Exhibit 12(f) System Energy Resources, Inc. Computation of Ratios of Earnings to Fixed Charges and Ratios of Earnings to Fixed Charges 1993 1994 1995 1996 1997 1998 Fixed charges, as defined: Total Interest $190,938 $176,504 $151,512 $143,720 $128,653 $116,060 Interest applicable to rentals 6,790 7,546 6,475 6,223 6,065 5,189 ----------------------------------------------------------- Total fixed charges, as defined $197,728 $184,050 $157,987 $149,943 $134,718 $121,249 =========================================================== Earnings as defined: Net Income $93,927 $5,407 $93,039 $98,668 $102,295 $106,476 Add: Provision for income taxes: Total 78,552 36,838 75,493 82,121 74,654 77,263 Fixed charges as above 197,728 184,050 157,987 149,943 134,718 121,249 ----------------------------------------------------------- Total earnings, as defined $370,207 $226,295 $326,519 $330,732 $311,667 $304,988 =========================================================== Ratio of earnings to fixed charges, as defined 1.87 1.23 2.07 2.21 2.31 2.52 ===========================================================