Long-Term Contractual Arrangements (Tables)

12 Months Ended

Dec. 31, 2015

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, 2015 are as follows:
Eversource
(Millions of Dollars)		2016		2017		2018		2019		2020		Thereafter		Total
Supply and Stranded Cost		$	177.4	$	110.1	$	81.5	$	51.1	$	34.9	$	80.6	$	535.6
Renewable Energy			246.6		273.3		238.3		237.4		237.0		2,174.7		3,407.3
Peaker CfDs			55.8		41.1		20.4		7.8		4.0		3.6		132.7
Natural Gas Procurement			137.9		123.8		78.4		57.8		46.9		99.7		544.5
Coal, Wood and Other			45.4		23.3		3.4		1.9		1.9		13.1		89.0
Transmission Support Commitments			21.4		19.0		20.3		20.2		20.2		-		101.1
Total		$	684.5	$	590.6	$	442.3	$	376.2	$	344.9	$	2,371.7	$	4,810.2
CL&P
(Millions of Dollars)		2016		2017		2018		2019		2020		Thereafter		Total
Supply and Stranded Cost		$	145.0	$	87.2	$	58.2	$	38.0	$	29.3	$	47.6	$	405.3
Renewable Energy			70.1		71.7		72.1		72.3		72.4		649.7		1,008.3
Peaker CfDs			55.8		41.1		20.4		7.8		4.0		3.6		132.7
Transmission Support Commitments			8.4		7.5		8.0		8.0		8.0		-		39.9
Yankee Companies Billings			0.1		0.4		0.8		0.8		0.8		10.7		13.6
Total		$	279.4	$	207.9	$	159.5	$	126.9	$	114.5	$	711.6	$	1,599.8
NSTAR Electric
(Millions of Dollars)		2016		2017		2018		2019		2020		Thereafter		Total
Supply and Stranded Cost		$	14.1	$	4.8	$	5.5	$	5.5	$	3.1	$	28.1	$	61.1
Renewable Energy			99.0		117.0		80.4		78.5		76.6		489.8		941.3
Transmission Support Commitments			6.6		5.9		6.3		6.2		6.2		-		31.2
Yankee Companies Billings			0.1		0.2		0.3		0.3		0.3		3.6		4.8
Total		$	119.8	$	127.9	$	92.5	$	90.5	$	86.2	$	521.5	$	1,038.4
PSNH
(Millions of Dollars)		2016		2017		2018		2019		2020		Thereafter		Total
Supply and Stranded Cost		$	18.3	$	18.1	$	17.8	$	7.6	$	2.5	$	4.9	$	69.2
Renewable Energy			67.9		69.0		70.1		70.7		72.0		860.4		1,210.1
Coal, Wood and Other			45.4		23.3		3.4		1.9		1.9		13.1		89.0
Transmission Support Commitments			4.6		4.0		4.3		4.3		4.3		-		21.5
Yankee Companies Billings			0.1		0.2		0.3		0.3		0.3		4.2		5.4
Total		$	136.3	$	114.6	$	95.9	$	84.8	$	81.0	$	882.6	$	1,395.2
WMECO
(Millions of Dollars)		2016		2017		2018		2019		2020		Thereafter		Total
Renewable Energy		$	9.6	$	15.6	$	15.7	$	15.9	$	16.0	$	174.8	$	247.6
Transmission Support Commitments			1.8		1.6		1.7		1.7		1.7		-		8.5
Yankee Companies Billings			-		0.1		0.2		0.2		0.2		2.7		3.4
Total		$	11.4	$	17.3	$	17.6	$	17.8	$	17.9	$	177.5	$	259.5

Eversource	For the Years Ended December 31,
(Millions of Dollars)	2015		2014		2013
Supply and Stranded Cost	$	147.6	$	99.2	$	141.0
Renewable Energy		144.3		114.4		91.3
Peaker CfDs		42.7		18.1		51.9
Natural Gas Procurement		428.6		482.5		349.8
Coal, Wood and Other		95.9		120.5		112.6
Transmission Support Commitments		25.3		25.0		24.9

	For the Years Ended December 31,
	2015								2014								2013
			NSTAR								NSTAR								NSTAR
(Millions of Dollars)	CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO
Supply and Stranded Cost	$	120.3	$	6.5	$	20.8	$	-	$	63.0	$	7.0	$	26.0	$	3.2	$	77.6	$	32.4	$	29.0	$	2.0
Renewable Energy		20.0		86.7		37.2		0.4		0.7		87.4		26.3		-		-		84.9		6.4		-
Peaker CfDs		42.7		-		-		-		18.1		-		-		-		51.9		-		-		-
Coal, Wood and Other		-		-		95.9		-		-		-		120.5		-		-		-		112.6		-
Transmission Support Commitments		10.0		7.8		5.4		2.1		9.9		7.7		5.3		2.1		9.8		7.7		5.3		2.1