EXHIBIT 32.2
                            CERTIFICATION PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
        (SUBSECTIONS (a) AND (b) OF SECTION 1350, CHAPTER 63 OF TITLE 18,
                               UNITED STATES CODE)

     Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a)
and (b) of Section 1350, Chapter 63 of Title 18, United States Code) (the Act),
I, Mark M. Jacobs, Executive Vice President and Chief Financial Officer of Orion
Power Holdings, Inc. (the Company), hereby certify, to the best of my knowledge:

     (a)  the Company's Annual Report on Form 10-K for the annual period ended
          December 31, 2003 (the Report), fully complies with the requirements
          of Section 13(a) or 15(d), as applicable, of the Securities Exchange
          Act of 1934; and

     (b)  the information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.

Date: March 15, 2004                                      /s/ Mark M. Jacobs
                                                 -------------------------------
                                                          Mark M. Jacobs
                                                  Executive Vice President and
                                                     Chief Financial Officer