Western Massachusetts Electric Company												Exhibit 12
Ratio of Earnings to Fixed Charges
(Unaudited)
(Thousands of Dollars)		Nine Months
		Ended	For the Years Ended December 31,
		September 30, 2010		2009		2008		2007		2006		2005
Earnings, as defined:
Net income	$	18,245	$	26,196	$	18,330	$	23,604	$	15,644	$	15,085
Income tax expense		12,645		14,923		10,545		14,586		7,766		9,294
Equity in (earnings)/losses of regional nuclear
generating companies		(28)		(78)		(101)		(526)		241		(311)
Dividends received from regional equity		-		419		-		701		372		103
investees
Fixed charges, as below		17,263		20,614		21,910		22,162		21,087		19,801
Less: Interest capitalized (including AFUDC)		(217)		(195)		(1,010)		(983)		(853)		(455)
Total earnings, as defined	$	47,908	$	61,879	$	49,674	$	59,544	$	44,257	$	43,517
Fixed charges, as defined:
Interest on long-term debt (a)	$	13,298	$	14,074	$	13,244	$	11,577	$	10,671	$	9,535
Interest on rate reduction bonds		2,623		4,335		5,133		5,839		6,723		7,570
Other interest (b)		275		877		1,256		2,430		1,507		1,041
Rental interest factor		850		1,133		1,267		1,333		1,333		1,200
Interest capitalized (including AFUDC)		217		195		1,010		983		853		455
Total fixed charges, as defined	$	17,263	$	20,614	$	21,910	$	22,162	$	21,087	$	19,801
Ratio of Earnings to Fixed Charges		2.78		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 nine months ended September 30, 2010 and for the years ended December 31, 2009 and 2008, other interest includes interest related to accounting for uncertain tax positions.