CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 10,471	$ 9,526
Customer and other receivables	391,179	299,904
Accrued unbilled revenues	156,036	96,796
Allowance for doubtful accounts	(3,462)	(3,203)
Materials and supplies (at average cost)	230,220	221,682
Fossil fuel (at average cost)	32,836	38,028
Deferred income taxes	61,201	91,152
Income tax receivable (Note 5)	0	135,517
Assets from risk management activities (Note 7)	11,863	17,169
Deferred fuel and purchased power regulatory asset (Note 3)	15,911	20,755
Other regulatory assets (Note 3)	94,004	76,388
Other current assets	40,673	39,895
Total current assets	1,040,932	1,043,609
INVESTMENTS AND OTHER ASSETS
Assets from risk management activities (Note 7)	17,438	23,815
Nuclear decommissioning trust (Note 13)	690,226	642,007
Other assets	60,427	60,875
Total investments and other assets	768,091	726,697
PROPERTY, PLANT AND EQUIPMENT
Plant in service and held for future use	15,251,009	15,200,464
Accumulated depreciation and amortization	(5,308,661)	(5,300,219)
Net	9,942,348	9,900,245
Construction work in progress	673,265	581,369
Palo Verde sale leaseback, net of accumulated depreciation (Note 6)	122,222	125,125
Intangible assets, net of accumulated amortization	127,560	157,689
Nuclear fuel, net of accumulated amortization	138,179	124,557
Total property, plant and equipment	11,003,574	10,888,985
DEFERRED DEBITS
Regulatory assets (Note 3)	836,618	711,712
Assets for other postretirement benefits (Note 4)	180,527	0
Other	150,606	137,683
Total deferred debits	1,167,751	849,395
TOTAL ASSETS	13,980,348	13,508,686
CURRENT LIABILITIES
Accounts payable	278,835	284,516
Accrued taxes (Note 5)	249,932	130,998
Accrued interest	41,289	48,351
Common dividends payable	0	62,528
Short-term borrowings (Note 2)	19,150	153,125
Current maturities of long-term debt (Note 2)	368,841	540,424
Customer deposits	73,468	76,101
Liabilities from risk management activities (Note 7)	27,622	31,892
Liabilities for asset retirements	39,416	32,896
Regulatory liabilities (Note 3)	154,027	99,273
Other current liabilities	195,938	158,540
Total current liabilities	1,448,518	1,618,644
LONG-TERM DEBT LESS CURRENT MATURITIES (Note 2)	3,037,801	2,796,465
DEFERRED CREDITS AND OTHER
Deferred income taxes	2,505,150	2,351,882
Regulatory liabilities (Note 3)	1,034,515	801,297
Liabilities for asset retirements (Note 16)	350,211	313,833
Liabilities for pension and other postretirement benefits (Note 4)	233,292	513,628
Liabilities from risk management activities (Note 7)	24,385	70,315
Customer advances	123,136	114,480
Coal mine reclamation	209,695	207,453
Deferred investment tax credit	177,567	152,361
Unrecognized tax benefits (Note 5)	14,601	42,209
Other	177,464	185,659
Total deferred credits and other	4,850,016	4,753,117
COMMITMENTS AND CONTINGENCIES (SEE NOTES)
EQUITY (Note 8)
Common stock, no par value; authorized 150,000,000 shares, 110,468,956 and 110,280,703 issued at respective dates	2,502,217	2,491,558
Treasury stock at cost; 22,293 and 98,944 shares at respective dates	(106)	(4,308)
Total common stock	2,502,111	2,487,250
Retained earnings	2,052,207	1,785,273
Accumulated other comprehensive loss:
Pension and other postretirement benefits	(49,881)	(54,995)
Derivative instruments	(12,521)	(23,058)
Total accumulated other comprehensive loss	(62,402)	(78,053)
Total shareholders’ equity	4,491,916	4,194,470
Noncontrolling interests (Note 6)	152,097	145,990
Total equity	4,644,013	4,340,460
TOTAL LIABILITIES AND EQUITY	13,980,348	13,508,686
