury securities. Debt securities classified as Level 2 are comprised of corporate bonds, U.S. Agency, state and local obligations, and other asset-backed securities.

^(c)  In the second quarter of 2018, Evergy and Westar Energy re-evaluated the classification, within the fair value hierarchy, of their various fund investments within both Westar Energy's nuclear decommissioning trust and rabbi trusts. As a result, Evergy and Westar Energy determined that certain fund investments within the nuclear decommissioning trust in the amount of $199.4 million as of December 31, 2017, should have been classified as Level 1, instead of Level 2. This determination is based on the fact that the fair value of these funds is based on daily published prices at which Evergy and Westar Energy are able to redeem their investments without restriction on a daily basis. Evergy and Westar Energy also determined that certain fund investments within their rabbi trusts in the amount of $34.1 million as of December 31, 2017, should have been measured using the NAV per share (or its equivalent) practical expedient, instead of as a Level 2 investment. This determination is based on the fact that these funds do not meet the definition of readily determinable fair value due to the absence of a published NAV. Evergy and Westar Energy have determined that these errors are immaterial to their current and previously filed financial reports and accordingly, have not revised prior periods but have reflected the changes in fair value hierarchy classification as of September 30, 2018.

^(d)  KCP&L amounts are not included in consolidated Evergy as of December 31, 2017.

Fair value investments, entities that calculate NAV

The following table provides additional information on these Evergy and Westar Energy investments.

	September 30, 2018				December 31, 2017				September 30, 2018
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Westar Energy	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	6.2	$	4.8	$	5.1	$	2.8	(a)	(a)
Alternative investments fund(b)	23.6		—		21.7		—		Quarterly	65 days
Real estate securities fund(b)	11.5		—		10.8		—		Quarterly	65 days
Total	$	41.3	$	4.8	$	37.6	$	2.8
Rabbi trust:
Core bond fund	$	24.9	$	—	$	—	$	—	(c)	(c)
Combination debt/equity/other fund	6.2		—		—		—		(c)	(c)
Total	$	31.1	$	—	$	—	$	—
Other Evergy
Rabbi trusts:
Fixed income fund(d)	$	13.5	$	—	$	—	$	—	(c)	(c)
Total Evergy investments at NAV	$	85.9	$	4.8	$	37.6	$	2.8

^(a)  This investment is in five long-term private equity funds that do not permit early withdrawal. Investments in these funds cannot be distributed until the underlying investments have been liquidated, which may take years from the date of initial liquidation. Three funds have begun to make distributions. The initial investment in the fourth and fifth fund occurred in the second quarter of 2016 and first quarter of 2018, respectively. The fourth fund's term is 15 years, subject to the general partner's right to extend the the term for up to three additional one-year periods.  The fifth fund's term will be 15 years after the initial closing date, subject to additional extensions approved by the Advisory Committee to provide for an orderly liquidation of fund investments and dissolution of the fund.

^(b)  There is a holdback on final redemptions.

^(c)  This investment can be redeemed immediately and is not subject to any restrictions on redemptions.

^(d)  This investment is recorded at GMO. GMO amounts are not included in consolidated Evergy as of December 31, 2017.

Fair value recurring gain (loss) included in earnings

The following table summarizes the net unrealized gains (losses) for the Evergy Companies' nuclear decommissioning trusts and rabbi trusts.

	Three Months Ended September 30					Year to Date September 30
	2018			2017		2018			2017
Westar Energy	(millions)
Nuclear decommissioning trust - equity securities	$	6.5		$	7.7	$	(6.4	)	$	22.2
Rabbi trust	3.7			16.5		3.2			19.0
Total	$	10.2		$	24.2	$	(3.2	)	$	41.2
KCP&L(a)
Nuclear decommissioning trust - equity securities	$	8.6		$	6.9	$	9.1		$	17.8
Nuclear decommissioning trust - debt securities	(0.5		)	—		(2.8		)	0.7
Total	$	8.1		$	6.9	$	6.3		$	18.5
Evergy
Nuclear decommissioning trust - equity securities	$	15.1		$	7.7	$	1.1		$	22.2
Nuclear decommissioning trust - debt securities	(0.5		)	—		(0.8		)	—
Rabbi trusts	3.7			16.5		3.1			19.0
Total	$	18.3		$	24.2	$	3.4		$	41.2

^(a) KCP&L amounts are only included in consolidated Evergy from the date of the merger, June 4, 2018 through September 30, 2018.

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Related Party Transactions and Relationships (Tables)

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Schedule of related party receivables and payables

The following table summarizes Westar Energy's and KCP&L's related party net receivables and payables.

	September 30			December 31
	2018			2017
Westar Energy	(millions)
Net receivable from GMO	$	0.7		$	—
Net payable to KCP&L	(59.3		)	—
Net payable to Evergy	(14.6		)	—
KCP&L
Net receivable from GMO	$	63.3		$	65.8
Net receivable from Westar Energy	59.3			—
Net receivable from Evergy	16.4			—
Net receivable from Great Plains Energy	—			18.9

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Variable Interest Entities (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Variable Interest Entities

The following table summarizes the assets and liabilities related to the VIE described above that are recorded on Evergy's and Westar Energy's consolidated balance sheets.

	September 30		December 31
	2018		2017
Assets:	(millions)
Property, plant and equipment of variable interest entities, net	$	170.9	$	176.3
Liabilities:
Current maturities of long-term debt of variable interest entities	$	30.3	$	28.5
Accrued interest(a)	—		0.7
Long-term debt of variable interest entities, net	51.1		81.4

^(a)  Included in accrued interest on Evergy's and Westar Energy's consolidated balance sheets.

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Taxes (Tables)

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

Components of income tax expense are detailed in the following tables.

Evergy
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	(30.3	)	$	(16.7	)	$	(21.5	)	$	(14.5	)
State	1.5			—			1.9			0.4
Total	(28.8		)	(16.7		)	(19.6		)	(14.1		)
Deferred income taxes
Federal	70.6			58.8			86.0			101.7
State	23.3			14.3			(35.7		)	27.0
Total	93.9			73.1			50.3			128.7
Investment tax credit amortization	(1.0		)	(0.6		)	(2.4		)	(2.0		)
Income tax expense	$	64.1		$	55.8		$	28.3		$	112.6

Westar Energy
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	8.0		$	(16.7	)	$	18.9		$	(14.5	)
State	(9.2		)	—			(6.7		)	0.4
Total	(1.2		)	(16.7		)	12.2			(14.1		)
Deferred income taxes
Federal	12.3			58.8			15.4			101.7
State	12.0			14.3			(47.6		)	27.0
Total	24.3			73.1			(32.2		)	128.7
Investment tax credit amortization	(0.7		)	(0.6		)	(2.0		)	(2.0		)
Income tax expense (benefit)	$	22.4		$	55.8		$	(22.0	)	$	112.6

KCP&L
	Three Months Ended September 30						Year to Date September 30
	2018			2017			2018			2017
Current income taxes	(millions)
Federal	$	20.7		$	41.8		$	43.5		$	56.2
State	6.8			7.6			11.6			10.2
Total	27.5			49.4			55.1			66.4
Deferred income taxes
Federal	(1.9		)	10.3			(23.4		)	27.2
State	2.7			2.8			49.4			6.2
Total	0.8			13.1			26.0			33.4
Investment tax credit amortization	(0.3		)	(0.3		)	(0.8		)	(0.8		)
Income tax expense	$	28.0		$	62.2		$	80.3		$	99.0

Schedule of Effective Income Tax Rate Reconciliation

Effective income tax rates reflected in the financial statements and the reasons for their differences from the statutory federal rates are detailed in the following tables.

Evergy
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(2.4	)	(4.6	)	(2.4	)	(4.5	)
State income taxes	4.6		4.3		4.7		4.3
Flow through depreciation for plant-related differences	(1.5	)	2.3		(1.6	)	2.8
Federal tax credits	(7.5	)	(7.1	)	(7.5	)	(7.0	)
Non-controlling interest	(0.4	)	(0.5	)	(0.4	)	(0.8	)
AFUDC equity	(0.1	)	(0.2	)	(0.1	)	(0.2	)
Amortization of federal investment tax credits	(0.6	)	(0.6	)	(0.6	)	(0.6	)
State tax rate change	0.1		—		(9.5	)	—
Valuation allowance	—		—		0.4		—
Stock compensation	—		—		(0.5	)	(1.0	)
Officer compensation limitation	1.2		—		1.2		—
Other	0.8		(2.8	)	0.4		(0.7	)
Effective income tax rate	15.2	%	25.8	%	5.1	%	27.3	%

The decrease in Evergy's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of Westar Energy's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

Westar Energy
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(4.0	)	(4.6	)	(4.0	)	(4.5	)
State income taxes	1.1		4.3		3.3		4.3
Flow through depreciation for plant-related differences	1.5		2.3		0.3		2.8
Federal tax credits	(11.8	)	(7.1	)	(11.7	)	(7.0	)
Non-controlling interest	(0.6	)	(0.5	)	(0.7	)	(0.8	)
AFUDC equity	(0.1	)	(0.2	)	(0.1	)	(0.2	)
Amortization of federal investment tax credits	(0.8	)	(0.6	)	(0.8	)	(0.6	)
Changes in uncertain tax positions, net	0.1		—		0.1		—
State tax rate change	—		—		(17.7	)	—
Valuation allowance	—		—		0.6		—
Stock compensation	—		—		(0.9	)	(1.0	)
Officer compensation limitation	1.9		—		1.9		—
Other	2.9		(2.8	)	1.3		(0.7	)
Effective income tax rate	11.2	%	25.8	%	(7.4	)%	27.3	%

The decrease in Westar Energy's state tax rate change for year to date September 30, 2018, compared to the same period in 2017, is primarily due to the revaluation of Westar Energy's state deferred income tax assets and liabilities based on the Evergy composite tax rate as a result of the merger.

