REGULATORY ACCOUNTING (Tables)

12 Months Ended

Dec. 31, 2012

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Regulatory Assets Text Block

NU	As of December 31,
(Millions of Dollars)	2012		2011
Benefit Costs	$	2,452.1	$	1,360.5
Regulatory Assets Offsetting Derivative Liabilities		885.6		939.6
Goodwill		537.6		-
Storm Restoration Costs		547.7		356.0
Income Taxes, Net		516.2		425.4
Securitized Assets		232.6		101.8
Contractual Obligations		217.6		100.9
Power Contracts Buy Out Agreements		92.9		8.6
Regulatory Tracker Deferrals		190.1		45.9
Asset Retirement Obligations		88.8		47.5
Other Regulatory Assets		76.2		136.6
Total Regulatory Assets	$	5,837.4	$	3,522.8
Less: Current Portion	$	705.0	$	255.1
Total Long-Term Regulatory Assets	$	5,132.4	$	3,267.7

		As of December 31,
		2012								2011
				NSTAR								NSTAR
(Millions of Dollars)		CL&P		Electric		PSNH		WMECO		CL&P		Electric(1)		PSNH		WMECO
Benefit Costs		$	563.2	$	781.2	$	223.7	$	116.0	$	572.8	$	813.7	$	200.0	$	118.9
Regulatory Assets Offsetting
	Derivative Liabilities		866.2		14.9		-		3.0		932.0		3.4		-		7.3
Goodwill			-		461.5		-		-		-		478.9		-		-
Storm Restoration Costs			413.9		55.8		34.5		43.5		268.3		30.6		44.0		43.7
Income Taxes, Net			367.5		47.1		36.2		31.0		339.6		48.8		38.0		17.8
Securitized Assets			-		205.1		19.7		7.8		-		368.5		76.4		25.4
Contractual Obligations			64.0		22.8		-		14.9		80.9		30.8		-		20.0
Power Contracts Buy Out Agreements			-		85.9		7.0		-		-		109.5		8.6		-
Regulatory Tracker Deferrals			12.2		71.4		49.3		31.9		5.5		61.1		11.9		22.1
Asset Retirement Obligations			29.4		29.4		14.2		3.5		27.9		24.5		13.5		3.2
Other Regulatory Assets			27.9		16.9		29.4		12.6		47.0		34.7		35.7		10.3
Total Regulatory Assets		$	2,344.3	$	1,792.0	$	414.0	$	264.2	$	2,274.0	$	2,004.5	$	428.1	$	268.7
Less: Current Portion		$	185.9	$	347.1	$	62.9	$	42.4	$	170.2	$	323.9	$	34.2	$	35.5
Total Long-Term Regulatory Assets		$	2,158.4	$	1,444.9	$	351.1	$	221.8	$	2,103.8	$	1,680.6	$	393.9	$	233.2

Schedule Of Regulatory Liabilities Text Block

NU	As of December 31,
(Millions of Dollars)	2012		2011
Cost of Removal	$	440.8	$	172.2
Regulatory Tracker Deferrals		95.1		139.1
AFUDC Transmission Incentive		70.0		67.0
Spent Nuclear Fuel Costs and Contractual Obligations		15.4		15.4
Other Regulatory Liabilities		53.0		40.2
Total Regulatory Liabilities	$	674.3	$	433.9
Less: Current Portion	$	134.1	$	167.8
Total Long-Term Regulatory Liabilities	$	540.2	$	266.1

		As of December 31,
		2012										2011
				NSTAR									NSTAR
(Millions of Dollars)		CL&P		Electric		PSNH		WMECO		CL&P			Electric (1)		PSNH		WMECO
Cost of Removal		$	44.2	$	240.3	$	51.2	$	-	$	63.8		$	235.8	$	53.2	$	7.2
Regulatory Tracker Deferrals			39.1		14.4		20.4		13.7		94.4			11.7		17.3		21.3
AFUDC Transmission Incentive			56.6		4.1		-		9.3		57.7			4.3		-		9.3
Spent Nuclear Fuel Costs and
	Contractual Obligations		15.4		-		-		-		15.4			-		-		-
Wholesale Transmission Overcollections			-		-		-		5.3		4.5			-		2.6		9.5
Other Regulatory Liabilities			1.1		32.9		3.8		2.4		11.8			29.7		5.8		2.4
Total Regulatory Liabilities		$	156.4	$	291.7	$	75.4	$	30.7	$	247.6		$	281.5	$	78.9	$	49.7
Less: Current Portion		$	32.1	$	47.5	$	23.0	$	21.0	$	108.3		$	41.6	$	24.5	$	33.1
Total Long-Term Regulatory Liabilities		$	124.3	$	244.2	$	52.4	$	9.7	$	139.3		$	239.9	$	54.4	$	16.6