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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
 

FORM 10-Q
 
(Mark One)
 
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the quarterly period ended March 31, 2023
 
OR
 
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the transition period from              to          
 
Commission File
Number
 Exact Name of Each Registrant as specified in its
charter; State of Incorporation; Address; and
Telephone Number
IRS Employer
Identification No.
1-8962 PINNACLE WEST CAPITAL CORPORATION86-0512431
(an Arizona corporation)
400 North Fifth Street, P.O. Box 53999
PhoenixArizona85072-3999
(602)250-1000
1-4473 ARIZONA PUBLIC SERVICE COMPANY86-0011170
(an Arizona corporation)
400 North Fifth Street, P.O. Box 53999
PhoenixArizona85072-3999
(602)250-1000
 
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock
PNW
The New York Stock Exchange

Indicate by check mark whether each 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.
 
PINNACLE WEST CAPITAL CORPORATIONYes
 
No 
 
ARIZONA PUBLIC SERVICE COMPANYYes
 
No 
 
 
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
PINNACLE WEST CAPITAL CORPORATIONYes
 
No 
 
ARIZONA PUBLIC SERVICE COMPANYYes
 
No 
 
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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.

 PINNACLE WEST CAPITAL CORPORATION
Large accelerated filer
 
Accelerated filer Non-accelerated filer Smaller reporting company
Emerging growth company
 
ARIZONA PUBLIC SERVICE COMPANY
Large accelerated filerAccelerated filer Non-accelerated filer
 
Smaller reporting company
Emerging growth 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 provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether each registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
PINNACLE WEST CAPITAL CORPORATIONYes   No 
 
ARIZONA PUBLIC SERVICE COMPANYYes    No 
 
 
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
 
PINNACLE WEST CAPITAL CORPORATIONNumber of shares of common stock, no par value, outstanding as of April 27, 2023: 113,255,998
ARIZONA PUBLIC SERVICE COMPANYNumber of shares of common stock, $2.50 par value, outstanding as of April 27, 2023: 71,264,947
 
Arizona Public Service Company meets the conditions set forth in General Instruction H(1)(a) and (b) of Form 10-Q and is therefore filing this form with the reduced disclosure format allowed under that General Instruction.





TABLE OF CONTENTS
 Page
  
 
 
 
   
 
 
 
This combined quarterly report on Form 10-Q is separately provided by Pinnacle West Capital Corporation (“Pinnacle West”) and Arizona Public Service Company (“APS”).  Any use of the words “Company,” “we,” and “our” refer to Pinnacle West.  Each registrant is providing on its own behalf all of the information contained in this Form 10-Q that relates to such registrant and, where required, its subsidiaries.  Except as stated in the preceding sentence, neither registrant is providing any information that does not relate to such registrant, and therefore makes no representation as to any such information.  The information required with respect to each company is set forth within the applicable items.  Item 1 of this report includes Condensed Consolidated Financial Statements of Pinnacle West and Condensed Consolidated Financial Statements of APS.  Item 1 of this report also includes Combined Notes to Condensed Consolidated Financial Statements.

