Exhibit 12 SOUTH CAROLINA ELECTRIC & GAS COMPANY COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For the Twelve Months Ended March 31, 1994 (Thousands of Dollars) Twelve Months Ended March 31, 1994 Fixed Charges as defined: Interest on long-term debt.............. $ 78,682 Amortization of debt premium, discount and expense (net)...................... 1,748 Interest on debt to affiliate........... 83 Other interest expense.................. 4,089 Interest component of rentals........... 2,934 Total Fixed Charges (A)............. $ 87,536 Earnings, as defined: Income.................................. $154,489 Income taxes............................ 89,277 Total fixed charges above............... 87,536 Total Earnings (B).................. $331,302 Ratio of Earnings to fixed charges (B/A).. 3.78 19