EXHIBIT 12 FLORIDA POWER CORPORATION Statement of Computation of Ratios (Dollars In Millions) Ratio of Earnings to Fixed Charges: 1997 1996 1995 1994 1993 ------ ------ ------ ------ ------ Net Income $135.9 $238.4 $227.0 $200.8 $194.9 Add: Operating Income Taxes 69.9 135.8 129.5 114.7 104.5 Other Income Taxes -- (.1) .1 (.8) (.1) ------- ------- ------- ------- ------- Income Before Taxes 205.8 374.1 356.6 314.7 299.3 Total Interest Charges 117.3 98.4 104.5 108.4 105.8 ------- ------- ------- ------- ------- Total Earnings (A) $323.1 $472.5 $461.1 $423.1 $405.1 ------- ------- ------- ------- ------- Fixed Charges (B) $117.3 $ 98.4 $104.5 $108.4 $105.8 ------- ------- ------- ------- ------- Ratio of Earnings to Fixed Charges (A/B) 2.75 4.80 4.41 3.90 3.83 ======= ======= ======= ======= =======