KCP&L
	Three Months Ended September 30				Year to Date September 30
	2018		2017		2018		2017
Federal statutory income tax rate	21.0	%	35.0	%	21.0	%	35.0	%
Effect of:
COLI policies	(0.2	)	(0.3	)	(0.2	)	(0.3	)
State income taxes	5.0		3.9		5.1		3.9
Flow through depreciation for plant-related differences	(4.9	)	0.1		(4.9	)	0.2
Federal tax credits	(1.9	)	(3.1	)	(1.8	)	(2.6	)
AFUDC equity	—		(0.7	)	(0.1	)	(0.7	)
Amortization of federal investment tax credits	(0.4	)	(0.4	)	(0.4	)	(0.4	)
State tax rate change	—		—		14.5		—
Valuation allowance	—		0.6		—		0.4
Stock compensation	—		0.1		—		0.2
Officer compensation limitation	0.7		—		0.5		—
Other	(0.4	)	0.1		(1.0	)	0.1
Effective income tax rate	18.9	%	35.3	%	32.7	%	35.8	%

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Organization and Basis of Presentation - Organization (Details) customer in Millions	9 Months Ended
	Sep. 30, 2018 customer subsidiary Rate MW
Summary Of Accounting Policies [Line Items]
Owned generating capacity | MW	12,300
Number of customers served | customer	1.6
Kansas Gas And Electric Company [Member] | Westar Energy Inc [Member]
Summary Of Accounting Policies [Line Items]
Number of active wholly owned subsidiaries | subsidiary	1
KCP&L Receivables Company [Member] | KCPL [Member]
Summary Of Accounting Policies [Line Items]
Number of active wholly owned subsidiaries | subsidiary	1
GMO Receivables Company [Member] | KCPL Greater Missouri Operations [Member]
Summary Of Accounting Policies [Line Items]
Number of active wholly owned subsidiaries | subsidiary	1
Transource Energy, LLC [Member] | GPE Transmission Holding Company, LLC [Member]
Summary Of Accounting Policies [Line Items]
Ownership percentage | Rate	13.50%
Transource Energy, LLC [Member] | AEP Transmission Holding Company, LLC [Member]
Summary Of Accounting Policies [Line Items]
Ownership interest | Rate	86.50%
Prairie Wind Transmission, LLC [Member] | Westar Energy Inc [Member]
Summary Of Accounting Policies [Line Items]
Ownership percentage | Rate	50.00%

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Organization and Basis of Presentation - Summary of Reclassifications (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in pension and post-retirement liability	$ (949.7)		$ (949.7)		$ (491.2)
Increase in other long-term liabilities	231.9		231.9		133.3
Amortization of deferred refueling outage			14.7	$ 12.1
Deferred income taxes, net	93.9	$ 73.1	50.3	128.7
Investment tax credit amortization	(1.0)	(0.6)	(2.4)	(2.0)
Net deferred income taxes and credits			47.8	127.0
Payments for asset retirement obligations			(15.9)	(1.9)
Other			(1.9)	(5.3)
Fuel inventory and supplies			44.6	15.5
Prepaid expenses and other current assets			(3.4)	55.5
Other current liabilities			38.9	(108.5)
Changes in other assets			26.0	22.9
Changes in other liabilities			33.9	5.5
Cash Flows from Operating Activities			1,191.6	742.7
Additions to property, plant and equipment			(698.3)	(564.6)
Other investing activities			(15.2)	(3.3)
Cash Flows from (used in) Investing Activities			574.8	(581.4)
Westar Energy Inc [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in pension and post-retirement liability	(465.2)		(465.2)		(491.2)
Increase in other long-term liabilities	127.8		127.8		133.3
Amortization of deferred refueling outage			10.5	12.1
Deferred income taxes, net	24.3	73.1	(32.2)	128.7
Investment tax credit amortization	(0.7)	(0.6)	(2.0)	(2.0)
Net deferred income taxes and credits			(34.2)	127.0
Payments for asset retirement obligations			(10.6)	(1.9)
Other			(1.9)	(5.3)
Fuel inventory and supplies			25.4	15.5
Prepaid expenses and other current assets			(7.0)	55.5
Other current liabilities			23.2	(108.5)
Changes in other assets			22.9	22.9
Changes in other liabilities			(26.7)	5.5
Cash Flows from Operating Activities			707.2	742.7
Additions to property, plant and equipment			(510.3)	(564.6)
Other investing activities			(8.1)	(3.3)
Cash Flows from (used in) Investing Activities			(523.0)	(581.4)
Westar Energy Inc [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in pension and post-retirement liability					50.2
Increase in other long-term liabilities					(50.2)
KCPL [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in pension and post-retirement liability	(522.3)		(522.3)		(512.2)
Increase in other long-term liabilities	80.7		80.7		$ 61.6
Amortization of deferred refueling outage			10.3	13.7
Deferred income taxes, net	0.8	13.1	26.0	33.4
Investment tax credit amortization	$ (0.3)	$ (0.3)	(0.8)	(0.8)
Net deferred income taxes and credits			25.2	32.6
Payments for asset retirement obligations			(9.9)	(14.9)
Other			2.7	6.3
Fuel inventory and supplies			13.2	3.6
Prepaid expenses and other current assets			(3.6)	8.9
Other current liabilities			8.5	9.9
Changes in other assets			28.3	52.6
Changes in other liabilities			79.0	7.3
Cash Flows from Operating Activities			504.5	526.6
Additions to property, plant and equipment			(310.6)	(317.1)
Other investing activities			3.4	0.8
Cash Flows from (used in) Investing Activities			$ (312.6)	(318.8)
KCPL [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Amortization of other				23.4
Amortization of deferred refueling outage				0.0
Deferred income taxes, net				33.4
Investment tax credit amortization				(0.8)
Net deferred income taxes and credits				0.0
Payments for asset retirement obligations				0.0
Other				(16.0)
Fuel inventory and supplies				0.0
Fuel inventories				10.8
Materials and supplies				(7.2)
Prepaid expenses and other current assets				0.0
Accrued interest				8.1
Other current liabilities				0.0
Changes in other assets				0.0
Changes in other liabilities				0.0
Deferred refueling outage costs				12.1
Pension and post-retirement benefit obligations				48.6
Fuel recovery mechanisms				7.6
Cash Flows from Operating Activities				120.0
Additions to property, plant and equipment				0.0
Utility capital expenditures				(295.1)
Allowance for borrowed funds used during construction				(4.2)
Other investing activities				(17.0)
Cash Flows from (used in) Investing Activities				(316.3)
KCPL [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Amortization of other				0.0
Amortization of deferred refueling outage				13.7
Deferred income taxes, net				0.0
Investment tax credit amortization				0.0
Net deferred income taxes and credits				32.6
Payments for asset retirement obligations				(14.9)
Other				6.3
Fuel inventory and supplies				3.6
Fuel inventories				0.0
Materials and supplies				0.0
Prepaid expenses and other current assets				8.9
Accrued interest				0.0
Other current liabilities				9.9
Changes in other assets				52.6
Changes in other liabilities				7.3
Deferred refueling outage costs				0.0
Pension and post-retirement benefit obligations				0.0
Fuel recovery mechanisms				0.0
Cash Flows from Operating Activities				120.0
Additions to property, plant and equipment				(317.1)
Utility capital expenditures				0.0
Allowance for borrowed funds used during construction				0.0
Other investing activities				0.8
Cash Flows from (used in) Investing Activities				$ (316.3)

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Organization and Basis of Presentation - Fuel Inventory and Supplies (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Inventory [Line Items]
Fuel inventory	$ 163.1	$ 94.1
Supplies	357.8	199.5
Fuel inventory and supplies	520.9	293.6
Westar Energy Inc [Member]
Inventory [Line Items]
Fuel inventory	84.9	94.1
Supplies	183.8	199.5
Fuel inventory and supplies	268.7	293.6
KCPL [Member]
Inventory [Line Items]
Fuel inventory	54.6	71.0
Supplies	129.2	126.0
Fuel inventory and supplies	$ 183.8	$ 197.0

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Organization and Basis of Presentation - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 18,836.0	$ 9,553.8
Electric Plant in Service [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	27,290.0	12,954.3
Property, plant and equipment, adjustment	740.6	739.0
Accumulated depreciation	(10,168.2)	(4,651.7)
Property, plant and equipment, net	17,862.4	9,041.6
Construction Work in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	723.5	434.9
Nuclear Fuel [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	109.1	71.4
Plant to be Retired [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	141.0	5.9
Westar Energy Inc [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	9,637.5	9,553.8
Westar Energy Inc [Member] | Electric Plant in Service [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,236.1	12,954.3
Property, plant and equipment, adjustment	740.6	739.0
Accumulated depreciation	(4,838.9)	(4,651.7)
Property, plant and equipment, net	9,137.8	9,041.6
Westar Energy Inc [Member] | Construction Work in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	443.6	434.9
Westar Energy Inc [Member] | Nuclear Fuel [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	54.1	71.4
Westar Energy Inc [Member] | Plant to be Retired [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	2.0	5.9
KCPL [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	6,660.3	6,565.6
KCPL [Member] | Electric Plant in Service [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,594.2	10,213.2
Property, plant and equipment, adjustment	0.0	0.0
Accumulated depreciation	(4,172.3)	(4,070.3)
Property, plant and equipment, net	6,421.9	6,142.9
KCPL [Member] | Construction Work in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	183.4	350.3
KCPL [Member] | Nuclear Fuel [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	55.0	72.4
KCPL [Member] | Plant to be Retired [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 0.0	$ 0.0

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Organization and Basis of Presentation - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income
Net income	$ 357.6	$ 160.7	$ 524.9	$ 300.2
Less: Net income attributable to noncontrolling interests	2.6	2.4	7.6	10.2
NET INCOME	355.0	158.3	517.3	290.0
Less: net income allocated to RSUs	0.2	0.3	0.4	0.5
Net income allocated to common stock	$ 354.8	$ 158.0	$ 516.9	$ 289.5
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic (in shares)	268.6	142.5	197.9	142.5
Add: effect of dilutive securities (in shares)	0.2	0.0	0.1	0.0
Weighted average equivalent common shares outstanding - diluted (in shares)	268.8	142.5	198.0	142.5
Basic and Diluted EPS
Basic and Diluted EPS (in dollars per share)	$ 1.32	$ 1.11	$ 2.61	$ 2.03

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Organization and Basis of Presentation - Antidilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	0	0

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Organization and Basis of Presentation Organization and Basis of Presentation - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions		9 Months Ended
	Nov. 07, 2018	Sep. 30, 2018	Sep. 30, 2017
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)		$ 1.26	$ 1.20
Subsequent Event [Member]
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)	$ 0.475
Westar Energy Inc [Member]
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)			$ 1.20
Westar Energy Inc [Member] | Subsequent Event [Member]
Dividends Payable [Line Items]
Dividends Payable	$ 70.0

