EXHIBIT 12.1 Duquesne Light Company and Subsidiary Calculation of Ratio of Earnings to Fixed Charges (Thousands of Dollars) Year Ended December 31, ------------------------------------------------ 1994 1993 1992 1991 1990 -------- -------- -------- -------- -------- FIXED CHARGES: Interest on long-term debt $ 94,646 $102,938 $119,179 $127,606 $135,850 Other interest 1,095 2,387 1,749 1,773 4,939 Amortization of debt discount, premium and expense-net 6,381 5,541 4,223 3,892 4,039 Portion of lease payments representing an interest factor 44,839 45,925 60,721 64,189 64,586 -------- -------- -------- -------- -------- Total Fixed Charges $146,961 $156,791 $185,872 $197,460 $209,414 -------- -------- -------- -------- -------- EARNINGS: Income from continuing operations $147,449 $144,787 $149,768 $143,133 $135,456 Income taxes 87,897 75,042 107,999 101,073 84,478 Fixed charges as above 146,961 156,791 185,872 197,460 209,414 -------- -------- -------- -------- -------- Total Earnings $382,307 $376,620 $443,639 $441,666 $429,348 -------- -------- -------- -------- -------- RATIO OF EARNINGS TO FIXED CHARGES 2.60 2.40 2.39 2.24 2.05 ======== ======== ======== ======== ======== Duquesne's share of the fixed charges of an unaffiliated coal supplier, which amounted to approximately $3.7 million for the year ended December 31, 1994, has been excluded from the ratio.