Exhibit 12.2 Boston Edison Company Computation of Ratio of Earnings to Fixed Charges and Preferred Stock Dividend Requirements Year ended December 31, 1996 (in thousands) Net income from continuing operations $141,546 Income taxes 87,982 Fixed charges 120,359 -------- Total $349,887 ======== Interest expense $109,374 Interest component of rentals 10,985 -------- Subtotal $120,359 -------- Preferred stock dividend requirements 24,862 -------- Total $145,221 ======== Ratio of earnings to fixed charges and preferred stock dividend requirements 2.41 ====