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Organization and Basis of Presentation - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash paid for (received from):
Interest, net of amounts capitalized	$ 148.7	$ 109.0
Income taxes, net of refunds	0.6	(12.6)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(24.8)	112.5
Deconsolidation of property, plant and equipment of VIE	0.0	(72.9)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.4	4.9
Non-cash financing, deconsolidation of VIE	0.0	(83.1)
Assets acquired through capital leases	0.1	4.6
Variable Interest Entities [Member]
Cash paid for (received from):
Interest, net of amounts capitalized	2.3	3.1
Westar Energy Inc [Member]
Cash paid for (received from):
Interest, net of amounts capitalized	110.5	109.0
Income taxes, net of refunds	0.0	(12.6)
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	(42.0)	112.5
Deconsolidation of property, plant and equipment of VIE	0.0	(72.9)
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.0	4.9
Non-cash financing, deconsolidation of VIE	0.0	(83.1)
Assets acquired through capital leases	0.1	4.6
Westar Energy Inc [Member] | Variable Interest Entities [Member]
Cash paid for (received from):
Interest, net of amounts capitalized	2.3	3.1
KCPL [Member]
Cash paid for (received from):
Interest, net of amounts capitalized	87.6	88.6
Income taxes, net of refunds	28.4	4.9
Non-cash investing transactions:
Property, plant and equipment additions (reductions)	$ 15.2	$ 15.5

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Organization and Basis of Presentation - Schedule of Retrospective Adjustments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense	$ 330.4	$ 140.6	$ 754.2	$ 415.6
Total operating expenses	1,049.4	529.4	2,292.6	1,419.7
Income from operations	533.1	264.9	783.5	556.5
Other expense	(30.8)	(11.5)	(55.2)	(29.6)
Total other income (expense), net	(24.3)	(6.6)	(43.7)	(20.4)
As Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense		145.5		430.6
Total operating expenses		534.3		1,434.7
Income from operations		260.0		541.5
Other expense		(6.6)		(14.6)
Total other income (expense), net		(1.7)		(5.4)
Accounting Standards Update 2017-07 [Member] | Effect of Change [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense		(4.9)		(15.0)
Total operating expenses		(4.9)		(15.0)
Income from operations		4.9		15.0
Other expense		(4.9)		(15.0)
Total other income (expense), net		(4.9)		(15.0)
Westar Energy Inc [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense	141.7	140.6	491.4	415.6
Total operating expenses	507.9	529.4	1,559.4	1,419.7
Income from operations	256.9	264.9	456.5	556.5
Other expense	(15.2)	(11.5)	(36.1)	(29.6)
Total other income (expense), net	(13.9)	(6.6)	(31.6)	(20.4)
Westar Energy Inc [Member] | As Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense		145.5		430.6
Total operating expenses		534.3		1,434.7
Income from operations		260.0		541.5
Other expense		(6.6)		(14.6)
Total other income (expense), net		(1.7)		(5.4)
Westar Energy Inc [Member] | Accounting Standards Update 2017-07 [Member] | Effect of Change [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense		(4.9)		(15.0)
Total operating expenses		(4.9)		(15.0)
Income from operations		4.9		15.0
Other expense		(4.9)		(15.0)
Total other income (expense), net		(4.9)		(15.0)
KCPL [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense	127.3	114.3	354.5	350.7
Total operating expenses	370.2	375.9	1,043.8	1,058.1
Income from operations	189.4	219.8	365.1	416.2
Other expense	(9.0)	(11.9)	(22.9)	(40.7)
Total other income (expense), net	$ (8.1)	(9.2)	$ (19.1)	(33.8)
KCPL [Member] | As Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense		124.2		385.0
Total operating expenses		385.8		1,092.4
Income from operations		209.9		381.9
Other expense		(2.0)		(6.4)
Total other income (expense), net		0.7		0.5
KCPL [Member] | Accounting Standards Update 2017-07 [Member] | Effect of Change [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating and maintenance expense		(9.9)		(34.3)
Total operating expenses		(9.9)		(34.3)
Income from operations		9.9		34.3
Other expense		(9.9)		(34.3)
Total other income (expense), net		$ (9.9)		$ (34.3)

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Organization and Basis of Presentation - New Accounting Standards (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash flows provided by (used in) operating activities			$ 1,191.6	$ 742.7
Cash flows provided by (used in) investing activities			574.8	(581.4)
Cash, cash equivalents and restricted cash	$ 679.8	$ 3.5	679.8	3.5	$ 3.5	$ 3.2
Operating revenues	(1,582.5)	(794.3)	(3,076.1)	(1,976.2)
Taxes other than income tax	(83.0)	(41.8)	(183.5)	(126.4)
Accounting Standards Update 2016-15 - Corporate Owned Life Insurance, Premiums [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash flows provided by (used in) operating activities				2.3
Cash flows provided by (used in) investing activities				(2.3)
Accounting Standards Update 2016-15 - Corporate Owned Life Insurance, Settlements [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash flows provided by (used in) operating activities				(1.9)
Cash flows provided by (used in) investing activities				1.9
Accounting Standards Update 2016-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash, cash equivalents and restricted cash		0.1		0.1		0.1
Westar Energy Inc [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash flows provided by (used in) operating activities			707.2	742.7
Cash flows provided by (used in) investing activities			(523.0)	(581.4)
Cash, cash equivalents and restricted cash	3.4	3.5	3.4	3.5	$ 3.5	3.2
Operating revenues	(764.8)	(794.3)	(2,015.9)	(1,976.2)
Taxes other than income tax	(42.2)	(41.8)	(128.8)	(126.4)
Westar Energy Inc [Member] | Accounting Standards Update 2016-15 - Corporate Owned Life Insurance, Premiums [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash flows provided by (used in) operating activities				2.3
Cash flows provided by (used in) investing activities				(2.3)
Westar Energy Inc [Member] | Accounting Standards Update 2016-15 - Corporate Owned Life Insurance, Settlements [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash flows provided by (used in) operating activities				(1.9)
Cash flows provided by (used in) investing activities				1.9
Westar Energy Inc [Member] | Accounting Standards Update 2016-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash, cash equivalents and restricted cash		$ 0.1		$ 0.1		$ 0.1
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating revenues	22.1		59.7
Taxes other than income tax	$ 22.1		$ 59.7

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Merger of Great Plains Energy and Westar Energy - Narrative (Details) $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 04, 2018	May 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)
Acquisition-related Costs [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
Merger-related costs			$ 5.2	$ 6.0	$ 73.4	$ 9.4
Merger Settlement Agreement [Member] | Kansas Corporation Commission [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
One-time bill credits		$ 30.6
Additional bill credits		46.0
Additional bill credits, annual amount		11.5
Merger-related savings on current rate cases		$ 30.0
Base rate moratorium period		5 years
Return on equity refund		50.00%
Charitable contributions period		5 years
Merger transaction costs, recovery amount		$ 30.9
Merger transaction costs, recovery period		10 years
Merger Settlement Agreement [Member] | Missouri Public Service Commission [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
One-time bill credits		$ 29.1
Charitable contributions period		5 years
Merger transaction costs, recovery amount		$ 16.9
Merger transaction costs, recovery period		10 years
One-time bill credits, period		120 days
Support to promote low-income weatherization, amount		$ 3.0
Support to promote low-income weatherization, period		10 years
Westar Energy Inc [Member] | Merger Settlement Agreement [Member] | Kansas Corporation Commission [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
One-time bill credits		$ 23.1
Additional bill credits, annual amount		8.7
Merger-related savings on current rate cases		22.5
Merger transaction costs, recovery amount		23.2
KCPL [Member] | Merger Settlement Agreement [Member] | Kansas Corporation Commission [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
One-time bill credits		7.5
Additional bill credits, annual amount		2.8
Merger-related savings on current rate cases		7.5
Merger transaction costs, recovery amount		7.7
KCPL [Member] | Merger Settlement Agreement [Member] | Missouri Public Service Commission [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
One-time bill credits		14.9
Merger transaction costs, recovery amount		9.7
KCPL Greater Missouri Operations [Member] | Merger Settlement Agreement [Member] | Missouri Public Service Commission [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
One-time bill credits		14.2
Merger transaction costs, recovery amount		$ 7.2
Westar Energy Inc [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
Conversion ratio	1
Great Plains Energy [Member]
Anticipated Merger With Westar Energy, Inc. [Line Items]
Earnings or Loss of Acquiree since Acquisition Date, Actual			178.8		239.0
Conversion ratio	0.5981
Revenue of acquiree since acquisition			817.6		1,060.2
Merger-related costs			$ 10.3	$ 7.9	$ 134.3	$ 8.9

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Merger of Great Plains Energy and Westar Energy - Schedule of Pre-tax Costs and Deferrals (Details) - Great Plains Energy [Member] $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Business Acquisition [Line Items]
One-time bill credits	$ (59.7)
Annual bill credits	(7.6)
Total impact to operating revenues	(67.3)
Charitable contributions and community support	24.7
Voluntary severance and accelerated equity compensation	40.7
Other transaction and transition costs	47.0
Reallocation and deferral of merger transition costs	(47.8)
Total impact to operating and maintenance expense	64.6
Total	(131.9)
Westar Energy Inc [Member]
Business Acquisition [Line Items]
One-time bill credits	(23.1)
Annual bill credits	(5.8)
Total impact to operating revenues	(28.9)
Charitable contributions and community support	0.0
Voluntary severance and accelerated equity compensation	40.7
Other transaction and transition costs	20.4
Reallocation and deferral of merger transition costs	(13.3)
Total impact to operating and maintenance expense	47.8
Total	(76.7)
KCPL [Member]
Business Acquisition [Line Items]
One-time bill credits	(22.4)
Annual bill credits	(1.9)
Total impact to operating revenues	(24.3)
Charitable contributions and community support	0.0
Voluntary severance and accelerated equity compensation	0.0
Other transaction and transition costs	1.7
Reallocation and deferral of merger transition costs	(23.9)
Total impact to operating and maintenance expense	(22.2)
Total	$ (2.1)

