Exhibit 99(f) System Energy Resources, Inc. Computation of Ratios of Earnings to Fixed Charges and Ratios of Earnings to Fixed Charges 12 months 1994 1995 1996 1997 1998 Sept 1999 Fixed charges, as defined: Total Interest $176,504 $151,512 $143,720 $128,653 $116,060 $143,073 Interest applicable to rentals 7,546 6,475 6,223 6,065 5,189 14,379 ----------------------------------------------------------- Total fixed charges, as defined $184,050 $157,987 $149,943 $134,718 $121,249 $157,452 =========================================================== Earnings as defined: Net Income $5,407 $93,039 $98,668 $102,295 $106,476 $86,196 Add: Provision for income taxes: Total 36,838 75,493 82,121 74,654 77,263 55,125 Fixed charges as above 184,050 157,987 149,943 134,718 121,249 157,452 ----------------------------------------------------------- Total earnings, as defined $226,295 $326,519 $330,732 $311,667 $304,988 $298,773 =========================================================== Ratio of earnings to fixed charges, as defined 1.23 2.07 2.21 2.31 2.52 1.90 ===========================================================