Arizona Public Service Company
CURRENT ASSETS
Cash and cash equivalents	5,155	3,725
Customer and other receivables	391,002	299,055
Accrued unbilled revenues	156,036	96,796
Allowance for doubtful accounts	(3,462)	(3,203)
Materials and supplies (at average cost)	230,220	221,682
Fossil fuel (at average cost)	32,836	38,028
Income tax receivable (Note 5)	0	135,179
Assets from risk management activities (Note 7)	11,863	17,169
Deferred fuel and purchased power regulatory asset (Note 3)	15,911	20,755
Other regulatory assets (Note 3)	94,004	76,388
Deferred income taxes	54,746	0
Other current assets	40,078	39,153
Total current assets	1,028,389	944,727
INVESTMENTS AND OTHER ASSETS
Assets from risk management activities (Note 7)	17,438	23,815
Nuclear decommissioning trust (Note 13)	690,226	642,007
Other assets	33,370	33,709
Total investments and other assets	741,034	699,531
PROPERTY, PLANT AND EQUIPMENT
Plant in service and held for future use	15,247,757	15,196,598
Accumulated depreciation and amortization	(5,305,566)	(5,296,501)
Net	9,942,191	9,900,097
Construction work in progress	673,265	581,369
Palo Verde sale leaseback, net of accumulated depreciation (Note 6)	122,222	125,125
Intangible assets, net of accumulated amortization	127,405	157,534
Nuclear fuel, net of accumulated amortization	138,179	124,557
Total property, plant and equipment	11,003,262	10,888,682
DEFERRED DEBITS
Regulatory assets (Note 3)	836,618	711,712
Assets for other postretirement benefits (Note 4)	177,455	0
Unamortized debt issue costs	24,599	21,860
Other	124,654	114,865
Total deferred debits	1,163,326	848,437
TOTAL ASSETS	13,936,011	13,381,377
CURRENT LIABILITIES
Accounts payable	272,672	281,237
Accrued taxes (Note 5)	300,646	122,460
Accrued interest	41,014	48,132
Common dividends payable	0	62,500
Short-term borrowings (Note 2)	19,150	153,125
Current maturities of long-term debt (Note 2)	368,841	540,424
Customer deposits	73,468	76,101
Deferred income taxes	0	2,033
Liabilities from risk management activities (Note 7)	27,622	31,892
Liabilities for asset retirements	39,416	32,896
Regulatory liabilities (Note 3)	154,027	99,273
Other current liabilities	174,950	130,774
Total current liabilities	1,471,806	1,580,847
DEFERRED CREDITS AND OTHER
Deferred income taxes	2,494,946	2,347,724
Regulatory liabilities (Note 3)	1,034,515	801,297
Liabilities for asset retirements (Note 16)	350,211	313,833
Liabilities for pension and other postretirement benefits (Note 4)	203,887	476,017
Liabilities from risk management activities (Note 7)	24,385	70,315
Customer advances	123,136	114,480
Coal mine reclamation	209,695	207,453
Deferred investment tax credit	177,567	152,361
Unrecognized tax benefits (Note 5)	44,559	42,209
Other	136,782	148,502
Total deferred credits and other	4,799,683	4,674,191
COMMITMENTS AND CONTINGENCIES (SEE NOTES)
EQUITY (Note 8)
Total common stock	178,162	178,162
Additional paid-in capital	2,379,696	2,379,696
Retained earnings	2,084,582	1,804,398
Accumulated other comprehensive loss:
Pension and other postretirement benefits	(30,295)	(30,313)
Derivative instruments	(12,521)	(23,059)
Total accumulated other comprehensive loss	(42,816)	(53,372)
Total shareholders’ equity	4,599,624	4,308,884
Noncontrolling interests (Note 6)	152,097	145,990
Total equity	4,751,721	4,454,874
Long-term debt less current maturities (Note 2)	2,912,801	2,671,465
Total capitalization	7,664,522	7,126,339
TOTAL LIABILITIES AND EQUITY	$ 13,936,011	$ 13,381,377