Western Massachusetts Electric Company

Exhibit 12

Ratio of Earnings to Fixed Charges

(Unaudited)

Nine Months

Ended

September 30,

For the Years Ended December 31,

(Thousands of Dollars)

2015

2014

2013

2012

2011

2010

Earnings, as defined:

Net income

$

 42,410 

$

 57,819 

$

 60,438 

$

 54,503 

$

 43,054 

$

 23,090 

Income tax expense

 28,555 

 37,268 

 37,368 

 32,140 

 23,186 

 16,325 

Equity in earnings of regional nuclear

  generating companies

 (6)

 (8)

 (18)

 (11)

 (4)

 (36)

Dividends received from regional equity investees

 -   

 -   

 80 

 -   

 -   

 120 

Fixed charges, as below

 20,125 

 26,202 

 26,316 

 28,162 

 25,079 

 23,042 

Less: Interest capitalized (including AFUDC)

 (806)

 (864)

 (498)

 (534)

 (534)

 (336)

Total earnings, as defined

$

 90,278 

$

 120,417 

$

 123,686 

$

 114,260 

$

 90,781 

$

 62,205 

Fixed charges, as defined:

Interest Expense

$

 19,014 

$

 24,931 

$

 24,851 

$

 26,634 

$

 23,612 

$

 21,839 

Rental interest factor

 305 

 407 

 967 

 994 

 933 

 867 

Interest capitalized (including AFUDC)

 806 

 864 

 498 

 534 

 534 

 336 

Total fixed charges, as defined

$

 20,125 

$

 26,202 

$

 26,316 

$

 28,162 

$

 25,079 

$

 23,042 

Ratio of Earnings to Fixed Charges

 4.49 

 4.60 

 4.70 

 4.06 

 3.62 

 2.70