Exhibit 12.1 		 Boston Edison Company Computation of Ratio of Earnings to Fixed Charges Twelve Months Ended June 30, 1994 (in thousands) Net income from continuing operations $123,731 Income taxes 49,950 Fixed charges 122,751 -------- Total $296,432 ======== Interest expense $115,525 Interest component of rentals 7,226 -------- Total $122,751 ======== Ratio of earnings to fixed charges 2.41 ======== 13