Exhibit 23(a) INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Amendment No. 1 to Registration Statement No. 333-100632 of Southwestern Electric Power Company on Form S-3 of our reports dated February 22, 2002, appearing in and incorporated by reference in the Annual Report on Form 10-K of Southwestern Electric Power Company for the year ended December 31, 2001 and to the reference to us under the heading "Experts" in the Prospectus, which is part of such Registration Statement. /s/ Deloitte & Touche LLP Columbus, Ohio October 31, 2002