Exhibit 12-A Delmarva Power & Light Company Ratio of Earnings to Fixed Charges ---------------------------------- (Dollars in Thousands) 12 Months Ended Year Ended December 31, June 30, --------------------------------------------------- 2000 1999 1998 1997 1996 1995 ---------- -------- ----------- ---------- --------- --------- Income before extraordinary item $154,477 $142,179 $112,410 $105,709 $116,187 $117,488 ---------- -------- ----------- ---------- --------- --------- Income taxes 99,978 95,321 72,276 72,155 78,340 75,540 ---------- -------- ----------- ---------- --------- --------- Fixed charges: Interest on long-term debt including amortization of discount, premium and expense 76,779 77,790 81,132 78,350 69,329 65,572 Other interest 5,770 6,117 9,328 12,835 12,516 10,353 Preferred dividend require- ments of a subsidiary trust 5,687 5,687 5,688 5,687 1,390 - ---------- -------- ----------- ---------- --------- --------- Total fixed charges 88,236 89,594 96,148 96,872 83,235 75,925 ---------- -------- ----------- ---------- --------- --------- Nonutility capitalized interest - - - (208) (311) (304) ---------- -------- ----------- ---------- --------- --------- Earnings before extraordinary item, income taxes, and fixed charges $342,691 $327,094 $280,834 $274,528 $277,451 $268,649 ========== ========= ========== ========== ========= ========= Ratio of earnings to fixed charges 3.88 3.65 2.92 2.83 3.33 3.54 For purposes of computing the ratio, earnings are income before extraordinary item plus income taxes and fixed charges, less nonutility capitalized interest. Fixed charges consist of interest on long- and short-term debt, amortization of debt discount, premium, and expense, dividends on preferred securities of a subsidiary trust, plus the estimated interest component of rentals.