Exhibit 99(f) System Energy Resources, Inc. Computation of Ratios of Earnings to Fixed Charges and Ratios of Earnings to Fixed Charges 12 months 1995 1996 1997 1998 1999 September-00 Fixed charges, as defined: Total Interest $151,512 $143,720 $128,653 $116,060 $147,982 $121,495 Interest applicable to rentals 6,475 6,223 6,065 5,189 3,871 4,502 ------------------------------------------------------------ Total fixed charges, as defined $157,987 $149,943 $134,718 $121,249 $151,853 $125,997 ============================================================ Earnings as defined: Net Income $93,039 $98,668 $102,295 $106,476 $82,375 $99,431 Add: Provision for income taxes: Total 75,493 82,121 74,654 77,263 53,851 79,712 Fixed charges as above 157,987 149,943 134,718 121,249 151,853 125,997 ------------------------------------------------------------ Total earnings, as defined $326,519 $330,732 $311,667 $304,988 $288,079 $305,140 ============================================================ Ratio of earnings to fixed charges, as defined 2.07 2.21 2.31 2.52 1.90 2.42 ============================================================