NSTAR Electric Company and Subsidiary											Exhibit 12
Ratio of Earnings to Fixed Charges
		For the Years Ended December 31,
(Thousands of Dollars)			2014		2013		2012		2011		2010
Earnings, as defined:
	Net income	$	303,088	$	268,546	$	190,242	$	252,494	$	248,575
	Income tax expense		201,981		172,866		123,966		165,686		162,020
	Equity in earnings of regional nuclear   generating and transmission companies		(408)		(550)		(412)		(501)		(836)
	Dividends received from regional equity investees		-		344		286		676		669
	Fixed charges, as below		82,503		73,115		72,364		76,219		77,902
	Less: Interest capitalized (including AFUDC)		(2,027)		(511)		(259)		(185)		(108)
Total earnings, as defined		$	585,137	$	513,810	$	386,187	$	494,389	$	488,222
Fixed charges, as defined:
	Interest on long-term debt (a)	$	77,140	$	79,088	$	87,100	$	90,040	$	90,630
	Interest on rate reduction bonds		-		399		3,585		7,226		11,235
	Other interest (b)		738		(9,104)		(20,631)		(27,839)		(30,475)
	Rental interest factor		2,598		2,221		2,051		6,607		6,404
	Interest capitalized (including AFUDC)		2,027		511		259		185		108
Total fixed charges, as defined		$	82,503	$	73,115	$	72,364	$	76,219	$	77,902
Ratio of Earnings to Fixed Charges			7.09		7.03		5.34		6.49		6.27
(a) Interest on long-term debt includes amortized premiums, discounts and capitalized expenses related to indebtedness.
(b) For the years ended December 31, 2011 and 2010, other interest includes interest related to accounting for uncertain tax positions.