Western Massachusetts Electric Company												Exhibit 12
Ratio of Earnings to Fixed Charges
(unaudited)
(Thousands of Dollars)		Six Months
		Ended	For the Years Ended December 31,
		June 30, 2010		2009		2008		2007		2006		2005
Earnings, as defined:
Net income	$	10,908	$	26,196	$	18,330	$	23,604	$	15,644	$	15,085
Income tax expense		9,966		14,923		10,545		14,586		7,766		9,294
Equity in (earnings)/losses of regional nuclear
generating companies		(19)		(78)		(101)		(526)		241		(311)
Dividends received from regional
equity investees		-		419		-		701		372		103
Fixed charges, as below		11,263		20,614		21,910		22,162		21,087		19,801
Less: Interest capitalized (including AFUDC)		(95)		(195)		(1,010)		(983)		(853)		(455)
Total earnings, as defined	$	32,023	$	61,879	$	49,674	$	59,544	$	44,257	$	43,517
Fixed charges, as defined:
Interest on long-term debt (a)	$	8,607	$	14,074	$	13,244	$	11,577	$	10,671	$	9,535
Interest on rate reduction bonds		1,811		4,335		5,133		5,839		6,723		7,570
Other interest (b)		183		877		1,256		2,430		1,507		1,041
Rental interest factor		567		1,133		1,267		1,333		1,333		1,200
Interest capitalized (including AFUDC)		95		195		1,010		983		853		455
Total fixed charges, as defined	$	11,263	$	20,614	$	21,910	$	22,162	$	21,087	$	19,801
Ratio of Earnings to Fixed Charges		2.84		3.00		2.27		2.69		2.10		2.20
(a) Interest on long-term debt amounts include amortized premiums, discounts and capitalized expenses related to indebtedness.
(b) For the six months ended June 30, 2010 and for the years ended December 31, 2009 and 2008, other interest includes interest related to accounting for uncertain tax positions.