Exhibit 99(a) Entergy Arkansas, Inc. Computation of Ratios of Earnings to Fixed Charges and Ratios of Earnings to Combined Fixed Charges and Preferred Dividends 1994 1995 1996 1997 1998 1999 Fixed charges, as defined: Total Interest Charges $110,814 $115,337 $106,716 $104,165 $96,685 $97,023 Interest applicable to rentals 19,140 18,158 19,121 17,529 15,511 17,289 ----------------------------------------------------------- Total fixed charges, as defined 129,954 133,495 125,837 121,694 112,196 114,312 Preferred dividends, as defined (a) 23,234 27,636 24,731 16,073 16,763 17,836 ----------------------------------------------------------- Combined fixed charges and preferred dividends, as defined $153,188 $161,131 $150,568 $137,767 $128,959 $132,148 =========================================================== Earnings as defined: Net Income $142,263 $136,666 $157,798 $127,977 $110,951 $69,313 Add: Provision for income taxes: Total 29,220 72,081 84,445 59,220 71,374 54,012 Fixed charges as above 129,954 133,495 125,837 121,694 112,196 114,312 ----------------------------------------------------------- Total earnings, as defined $301,437 $342,242 $368,080 $308,891 $294,521 $237,637 =========================================================== Ratio of earnings to fixed charges, as defined 2.32 2.56 2.93 2.54 2.63 2.08 =========================================================== Ratio of earnings to combined fixed charges and preferred dividends, as defined 1.97 2.12 2.44 2.24 2.28 1.80 =========================================================== - ------------------------ (a) "Preferred dividends," as defined by SEC regulation S-K, are computed by dividing the preferred dividend requirement by one hundred percent (100%) minus the income tax rate.