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DERIVATIVE INSTRUMENTS (Tables)

6 Months Ended

Jun. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value Text Block

		As of June 30, 2012
			Commodity				Net Amount
			Supply and				Recorded as
			Price Risk		Collateral		Derivative
(Millions of Dollars)			Management		and Netting ⁽¹⁾		Asset/(Liability)⁽²⁾
Current Derivative Assets:
Level 2:
	PSNH		$	1.0	$	-	$	1.0
Level 3:
	CL&P			18.1		(12.1)		6.0
	Other			5.8		-		5.8
Total Current Derivative Assets			$	24.9	$	(12.1)	$	12.8

Long-Term Derivative Assets:
Level 2:
	Other		$	0.5	$	(0.1)	$	0.4
Level 3:
	CL&P			167.2		(76.1)		91.1
	Other			2.1		-		2.1
Total Long-Term Derivative Assets			$	169.8	$	(76.2)	$	93.6

Current Derivative Liabilities:
Level 2:
	Other		$	(18.5)	$	4.6	$	(13.9)
Level 3:
	CL&P			(97.7)		-		(97.7)
	NSTAR Electric			(0.7)		-		(0.7)
	WMECO			(0.9)		-		(0.9)
Total Current Derivative Liabilities			$	(117.8)	$	4.6	$	(113.2)

Long-Term Derivative Liabilities:
Level 2:
	Other		$	(8.8)	$	-	$	(8.8)
Level 3:
	CL&P			(910.1)		-		(910.1)
	NSTAR Electric			(15.1)		-		(15.1)
	WMECO			(12.6)		-		(12.6)
Total Long-Term Derivative Liabilities			$	(946.6)	$	-	$	(946.6)

		As of December 31, 2011

			Commodity				Net Amount
			Supply and				Recorded as
			Price Risk		Collateral		Derivative
(Millions of Dollars)			Management		and Netting⁽¹⁾		Asset/(Liability)⁽²⁾
Current Derivative Assets:
Level 3:
	CL&P		$	17.9	$	(11.6)	$	6.3
	Other			4.7		-		4.7
Total Current Derivative Assets⁽³⁾			$	22.6	$	(11.6)	$	11.0

Long-Term Derivative Assets:
Level 3:
	CL&P		$	174.2	$	(80.4)	$	93.8
	Other			4.6		-		4.6
Total Long-Term Derivative Assets			$	178.8	$	(80.4)	$	98.4

Current Derivative Liabilities:
Level 3:
	CL&P		$	(95.9)	$	-	$	(95.9)
	WMECO			(0.1)		-		(0.1)
	Other			(16.1)		4.5		(11.6)
Total Current Derivative Liabilities			$	(112.1)	$	4.5	$	(107.6)

Long-Term Derivative Liabilities:
Level 3:
	CL&P		$	(935.8)	$	-	$	(935.8)
	WMECO			(7.2)		-		(7.2)
	Other			(17.3)		0.4		(16.9)
Total Long-Term Derivative Liabilities⁽⁴⁾			$	(960.3)	$	0.4	$	(959.9)

Schedule Of Derivative Instruments Gain Loss In Statement Of Financial Performance Text Block

Amounts Recognized on Derivative

Location of Amount

For the Three Months Ended

For the Six Months Ended

Recognized on Derivative

June 30, 2012

June 30, 2011

June 30, 2012

June 30, 2011

(Millions of Dollars)

Balance Sheet:

Regulatory Assets

(40.8)

(14.7)

(33.5)

(45.2)

Statement of Income:

Purchased Power, Fuel and Transmission

(0.2)

0.5

(1.0)

0.8

Schedule Of Credit Risk Contingent Features [Table Text Block]

As of June 30, 2012

As of December 31, 2011

Additional Standby

Fair Value

LOCs Required if

Fair Value

LOCs Required if

Subject to Credit

Cash

Downgraded

Subject to Credit

Cash

Downgraded

Risk Contingent

Collateral

Below Investment

Risk Contingent

Collateral

Below Investment

(Millions of Dollars)

Features

Posted

Grade

Features

Posted

Grade

(21.1)

4.3

17.3

(23.5)

4.1

19.9

Rollforward Of Net Derivative Asset Liabilities Valued Using Unobservable Inputs

		For the Three Months Ended				For the Six Months Ended
		June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
(Millions of Dollars)		NU		NU		NU		NU
Derivatives, Net:
Fair Value as of Beginning of Period		$	(901.5)	$	(872.7)	$	(962.2)	$	(840.2)
Increase due to Merger with NSTAR			(5.4)		-		(5.4)		-
Transfer to Level 2			-		-		32.2		-
Net Realized/Unrealized Gains/(Losses) Included in:
	Net Income⁽²⁾		(0.7)		0.5		7.4		0.8
	Regulatory Assets		(42.6)		(13.9)		(35.4)		(45.2)
Settlements			18.1		(0.1)		31.3		(1.6)
Fair Value as of End of Period		$	(932.1)	$	(886.2)	$	(932.1)	$	(886.2)

		For the Three Months Ended
		June 30, 2012						June 30, 2011
(Millions of Dollars)		CL&P		NSTAR Electric		WMECO		CL&P		NSTAR Electric⁽¹⁾
Derivatives, Net:
Fair Value as of Beginning of Period		$	(899.6)	$	(5.4)	$	(12.3)	$	(842.6)	$	(2.1)
Net Realized/Unrealized Gains/(Losses)
	Included in Regulatory Assets		(31.8)		(9.6)		(1.2)		(13.9)		1.9
Settlements			20.7		(0.8)		-		(2.2)		(0.8)
Fair Value as of End of Period		$	(910.7)	$	(15.8)	$	(13.5)	$	(858.7)	$	(1.0)

		For the Six Months Ended
		June 30, 2012						June 30, 2011
(Millions of Dollars)		CL&P		NSTAR Electric⁽¹⁾		WMECO		CL&P		NSTAR Electric⁽¹⁾
Derivatives, Net:
Fair Value as of Beginning of Period		$	(931.6)	$	(3.4)	$	(7.3)	$	(806.1)	$	(2.4)
Net Realized/Unrealized Gains/(Losses)
	Included in Regulatory Assets		(21.0)		(10.2)		(6.2)		(45.1)		3.0
Settlements			41.9		(2.2)		-		(7.5)		(1.6)
Fair Value as of End of Period		$	(910.7)	$	(15.8)	$	(13.5)	$	(858.7)	$	(1.0)

FairValueInputsLiabilitiesQuantitativeInformationTableTextBlock

	Range	Period Covered
Energy Prices:
NU	$41 - $78 per MWh	2017 - 2027
CL&P	$47 - $52 per MWh	2017 - 2020
WMECO	$41 - $78 per MWh	2017 - 2027

Capacity Prices:
NU	$1.40 - $10.18 per kW-Month	2016 - 2027
CL&P	$1.40 - $9.51 per kW-Month	2016 - 2026
NSTAR Electric	$1.40 - $10.18 per kW-Month	2016 - 2027
WMECO	$1.40 - $10.18 per kW-Month	2016 - 2027

Forward Reserve:
NU, CL&P	$0.50 per kW-Month	2012 - 2024

REC Prices:
NU	$25 - $84 per REC	2012 - 2027
NSTAR Electric	$25 - $60 per REC	2012 - 2017
WMECO	$25 - $84 per REC	2012 - 2027

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

+ References+ Details

- Definition

Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.

+ References+ Details