EXHIBIT 12.1 CENTRAL POWER AND LIGHT COMPANY (CONSOLIDATED) RATIO OF EARNINGS TO FIXED CHARGES FOR THE TWELVE MONTHS ENDED SEPTEMBER 30, 1998 (Thousands Except Ratio) (Unaudited) Operating Income $297,422 Adjustments: Income taxes 69,735 Provision for deferred income taxes 40,865 Deferred investment tax credits (3,859) Other income and deductions 4,959 Allowance for borrowed and equity funds used during construction 2,385 ---------- Earnings $411,507 ========== Fixed Charges: Interest on long-term debt $94,496 Interest on short-term debt and other 22,666 Nuclear Decommissioning Trust 1,978 Distributions on Trust Preferred Securities 12,000 ---------- Fixed Charges $131,140 Ratio of Earnings to Fixed Charges 3.14 ==========