Comparative Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Operating Revenues
Electric Retail Sales	$ 275,616	$ 259,940	$ 492,831	$ 464,686
Electric Wholesale Sales	38,744	28,466	79,658	65,558
California Power Exchange (CPX) Provision for Wholesale Refunds				(2,970)
Gas Revenue	25,020	24,677	82,210	80,458
Other Revenues	30,293	26,030	59,740	50,230
Total Operating Revenues	369,673	339,113	714,439	657,962
Operating Expenses
Fuel	82,563	69,304	154,692	129,909
Purchased Power	66,336	66,591	144,610	149,396
Transmission	3,464	2,878	5,966	5,308
Increase (Decrease) to Reflect PPFAC/PGA Recovery Treatment			(8,000)
Increase (Decrease) to Reflect PPFAC/PGA Recovery Treatment	3,227	(10,313)	(3,008)	(23,058)
Total Fuel and Purchased Energy	155,590	128,460	302,260	261,555
Other Operations and Maintenance	90,052	87,134	191,107	170,042
Depreciation	33,310	32,223	66,100	63,322
Amortization	7,253	7,048	14,631	13,620
Taxes Other Than Income Taxes	12,229	11,952	24,374	24,225
Total Operating Expenses	298,434	266,817	598,472	532,764
Operating Income	71,239	72,296	115,967	125,198
Other Income (Deductions)
Interest Income	826	1,953	1,820	3,880
Other Income	2,646	1,158	5,477	7,137
Other Expense	(813)	(6,138)	(1,417)	(6,903)
Total Other Income (Deductions)	2,659	(3,027)	5,880	4,114
Interest Expense
Long-Term Debt	18,203	15,816	36,296	31,056
Capital Leases	9,931	11,425	19,860	23,509
Other Interest Expense, Net of Interest Capitalized	(109)	186	(1,030)	514
Total Interest Expense	28,025	27,427	55,126	55,079
Income Before Income Taxes	45,873	41,842	66,721	74,233
Income Tax Expense	17,299	15,956	24,731	28,201
Net Income	28,574	25,886	41,990	46,032
Weighted-Average Shares of Common Stock Outstanding (000)	36,950	36,322	36,869	36,215
Basic Earnings Per Share (EPS)	$ 0.77	$ 0.71	$ 1.14	$ 1.27
Diluted EPS	$ 0.71	$ 0.66	$ 1.07	$ 1.18
Dividends Declared per Share	$ 0.42	$ 0.39	$ 0.84	$ 0.78
TEP [Member]
Operating Revenues
Electric Retail Sales	231,652	217,555	405,354	384,974
Electric Wholesale Sales	31,759	29,276	67,015	70,265
California Power Exchange (CPX) Provision for Wholesale Refunds				(2,970)
Other Revenues	31,822	27,864	62,452	53,507
Total Operating Revenues	295,233	274,695	534,821	505,776
Operating Expenses
Fuel	80,831	66,753	152,138	125,260
Purchased Power	26,445	33,337	43,680	57,992
Transmission	1,232	1,049	1,927	1,845
Increase (Decrease) to Reflect PPFAC/PGA Recovery Treatment	2,112	(7,601)	(7,671)	(10,833)
Total Fuel and Purchased Energy	110,620	93,538	190,074	174,264
Other Operations and Maintenance	78,094	74,613	166,587	144,977
Depreciation	25,850	24,893	51,583	48,953
Amortization	8,180	8,024	16,484	15,810
Taxes Other Than Income Taxes	10,043	9,730	19,947	19,681
Total Operating Expenses	232,787	210,798	444,675	403,685
Operating Income	62,446	63,897	90,146	102,091
Other Income (Deductions)
Interest Income	582	1,696	1,317	3,386
Other Income	1,727	1,115	4,367	2,333
Other Expense	(2,498)	(2,397)	(4,996)	(4,883)
Total Other Income (Deductions)	(189)	414	688	836
Interest Expense
Long-Term Debt	12,157	10,154	24,412	20,032
Capital Leases	9,930	11,423	19,859	23,504
Other Interest Expense, Net of Interest Capitalized	(91)	68	(837)	42
Total Interest Expense	21,996	21,645	43,434	43,578
Income Before Income Taxes	40,261	42,666	47,400	59,349
Income Tax Expense	15,133	14,728	17,624	20,953
Net Income	$ 25,128	$ 27,938	$ 29,776	$ 38,396