EXHIBIT 12 OHIO POWER COMPANY Computation of Consolidated Ratios of Earnings to Fixed Charges (in thousands except ratio data) Twelve Months Year Ended December 31, Ended 1997 1998 1999 2000 2001 6/30/02 Fixed Charges: Interest on First Mortgage Bonds $ 45,540 $ 33,663 $ 25,506 $ 22,901 $ 19,898 $ 13,324 Interest on Other Long-term Debt 29,620 38,520 49,125 58,605 61,960 69,842 Interest on Short-term Debt 4,519 5,821 8,327 8,614 14,628 10,727 Miscellaneous Interest Charges 4,464 4,617 5,016 34,417 4,806 4,257 Estimated Interest Element in Lease Rentals 52,900 59,300 53,400 51,600 48,200 48,200 Total Fixed Charges $137,043 $141,921 $141,374 $176,137 $149,492 $146,350 Earnings: Income Before Extraordinary Item $208,689 $209,925 $212,157 $102,613 $165,793 $199,701 Plus Federal Income Taxes 121,559 112,087 130,814 208,737 83,990 98,907 Plus State Income Taxes 2,655 2,742 1,677 (3,058) 15,003 21,264 Plus Fixed Charges (as above) 137,043 141,921 141,374 176,137 149,492 146,350 Total Earnings $469,946 $466,675 $486,022 $484,429 $414,278 $466,222 Ratio of Earnings to Fixed Charges 3.42 3.28 3.43 2.75 2.77 3.18