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FORWARD-LOOKING STATEMENTS
    This document contains forward-looking statements based on current expectations.  These forward-looking statements are often identified by words such as “estimate,” “predict,” “may,” “believe,” “plan,” “expect,” “require,” “intend,” “assume,” “project,” “anticipate,” “goal,” “seek,” “strategy,” “likely,” “should,” “will,” “could,” and similar words.  Because actual results may differ materially from expectations, we caution readers not to place undue reliance on these statements.  A number of factors could cause future results to differ materially from historical results, or from outcomes currently expected or sought by Pinnacle West or APS.  In addition to the Risk Factors described in Part I, Item 1A of the Pinnacle West/APS Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (“2022 Form 10-K”), Part II, Item 1A of this report and in Part I, Item 2 — “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this report, these factors include, but are not limited to:
the current economic environment and its effects, such as lower economic growth, a tight labor market, inflation, supply chain delays, increased expenses, volatile capital markets, or other unpredictable effects;
our ability to manage capital expenditures and operations and maintenance costs while maintaining reliability and customer service levels;
variations in demand for electricity, including those due to weather, seasonality (including large increases in ambient temperatures), the general economy or social conditions, customer and sales growth (or decline), the effects of energy conservation measures and distributed generation, and technological advancements;
the potential effects of climate change on our electric system, including as a result of weather extremes, such as prolonged drought and high temperature variations in the area where APS conducts its business;
power plant and transmission system performance and outages;
competition in retail and wholesale power markets;
regulatory and judicial decisions, developments, and proceedings;
new legislation, ballot initiatives, and regulation or interpretations of existing legislation or regulations, including those relating to environmental requirements, regulatory and energy policy, nuclear plant operations, and potential deregulation of retail electric markets;
fuel and water supply availability;
our ability to achieve timely and adequate rate recovery of our costs through our rates and adjustor recovery mechanisms, including returns on and of debt and equity capital investment;
our ability to meet renewable energy and energy efficiency mandates and recover related costs;
the ability of APS to achieve its clean energy goals (including a goal by 2050 of 100% clean, carbon-free electricity) and, if these goals are achieved, the impact of such achievement on APS, its customers, and its business, financial condition, and results of operations;
risks inherent in the operation of nuclear facilities, including spent fuel disposal uncertainty;
current and future economic conditions in Arizona;
the direct or indirect effect on our facilities or business from cybersecurity threats or intrusions, data security breaches, terrorist attack, physical attack, severe storms, or other catastrophic events, such as fires, explosions, pandemic health events, or similar occurrences;
the development of new technologies which may affect electric sales or delivery, including as a result of delays in the development and application of new technologies;
the cost of debt, including increased cost as a result of rising interest rates, and equity capital and the ability to access capital markets when required;
environmental, economic, and other concerns surrounding coal-fired generation, including regulation of greenhouse gas emissions (“GHG”);
volatile fuel and purchased power costs;
the investment performance of the assets of our nuclear decommissioning trust, pension, and other postretirement benefit plans and the resulting impact on future funding requirements;
the liquidity of wholesale power markets and the use of derivative contracts in our business;
potential shortfalls in insurance coverage;
new accounting requirements or new interpretations of existing requirements;
generation, transmission, and distribution facility and system conditions and operating costs;
2

Table of Contents
the ability to meet the anticipated future need for additional generation and associated transmission facilities in our region;
the willingness or ability of our counterparties, power plant participants, and power plant landowners to meet contractual or other obligations or extend the rights for continued power plant operations; and
restrictions on dividends or other provisions in our credit agreements and Arizona Corporation Commission (“ACC”) orders. 
These and other factors are discussed in the Risk Factors described in Part I, Item 1A of our 2022 Form 10-K, Part II, Item 1A of this report, and in Part I, Item 2 — “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this report, which readers should review carefully before placing any reliance on our financial statements or disclosures.  Neither Pinnacle West nor APS assumes any obligation to update these statements, even if our internal estimates change, except as required by law.
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Table of Contents
PART I — FINANCIAL INFORMATION
 
ITEM 1.  FINANCIAL STATEMENTS
 
 INDEX TO FINANCIAL STATEMENTS AND FINANCIAL STATEMENT SCHEDULES
 
 Page
  
 


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PINNACLE WEST CAPITAL CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(unaudited)
(dollars and shares in thousands, except per share amounts)
 
 Three Months Ended
March 31,
 20232022
OPERATING REVENUES (Note 2)$944,955 $783,531 
OPERATING EXPENSES  
Fuel and purchased power394,504 265,269 
Operations and maintenance250,080 218,342 
Depreciation and amortization191,906 186,605 
Taxes other than income taxes57,138 57,998 
Other expenses610 825 
Total894,238 729,039 
OPERATING INCOME50,717 54,492 
OTHER INCOME (DEDUCTIONS)  
Allowance for equity funds used during construction15,061 9,747 
Pension and other postretirement non-service credits - net (Note 5)
9,865 23,809 
Other income (Note 9)
6,077 1,704 
Other expense (Note 9)
(4,131)(3,422)
Total26,872 31,838 
INTEREST EXPENSE  
Interest charges88,119 65,389 
Allowance for borrowed funds used during construction(12,722)(4,482)
Total75,397 60,907 
INCOME BEFORE INCOME TAXES2,192 25,423 
INCOME TAXES1,183 4,161 
NET INCOME1,009 21,262 
Less: Net income attributable to noncontrolling interests (Note 6)
4,306 4,306 
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS$(3,297)$16,956 
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC113,358 113,102 
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED113,358 113,295 
EARNINGS PER WEIGHTED-AVERAGE COMMON SHARE OUTSTANDING  
Net income (loss) attributable to common shareholders - basic$(0.03)$0.15 
Net income (loss) attributable to common shareholders - diluted$(0.03)$0.15 
 The accompanying notes are an integral part of the financial statements.
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PINNACLE WEST CAPITAL CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(unaudited)
(dollars in thousands)
 
 Three Months Ended
March 31,
 20232022
NET INCOME$1,009 $21,262 
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX  
Derivative instruments net unrealized gain (loss), net of tax benefit (expense) of $202 and $(83)
(616)252 
Pension and other postretirement benefit activity, net of tax expense of $169 and $296
515 901 
Total other comprehensive income (loss)(101)1,153 
COMPREHENSIVE INCOME908 22,415 
Less: Comprehensive income attributable to noncontrolling interests4,306 4,306 
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS$(3,398)$18,109 
The accompanying notes are an integral part of the financial statements.

