Exhibit 32.1

                                  CERTIFICATION

     Pursuant to 18 U.S.C. (S) 1350, the undersigned officer of ALLEGHENY
GENERATING COMPANY (the "Company"), hereby certifies, to such officer's
knowledge, that the Company's Annual Report on Form 10-K for the fiscal year
ended December 31, 2002 (the "Report") fully complies with the requirements of
Section 13(a) of the Securities Exchange Act of 1934 and that the information
contained in the Report fairly presents, in all material respects, the financial
condition and results of operations of the Company.


                                             /s/ Paul J. Evanson
                                             -----------------------------------
                                             Paul J. Evanson
September 24, 2003                           Principal Executive Officer