FORM 10-Q Exhibit 12 TAMPA ELECTRIC COMPANY RATIO OF EARNINGS TO FIXED CHARGES The following table sets forth the company's ratio of earnings to fixed charges for the periods indicated. Nine Months Twelve Months Ended Ended Year Ended December 31,(1) Sept. 30, 1997 Sept. 30, 1997 1996 1995 1994(2) 1993(3) 1992 4.78x 4.59x 4.40x 4.28x 3.88x 3.81x 3.92x For the purposes of calculating this ratio, earnings consist of income before income taxes and fixed charges. Fixed charges consist of interest on indebtedness, amortization of debt premium, the i n t e r est component of rentals and preferred stock dividend requirements. (1) Prior year amounts have been restated to reflect the merger of Peoples Gas System, Inc. with and into Tampa Electric Company. (2) Includes the effect of a $21.3-million pretax restructuring charge. The effect of this charge was to reduce the ratio of earnings to fixed charges. Had this non-recurring charge been excluded from the calculation, the ratio of earnings to fixed charges would have been 4.23x for the period ended Dec. 31, 1994. (3) Includes the effect of the non-recurring $10-million pretax charge associated with a coal pricing settlement. The effect of this charge was to reduce the ratio of earnings to fixed charges. Had this non-recurring charge been excluded from the calculation, the ratio of earnings to fixed charges would have been 3.97x for the year ended Dec. 31, 1993. - 16 -