EXHIBIT 12.1 SAN DIEGO GAS & ELECTRIC COMPANY COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS 1989 1990 1991 1992 1993 ---------- ---------- ---------- ---------- ---------- (Unaudited) Fixed Charges: Interest: Long-Term Debt $ 87,962 $ 97,894 $ 98,802 $100,776 $ 93,402 Short-Term Debt 13,984 12,301 8,234 6,242 7,980 Amortization of Debt Discount and Expense, Less Premium 2,420 2,465 2,471 2,881 4,162 Interest Portion of Annual Rentals 23,664 20,898 18,067 14,677 19,206 ---------- ---------- ---------- ----------- ---------- Total Fixed Charges 128,030 133,558 127,574 124,576 124,750 ---------- ---------- ---------- ----------- ---------- Preferred Dividends Requirements 11,202 10,863 10,535 9,600 8,565 Ratio of Income Before Tax to Net Income 1.79480 1.75499 1.63017 1.72369 1.67794 ---------- ---------- ---------- ----------- ---------- Preferred Dividends for Purpose of Ratio 20,105 19,064 17,174 16,547 14,372 ---------- ---------- ---------- ---------- ---------- Total Fixed Charges and Preferred Dividends for Purpose of Ratio $148,135 $152,622 $144,748 $141,123 $139,122 ========== ========== ========== ========== ========== Earnings: Net Income (before preferred dividend requirements) $179,434 $207,841 $208,060 $210,657 $218,715 Add: Fixed Charges (from above) 128,030 133,558 127,574 124,576 124,750 Less: Fixed Charges Capitalized 3,481 3,306 2,907 2,242 5,789 Taxes on Income 142,614 156,917 131,114 152,451 148,275 ---------- ---------- ---------- ---------- ---------- Total Earnings for Purpose of Ratio $446,597 $495,010 $463,841 $485,442 $485,951 ========== ========== ========== ========== ========== Ratio of Earnings to Combined Fixed Charges and Preferred Dividends 3.01 3.24 3.20 3.44 3.49 ========== ========== ========== ========== ==========