Allowance for Funds Used During Construction (Tables)

12 Months Ended

Dec. 31, 2015

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Allowance For Funds Used During Construction [Table Text Block]

Eversource	For the Years Ended December 31,
(Millions of Dollars, except percentages)	2015		2014		2013
Borrowed Funds	$	7.2	$	5.8	$	4.1
Equity Funds		18.8		13.7		7.1
Total AFUDC	$	26.0	$	19.5	$	11.2
Average AFUDC Rate		3.9%		3.4%		2.7%

	For the Years Ended December 31,
	2015								2014								2013
(Millions of Dollars,			NSTAR								NSTAR								NSTAR
except percentages)	CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO
Borrowed Funds	$	2.6	$	2.0	$	1.0	$	1.0	$	1.9	$	2.0	$	0.6	$	0.9	$	2.2	$	0.5	$	0.5	$	0.5
Equity Funds		5.2		4.3		1.2		1.7		2.9		3.8		0.6		1.7		2.9		-		0.2		1.0
Total AFUDC	$	7.8	$	6.3	$	2.2	$	2.7	$	4.8	$	5.8	$	1.2	$	2.6	$	5.1	$	0.5	$	0.7	$	1.5
Average AFUDC Rate		5.5%		3.2%		1.8%		4.4%		3.4%		2.5%		1.8%		5.6%		3.7%		0.5%		1.1%		6.1%