EXHIBIT 12.1 SAN DIEGO GAS & ELECTRIC COMPANY COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS 1991 1992 1993 1994 1995 ---------- ---------- ---------- ---------- ---------- Fixed Charges: Interest: Long-Term Debt $ 98,000 $99,900 $ 92,596 $ 92,770 $ 95,523 Short-Term Debt 7,429 5,319 7,173 10,015 15,345 Amortization of Debt Discount and Expense, Less Premium 2,471 2,881 4,162 4,604 4,870 Interest Portion of Annual Rentals 18,067 14,563 19,081 21,838 19,371 ---------- ----------- --------- ----------- ---------- Total Fixed Charges 125,967 122,663 123,012 129,227 135,109 ---------- ----------- --------- ----------- ---------- Preferred Dividends Requirements 10,535 9,600 8,565 7,663 7,663 Ratio of Income Before Tax to Net Income 1.61473 1.74291 1.70580 1.94788 1.57657 ----------- ----------- ---------- ---------- ---------- Preferred Dividends for Purpose of Ratio 17,011 16,732 14,610 14,927 12,081 ----------- ----------- ---------- ---------- ---------- Total Fixed Charges and Preferred Dividends for Purpose of Ratio $142,978 $139,395 $137,622 $144,154 $147,190 =========== ========== ========== ========== ========== Earnings: Net Income (before preferred dividend requirements) $208,060 $210,657 $218,715 $143,477 $233,457 Add: Fixed Charges (from above) 125,967 122,663 123,012 129,227 135,109 Less: Fixed Charges Capitalized 2,907 2,407 2,596 2,472 2,785 Taxes on Income 127,900 156,500 154,369 135,999 134,605 ---------- ---------- ---------- ----------- --------- Total Earnings for Purpose of Ratio $459,020 $487,413 $493,500 $406,231 $500,386 ========== ========== ========== =========== ========== Ratio of Earnings to Combined Fixed Charges and Preferred Dividends 3.21 3.50 3.59 2.82 3.40 ========== ========== ========== =========== =========