1 EXHIBIT 12 THE WASHINGTON WATER POWER COMPANY Computation of Ratio of Earnings to Fixed Charges and Preferred Dividend Requirements (1) Consolidated (Thousands of Dollars) 12 Mos. Ended Years Ended December 31 March 31, -------------------------------------------------- 1996 1995 1994 1993 1992 -------- -------- -------- -------- -------- Fixed charges, as defined: Interest on long-term debt $ 56,263 $ 55,580 $ 49,566 $ 47,129 $ 51,727 Amortization of debt expense and premium - net 3,334 3,441 3,511 3,004 1,814 Interest portion of rentals 4,204 3,962 1,282 924 1,105 -------- -------- -------- -------- -------- Total fixed charges $ 63,801 $ 62,983 $ 54,359 $ 51,057 $ 54,646 ======== ======== ======== ======== ======== Earnings, as defined: Net income from continuing ops $100,576 $ 87,121 $ 77,197 $ 82,776 $ 72,267 Add (deduct): Income tax expense 61,669 52,416 44,696 42,503 41,330 Total fixed charges above 63,801 62,983 54,359 51,057 54,646 -------- -------- -------- -------- -------- Total earnings $226,046 $202,520 $176,252 $176,336 $168,243 ======== ======== ======== ======== ======== Ratio of earnings to fixed charges 3.54 3.22 3.24 3.45 3.08 Fixed charges and preferred dividend requirements: Fixed charges above $ 63,801 $ 62,983 $ 54,359 $ 51,057 $ 54,646 Preferred dividend requirements (2) 14,665 14,612 13,668 12,615 10,716 -------- -------- -------- -------- -------- Total $ 78,466 $ 77,595 $ 68,027 $ 63,672 $ 65,362 ======== ======== ======== ======== ======== Ratio of earnings to fixed charges and preferred dividend requirements 2.88 2.61 2.59 2.77 2.57 (1) Calculations have been restated to reflect the results from continuing operations (ie. excluding discontinued coal mining operations). (2) Preferred dividend requirements have been grossed up to their pre-tax level.