Exhibit 12

Western Massachusetts Electric Company

Ratio of Earnings to Fixed Charges

(Unaudited)

	Three Months
	Ended
	March 31,			For the Years Ended December 31,
(Thousands of Dollars)	2014			2013			2012			2011			2010			2009
Earnings, as defined:
Net income	$	18,102		$	60,438		$	54,503		$	43,054		$	23,090		$	26,196
Income tax expense	11,558			37,368			32,140			23,186			16,325			14,923
Equity in earnings of regional nuclear generating companies	(2		)	(18		)	(11		)	(4		)	(36		)	(78		)
Dividends received from regional equity investees	—			80			—			—			120			419
Fixed charges, as below	6,103			26,316			28,162			25,079			23,042			20,614
Less: Interest capitalized (including AFUDC)	(215		)	(498		)	(534		)	(534		)	(336		)	(195		)
Total earnings, as defined	$	35,546		$	123,686		$	114,260		$	90,781		$	62,205		$	61,879
Fixed charges, as defined:
Interest on long-term debt (a)	$	6,062		$	23,625		$	23,462		$	20,023		$	17,988		$	14,074
Interest on rate reduction bonds	—			177			1,229			2,335			3,372			4,335
Other interest (b)	(416		)	1,049			1,943			1,254			479			877
Rental interest factor	242			967			994			933			867			1,133
Interest capitalized (including AFUDC)	215			498			534			534			336			195
Total fixed charges, as defined	$	6,103		$	26,316		$	28,162		$	25,079		$	23,042		$	20,614
Ratio of Earnings to Fixed Charges	5.82			4.70			4.06			3.62			2.70			3.00

(a) Interest on long-term debt includes amortized premiums, discounts and capitalized expenses related to indebtedness.

(b) For the years ended December 31, 2009 and 2008, other interest includes interest related to accounting for uncertain tax positions.