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 138.4 238.6 238.4 227.0 Add: Operating Income Taxes 70.5 137.1 135.8 129.5 Other Income Taxes (0.2) (0.2) (0.1) 0.1 --------- --------- --------- --------- Income Before Taxes 208.7 375.5 374.1 356.6 Total Interest Charges 107.4 99.6 98.4 104.5 --------- --------- --------- --------- Total Earnings (A) 316.1 475.1 472.5 461.1 Fixed Charges (B) 107.4 99.6 98.4 104.5 --------- --------- --------- --------- Ratio of Earnings to Fixed Charges (A/B) 2.94 4.77 4.80 4.41 ========= ========= ========= =========