Exhibit 12a IDACORP, Inc Consolidated Financial Information Supplemental Ratio of Earnings to Fixed Charges Twelve Months Twelve Months Ended December 31, Ended (Thousand of Dollars) June 30, 1994 1995 1996 1997 1998 1999 Earnings, as defined: Income before income taxes $101,775 $127,342 $135,247 $133,570 $133,806 $141,032 Adjust for distributed income of equity investees 326 (2,058) (1,413) (3,943) (4,697) (7,074) Equity in loss of equity method investments 0 0 0 0 458 674 Minority interest in losses of majority owned subsidiaries 0 0 0 0 (125) (143) Supplemental fixed charges, as below 68,946 72,826 73,018 72,208 72,496 73,868 Total earnings, as defined $171,047 $198,110 $206,852 $201,835 $201,938 $208,357 Fixed charges, as defined: Interest charges $ 54,433 $ 56,456 $ 57,348 $ 60,761 $ 60,677 $ 62,017 Preferred stock dividends of subsidiaries-gross up-Idacorp rate 11,097 12,834 12,079 7,891 8,445 8,344 Rental interest factor 794 925 991 982 801 942 Total fixed charges 66,324 70,215 70,418 69,634 69,923 71,303 Supplemental increment to fixed charges* 2,622 2,611 2,600 2,574 2,573 2,565 Total supplemental fixed charges $ 68,946 $ 72,826 $ 73,018 $ 72,208 $ 72,496 $ 73,868 Supplemental ratio of earnings to fixed charges 2.48x 2.72x 2.83x 2.80x 2.79x 2.82x *Explanation of increment - Interest on the guaranty of American Falls Reservoir District bonds and Milner Dam, Inc. notes which are already included in operation expenses