<table> EXHIBIT 12.1 SAN DIEGO GAS & ELECTRIC COMPANY COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS (Dollars in millions) <caption> 1998 1999 2000 2001 2002 -------- -------- -------- -------- -------- <s> <c> <c> <c> <c> <c> Fixed Charges and Preferred Stock Dividends: Interest $118 $131 $119 $ 96 $ 83 Interest portion of annual rentals 7 5 3 3 4 -------- -------- -------- -------- -------- Total Fixed Charges 125 136 122 99 87 Preferred Stock Dividends(1) 11 10 13 11 9 -------- -------- -------- -------- -------- Combined Fixed Charges and Preferred Stock Dividends For Purpose of Ratio $136 $146 $135 $110 $ 96 ======== ======== ======== ======== ======== Earnings: Pretax income from continuing operations $332 $325 $295 $324 $300 Total Fixed charges (from above) 125 136 122 99 87 Less: Interest capitalized 1 1 3 1 1 -------- -------- -------- -------- -------- Total Earnings for Purpose of Ratio $456 $460 $414 $422 $386 ======== ======== ======== ======== ======== Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends 3.35 3.15 3.07 3.84 4.02 ======== ======== ======== ======== ======== (1) In computing this ratio, "Preferred dividends" represents the before-tax earnings necessary to pay such dividends, computed at the effective tax rates for the applicable periods. </table>