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Merger of Great Plains Energy and Westar Energy - Purchase Price Allocation (Details) $ / shares in Units, $ in Millions	Jun. 04, 2018 USD ($) $ / shares shares
Business Acquisition [Line Items]
Common stock outstanding (in shares)	215,800,074
Awards outstanding (in shares)	(204,825)
Great Plains Energy shares to be converted to Evergy shares (in shares)	215,595,249
Great Plains Energy [Member]
Business Acquisition [Line Items]
Exchange ratio	0.5981
Number of shares issued (in shares)	128,947,518
Closing price (in dollars per share) | $ / shares	$ 54.00
Total purchase price | $	$ 6,975.7
Common Stock [Member] | Great Plains Energy [Member]
Business Acquisition [Line Items]
Fair value of shares issued | $	6,963.2
Stock Compensation Plan [Member] | Great Plains Energy [Member]
Business Acquisition [Line Items]
Fair value of shares issued | $	$ 12.5

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Merger of Great Plains Energy and Westar Energy - Schedule Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Sep. 30, 2018	Jun. 04, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 2,333.5		$ 0.0
Great Plains Energy [Member]
Business Acquisition [Line Items]
Current assets		$ 2,151.7
Property, plant and equipment, net		9,179.7
Goodwill		2,333.5
Other long-term assets, excluding goodwill		1,235.9
Total assets		14,900.8
Current liabilities		1,673.9
Long-term liabilities, excluding long-term debt		2,892.6
Long-term debt, net		3,358.6
Total liabilities		7,925.1
Total purchase price		$ 6,975.7

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Merger of Great Plains Energy and Westar Energy - Unaudited Pro Forma Financial Information (Details) - Great Plains Energy [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Operating revenues	$ 1,582.5	$ 1,651.5	$ 4,134.8	$ 4,086.7
Net income attributable to Evergy, Inc.	$ 360.2	$ 321.8	$ 694.5	$ 543.3
Basic earnings per common share (in dollars per share)	$ 1.34	$ 1.19	$ 2.56	$ 2.00
Diluted earnings per common share (in dollars per share)	$ 1.34	$ 1.19	$ 2.55	$ 2.00

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Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,567.0		$ 3,051.4
Other	15.5		24.7
Operating revenues	1,582.5	$ 794.3	3,076.1	$ 1,976.2
Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	761.3		2,011.8
Other	3.5		4.1
Operating revenues	764.8	794.3	2,015.9	1,976.2
KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	550.8		1,360.2
Other	8.8		48.7
Operating revenues	559.6	$ 595.7	1,408.9	$ 1,474.3
Electric Utility Customer Class Residential [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	647.1		1,169.4
Electric Utility Customer Class Residential [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	270.5		671.9
Electric Utility Customer Class Residential [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	243.5		585.4
Electric Utility Customer Class Commercial [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	530.5		945.0
Electric Utility Customer Class Commercial [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	217.4		542.8
Electric Utility Customer Class Commercial [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	231.1		609.2
Electric Utility Customer Class Industrial [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	173.4		375.5
Electric Utility Customer Class Industrial [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	111.9		297.2
Electric Utility Customer Class Industrial [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	39.1		105.4
Electric Utility Customer Class Other Retail [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	10.9		21.5
Electric Utility Customer Class Other Retail [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	5.4		15.3
Electric Utility Customer Class Other Retail [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2.7		7.7
Electric Utility Customer Class Total Electric Retail [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,361.9		2,511.4
Electric Utility Customer Class Total Electric Retail [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	605.2		1,527.2
Electric Utility Customer Class Total Electric Retail [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	516.4		1,307.7
Electric Utility Customer Class Wholesale [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	118.5		302.4
Electric Utility Customer Class Wholesale [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	82.4		263.7
Electric Utility Customer Class Wholesale [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	29.9		38.5
Electric Utility Customer Class Transmission [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	80.6		227.6
Electric Utility Customer Class Transmission [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	72.2		216.3
Electric Utility Customer Class Transmission [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3.8		11.0
Electric Utility Customer Class Industrial Steam [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	6.0		10.0
Electric Utility Customer Class Industrial Steam [Member] | Westar Energy Inc [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1.5		4.6
Electric Utility Customer Class Industrial Steam [Member] | KCPL [Member]
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 0.7		$ 3.0

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Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 82.4	$ 55.4
Total	496.5	290.7
Westar Energy Inc [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	60.7	55.4
Total	347.5	290.7
KCPL [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	14.5	39.3
Total	102.9	106.3
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	(8.7)	(6.7)
Trade Accounts Receivable [Member] | Westar Energy Inc [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	(3.9)	(6.7)
Trade Accounts Receivable [Member] | KCPL [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	(3.5)	(2.2)
Trade Accounts Receivable [Member] | Billed Revenues [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	231.7	165.4
Trade Accounts Receivable [Member] | Billed Revenues [Member] | Westar Energy Inc [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	194.0	165.4
Trade Accounts Receivable [Member] | Billed Revenues [Member] | KCPL [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	25.3	1.6
Trade Accounts Receivable [Member] | Unbilled Revenues [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	191.1	76.6
Trade Accounts Receivable [Member] | Unbilled Revenues [Member] | Westar Energy Inc [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	96.7	76.6
Trade Accounts Receivable [Member] | Unbilled Revenues [Member] | KCPL [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	$ 66.6	$ 67.6

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Receivables - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Other receivables, contracts with customers	$ 57.7
Sale Of Accounts Receivable - KCPL and GMO
Accounts receivable pledged as collateral	195.0	$ 0.0
Collateralized note payable	195.0	0.0
Westar Energy Inc [Member]
Other receivables, contracts with customers	52.8
KCPL [Member]
Other receivables, contracts with customers	1.0
Sale Of Accounts Receivable - KCPL and GMO
Accounts receivable pledged as collateral	130.0	130.0
Collateralized note payable	130.0	$ 130.0
Maximum amount of outstanding principal under receivables agreement	130.0
KCPL Greater Missouri Operations [Member]
Sale Of Accounts Receivable - KCPL and GMO
Maximum amount of outstanding principal under receivables agreement from mid-November to mid-June	50.0
Maximum amount of outstanding principal under receivables agreement from mid-June to mid-November	$ 65.0

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Receivables - Summary of Bad Debt Expense (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment losses recognized on receivables	$ 4.5	$ 2.0	$ 10.6	$ 5.4
Westar Energy Inc [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment losses recognized on receivables	1.1	2.0	6.2	5.4
KCPL [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment losses recognized on receivables	$ 3.9	$ 2.8	$ 7.5	$ 6.0

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Rate Matters and Regulation (Details) - USD ($) $ in Millions	1 Months Ended						9 Months Ended
	Oct. 31, 2018	Sep. 30, 2018	May 31, 2018	Mar. 31, 2018	Feb. 28, 2018	Jan. 31, 2018	Sep. 30, 2018
Transmission Delivery Charge [Member] | Westar Energy Inc [Member] | Kansas Corporation Commission [Member]
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease), approved				$ 31.5
2018 Rate Case Proceedings [Member] | Westar Energy Inc [Member] | Kansas Corporation Commission [Member]
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease), requested					$ (2.0)
Revised annual revenue increase, requested					$ 54.0
Return on equity, requested					9.85%
Return on equity, approved		9.30%
Rate-making equity ratio, requested					51.60%
Rate-making equity ratio, approved		51.46%
Annual revenue increase (decrease) related to rebasing, approved		$ 16.0
Increase (decrease) in depreciation expense, approved		46.0
Recovery of wholesale contract, approved		41.0
One-time bill credit, approved		50.0
Annual revenue increase (decrease), approved, not including rebasing		(66.0)
2018 Rate Case Proceedings [Member] | KCPL Greater Missouri Operations [Member] | Missouri Public Service Commission [Member]
Regulatory Proceedings [Line Items]
Return on equity, requested						9.85%
Rate-making equity ratio, requested						54.40%
Annual revenue increase (decrease) related to rebasing, requested						$ 21.7
Annual revenue increase (decrease), requested, not including rebasing						$ (2.4)
2018 Rate Case Proceedings [Member] | KCPL [Member] | Missouri Public Service Commission [Member]
Regulatory Proceedings [Line Items]
Return on equity, requested						9.85%
Rate-making equity ratio, requested						50.03%
Annual revenue increase (decrease) related to rebasing, requested						$ 7.5
Annual revenue increase (decrease), requested, not including rebasing						8.9
2018 Rate Case Proceedings [Member] | KCPL [Member] | Kansas Corporation Commission [Member]
Regulatory Proceedings [Line Items]
Return on equity, requested			9.85%
Rate-making equity ratio, requested			49.80%
Annual revenue increase (decrease) related to rebasing, requested			$ 6.7
Annual revenue increase (decrease), requested, not including rebasing			$ 26.2
FERC Proceedings [Member] | Westar Energy Inc [Member] | Federal Energy Regulatory Commission [Member]
Regulatory Proceedings [Line Items]
Regulatory liability		$ 5.9					$ 5.9
Annual transmissions revenue estimated amount of increase (decrease) over prior year						$ 25.5	$ 2.3
Subsequent Event [Member] | Transmission Delivery Charge [Member] | Westar Energy Inc [Member] | Kansas Corporation Commission [Member]
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease), approved	$ (20.0)
Subsequent Event [Member] | 2018 Rate Case Proceedings [Member] | KCPL Greater Missouri Operations [Member] | Missouri Public Service Commission [Member]
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease), approved	(24.0)
One-time bill credit, approved	29.3
Subsequent Event [Member] | 2018 Rate Case Proceedings [Member] | KCPL [Member] | Missouri Public Service Commission [Member]
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease), approved	(21.1)
One-time bill credit, approved	38.7
Subsequent Event [Member] | 2018 Rate Case Proceedings [Member] | KCPL [Member] | Kansas Corporation Commission [Member]
Regulatory Proceedings [Line Items]
One-time bill credit, requested	(36.9)
Public Utilities, Requested Rate Increase (Decrease) Following Stipulation, Amount	$ (10.7)
Public Utilities, Requested Return on Equity Following Stipulation	9.30%
Public Utilities, Requested Rate-Making Equity Ratio Following Stipulation	49.09%
Subsequent Event [Member] | FERC 2019 TFR Proceeding [Member] | Westar Energy Inc [Member] | Federal Energy Regulatory Commission [Member]
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of increase (decrease) over prior year	$ (11.2)

