EXHIBIT 12 PPL ENERGY SUPPLY, LLC COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Thousands of Dollars) 12 Months Ended 12 Months December 31, Ended -------------------------------------------------------------------- September 30, 2001 2000 1999 1998 1997 1996 --------- --------- --------- --------- --------- --------- Fixed charges, as defined: Interest on long-term debt ......................... $ 41,132 $ 53,803 $ 19,822 $ 10,762 $ 808 $ 0 Interest on short-term debt and other interest ............................... 49,874 75,231 32,023 14,318 10,728 2,351 Amortization of debt discount, expense and premium - net ................................ 11,098 11,098 568 0 0 0 Interest on capital lease obligations: Charged to expense ............................... 0 0 0 0 0 0 Capitalized ...................................... 0 0 0 0 0 0 Estimated interest component of operating rentals ................................ 18,972 8,742 401 124 158 119 --------- --------- --------- --------- --------- --------- Total fixed charges .......................... $ 121,076 $ 148,874 $ 52,814 $ 25,204 $ 11,694 $ 2,470 ========= ========= ========= ========= ========= ========= Earnings, as defined: Net income(a) ...................................... $ 617,000 $ 245,947 ($ 20,462) $ 12,330 ($ 14,771) ($ 891) Preferred security dividend requirements ..................................... 0 0 0 0 0 0 Less undistributed income of equity method investments ........................ 66,773 74,159 55,539 3,250 (25,282) 8,028 --------- --------- --------- --------- --------- --------- 550,227 171,788 (76,001) 9,080 10,511 (8,919) Add (Deduct): Income taxes ....................................... 319,940 124,528 (29,183) (6,098) (1,613) (478) Amortization of capitalized interest on capital leases ................................ 0 0 0 0 0 0 Total fixed charges as above (excluding capitalized interest on capital lease obligations) .................... 121,076 148,874 52,814 25,204 11,694 2,470 --------- --------- --------- --------- --------- --------- Total earnings ............................... $ 991,243 $ 445,190 ($ 52,370) $ 28,186 $ 20,592 ($ 6,927) ========= ========= ========= ========= ========= ========= Ratio of earnings to fixed charges ............................................ 8.19 2.99 (0.99) 1.12 1.76 (2.80) ========= ========= ========= ========= ========= ========= Deficiency ........................................... $ 0 $ 0 $ 105,184 $ 0 $ 0 $ 9,397 ========= ========= ========= ========= ========= ========= (a) 2000 net income excluding extraordinary items. 1