Exhibit 12.1 Central Power and Light Company Consolidated Ratio of Earnings to Fixed Charges For Years Ended March 31, 2001 Twelve Months Ended 3/31/01 2000 1999 1998 1997 1996 (thousands, except ratios) Operating Income $331,947 $307,098 $293,985 $282,787 $251,319 $281,190 Adjustments Income Taxes 81,721 84,329 83,508 126,738 39,329 47,227 Provision for Deferred Income Taxes 34,159 16,263 19,938 (8,328) 34,458 49,076 Deferred Investment Tax Credits (5,207) (5,207) (5,207) (3,858) (4,819) (5,553) Charges for Investments and Plant Development Costs, Net of Tax - - - - (1,281) (15,569) Other Income and Deductions 8,327 7,235 8,113 709 7,834 3,997 Allowance for Borrowed and Equity Funds Used During Construction 6,926 6,216 4,532 2,822 3,778 1,845 Earnings $457,873 $415,934 $404,869 $400,870 $330,618 $362,213 Fixed Charges: Interest on Long-term Debt $ 95,548 $ 96,212 $ 87,413 $ 93,301 $105,081 $110,375 Interest on Short-term Debt 23,940 22,830 19,498 19,506 20,613 18,494 Distributions on Trust Preferred Securities 11,907 11,940 12,000 12,000 7,533 - Fixed Charges $131,395 $130,982 $118,911 $124,807 $133,227 $128,869 Ratio of Earnings to Fixed Charges 3.48 3.17 3.40 3.21 2.48 2.81