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Asset Retirement Obligations (Details) - USD ($) $ in Millions	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2018	Sep. 30, 2018
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance, January 1	$ 405.1	$ 405.1	$ 324.0
Liabilities assumed upon merger with Great Plains Energy		412.2	0.0
Liabilities incurred during the year		7.4	13.5
Revision in timing and/or estimates	(127.0)	(138.6)	66.8
Settlements		(15.9)	(16.0)
Accretion		22.1	16.8
Ending balance		692.3	405.1
Less: current portion		(69.6)	(25.1)
Total noncurrent asset retirement obligation		622.7	380.0
Wolf Creek [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Jointly owned utility plant, proportionate ownership share				94.00%
Westar Energy Inc [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance, January 1	405.1	405.1	324.0
Liabilities assumed upon merger with Great Plains Energy		0.0	0.0
Liabilities incurred during the year		7.4	13.5
Revision in timing and/or estimates	(127.0)	(133.0)	66.8
Settlements		(10.6)	(16.0)
Accretion		14.0	16.8
Ending balance		282.9	405.1
Less: current portion		(25.1)	(25.1)
Total noncurrent asset retirement obligation		257.8	380.0
Westar Energy Inc [Member] | Wolf Creek [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Jointly owned utility plant, proportionate ownership share				47.00%	47.00%
KCPL [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance, January 1	$ 266.3	266.3	278.0
Liabilities assumed upon merger with Great Plains Energy		0.0	0.0
Liabilities incurred during the year		0.0	0.0
Revision in timing and/or estimates		(5.7)	0.3
Settlements		(9.9)	(25.5)
Accretion		12.6	13.5
Ending balance		263.3	266.3
Less: current portion		(40.6)	(34.9)
Total noncurrent asset retirement obligation		$ 222.7	$ 231.4
KCPL [Member] | Wolf Creek [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Jointly owned utility plant, proportionate ownership share				47.00%

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Pension Plans and Other Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2018
Pension Plans, Defined Benefit [Member]
Components of net periodic benefit costs [Abstract]
Service cost	$ 20.2	$ 7.2	$ 40.4	$ 21.5
Interest cost	26.3	13.1	56.2	39.3
Expected return on plan assets	(27.0)	(13.4)	(59.3)	(40.2)
Prior service cost	0.3	0.1	0.6	0.5
Recognized net actuarial (gain)/loss	8.1	6.7	24.4	20.2
Net periodic benefit costs before regulatory adjustment	27.9	13.7	62.3	41.3
Regulatory adjustment	2.6	3.6	8.4	10.6
Net periodic benefit costs	30.5	17.3	70.7	51.9
Contributions by employer			53.1
Contributions by employer, remainder of fiscal year	66.3		66.3
Pension Plans, Defined Benefit [Member] | Westar Energy Inc [Member]
Components of net periodic benefit costs [Abstract]
Service cost	8.0	7.2	24.1	21.5
Interest cost	12.7	13.1	38.1	39.3
Expected return on plan assets	(13.9)	(13.4)	(41.9)	(40.2)
Prior service cost	0.2	0.1	0.5	0.5
Recognized net actuarial (gain)/loss	8.1	6.7	24.4	20.2
Net periodic benefit costs before regulatory adjustment	15.1	13.7	45.2	41.3
Regulatory adjustment	2.8	3.6	8.4	10.6
Net periodic benefit costs	17.9	17.3	53.6	51.9
Contributions by employer			43.1
Contributions by employer, remainder of fiscal year	4.9		4.9
Pension Plans, Defined Benefit [Member] | KCPL [Member]
Components of net periodic benefit costs [Abstract]
Service cost	9.1	8.1	27.4	24.4
Interest cost	9.4	9.8	28.3	29.4
Expected return on plan assets	(10.6)	(9.5)	(31.7)	(28.6)
Prior service cost	0.2	0.2	0.4	0.4
Recognized net actuarial (gain)/loss	8.4	8.9	25.1	26.7
Net periodic benefit costs before regulatory adjustment	16.5	17.5	49.5	52.3
Regulatory adjustment	0.7	0.2	2.1	4.3
Net periodic benefit costs	17.2	17.7	51.6	56.6
Contributions by employer			23.7
Contributions by employer, remainder of fiscal year	61.4		61.4
Other Postretirement Benefit Plans, Defined Benefit [Member]
Components of net periodic benefit costs [Abstract]
Service cost	0.7	0.3	1.5	0.9
Interest cost	2.5	1.4	5.4	4.2
Expected return on plan assets	(2.5)	(1.8)	(6.2)	(5.2)
Prior service cost	0.1	0.1	0.3	0.3
Recognized net actuarial (gain)/loss	(0.1)	(0.2)	(0.4)	(0.6)
Net periodic benefit costs before regulatory adjustment	0.7	(0.2)	0.6	(0.4)
Regulatory adjustment	(0.4)	(0.4)	(1.3)	(1.4)
Net periodic benefit costs	0.3	(0.6)	(0.7)	(1.8)
Contributions by employer, remainder of fiscal year	4.6		4.6
Other Postretirement Benefit Plans, Defined Benefit [Member] | Westar Energy Inc [Member]
Components of net periodic benefit costs [Abstract]
Service cost	0.4	0.3	1.0	0.9
Interest cost	1.2	1.4	3.7	4.2
Expected return on plan assets	(1.8)	(1.8)	(5.2)	(5.2)
Prior service cost	0.1	0.1	0.3	0.3
Recognized net actuarial (gain)/loss	(0.1)	(0.2)	(0.4)	(0.6)
Net periodic benefit costs before regulatory adjustment	(0.2)	(0.2)	(0.6)	(0.4)
Regulatory adjustment	(0.4)	(0.4)	(1.3)	(1.4)
Net periodic benefit costs	(0.6)	(0.6)	(1.9)	(1.8)
Other Postretirement Benefit Plans, Defined Benefit [Member] | KCPL [Member]
Components of net periodic benefit costs [Abstract]
Service cost	0.4	0.4	1.1	1.1
Interest cost	0.8	0.9	2.5	2.8
Expected return on plan assets	(0.4)	(0.4)	(1.4)	(1.3)
Prior service cost	0.0	0.0	0.0	0.0
Recognized net actuarial (gain)/loss	0.0	(0.1)	(0.1)	(0.3)
Net periodic benefit costs before regulatory adjustment	0.8	0.8	2.1	2.3
Regulatory adjustment	0.1	(0.1)	(0.2)	0.9
Net periodic benefit costs	0.9	$ 0.7	1.9	$ 3.2
Contributions by employer, remainder of fiscal year	$ 4.6		$ 4.6
Wolf Creek [Member]
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share					94.00%
Wolf Creek [Member] | Westar Energy Inc [Member]
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share					47.00%	47.00%
Wolf Creek [Member] | KCPL [Member]
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share					47.00%

XML

Equity Compensation (Details) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
	Jun. 04, 2018 USD ($) shares	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2017 USD ($) shares	Sep. 30, 2018 USD ($) $ / shares Rate shares	Sep. 30, 2017 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost | $				$ 14.6
Equity compensation expense | $		$ 4.3	$ 2.1	26.0	$ 6.7
Income tax (expense) benefit | $		$ (1.5)	$ 0.8	$ 1.9	$ 2.6
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Ending balance (in shares)	204,825
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)				255,964
Granted (in shares)		0	0	222,465
Converted Great Plains Energy award upon merger (in shares)				82,331
Vested (in shares)		0		(342,599)
Forfeited (in shares)				(905)
Ending balance (in shares)		217,256		217,256
Weighted average beginning balance (in dollars per share) | $ / shares				$ 46.09
Weighted average granted (in dollars per share) | $ / shares				52.16	$ 53.25
Weighted average converted (in dollars per share) | $ / shares				53.77
Weighted average vested (in dollars per share) | $ / shares				46.81
Weighted average forfeited (in dollars per share) | $ / shares				50.73
Weighted average ending balance (in dollars per share) | $ / shares		$ 54.07		$ 54.07
Total unrecognized compensation expense | $		$ 9.5		$ 9.5
Total fair value of shares vested | $			$ 0.2	$ 16.0	$ 3.8
Remaining weighted-average contractual term (in years)				1 year 8 months 15 days
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility, minimum (in hundredths) | Rate				16.60%
Expected volatility, maximum (in hundredths) | Rate				18.50%
Expected dividend yield (in hundredths) | Rate				2.96%
Risk-free interest rate, minimum (in hundredths) | Rate				1.80%
Risk-free interest rate, maximum (in hundredths) | Rate				2.60%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)				0
Granted (in shares)		0	0
Converted Great Plains Energy award upon merger (in shares)				351,708
Forfeited (in shares)				(3,212)
Ending balance (in shares)		348,496		348,496
Weighted average beginning balance (in dollars per share) | $ / shares				$ 0.00
Weighted average granted (in dollars per share) | $ / shares				63.79
Weighted average converted (in dollars per share) | $ / shares				63.79
Weighted average forfeited (in dollars per share) | $ / shares				63.44
Weighted average ending balance (in dollars per share) | $ / shares		$ 63.80		$ 63.80
Total unrecognized compensation expense | $		$ 10.6		$ 10.6
Remaining weighted-average contractual term (in years)				1 year 3 months 20 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)				0
Granted (in shares)		0	0
Converted Great Plains Energy award upon merger (in shares)				122,505
Vested (in shares)				(4,222)
Forfeited (in shares)				(1,070)
Ending balance (in shares)		117,213		117,213
Weighted average beginning balance (in dollars per share) | $ / shares				$ 0.00
Weighted average granted (in dollars per share) | $ / shares				54.05
Weighted average converted (in dollars per share) | $ / shares				54.05
Weighted average vested (in dollars per share) | $ / shares				54.50
Weighted average forfeited (in dollars per share) | $ / shares				54.04
Weighted average ending balance (in dollars per share) | $ / shares		$ 54.03		$ 54.03
Total unrecognized compensation expense | $		$ 3.1		$ 3.1
Total fair value of shares vested | $		0.2		$ 0.2
Remaining weighted-average contractual term (in years)				1 year 4 months 26 days
Westar Energy Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost | $				$ 14.6
Equity compensation expense | $		2.0	$ 2.1	22.6	6.7
Income tax (expense) benefit | $		(1.0)	0.8	2.1	2.6
KCPL [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity compensation expense | $		1.6	1.2	4.8	2.9
Income tax (expense) benefit | $		$ (0.7)	$ 0.4	$ (0.1)	$ 1.2
Great Plains Energy [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exchange ratio	0.5981
Stock Compensation Plan [Member] | Great Plains Energy [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares issued | $	$ 12.5

