Exhibit 12 FLORIDA POWER CORPORATION Statement of Computation of Ratios (Dollars In millions) Ratio of Earnings to Fixed Charges: Twelve Months Ended Year Ended September 30, December 31, 1997 1996 1996 1995 -------- -------- -------- -------- NET INCOME $ 162.5 $ 238.6 $ 238.4 $ 227.0 Add: Operating Income Taxes 85.7 137.1 135.8 129.5 Other Income Taxes (0.2) (0.2) (0.1) 0.1 --------- --------- --------- --------- Income Before Taxes 248.0 375.5 374.1 356.6 Total Interest Charges 107.4 99.6 98.4 104.5 --------- --------- --------- --------- Total Earnings (A) $ 355.4 $ 475.1 $ 472.5 $ 461.1 Fixed Charges (B) $ 107.4 $ 99.6 $ 98.4 $ 104.5 --------- --------- --------- --------- Ratio of Earnings to Fixed Charges (A/B) 3.31 4.77 4.80 4.41 ========= ========= ========= =========