REGULATORY ACCOUNTING (Tables)

12 Months Ended

Dec. 31, 2011

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Regulatory Assets Text Block

NU	As of December 31,
(Millions of Dollars)	2011		2010
Deferred Benefit Costs	$	1,360.5	$	1,094.2
Regulatory Assets Offsetting Derivative Liabilities		939.6		859.7
Securitized Assets		101.8		171.7
Income Taxes, Net		425.4		401.5
Unrecovered Contractual Obligations		100.9		123.2
Regulatory Tracker Deferrals		45.9		70.3
Storm Cost Deferrals		356.0		60.1
Asset Retirement Obligations		47.5		45.3
Losses on Reacquired Debt		24.5		21.5
Deferred Environmental Remediation Costs		38.5		36.8
Deferred Operation and Maintenance Costs		4.0		29.5
Other Regulatory Assets		78.2		81.5
Total Regulatory Assets	$	3,522.8	$	2,995.3
Less: Current Portion	$	255.1	$	238.7
Total Long-Term Regulatory Assets	$	3,267.7	$	2,756.6

	As of December 31,
	2011						2010
(Millions of Dollars)	CL&P		PSNH		WMECO		CL&P		PSNH		WMECO
Deferred Benefit Costs	$	572.8	$	200.0	$	118.9	$	471.8	$	152.6	$	96.0
Regulatory Assets Offsetting Derivative Liabilities		932.0		-		7.3		846.2		12.8		-
Securitized Assets		-		76.4		25.4		-		129.8		41.9
Income Taxes, Net		339.6		38.0		17.8		328.9		31.4		16.8
Unrecovered Contractual Obligations		80.9		-		20.0		97.9		-		25.3
Regulatory Tracker Deferrals		5.5		11.9		22.1		35.5		14.7		15.2
Storm Cost Deferrals		268.3		44.0		43.7		4.0		40.7		15.4
Asset Retirement Obligations		27.9		13.5		3.2		24.9		14.7		3.0
Losses on Reacquired Debt		13.9		9.0		0.3		11.2		8.4		0.4
Deferred Environmental Remediation Costs		-		9.7		-		-		9.7		-
Deferred Operation and Maintenance Costs		4.0		-		-		29.5		-		-
Other Regulatory Assets		29.1		25.6		10.0		29.0		19.6		13.1
Total Regulatory Assets	$	2,274.0	$	428.1	$	268.7	$	1,878.9	$	434.4	$	227.1
Less: Current Portion	$	170.2	$	34.2	$	35.5	$	157.5	$	39.2	$	19.5
Total Long-Term Regulatory Assets	$	2,103.8	$	393.9	$	233.2	$	1,721.4	$	395.2	$	207.6

Schedule Of Regulatory Liabilities Text Block

NU	As of December 31,
(Millions of Dollars)	2011		2010
Cost of Removal	$	172.2	$	194.8
Regulatory Liabilities Offsetting Derivative Assets		-		38.1
Regulatory Tracker Deferrals		139.1		95.1
AFUDC Transmission Incentive		67.0		62.1
Pension Liability - Yankee Gas Acquisition		10.0		12.5
Overrecovered Spent Nuclear Fuel Costs and Contractual Obligations		15.4		14.6
Wholesale Transmission Overcollections		9.6		13.7
Other Regulatory Liabilities		20.6		8.2
Total Regulatory Liabilities	$	433.9	$	439.1
Less: Current Portion	$	167.8	$	99.4
Total Long-Term Regulatory Liabilities	$	266.1	$	339.7

		As of December 31,
		2011								2010
(Millions of Dollars)		CL&P		PSNH		WMECO		CL&P			PSNH		WMECO
Cost of Removal		$	63.8	$	53.2	$	7.2	$	78.6		$	57.3	$	9.5
Regulatory Liabilities Offsetting
	Derivative Assets		-		-		-		38.1			-		-
Regulatory Tracker Deferrals			94.4		17.3		21.3		79.4			6.6		4.8
AFUDC Transmission Incentive			57.7		-		9.3		56.5			-		5.6
Overrecovered Spent Nuclear Fuel Costs and
	Contractual Obligations		15.4		-		-		14.6			-		-
Wholesale Transmission Overcollections			4.5		2.6		9.5		13.7			-		-
Other Regulatory Liabilities			11.8		5.8		2.4		1.2			3.1		3.1
Total Regulatory Liabilities		$	247.6	$	78.9	$	49.7	$	282.1		$	67.0	$	23.0
Less: Current Portion		$	108.3	$	24.5	$	33.1	$	75.7		$	8.4	$	8.0
Total Long-Term Regulatory Liabilities		$	139.3	$	54.4	$	16.6	$	206.4		$	58.6	$	15.0