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PINNACLE WEST CAPITAL CORPORATION
CONDENSED CONSOLIDATED BALANCE SHEETS
(unaudited)
(dollars in thousands)
 
 March 31, 2023December 31, 2022
ASSETS  
CURRENT ASSETS  
Cash and cash equivalents$6,951 $4,832 
Customer and other receivables449,096 453,209 
Accrued unbilled revenues143,276 164,764 
Allowance for doubtful accounts (Note 2)
(22,112)(23,778)
Materials and supplies (at average cost)425,457 410,481 
Income tax receivable11,699 14,086 
Fossil fuel (at average cost)39,571 40,155 
Assets from risk management activities (Note 7)
16,095 87,835 
Deferred fuel and purchased power regulatory asset (Note 4)
469,962 460,561 
Other regulatory assets (Note 4)
130,840 78,318 
Other current assets77,551 60,091 
Total current assets1,748,386 1,750,554 
INVESTMENTS AND OTHER ASSETS  
Nuclear decommissioning trusts (Notes 11 and 12)
1,125,617 1,073,410 
Other special use funds (Notes 11 and 12)
352,877 347,231 
Assets from risk management activities (Note 7)
17,082 44,394 
Other assets147,430 125,672 
Total investments and other assets1,643,006 1,590,707 
PROPERTY, PLANT AND EQUIPMENT  
Plant in service and held for future use22,624,104 22,452,146 
Accumulated depreciation and amortization(8,072,595)(7,929,878)
Net14,551,509 14,522,268 
Construction work in progress2,101,830 1,882,791 
Palo Verde sale leaseback, net of accumulated depreciation (Note 6)
89,329 90,296 
Intangible assets, net of accumulated amortization260,454 258,880 
Nuclear fuel, net of accumulated amortization112,735 100,119 
Total property, plant and equipment17,115,857 16,854,354 
DEFERRED DEBITS  
Regulatory assets (Note 4)
1,258,663 1,283,221 
Operating lease right-of-use assets1,361,847 801,688 
Assets for pension and other postretirement benefits (Note 5)
405,409 396,599 
Other47,205 46,282 
Total deferred debits3,073,124 2,527,790 
TOTAL ASSETS$23,580,373 $22,723,405 
 The accompanying notes are an integral part of the financial statements.

