EXHIBIT 12.3 SOUTHWESTERN ELECTRIC POWER COMPANY RATIO OF EARNINGS TO FIXED CHARGES FOR THE TWELVE MONTHS ENDED SEPTEMBER 30, 1996 (Thousands except Ratio) (Unaudited) Operating Income $147,619 Adjustments: Income taxes 23,907 Provision for income taxes 15,249 Deferred investment tax credits (4,744) Utility plant development costs, net of tax (21,743) Other income and deductions 719 Allowance for borrowed and equity funds used during construction 3,681 Interest portion of financing leases 1,601 Earnings $166,289 Fixed Charges: Interest on long-term debt $ 44,582 Amortization of debt issuance cost 3,355 Other interest 6,445 Interest portion of financing leases 1,601 ------- Fixed Charges $ 55,983 ======= Ratio of Earnings to Fixed Charges 2.97 =======