17 Exhibit 12.2 Boston Edison Company Computation of Ratio of Earnings to Fixed Charges and Preferred Stock Dividend Requirements Twelve Months Ended June 30, 1995 (in thousands) Net income from continuing operations $127,567 Income taxes 60,540 Fixed charges 128,055 -------- Total $316,162 ======== Interest expense $118,169 Interest component of rentals 9,886 -------- Subtotal 128,055 -------- Preferred stock dividend requirements 23,933 -------- Total $151,988 ======== Ratio of earnings to fixed charges and preferred stock dividend requirements 2.08 ====