Exhibit 12.1 Boston Edison Company Computation of Ratio of Earnings to Fixed Charges Year ended December 31, 1994 (in thousands) Net income from continuing operations $125,022 Income taxes 57,114 Fixed charges 125,515 -------- Total $307,651 ======== Interest expense $114,937 Interest component of rentals 10,578 -------- Total $125,515 ======== Ratio of earnings to fixed charges 2.45 ====