EXHIBIT 12.1 SAN DIEGO GAS & ELECTRIC COMPANY COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS 1990 1991 1992 1993 1994 ---------- ---------- ---------- ---------- ------------ Fixed Charges: Interest: Long-Term Debt $ 97,894 $ 98,802 $100,776 $ 93,402 $ 93,076 Short-Term Debt 12,301 8,234 6,242 7,980 10,322 Amortization of Debt Discount and Expense, Less Premium 2,465 2,471 2,881 4,162 4,604 Interest Portion of Annual Rentals 20,898 18,067 14,677 19,206 21,998 ---------- ---------- ----------- ---------- ---------- Total Fixed Charges 133,558 127,574 124,576 124,750 130,000 ---------- ---------- ----------- ---------- ---------- Preferred Dividends Requirements 10,863 10,535 9,600 8,565 7,663 Ratio of Income Before Tax to Net Income 1.75499 1.63017 1.72369 1.67794 1.90447 ---------- ---------- ----------- ---------- ---------- Preferred Dividends for Purpose of Ratio 19,064 17,174 16,547 14,372 14,594 ---------- ---------- ---------- ---------- ---------- Total Fixed Charges and Preferred Dividends for Purpose of Ratio $152,622 $144,748 $141,123 $139,122 $144,594 ========== ========== ========== ========== ========== Earnings: Net Income (before preferred dividend requirements) $207,841 $208,060 $210,657 $218,715 $143,477 Add: Fixed Charges (from above) 133,558 127,574 124,576 124,750 130,000 Less: Fixed Charges Capitalized 3,306 2,907 2,242 5,789 6,792 Taxes on Income 156,917 131,114 152,451 148,275 129,771 ---------- ---------- ---------- ---------- ----------- Total Earnings for Purpose of Ratio $495,010 $463,841 $485,442 $485,951 $396,456 ========== ========== ========== ========== =========== Ratio of Earnings to Combined Fixed Charges and Preferred Dividends 3.24 3.20 3.44 3.49 2.74 ========== ========== ========== ========== ==========