Ex-12a IDACORP Consolidated Financial Information Supplemental Ratio of Earnings to Fixed Charges Twelve Months Ended December 31, Twelve Months (Thousands of Dollars) Ended March 31, 1994 1995 1996 1997 1998 1999 Earnings, as defined: Income before income taxes.................. $101,775 $127,342 $135,247 $133,570 $133,806 $138,831 Adjust for distributed income of equity investees................................. 326 (2,058) (1,413) (3,943) (4,697) (7,490) Equity in loss of equity method investments............................... 0 0 0 0 458 611 Minority interest in losses of majority owned subs....................... 0 0 0 0 (125) (102) Supplemental fixed charges, as below........ 68,946 72,826 73,018 72,208 72,496 73,073 Total earnings, as defined.............. $171,047 $198,110 $206,852 $201,835 $201,938 $204,923 Fixed charges, as defined: Interest charges............................ $54,433 $56,456 $57,348 $60,761 $60,677 $61,179 Preferred stock dividends of subsidiaries- gross up-Idcrp rate....................... 11,097 12,834 12,079 7,891 8,445 8,391 Rental interest factor...................... 794 925 991 982 801 934 Total fixed charges..................... 66,324 70,215 70,418 69,634 69,923 70,504 Supplemental increment to fixed charges*.... 2,622 2,611 2,600 2,574 2,573 2,569 Total supplemental fixed charges........ $68,946 $72,826 $73,018 $72,208 $72,496 $73,073 Supplemental ratio of earnings to fixed charges. 2.48x 2.72x 2.83x 2.80x 2.79x 2.80x * 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. Exhibit 12-A