SEGMENT INFORMATION (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Three Months Ended
March 31, 2013			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	584,222	$	3	$	371,863	$	212,356	$	172,627	$	39,729
Energy Costs:
	Fuel for power generation		147,248		-		105,531		41,717		41,717		-
	Purchased power		121,310		-		81,408		39,902		39,902		-
	Gas purchased for resale		37,620		-		-		37,620		-		37,620
	Deferred energy		(79,065)		-		(45,355)		(33,710)		(19,335)		(14,375)
Energy efficiency program costs			9,845		-		7,967		1,878		1,878		-
Total Costs		$	236,958	$	-	$	149,551	$	87,407	$	64,162	$	23,245
Gross Margin		$	347,264	$	3	$	222,312	$	124,949	$	108,465	$	16,484
Other operating expenses			104,672		1,475		67,392		35,805
Maintenance			24,906		-		18,075		6,831
Depreciation and amortization			96,002		-		68,661		27,341
Taxes other than income			16,476		222		9,959		6,295
Operating Income (Loss)		$	105,208	$	(1,694)	$	58,225	$	48,677

Three Months Ended
March 31, 2012			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	611,420	$	4	$	395,688	$	215,728	$	169,806	$	45,922
Energy Costs:
	Fuel for power generation		117,035		-		80,549		36,486		36,486		-
	Purchased power		117,116		-		81,531		35,585		35,585		-
	Gas purchased for resale		31,617		-				31,617		-		31,617
	Deferred energy		(11,739)		-		2,171		(13,910)		(12,670)		(1,240)
Energy efficiency program costs			19,425		-		15,774		3,651		3,651		-
Total Costs		$	273,454	$	-	$	180,025	$	93,429	$	63,052	$	30,377
Gross Margin		$	337,966	$	4	$	215,663	$	122,299	$	106,754	$	15,545
Other operating expenses			103,601		707		66,462		36,432
Maintenance			32,526		-		23,073		9,453
Depreciation and amortization			90,862		-		64,990		25,872
Taxes other than income			14,509		192		8,454		5,863
Operating Income (Loss)		$	96,468	$	(895)	$	52,684	$	44,679