Long-Term Contractual Arrangements (Tables)

12 Months Ended

Dec. 31, 2012

Notes To Consolidated Financial Statements [Abstract]

Long-term Purchase Commitment [Table Text Block]

B.	Long-Term Contractual Arrangements
Estimated Future Annual Costs: The estimated future annual costs of significant long-term contractual arrangements as of
December 31, 2012 are as follows:
NU
(Millions of Dollars)		2013		2014		2015		2016		2017		Thereafter		Total
Supply and Stranded Cost		$	270.3	$	228.5	$	209.6	$	182.1	$	143.5	$	576.7	$	1,610.7
Renewable Energy			95.2		184.3		185.5		160.2		161.6		1,800.4		2,587.2
Peaker CfDs			75.2		72.6		66.5		63.2		66.5		292.0		636.0
Natural Gas Procurement			138.6		125.5		80.3		69.9		39.0		154.7		608.0
Coal, Wood and Other			110.7		46.3		5.5		5.0		5.0		21.8		194.3
Transmission Support Commitments			27.7		26.7		25.4		21.5		17.3		51.9		170.5
Total		$	717.7	$	683.9	$	572.8	$	501.9	$	432.9	$	2,897.5	$	5,806.7
CL&P
(Millions of Dollars)		2013		2014		2015		2016		2017		Thereafter		Total
Supply and Stranded Cost		$	169.4	$	149.7	$	145.4	$	147.8	$	119.8	$	502.8	$	1,234.9
Renewable Energy			4.2		30.5		30.7		30.9		31.1		356.1		483.5
Peaker CfDs			75.2		72.6		66.5		63.2		66.5		292.0		636.0
Transmission Support Commitments			10.9		10.5		10.0		8.5		6.8		20.4		67.1
Yankee Billings			19.2		18.8		16.1		0.0		0.0		0.0		54.1
Total		$	278.9	$	282.1	$	268.7	$	250.4	$	224.2	$	1,171.3	$	2,475.6
NSTAR Electric
(Millions of Dollars)		2013		2014		2015		2016		2017		Thereafter		Total
Supply and Stranded Cost		$	32.0	$	36.4	$	36.3	$	16.0	$	5.6	$	42.6	$	168.9
Renewable Energy			85.6		84.8		84.9		48.9		48.9		251.8		604.9
Transmission Support Commitments			8.6		8.3		7.9		6.7		5.4		16.2		53.1
Yankee Billings			8.2		8.3		6.6		0.0		0.0		0.0		23.1
Total		$	134.4	$	137.8	$	135.7	$	71.6	$	59.9	$	310.6	$	850.0
PSNH
(Millions of Dollars)		2013		2014		2015		2016		2017		Thereafter		Total
Supply and Stranded Cost		$	68.9	$	42.4	$	27.9	$	18.3	$	18.1	$	31.3	$	206.9
Renewable Energy			5.0		59.8		60.6		70.9		71.9		1,081.9		1,350.1
Coal, Wood and Other			110.7		46.3		5.5		5.0		5.0		21.8		194.3
Transmission Support Commitments			5.9		5.7		5.4		4.5		3.7		11.0		36.2
Yankee Billings			3.6		3.3		2.3		0.0		0.0		0.0		9.2
Total		$	194.1	$	157.5	$	101.7	$	98.7	$	98.7	$	1,146.0	$	1,796.7
WMECO
(Millions of Dollars)		2013		2014		2015		2016		2017		Thereafter		Total
Renewable Energy		$	0.4	$	9.2	$	9.3	$	9.5	$	9.7	$	110.6	$	148.7
Transmission Support Commitments			2.3		2.2		2.1		1.8		1.4		4.3		14.1
Yankee Billings			5.3		5.2		4.4		0.0		0.0		0.0		14.9
Total		$	8.0	$	16.6	$	15.8	$	11.3	$	11.1	$	114.9	$	177.7

NU	For the Years Ended December 31,
(Millions of Dollars)	2012		2011		2010
Supply and Stranded Cost	$	216.8	$	156.0	$	196.2
Renewable Energy		48.7		5.1		5.8
Peaker CfDs		59.3		40.2		10.0
Natural Gas Procurement		243.1		191.7		209.5
Coal, Wood and Other		105.2		113.2		171.1
Transmission Support Commitments		24.8		18.1		18.9

		For the Years Ended December 31,
		2012								2011								2010
				NSTAR								NSTAR								NSTAR
(Millions of Dollars)		CL&P		Electric(1)		PSNH		WMECO		CL&P		Electric(1)		PSNH		WMECO		CL&P		Electric(1)		PSNH		WMECO
Supply and
	Stranded Cost	$	158.2	$	36.3	$	30.5	$	0.9	$	114.9	$	80.9	$	40.8	$	0.3	$	151.3	$	146.3	$	42.6	$	2.3
Renewable Energy			-		60.2		4.1		-		-		61.8		5.1		-		-		52.7		5.8		-
Peaker CfDs			59.3		-		-		-		40.2		-		-		-		10.0		-		-		-
Coal, Wood and Other			-		-		105.2		-		-		-		113.2		-		-		-		171.1		-
Transmission Support
	Commitments		9.6		7.6		5.2		2.0		10.3		8.1		5.6		2.2		10.8		8.5		5.8		2.3