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Short-term Borrowings and Short-term Bank Lines of Credit (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 1,800.0
Line of Credit Facility, Current Borrowing Capacity	2,500.0
Commercial Paper [Member]
Short-term Debt [Line Items]
Long-term Line of Credit	675.9
Standby Letters of Credit [Member]
Short-term Debt [Line Items]
Amount of letters of credit outstanding	24.1
Master Credit Facility [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,500.0
Long-term Line of Credit	$ 0.0
Credit facility expiration date	Dec. 31, 2023
Evergy [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 449.0	$ 691.8
Line of Credit Facility, Interest Rate at Period End	0.00%	1.83%
Line of Credit Facility, Current Borrowing Capacity	$ 450.0	$ 979.3
Evergy [Member] | Commercial Paper [Member]
Short-term Debt [Line Items]
Long-term Line of Credit		275.7
Evergy [Member] | Standby Letters of Credit [Member]
Short-term Debt [Line Items]
Amount of letters of credit outstanding	1.0	11.8
Evergy [Member] | Master Credit Facility [Member]
Short-term Debt [Line Items]
Debt Instrument, Debt Default, Threshold	100.0
Long-term Line of Credit	$ 0.0	0.0
Line of Credit Facility, Covenant Terms	A default by any borrower under the facility or one of their significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default under the facility. Under the terms of this facility, each of Evergy, Westar Energy, KCP&L and GMO is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times.
Line of Credit Facility, Covenant Compliance	in compliance
Evergy [Member] | Master Credit Facility [Member] | Maximum [Member]
Short-term Debt [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
KCPL [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 388.1	$ 429.8
Line of Credit Facility, Interest Rate at Period End	2.50%	1.95%
Line of Credit Facility, Current Borrowing Capacity	$ 600.0	$ 600.0
KCPL [Member] | Commercial Paper [Member]
Short-term Debt [Line Items]
Long-term Line of Credit	209.2	167.5
KCPL [Member] | Standby Letters of Credit [Member]
Short-term Debt [Line Items]
Amount of letters of credit outstanding	2.7	2.7
KCPL [Member] | Master Credit Facility [Member]
Short-term Debt [Line Items]
Debt Instrument, Debt Default, Threshold	100.0
Long-term Line of Credit	$ 0.0	0.0
Line of Credit Facility, Covenant Terms	A default by any borrower under the facility or one of their significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default under the facility. Under the terms of this facility, each of Evergy, Westar Energy, KCP&L and GMO is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times.
Line of Credit Facility, Covenant Compliance	in compliance
KCPL [Member] | Master Credit Facility [Member] | Maximum [Member]
Short-term Debt [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
Westar Energy Inc [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 655.4	$ 691.8
Line of Credit Facility, Interest Rate at Period End	2.42%	1.83%
Line of Credit Facility, Current Borrowing Capacity	$ 1,000.0	$ 979.3
Westar Energy Inc [Member] | Commercial Paper [Member]
Short-term Debt [Line Items]
Long-term Line of Credit	326.3	275.7
Westar Energy Inc [Member] | Standby Letters of Credit [Member]
Short-term Debt [Line Items]
Amount of letters of credit outstanding	18.3	11.8
Westar Energy Inc [Member] | Master Credit Facility [Member]
Short-term Debt [Line Items]
Debt Instrument, Debt Default, Threshold	100.0
Long-term Line of Credit	$ 0.0	0.0
Line of Credit Facility, Covenant Terms	A default by any borrower under the facility or one of their significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default under the facility. Under the terms of this facility, each of Evergy, Westar Energy, KCP&L and GMO is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times.
Line of Credit Facility, Covenant Compliance	in compliance
Westar Energy Inc [Member] | Master Credit Facility [Member] | Maximum [Member]
Short-term Debt [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
Kcpl Greater Missouri Operations Member
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 307.5
Line of Credit Facility, Interest Rate at Period End	2.46%
Line of Credit Facility, Current Borrowing Capacity	$ 450.0
Kcpl Greater Missouri Operations Member | Commercial Paper [Member]
Short-term Debt [Line Items]
Long-term Line of Credit	140.4
Kcpl Greater Missouri Operations Member | Standby Letters of Credit [Member]
Short-term Debt [Line Items]
Amount of letters of credit outstanding	2.1
Kcpl Greater Missouri Operations Member | Master Credit Facility [Member]
Short-term Debt [Line Items]
Debt Instrument, Debt Default, Threshold	100.0
Long-term Line of Credit	$ 0.0
Line of Credit Facility, Covenant Terms	A default by any borrower under the facility or one of their significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default under the facility. Under the terms of this facility, each of Evergy, Westar Energy, KCP&L and GMO is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times.
Line of Credit Facility, Covenant Compliance	in compliance
Kcpl Greater Missouri Operations Member | Master Credit Facility [Member] | Maximum [Member]
Short-term Debt [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
Wester Energy Revolving Credit Facility One [Member] | Westar Energy Inc [Member] | Master Credit Facility [Member]
Short-term Debt [Line Items]
Line Of Credit, Expired		20.7
Line of Credit Facility, Current Borrowing Capacity		730.0
Wester Energy Revolving Credit Facility Two [Member] | Westar Energy Inc [Member] | Master Credit Facility [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Current Borrowing Capacity		$ 270.0

XML

Long-Term Debt Long-Term Debt - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Mar. 31, 2018	Sep. 30, 2018	Jul. 31, 2018
Debt Instrument [Line Items]
Fair value adjustment		$ 153.0
Long-term debt, including current maturities, of KCP&L, GMO and assumed GPE long-term debt		3,659.7
KCPL [Member] | Senior Notes [Member] | Senior Notes Due 2048 KCPL [Member]
Debt Instrument [Line Items]
Long-term debt gross	$ 300.0
Interest rates (in hundredths)	4.20%
Maturity date	Dec. 31, 2048
KCPL [Member] | Senior Notes [Member] | Senior notes due 2018 KCPL [Member]
Debt Instrument [Line Items]
Interest rates (in hundredths)	6.375%
Repayments of long-term debt	$ 350.0
KCPL [Member] | Unsecured Debt [Member] | EIRR bonds 2.875 percent Series 2008 [Member]
Debt Instrument [Line Items]
Debt face amount			$ 23.4
Interest rates (in hundredths)			2.75%
Great Plains Energy [Member] | Senior Notes [Member] | Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt face amount		$ 350.0
Interest rates (in hundredths)		4.85%
Great Plains Energy [Member] | Senior Notes [Member] | Senior Notes 5.292 Percent Series Due 2022 [Member]
Debt Instrument [Line Items]
Debt face amount		$ 287.5
Interest rates (in hundredths)		5.292%
Kcpl Greater Missouri Operations Member | Senior Notes [Member] | Senior Notes Series A due 2025 [Member]
Debt Instrument [Line Items]
Repurchased amount			$ 89.0
Kcpl Greater Missouri Operations Member | Senior Notes [Member] | Senior Notes Series B due 2033 [Member]
Debt Instrument [Line Items]
Repurchased amount			$ 15.0

XML

Fair Value Measurements - Debt (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Fair Value Adjustment, Long-Term Debt	$ 153.0
Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Fair Value Adjustment, Long-Term Debt	153.0
Long-term Debt	7,349.4	$ 3,687.6
Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Variable Interest Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	81.4	109.9
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	7,362.2	4,010.6
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Variable Interest Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	80.7	110.8
Westar Energy Inc [Member] | Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	3,689.7	3,687.6
Westar Energy Inc [Member] | Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Variable Interest Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	81.4	109.9
Westar Energy Inc [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	3,750.8	4,010.6
Westar Energy Inc [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Variable Interest Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	80.7	110.8
KCPL [Member] | Reported Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	2,529.9	2,582.2
KCPL [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	$ 2,611.3	$ 2,799.1