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PINNACLE WEST CAPITAL CORPORATION
CONDENSED CONSOLIDATED BALANCE SHEETS
(unaudited)
(dollars in thousands)
 March 31, 2023December 31, 2022
LIABILITIES AND EQUITY  
CURRENT LIABILITIES  
Accounts payable$361,410 $430,425 
Accrued taxes214,484 164,440 
Accrued interest72,146 61,217 
Common dividends payable 97,895 
Short-term borrowings (Note 3)
497,550 340,720 
Current maturities of long-term debt (Note 3)
60,821 50,685 
Customer deposits41,186 41,769 
Liabilities from risk management activities (Note 7)
83,874 37,697 
Liabilities for asset retirements20,321 12,232 
Operating lease liabilities65,130 105,210 
Regulatory liabilities (Note 4)
202,266 271,575 
Other current liabilities105,141 148,276 
Total current liabilities1,724,329 1,762,141 
LONG-TERM DEBT LESS CURRENT MATURITIES (Note 3)
7,916,554 7,741,286 
DEFERRED CREDITS AND OTHER  
Deferred income taxes2,379,720 2,384,421 
Regulatory liabilities (Note 4)
2,060,273 2,061,776 
Liabilities for asset retirements787,220 785,530 
Liabilities for pension benefits (Note 5)
114,290 116,286 
Customer advances532,596 422,103 
Coal mine reclamation180,446 179,255 
Deferred investment tax credit184,427 180,677 
Unrecognized tax benefits38,863 38,658 
Operating lease liabilities1,240,584 639,247 
Other256,620 252,149 
Total deferred credits and other7,775,039 7,060,102 
COMMITMENTS AND CONTINGENCIES (Note 8)
EQUITY  
Common stock, no par value; authorized 150,000,000 shares, 113,359,467 and 113,247,189 issued at respective dates
2,730,851 2,724,740 
Treasury stock at cost; 106,141 and 73,613 shares at respective dates
(7,451)(5,005)
Total common stock2,723,400 2,719,735 
Retained earnings3,357,052 3,360,347 
Accumulated other comprehensive loss (Note 13)(31,536)(31,435)
Total shareholders’ equity6,048,916 6,048,647 
Noncontrolling interests (Note 6)
115,535 111,229 
Total equity6,164,451 6,159,876 
TOTAL LIABILITIES AND EQUITY$23,580,373 $22,723,405 
The accompanying notes are an integral part of the financial statements.
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PINNACLE WEST CAPITAL CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(unaudited)
(dollars in thousands)
 Three Months Ended
March 31,
 20232022
CASH FLOWS FROM OPERATING ACTIVITIES  
Net income$1,009 $21,262 
Adjustments to reconcile net income to net cash provided by operating activities:  
Depreciation and amortization including nuclear fuel208,772 203,639 
Deferred fuel and purchased power(90,305)(6,110)
Deferred fuel and purchased power amortization80,904 39,442 
Allowance for equity funds used during construction(15,061)(9,747)
Deferred income taxes(5,150)3,835 
Deferred investment tax credit3,749 (319)
Change in derivative instruments fair value786  
Stock compensation3,635 5,338 
Changes in current assets and liabilities:  
Customer and other receivables2,831 66,146 
Accrued unbilled revenues21,488 1,215 
Materials, supplies and fossil fuel(14,392)(11,892)
Income tax receivable2,387 542 
Other current assets(8,110)13,347 
Accounts payable(69,576)(13,873)
Accrued taxes50,044 53,847 
Other current liabilities(84,239)(40,211)
Change in margin and collateral accounts - assets11 8,600 
Change in other long-term assets(58,036)52,153 
Change in operating lease assets(8,920)324 
Change in other long-term liabilities138,649 (47,883)
Change in operating lease liabilities51,129 953 
Net cash provided by operating activities211,605 340,608 
CASH FLOWS FROM INVESTING ACTIVITIES 
Capital expenditures(445,171)(391,583)
Contributions in aid of construction25,165 28,262 
Allowance for borrowed funds used during construction(12,722)(4,422)
Proceeds from nuclear decommissioning trusts sales and other special use funds226,626 361,754 
Investment in nuclear decommissioning trusts and other special use funds(227,196)(361,809)
Other(19,941)(6,543)
Net cash used for investing activities(453,239)(374,341)
CASH FLOWS FROM FINANCING ACTIVITIES  
Issuance of long-term debt185,136 312,052 
Short-term borrowing and (repayments) - net156,830 (29,050)
Dividends paid on common stock(96,078)(94,265)
Repayment of long-term debt (150,000)
Common stock equity issuances and (purchases) - net(2,135)(1,005)
Net cash provided by financing activities243,753 37,732 
NET INCREASE IN CASH AND CASH EQUIVALENTS2,119 3,999 
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD4,832 9,969 
CASH AND CASH EQUIVALENTS AT END OF PERIOD$6,951 $13,968 
The accompanying notes are an integral part of the financial statements.
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PINNACLE WEST CAPITAL CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
(unaudited)
(dollars in thousands)

Three Months Ended March 31, 2023
Common StockTreasury StockRetained EarningsAccumulated Other Comprehensive Income (Loss)Noncontrolling InterestsTotal
SharesAmountSharesAmount
Balance, December 31, 2022
113,247,189 $2,724,740 (73,613)$(5,005)$3,360,347 $(31,435)$111,229 $6,159,876 
Net income (loss)— — (3,297)— 4,306 1,009 
Other comprehensive loss
— — — (101)— (101)
Issuance of common stock112,278 6,111 — — — — 6,111 
Purchase of treasury stock (a)— (33,154)(2,490)— — — (2,490)
Reissuance of treasury stock for stock-based compensation and other— 626 44 — — — 44 
Other— — 2 — — 2 
Balance, March 31, 2023
113,359,467 $2,730,851 (106,141)$(7,451)$3,357,052 $(31,536)$115,535 $6,164,451 

