SEGMENT INFORMATION (Tables)

3 Months Ended

Mar. 31, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

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		$	96,468	$	(895)	$	52,684	$	44,679

Three Months Ended
March 31, 2011			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	640,983	$	4	$	390,068	$	250,911	$	178,617	$	72,294
Energy Costs:
	Fuel for power generation		146,338		-		101,070		45,268		45,268		-
	Purchased power		135,016		-		95,566		39,450		39,450		-
	Gas purchased for resale		52,632		-				52,632		-		52,632
	Deferred energy		(1,952)		-		6,730		(8,682)		(11,931)		3,249
Energy efficiency program costs			0		-		0		0		0		0
Total Costs		$	332,034	$	-	$	203,366	$	128,668	$	72,787	$	55,881
Gross Margin		$	308,949	$	4	$	186,702	$	122,243	$	105,830	$	16,413
Other operating expenses			105,974		657		65,101		40,216
Maintenance			29,762		-		22,337		7,425
Depreciation and amortization			83,102		-		57,673		25,429
Taxes other than income			16,245		163		10,058		6,024
OPERATING INCOME		$	73,866	$	(816)	$	31,533	$	43,149