EXHIBIT 12 APPALACHIAN POWER COMPANY Computation of Consolidated Ratio of Earnings to Fixed Charges (in thousands except ratio data) Twelve Months Year Ended December 31, Ended 1993 1994 1995 1996 1997 9/30/98 Fixed Charges: Interest on First Mortgage Bonds. . . . . . . . $ 80,472 $ 75,815 $ 80,777 $ 82,082 $ 81,009 $ 74,898 Interest on Other Long-term Debt. . . . . . . . 16,846 16,415 16,404 18,025 28,163 37,066 Interest on Short-term Debt . . . . . . . . . . 1,615 3,366 5,119 3,639 4,569 4,955 Miscellaneous Interest Charges. . . . . . . . . 2,954 3,913 5,323 7,327 6,857 10,469 Estimated Interest Element in Lease Rentals . . 7,900 7,700 7,000 6,600 6,000 6,000 Total Fixed Charges. . . . . . . . . . . . $109,787 $107,209 $114,623 $117,673 $126,598 $133,388 Earnings: Net Income. . . . . . . . . . . . . . . . . . . $125,132 $102,345 $115,900 $133,689 $120,514 $115,668 Plus Federal Income Taxes . . . . . . . . . . . 51,681 39,599 53,355 65,801 54,835 52,440 Plus State Income Taxes . . . . . . . . . . . . 8,887 5,910 7,273 10,180 8,109 7,480 Plus Fixed Charges (as above) . . . . . . . . . 109,787 107,209 114,623 117,673 126,598 133,388 Total Earnings . . . . . . . . . . . . . . $295,487 $255,063 $291,151 $327,343 $310,056 $308,796 Ratio of Earnings to Fixed Charges. . . . . . . . 2.69 2.37 2.54 2.78 2.44 2.31