SEGMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Three Months Ended
September 30, 2012			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	1,026,488	$	4	$	802,334	$	224,150	$	212,073	$	12,077
Energy Costs:
	Fuel for power generation		171,316		-		123,992		47,324		47,324		-
	Purchased power		205,686		-		171,687		33,999		33,999		-
	Gas purchased for resale		5,382		-		-		5,382		-		5,382
	Deferred energy		(29,036)		-		(22,685)		(6,351)		(5,498)		(853)
Energy efficiency program costs			32,584		-		28,492		4,092		4,092		-
Total Costs		$	385,932	$	-	$	301,486	$	84,446	$	79,917	$	4,529
Gross Margin		$	640,556	$	4	$	500,848	$	139,704	$	132,156	$	7,548
Other operating expenses			100,108		608		65,372		34,128
Maintenance			19,014		-		12,533		6,481
Depreciation and amortization			94,512		-		66,975		27,537
Taxes other than income			15,682		45		9,743		5,894
Operating Income (Loss)		$	411,240	$	(649)	$	346,225	$	65,664

Nine Months Ended
September 30, 2012			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	2,378,606	$	12	$	1,751,165	$	627,429	$	549,886	$	77,543
Energy Costs:
	Fuel for power generation		400,936		-		285,799		115,137		115,137		-
	Purchased power		486,894		-		388,494		98,400		98,400		-
	Gas purchased for resale		46,491		-		-		46,491		-		46,491
	Deferred energy		(30,285)		-		(15,461)		(14,824)		(13,854)		(970)
Energy efficiency program costs			76,609		-		65,466		11,143		11,143		-
Total Costs		$	980,645	$	-	$	724,298	$	256,347	$	210,826	$	45,521
Gross Margin		$	1,397,961	$	12	$	1,026,867	$	371,082	$	339,060	$	32,022
Other operating expenses			307,080		2,382		200,484		104,214
Maintenance			76,190		-		52,594		23,596
Depreciation and amortization			281,690		-		201,096		80,594
Taxes other than income			44,457		282		26,793		17,382
Operating Income (Loss)		$	688,544	$	(2,652)	$	545,900	$	145,296

Three Months Ended
September 30, 2011			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	1,017,796	$	4	$	798,914	$	218,878	$	202,263	$	16,615
Energy Costs:
	Fuel for power generation		216,779		-		162,976		53,803		53,803		-
	Purchased power		223,348		-		181,733		41,615		41,615		-
	Gas purchased for resale		10,137		-				10,137		-		10,137
	Deferred energy		(33,620)		-		(10,354)		(23,266)		(22,095)		(1,171)
Energy efficiency program costs			23,047		-		20,451		2,596		2,596		-
Total Costs		$	439,691	$	-	$	354,806	$	84,885	$	75,919	$	8,966
Gross Margin		$	578,105	$	4	$	444,108	$	133,993	$	126,344	$	7,649
Other operating expenses			104,598		661		68,004		35,933
Maintenance			11,369		-		3,460		7,909
Depreciation and amortization			93,737		-		67,212		26,525
Taxes other than income			15,205		48		9,105		6,052
Operating Income (Loss)		$	353,196	$	(705)	$	296,327	$	57,574

Nine Months Ended
September 30, 2011			NVE
		Consolidated		NVE Other		NPC Electric		SPPC Total		SPPC Electric		SPPC Gas
Operating Revenues		$	2,333,710	$	11	$	1,662,880	$	670,819	$	545,462	$	125,357
Energy Costs:
	Fuel for power generation		519,920		-		378,790		141,130		141,130		-
	Purchased power		518,672		-		399,707		118,965		118,965		-
	Gas purchased for resale		87,753		-		-		87,753		-		87,753
	Deferred Energy		(43,678)		-		(1,274)		(42,404)		(45,924)		3,520
Energy efficiency program costs			23,047		-		20,451		2,596		2,596		-
Total Costs		$	1,105,714	$	-	$	797,674	$	308,040	$	216,767	$	91,273
Gross Margin		$	1,227,996	$	11	$	865,206	$	362,779	$	328,695	$	34,084
Other operating expenses			308,119		2,243		195,040		110,836
Maintenance			73,317		0		45,122		28,195
Depreciation and amortization			266,445		0		186,798		79,647
Taxes other than income			46,134		250		28,209		17,675
Operating Income (Loss)		$	533,981	$	(2,482)	$	410,037	$	126,426