Exhibit 12(f) System Energy Resources, Inc. Computation of Ratios of Earnings to Fixed Charges and Ratios of Earnings to Fixed Charges 1998 1999 2000 2001 2002 Fixed charges, as defined: Total Interest $116,060 $147,982 $118,519 $138,018 $76,639 Interest applicable to rentals 5,189 3,871 5,753 4,458 3,250 ----------------------------------------------- Total fixed charges, as defined $121,249 $151,853 $124,272 $142,476 $79,889 =============================================== Earnings as defined: Net Income $106,476 $82,375 $93,745 $116,355 103,352 Add: Provision for income taxes: Total 77,263 53,851 81,263 43,761 76,177 Fixed charges as above 121,249 151,853 124,272 142,476 79,889 ----------------------------------------------- Total earnings, as defined $304,988 $288,079 $299,280 $302,592 $259,418 =============================================== Ratio of earnings to fixed charges, as defined 2.52 1.90 2.41 2.12 3.25 ===============================================