ILLINOVA CORPORATION STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Thousands of Dollars) Year Ended December 31, Supplemental ** 1991 1992 1993 1993 1994 1995 Earnings Available for Fixed Charges: Net Income (Loss) $78,378 $93,234 ($81,874) ($81,874) $151,786 $151,601 Add: Income Taxes: Current 29,369 22,930 25,260 25,260 58,354 98,578 Deferred - Net 45,990 63,739 82,057 82,057 71,177 34,137 Allocated income taxes (1,348) (6,632) (12,599) (12,599) (8,285) (11,851) Investment tax credit - deferred (11) (519) (782) (782) (11,331) (6,894) Income tax effect of disallowed costs - - (70,638) (70,638) - - Interest on long-term debt 176,179 160,795 154,110 154,110 135,115 125,581 Amortization of debt expense and premium-net, and other interest charges 9,004 12,195 17,007 17,007 15,826 29,558 One-third of all rentals (Estimated to be representative of the interest component4,996 5,117 5,992 5,992 5,847 5,221 Interest on in-core fuel 8,862 8,278 6,174 6,174 7,185 6,716 Disallowed Clinton plant costs - - - 270,956 - - -------- -------- ------- ------- ------ --------- Earnings (loss) available for fixed $351,419 $359,137 $124,707 $395,663 $425,674 $432,647 ======== ======== ======== ======== ======== ======== Fixed charges: Interest on long-term debt $176,179 $160,795 $154,110 $154,110 $135,115 $125,581 Amortization of debt expense and premium-net, and other interest charges 25,553 25,785 27,619 27,619 25,381 38,147 One-third of all rentals (Estimated to be representative of the interest component)4,996 5,117 5,992 5,992 5,847 5,221 ________ ________ ________ ________ ________ ________ Total Fixed Charges $206,728 $191,697 $187,721 $187,721 $166,343 $168,949 ======== ======== ======== ======== ======== ======== Ratio of earnings to fixed charges 1.70 1.87 0.66 * 2.11 2.56 2.56 ======== ======== ======== ======== ======== ======== * Earnings are inadequate to cover fixed charges. Additional earnings (thousands) of $63,014 for 1993, are required to attain a one-to-one ratio of Earnings to Fixed Charges. ** Supplemental ratio of earnings to fixed charges presented to exclude nonrecurring item - Disallowed Clinton plant costs.