XML

Fair Value Measurements - Recurring (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Assets [Abstract]
NAV	$ 85.9	$ 37.6
Core Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV		0.0
Debt Equity Other Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV		0.0
Alternative Investment Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	23.6	21.7
Real Estate Funds [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	11.5	10.8
Decommissioning Trust Assets [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	41.3	37.6
Rabbi Trusts [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	31.1	0.0
Rabbi Trusts [Member] | Other Evergy [Member]
Assets [Abstract]
NAV	13.5	0.0
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Total	575.7	271.4
NAV	85.9	37.6
Fair Value, Measurements, Recurring [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	245.8	237.1
Total rabbi trust	31.2	34.3
Total	277.0	271.4
NAV	72.4	37.6
Fair Value, Measurements, Recurring [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	272.2	258.4
Total self-insured health plan trust	13.0	10.9
Total	285.2	269.3
Fair Value, Measurements, Recurring [Member] | Other Evergy [Member]
Assets [Abstract]
Total rabbi trust	13.5
NAV	13.5
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	195.2	183.8
Total self-insured health plan trust	0.5	0.5
Fair Value, Measurements, Recurring [Member] | Core Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	36.8	33.3
Total rabbi trust	24.9	27.3
NAV	24.9
Fair Value, Measurements, Recurring [Member] | High-Yield Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	20.1	18.1
Fair Value, Measurements, Recurring [Member] | Emerging Markets Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	15.5	17.3
Fair Value, Measurements, Recurring [Member] | Debt Equity Other Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	14.8	14.1
Total rabbi trust	6.2	6.8
NAV	6.2
Fair Value, Measurements, Recurring [Member] | Alternative Investment Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	23.6	21.7
NAV	23.6	21.7
Fair Value, Measurements, Recurring [Member] | Real Estate Funds [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	11.5	10.8
NAV	11.5	10.8
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	3.1	2.7
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	39.5	35.3
Fair Value, Measurements, Recurring [Member] | US Government Corporations and Agencies Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.4	0.4
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	2.1	2.1
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	32.3	34.1
Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.1	0.1
Fair Value, Measurements, Recurring [Member] | Cash Equivalents [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.3	0.1
Total rabbi trust	0.1	0.2
NAV	0.0
Fair Value, Measurements, Recurring [Member] | Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	1.5	2.5
Fair Value, Measurements, Recurring [Member] | Cash and Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	9.4	7.7
Fair Value, Measurements, Recurring [Member] | Other Trust Assets [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	1.1	0.1
Fair Value, Measurements, Recurring [Member] | Decommissioning Trust Assets [Member]
Assets [Abstract]
Total nuclear decommissioning trust	518.0	237.1
NAV	41.3	37.6
Level 2 transferred to Level 1		199.4
Fair Value, Measurements, Recurring [Member] | Decommissioning Trust Assets [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	41.3
Fair Value, Measurements, Recurring [Member] | Rabbi Trusts [Member]
Assets [Abstract]
Total rabbi trust	44.7	34.3
NAV	44.6	0.0
Level 2 transferred to NAV		34.1
Fair Value, Measurements, Recurring [Member] | Rabbi Trusts [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	31.1
Fair Value, Measurements, Recurring [Member] | Self-Insured Health Plan Trust [Member]
Assets [Abstract]
Total self-insured health plan trust	13.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Total	452.1	0.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	204.5	0.1
Total rabbi trust	0.1	0.2
Total	204.6	0.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	237.3	221.7
Total self-insured health plan trust	10.2	8.5
Total	247.5	230.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other Evergy [Member]
Assets [Abstract]
Total rabbi trust	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	195.2	183.8
Total self-insured health plan trust	0.5	0.5
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Core Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	36.8	0.0
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | High-Yield Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	20.1	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Emerging Markets Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	15.5	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Debt Equity Other Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	14.8	0.0
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Alternative Investment Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Real Estate Funds [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	0.3	0.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Treasury and Government [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	39.5	35.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Government Corporations and Agencies Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Government Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.3	0.1
Total rabbi trust	0.1	0.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	1.5	2.5
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cash and Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	9.4	7.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other Trust Assets [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	1.1	0.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Decommissioning Trust Assets [Member]
Assets [Abstract]
Total nuclear decommissioning trust	441.8	0.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Rabbi Trusts [Member]
Assets [Abstract]
Total rabbi trust	0.1	0.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Self-Insured Health Plan Trust [Member]
Assets [Abstract]
Total self-insured health plan trust	10.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Total	37.7	233.5
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	199.4
Total rabbi trust	0.0	34.1
Total	0.0	233.5
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	34.9	36.7
Total self-insured health plan trust	2.8	2.4
Total	37.7	39.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Evergy [Member]
Assets [Abstract]
Total rabbi trust	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Core Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	33.3
Total rabbi trust	0.0	27.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | High-Yield Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	18.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Emerging Markets Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	17.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Debt Equity Other Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	14.1
Total rabbi trust	0.0	6.8
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Alternative Investment Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Real Estate Funds [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	2.8	2.4
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Treasury and Government [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Government Corporations and Agencies Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.4	0.4
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	2.1	2.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	32.3	34.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Government Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.1	0.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Trust Assets [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Decommissioning Trust Assets [Member]
Assets [Abstract]
Total nuclear decommissioning trust	34.9	199.4
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Rabbi Trusts [Member]
Assets [Abstract]
Total rabbi trust	0.0	34.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Self-Insured Health Plan Trust [Member]
Assets [Abstract]
Total self-insured health plan trust	2.8
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Total	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Total	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Total	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Evergy [Member]
Assets [Abstract]
Total rabbi trust	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Core Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | High-Yield Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Emerging Markets Bond Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Debt Equity Other Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Alternative Investment Fund [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Real Estate Funds [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Treasury and Government [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Government Corporations and Agencies Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Government Debt Securities [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Cash and Cash Equivalents [Member] | KCPL [Member]
Assets [Abstract]
Total self-insured health plan trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Trust Assets [Member] | KCPL [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Decommissioning Trust Assets [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Rabbi Trusts [Member]
Assets [Abstract]
Total rabbi trust	0.0	0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Self-Insured Health Plan Trust [Member]
Assets [Abstract]
Total self-insured health plan trust	0.0
Geographic Distribution, Domestic [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
NAV	6.2	5.1
Geographic Distribution, Domestic [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	80.9	73.8
NAV	6.2	5.1
Geographic Distribution, Domestic [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	74.7	0.0
Geographic Distribution, Domestic [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	68.7
Geographic Distribution, Domestic [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	0.0
Geographic Distribution, Foreign [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	42.3	47.9
Geographic Distribution, Foreign [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	42.3	0.0
Geographic Distribution, Foreign [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	0.0	47.9
Geographic Distribution, Foreign [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] | Westar Energy Inc [Member]
Assets [Abstract]
Total nuclear decommissioning trust	$ 0.0	$ 0.0

XML

Fair Value Measurements - NAV (Details) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($) fund extension	Dec. 31, 2017 USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	$ 85.9	$ 37.6
NAV, Unfunded Commitments	4.8	2.8
Westar Energy Inc [Member] | Decommissioning Trust Assets [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	41.3	37.6
NAV, Unfunded Commitments	4.8	2.8
Westar Energy Inc [Member] | Alternative Investment Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	23.6	21.7
NAV, Unfunded Commitments	$ 0.0	0.0
NAV, Length of Settlement	65 days
Westar Energy Inc [Member] | Real Estate Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	$ 11.5	10.8
NAV, Unfunded Commitments	$ 0.0	0.0
NAV, Length of Settlement	65 days
Westar Energy Inc [Member] | Core Bond Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value		0.0
NAV, Unfunded Commitments	$ 0.0	0.0
Westar Energy Inc [Member] | Debt Equity Other Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value		0.0
NAV, Unfunded Commitments	0.0	0.0
Westar Energy Inc [Member] | Rabbi Trusts [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	31.1	0.0
NAV, Unfunded Commitments	0.0	0.0
Other Evergy [Member] | Rabbi Trusts [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	13.5	0.0
NAV, Unfunded Commitments	0.0	0.0
Geographic Distribution, Domestic [Member] | Westar Energy Inc [Member] | Equity Securities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Fair Value	6.2	5.1
NAV, Unfunded Commitments	$ 4.8	$ 2.8
NAV, Number of funds | fund	5
NAV, Number of funds making distributions | fund	3
Geographic Distribution, Domestic [Member] | Westar Energy Inc [Member] | Equity Securities - Fourth Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Length of Settlement	15 years
NAV, Extension term	1 year
NAV, Number of extensions | extension	3
Geographic Distribution, Domestic [Member] | Westar Energy Inc [Member] | Equity Securities - Fifth Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
NAV, Length of Settlement	15 years

XML

Fair Value Measurements - Gain (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ 18.3	$ 24.2	$ 3.4	$ 41.2
Decommissioning Trust Assets - Equity [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	15.1	7.7	1.1	22.2
Rabbi Trusts [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	3.7	16.5	3.1	19.0
Decommissioning Trust Assets - Debt [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(0.5)	0.0	(0.8)	0.0
Westar Energy Inc [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	10.2	24.2	(3.2)	41.2
Westar Energy Inc [Member] | Decommissioning Trust Assets - Equity [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	6.5	7.7	(6.4)	22.2
Westar Energy Inc [Member] | Rabbi Trusts [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	3.7	16.5	3.2	19.0
KCPL [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	8.1	6.9	6.3	18.5
KCPL [Member] | Decommissioning Trust Assets - Equity [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	8.6	6.9	9.1	17.8
KCPL [Member] | Decommissioning Trust Assets - Debt [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ (0.5)	$ 0.0	$ (2.8)	$ 0.7

XML

Guarantees (Details) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Guarantor Obligations [Line Items]
Origin and purpose	In the ordinary course of business, Evergy and certain of its subsidiaries enter into various agreements providing financial or performance assurance to third parties on behalf of certain subsidiaries. Such agreements include, for example, guarantees and letters of credit. These agreements are entered into primarily to support or enhance the creditworthiness otherwise attributed to a subsidiary on a stand-alone basis, thereby facilitating the extension of sufficient credit to accomplish the subsidiary's intended business purposes.
Maximum exposure	$ 111.3
Direct Guarantee [Member]
Guarantor Obligations [Line Items]
Origin and purpose	direct guarantees to GMO counterparties
Maximum exposure	$ 17.0
Obligations term	expire in 2020
Guarantee of Indebtedness of Others [Member] | Long-term Debt [Member]
Guarantor Obligations [Line Items]
Origin and purpose	guarantee of GMO long-term debt
Maximum exposure	$ 94.3
Obligations term	maturity dates ranging from 2019 to 2023
Guarantee of Indebtedness of Others [Member] | Commercial Paper [Member]
Guarantor Obligations [Line Items]
Origin and purpose	guaranteed GMO's commercial paper program
Maximum exposure	$ 140.4

XML

Related Party Transactions and Relationships (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Westar Energy Inc [Member] | KCPL Greater Missouri Operations [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	$ 0.7		$ 0.7		$ 0.0
Westar Energy Inc [Member] | KCPL [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	(59.3)		(59.3)		0.0
Westar Energy Inc [Member] | KCPL [Member] | Operating Expenses and Capital Costs Billed [Member]
Related Party Transaction [Line Items]
Related party transaction	4.8		10.8
Westar Energy Inc [Member] | Evergy [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	(14.6)		(14.6)		0.0
Westar Energy Inc [Member] | Evergy [Member] | Income Taxes Payable [Member]
Related Party Transaction [Line Items]
Due to related parties	4.4		4.4
KCPL [Member] | Money Pool [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	0.0		0.0		0.0
KCPL [Member] | KCPL Greater Missouri Operations [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	63.3		63.3		65.8
KCPL [Member] | Westar Energy Inc [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	59.3		59.3		0.0
KCPL [Member] | Evergy [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	16.4		16.4		0.0
KCPL [Member] | Evergy [Member] | Income Taxes Payable [Member]
Related Party Transaction [Line Items]
Due to related parties	21.4		21.4
KCPL [Member] | Great Plains Energy [Member]
Related Party Transaction [Line Items]
Due from (to) related parties	$ 0.0		$ 0.0		$ 18.9
Iatan No 1 And 2 [Member] | KCPL Greater Missouri Operations [Member]
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	18.00%		18.00%
Iatan No 1 And 2 [Member] | KCPL [Member] | KCPL Greater Missouri Operations [Member] | Operating Expenses and Capital Costs Billed [Member]
Related Party Transaction [Line Items]
Related party transaction	$ 43.4	$ 49.2	$ 139.6	$ 145.0
Jeffrey Energy Center [Member] | KCPL Greater Missouri Operations [Member]
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	8.00%		8.00%
Jeffrey Energy Center [Member] | Westar Energy Inc [Member] | KCPL Greater Missouri Operations [Member] | Operating Expenses and Capital Costs Billed [Member]
Related Party Transaction [Line Items]
Related party transaction	$ 0.8		$ 4.5
La Cygne Station [Member] | Westar Energy Inc [Member]
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	50.00%		50.00%
La Cygne Station [Member] | KCPL [Member] | Westar Energy Inc [Member] | Operating Expenses and Capital Costs Billed [Member]
Related Party Transaction [Line Items]
Related party transaction	$ 35.5		$ 50.8