Three Months Ended March 31, 2022
Common StockTreasury StockRetained EarningsAccumulated Other Comprehensive Income (Loss)Noncontrolling InterestsTotal
SharesAmountSharesAmount
Balance, December 31, 2021
113,014,528 $2,702,743 (87,608)$(6,401)$3,264,719 $(54,861)$115,260 $6,021,460 
Net income— — 16,956 — 4,306 21,262 
Other comprehensive income
— — — 1,153 — 1,153 
Dividends on common stock — — (74)— — (74)
Issuance of common stock33,171 3,582 — — — — 3,582 
Purchase of treasury stock (a)— (24,885)(1,665)— — — (1,665)
Reissuance of treasury stock for stock-based compensation and other— 61,572 4,418 — — — 4,418 
Balance, March 31, 2022
113,047,699 $2,706,325 (50,921)$(3,648)$3,281,601 $(53,708)$119,566 $6,050,136 
(a)Primarily represents shares of common stock withheld from certain stock awards for tax purposes.
The accompanying notes are an integral part of the financial statements.




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ARIZONA PUBLIC SERVICE COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(unaudited)
(dollars in thousands)
 
 Three Months Ended
March 31,
 20232022
OPERATING REVENUES (Note 2)
$944,955 $783,531 
OPERATING EXPENSES  
Fuel and purchased power394,504 265,269 
Operations and maintenance246,179 214,601 
Depreciation and amortization191,884 186,583 
Taxes other than income taxes57,125 57,959 
Other expenses610 825 
Total890,302 725,237 
OPERATING INCOME54,653 58,294 
OTHER INCOME (DEDUCTIONS)  
Allowance for equity funds used during construction15,061 9,747 
Pension and other postretirement non-service credits - net (Note 5)
10,106 23,907 
Other income (Note 9)
5,075 1,152 
Other expense (Note 9)
(2,617)(1,849)
Total27,625 32,957 
INTEREST EXPENSE  
Interest charges75,222 62,309 
Allowance for borrowed funds used during construction(11,157)(4,422)
Total64,065 57,887 
INCOME BEFORE INCOME TAXES18,213 33,364 
INCOME TAXES3,247 4,859 
NET INCOME14,966 28,505 
Less: Net income attributable to noncontrolling interests (Note 6)
4,306 4,306 
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDER$10,660 $24,199 
 The accompanying notes are an integral part of the financial statements.
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ARIZONA PUBLIC SERVICE COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(unaudited)
(dollars in thousands)
 
 Three Months Ended
March 31,
 20232022
NET INCOME$14,966 $28,505 
OTHER COMPREHENSIVE INCOME, NET OF TAX  
Pension and other postretirement benefits activity, net of tax expense of $150 and $269
457 820 
Total other comprehensive income (loss)457 820 
COMPREHENSIVE INCOME15,423 29,325 
Less: Comprehensive income attributable to noncontrolling interests4,306 4,306 
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDER$11,117 $25,019 
 The accompanying notes are an integral part of the financial statements.

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ARIZONA PUBLIC SERVICE COMPANY
CONDENSED CONSOLIDATED BALANCE SHEETS
(unaudited)
(dollars in thousands)
 
March 31,
2023
December 31,
2022
ASSETS  
PROPERTY, PLANT AND EQUIPMENT  
Plant in service and held for future use$22,620,643 $22,448,685 
Accumulated depreciation and amortization(8,069,288)(7,926,575)
Net14,551,355 14,522,110 
Construction work in progress2,036,078 1,829,004 
Palo Verde sale leaseback, net of accumulated depreciation (Note 6)
89,329 90,296 
Intangible assets, net of accumulated amortization260,299 258,725 
Nuclear fuel, net of accumulated amortization112,735 100,119 
Total property, plant and equipment17,049,796 16,800,254 
INVESTMENTS AND OTHER ASSETS  
Nuclear decommissioning trusts (Notes 11 and 12)
1,125,617 1,073,410 
Other special use funds (Notes 11 and 12)
352,877 347,231 
Assets from risk management activities (Note 7)
17,082 44,394 
Other assets44,165 43,344 
Total investments and other assets1,539,741 1,508,379 
CURRENT ASSETS  
Cash and cash equivalents6,648 4,042 
Customer and other receivables438,251 448,880 
Accrued unbilled revenues143,276 164,764 
Allowance for doubtful accounts (Note 2)
(22,112)(23,778)
Materials and supplies (at average cost)425,457 410,481 
Fossil fuel (at average cost)39,571 40,155 
Income tax receivable1,102 1,102 
Assets from risk management activities (Note 7)
15,961 87,704 
Deferred fuel and purchased power regulatory asset (Note 4)
469,962 460,561 
Other regulatory assets (Note 4)