EXHIBIT 12.1 THE AES CORPORATION AND SUBSIDIARIES STATEMENT RE: CALCULATIONS OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, unaudited) Nine Months Ended Year Ended December 31, September 30, 1992 1993 1994 1995 1996 1997 ----- ----- ----- ----- ----- -------------- Actual: COMPUTATION OF EARNINGS: Income from continuing operations $ 65 $ 89 $ 142 $ 164 $ 185 $ 182 before income taxes Adjustment for undistributed equity earnings, net of distributions (3) (11) (6) 3 (20) (39) Interest expense 97 125 122 122 138 148 Depreciation of previously capitalized interest 4 4 4 4 4 4 Net amortization of issuance costs 3 3 4 5 6 6 ----- ----- ----- ----- ----- ----- Earnings $ 166 $ 210 $ 266 $ 298 $ 313 $ 301 ===== ===== ===== ===== ===== ===== COMPUTATION OF FIXED CHARGES: Interest expensed and capitalized amounts (including construction related fixed charges) $ 118 $ 127 $ 124 $ 132 $ 165 $ 202 Net amortization of issuance costs (including capitalized amounts) 3 3 4 5 6 6 ----- ----- ----- ----- ----- ----- Fixed charges $ 121 $ 130 $ 128 $ 137 $ 171 $ 208 ===== ===== ===== ===== ===== ===== Ratio of earnings to fixed charges 1.37x 1.62x 2.08x 2.18x 1.83x 1.45x