Exhibit 12(c) Idaho Power Company Consolidated Financial Information Supplemental Ratio of Earnings to Combined Fixed Charges and Preferred Dividend Requirements Twelve Months Twelve Months Ended December 31, Ended (Thousands of Dollars) September 30, 1990 1991 1992 1993 1994 1995 Computation of Ratio of Earnings to Fixed Charges: Consolidated net income $ 69,241 $ 57,872 $ 59,990 $ 84,464 $ 74,930 $ 85,439 Income taxes: Income taxes (includes amounts charged to other income and deductions) 26,418 24,321 24,601 38,057 35,307 47,505 Investment tax credit adjustment (3,184) (3,177) (1,439) (1,583) (1,064) 253 Total income taxes 23,234 21,144 23,162 36,474 34,243 47,758 Income before income taxes 92,475 79,016 83,152 120,938 109,173 133,197 Fixed Charges: Interest on long-term debt 50,119 54,370 53,408 53,706 51,173 51,154 Amortization of debt discount, expense and premium - net 309 374 392 507 567 567 Interest on short-term bank loans 1,027 935 647 220 1,157 3,030 Other interest 2,259 3,297 1,011 2,023 1,537 1,453 Interest portion of rentals 902 884 683 1,077 794 818 Total fixed charges 54,616 59,860 56,141 57,533 55,228 57,023 Suppl increment to fixed charges* 1,969 1,599 2,487 2,631 2,622 2,614 Supplemental fixed charges 56,585 61,459 58,628 60,164 57,850 59,637 Preferred dividend requirements 5,685 6,663 7,611 8,547 10,682 12,324 Total supplemental fixed charges and preferred dividends 62,270 68,122 66,239 68,711 68,532 71,961 Supplemental earnings - as defined $149,060 $140,475 $141,780 $181,102 $167,023 $192,834 Supplemental ratio of earnings to fixed charges and preferred dividends 2.39X 2.06X 2.14X 2.64X 2.44X 2.68X <F2> * Explanation of increment: Interest on the guaranty of American Falls Reservoir District Bonds and Milner Dam Inc. Notes which are already included in operating expense.