Exhibit 12(a) Idaho Power Company Consolidated Financial Information Supplemental Ratio of Earnings to Fixed Charges Twelve Months Twelve Months Ended December 31, Ended (Thousands of Dollars) March 31, 1991 1992 1993 1994 1995 1996 Computation of Ratio of Earnings to Fixed Charges: Consolidated net income $ 57,872 $ 59,990 $ 84,464 $ 74,930 $ 86,921 $ 96,404 Income taxes: Income taxes (includes amounts charged to other income and deductions) 24,321 24,601 38,057 35,307 49,497 53,018 Investment tax credit adjustment (3,177) (1,439) (1,583) (1,064) (1,086) (1,374) Total income taxes 21,144 23,162 36,474 34,243 48,412 51,644 Income before income taxes 79,016 83,152 120,938 109,173 135,333 148,048 Fixed Charges: Interest on long-term debt 54,370 53,408 53,706 51,173 51,146 51,320 Amortization of debt discount, expense and premium - net 374 392 507 567 567 570 Interest on short-term bank loans 935 647 220 1,157 3,144 2,982 Other interest 3,297 1,011 2,023 1,537 1,598 1,726 Interest portion of rentals 884 683 1,077 794 925 994 Total fixed charges 59,860 56,141 57,533 55,228 57,381 57,592 Suppl increment to fixed charges* 1,599 2,487 2,631 2,622 2,611 2,609 Total supplemental fixed charges 61,459 58,628 60,164 57,850 59,992 60,201 Supplemental earnings - as defined $140,475 $141,780 $181,102 $167,023 $195,325 $208,499 Supplemental ratio of earnings to fixed charges 2.29X 2.42X 3.01X 2.89X 3.26X 3.46X <F1> * 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.