Western Massachusetts Electric Company										Exhibit 12
Ratio of Earnings to Fixed Charges
(Thousands of Dollars)
	For the Years Ended December 31,
		2010		2009		2008		2007		2006
Earnings, as defined:
Net income	$	23,090	$	26,196	$	18,330	$	23,604	$	15,644
Income tax expense		16,325		14,923		10,545		14,586		7,766
Equity in (earnings)/losses of regional nuclear
generating companies		(36)		(78)		(101)		(526)		241
Dividends received from regional equity investees		120		419		-		701		372
Fixed charges, as below		23,042		20,614		21,910		22,162		21,087
Less: Interest capitalized (including AFUDC)		(336)		(195)		(1,010)		(983)		(853)
Total earnings, as defined	$	62,205	$	61,879	$	49,674	$	59,544	$	44,257
Fixed charges, as defined:
Interest on long-term debt (a)	$	17,988	$	14,074	$	13,244	$	11,577	$	10,671
Interest on rate reduction bonds		3,372		4,335		5,133		5,839		6,723
Other interest (b)		479		877		1,256		2,430		1,507
Rental interest factor		867		1,133		1,267		1,333		1,333
Interest capitalized (including AFUDC)		336		195		1,010		983		853
Total fixed charges, as defined	$	23,042	$	20,614	$	21,910	$	22,162	$	21,087
Ratio of Earnings to Fixed Charges		2.70		3.00		2.27		2.69		2.10
(a) Interest on long-term debt amounts include 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.