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Shareholders' Equity (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Oct. 01, 2018	Aug. 01, 2018	Jul. 31, 2018	Dec. 31, 2017
Common Shareholders' Equity [Line Items]
Common stock - shares authorized (in shares)	600,000,000				275,000,000
Preferred stock - shares authorized (in shares)	12,000,000
Number of shares authorized to be repurchased (in shares)				60,000,000
Stock Repurchased and Retired During Period, Value	$ 486.1
Stock repurchased and retired during period under repurchase plan, value	$ 486.0
Stock Repurchased and Retired During Period, Shares	6,900,000
Accelerated Share Repurchases, Settlement (Payment) or Receipt			$ (450.0)
Partial Settlement Of Accelerated Share Repurchase Agreement, Shares			6,300,000
Restriction on payment of dividends, minimum ratio of total capitalization	35.00%
Restricted net assets of subsidiaries	$ 5,200.0
Westar Energy Inc [Member]
Common Shareholders' Equity [Line Items]
Common stock - shares authorized (in shares)	1,000				275,000,000
Restriction on payment of dividends, minimum ratio of total capitalization	40.00%
KCPL [Member]
Common Shareholders' Equity [Line Items]
Common stock - shares authorized (in shares)	1,000				1,000
Restriction on payment of dividends, minimum ratio of total capitalization	40.00%
Retained earnings restrictions	$ 227.4
Subsequent Event [Member]
Common Shareholders' Equity [Line Items]
Additional Shares From Early ASR Settlement		848,226
Maximum [Member] | Westar Energy Inc [Member] | Master Credit Facility [Member]
Common Shareholders' Equity [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
Maximum [Member] | KCPL [Member] | Master Credit Facility [Member]
Common Shareholders' Equity [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
Maximum [Member] | Evergy [Member] | Master Credit Facility [Member]
Common Shareholders' Equity [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%
Maximum [Member] | Kcpl Greater Missouri Operations Member | Master Credit Facility [Member]
Common Shareholders' Equity [Line Items]
Debt Instrument, debt to capitalization ratio	65.00%

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Variable Interest Entities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Property, plant and equipment	$ 18,836.0	$ 9,553.8
Current maturities of long-term debt	709.6	0.0
Accrued interest	119.6	72.7
Long-term debt, net	6,639.8	3,687.6
Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Property, plant and equipment	170.9	176.3
Current maturities of long-term debt	30.3	28.5
Accrued interest	0.0	0.7
Long-term debt, net	$ 51.1	81.4
Jeffrey Energy Center [Member]
Variable Interest Entity [Line Items]
VIE ownership percentage	8.00%
La Cygne Unit 2 [Member]
Variable Interest Entity [Line Items]
VIE ownership percentage	50.00%
Westar Energy Inc [Member]
Variable Interest Entity [Line Items]
Property, plant and equipment	$ 9,637.5	9,553.8
Current maturities of long-term debt	300.0	0.0
Accrued interest	65.3	72.7
Long-term debt, net	3,389.7	3,687.6
Westar Energy Inc [Member] | Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Property, plant and equipment	170.9	176.3
Current maturities of long-term debt	30.3	28.5
Accrued interest	0.0	0.7
Long-term debt, net	$ 51.1	$ 81.4

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Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Current income taxes
Federal	$ (30.3)	$ (16.7)	$ (21.5)	$ (14.5)
State	1.5	0.0	1.9	0.4
Total	(28.8)	(16.7)	(19.6)	(14.1)
Deferred income taxes
Federal	70.6	58.8	86.0	101.7
State	23.3	14.3	(35.7)	27.0
Total	93.9	73.1	50.3	128.7
Investment tax credit amortization	(1.0)	(0.6)	(2.4)	(2.0)
Income tax expense	$ 64.1	$ 55.8	$ 28.3	$ 112.6
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax (in hundredths)	21.00%	35.00%	21.00%	35.00%
COLI policies	(2.40%)	(4.60%)	(2.40%)	(4.50%)
State income taxes	4.60%	4.30%	4.70%	4.30%
Flow through depreciation for plant-related differences	(1.50%)	2.30%	(1.60%)	2.80%
Federal tax credits	(7.50%)	(7.10%)	(7.50%)	(7.00%)
Non-controlling interest	(0.40%)	(0.50%)	(0.40%)	(0.80%)
AFUDC Equity	(0.10%)	(0.20%)	(0.10%)	(0.20%)
Amortization of federal investment tax credits	(0.60%)	(0.60%)	(0.60%)	(0.60%)
State tax rate change	0.10%	0.00%	(9.50%)	0.00%
Valuation allowance	0.00%	0.00%	0.40%	0.00%
Stock compensation	0.00%	0.00%	(0.50%)	(1.00%)
Officer compensation limitation	1.20%	0.00%	1.20%	0.00%
Other	0.80%	(2.80%)	0.40%	(0.70%)
Effective income tax rate (in hundredths)	15.20%	25.80%	5.10%	27.30%
Westar Energy Inc [Member]
Current income taxes
Federal	$ 8.0	$ (16.7)	$ 18.9	$ (14.5)
State	(9.2)	0.0	(6.7)	0.4
Total	(1.2)	(16.7)	12.2	(14.1)
Deferred income taxes
Federal	12.3	58.8	15.4	101.7
State	12.0	14.3	(47.6)	27.0
Total	24.3	73.1	(32.2)	128.7
Investment tax credit amortization	(0.7)	(0.6)	(2.0)	(2.0)
Income tax expense	$ 22.4	$ 55.8	$ (22.0)	$ 112.6
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax (in hundredths)	21.00%	35.00%	21.00%	35.00%
COLI policies	(4.00%)	(4.60%)	(4.00%)	(4.50%)
State income taxes	1.10%	4.30%	3.30%	4.30%
Flow through depreciation for plant-related differences	1.50%	2.30%	0.30%	2.80%
Federal tax credits	(11.80%)	(7.10%)	(11.70%)	(7.00%)
Non-controlling interest	(0.60%)	(0.50%)	(0.70%)	(0.80%)
AFUDC Equity	(0.10%)	(0.20%)	(0.10%)	(0.20%)
Amortization of federal investment tax credits	(0.80%)	(0.60%)	(0.80%)	(0.60%)
Changes In Uncertain Tax Positions, Net	0.10%	0.00%	0.10%	0.00%
State tax rate change	0.00%	0.00%	(17.70%)	0.00%
Valuation allowance	0.00%	0.00%	0.60%	0.00%
Stock compensation	0.00%	0.00%	(0.90%)	(1.00%)
Officer compensation limitation	1.90%	0.00%	1.90%	0.00%
Other	2.90%	(2.80%)	1.30%	(0.70%)
Effective income tax rate (in hundredths)	11.20%	25.80%	(7.40%)	27.30%
KCPL [Member]
Current income taxes
Federal	$ 20.7	$ 41.8	$ 43.5	$ 56.2
State	6.8	7.6	11.6	10.2
Total	27.5	49.4	55.1	66.4
Deferred income taxes
Federal	(1.9)	10.3	(23.4)	27.2
State	2.7	2.8	49.4	6.2
Total	0.8	13.1	26.0	33.4
Investment tax credit amortization	(0.3)	(0.3)	(0.8)	(0.8)
Income tax expense	$ 28.0	$ 62.2	$ 80.3	$ 99.0
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax (in hundredths)	21.00%	35.00%	21.00%	35.00%
COLI policies	(0.20%)	(0.30%)	(0.20%)	(0.30%)
State income taxes	5.00%	3.90%	5.10%	3.90%
Flow through depreciation for plant-related differences	(4.90%)	0.10%	(4.90%)	0.20%
Federal tax credits	(1.90%)	(3.10%)	(1.80%)	(2.60%)
AFUDC Equity	0.00%	(0.70%)	(0.10%)	(0.70%)
Amortization of federal investment tax credits	(0.40%)	(0.40%)	(0.40%)	(0.40%)
State tax rate change	0.00%	0.00%	14.50%	0.00%
Valuation allowance	0.00%	0.60%	0.00%	0.40%
Stock compensation	0.00%	0.10%	0.00%	0.20%
Officer compensation limitation	0.70%	0.00%	0.50%	0.00%
Other	(0.40%)	0.10%	(1.00%)	0.10%
Effective income tax rate (in hundredths)	18.90%	35.30%	32.70%	35.80%

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Taxes Tax Reform (Details) - USD ($) $ in Millions	Jun. 01, 2018	Sep. 30, 2018	Dec. 31, 2017
Regulatory liabilities		$ 2,357.1	$ 1,094.0
Revenue Subject to Refund [Member]
Regulatory liabilities		155.1
Westar Energy Inc [Member]
Regulatory liabilities		1,136.9	1,094.0
Westar Energy Inc [Member] | Revenue Subject to Refund [Member]
Regulatory liabilities		66.3
KCPL [Member]
Regulatory liabilities		862.9	$ 770.9
Decrease in net deferred income tax liabilities due to tax reform	$ 46.6
Decrease in net deferred income tax liabilities for revaluation of deferred income tax assets and liabilities in rate base	28.8
Decrease in net deferred income tax liabilities for tax gross-up adjustment for ratemaking purposes due to tax reform	9.9
Income tax benefit from tax reform	$ 15.5
KCPL [Member] | Revenue Subject to Refund [Member]
Regulatory liabilities		$ 64.6