Exhibit 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement Nos. 33- 52782 and 33-63602, and Post Effective Amendment No. 1 to Registration Statement Nos. 33-46773 and 33-53563-01 of Duquesne Light Company on Form S-3 of our report dated February 1, 2001, appearing in this Annual Report on Form 10-K of Duquesne Light Company for the year ended December 31, 2000. /s/Deloitte & Touche LLP DELOITTE & TOUCHE LLP Pittsburgh, Pennsylvania March 26, 2001