EXHIBIT 12 AEP TEXAS CENTRAL COMPANY AND SUBSIDIARIES Computation of Consolidated Ratios of Earnings to Fixed Charges (in thousands except ratio data) Year Ended December 31, 1998 1999 2000 2001 2002 Earnings: Income Before Extraordinary Item $161,511 $187,718 $189,567 $184,787 $275,941 Plus Federal Income Taxes 126,738 83,508 80,797 174,073 30,102 Plus State Income Taxes - - 3,532 14,849 3,616 Plus Provision for Deferred Income Taxes (8,328) 19,938 16,263 (72,568) 113,655 Plus Deferred Investment Tax Credits (3,858) (5,207) (5,207) (5,207) (5,207) Plus Fixed Charges (as below) 124,807 118,911 132,785 125,194 132,236 Total Earnings $400,870 $404,868 $417,737 $421,128 $550,343 Fixed Charges: Interest on Long-term Debt $ 93,301 $ 87,413 $ 96,212 $ 86,980 $ 99,839* Interest on Short-term Debt 19,506 19,498 22,830 25,023 19,442* Distributions on Trust Preferred Securities 12,000 12,000 11,940 11,208 10,560 Estimated Interest Element in Lease Rentals - - 1,803 1,983 2,395 Fixed Charges $124,807 $118,911 $132,785 $125,194 $132,236 Ratio of Earnings to Fixed Charges 3.21 3.40 3.14 3.36 4.16 * Certain amounts have been reclassified between interest on short-term and long-term debt compared to periods prior to January 1, 2002. This reclassification had no affect on the ratio.