Western Massachusetts Electric Company

Exhibit 12

Ratio of Earnings to Fixed Charges

(Unaudited)

Three Months

Ended

March 31,

For the Years Ended December 31,

(Thousands of Dollars)

2015

2014

2013

2012

2011

2010

Earnings, as defined:

Net income

$

 13,244 

$

 57,819 

$

 60,438 

$

 54,503 

$

 43,054 

$

 23,090 

Income tax expense

 9,113 

 37,268 

 37,368 

 32,140 

 23,186 

 16,325 

Equity in earnings of regional nuclear
  generating companies

 (2)

 (8)

 (18)

 (11)

 (4)

 (36)

Dividends received from regional equity investees

 -   

 -   

 80 

 -   

 -   

 120 

Fixed charges, as below

 7,157 

 26,202 

 26,316 

 28,162 

 25,079 

 23,042 

Less: Interest capitalized (including AFUDC)

 (232)

 (864)

 (498)

 (534)

 (534)

 (336)

Total earnings, as defined

$

 29,280 

$

 120,417 

$

 123,686 

$

 114,260 

$

 90,781 

$

 62,205 

Fixed charges, as defined:

Interest on long-term debt (a)

$

 6,045 

$

 24,245 

$

 23,625 

$

 23,462 

$

 20,023 

$

 17,988 

Interest on rate reduction bonds

 -   

 -   

 177 

 1,229 

 2,335 

 3,372 

Other interest

 778 

 686 

 1,049 

 1,943 

 1,254 

 479 

Rental interest factor

 102 

 407 

 967 

 994 

 933 

 867 

Interest capitalized (including AFUDC)

 232 

 864 

 498 

 534 

 534 

 336 

Total fixed charges, as defined

$

 7,157 

$

 26,202 

$

 26,316 

$

 28,162 

$

 25,079 

$

 23,042 

Ratio of Earnings to Fixed Charges

 4.09 

 4.60 

 4.70 

 4.06 

 3.62 

 2.70 

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