Exhibit 99.2

              Certificate Pursuant to Section 1350 of Chapter 63 of
                          Title 18 United States Code
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         The undersigned officer hereby certifies, as to the Quarterly Report on
Form 10-Q of Exelon Corporation for the quarterly period ended September 30,
2002, that (i) the report fully complies with the requirements of section 13(a)
or 15(d) of the Securities Exchange Act of 1934, and (ii) the information
contained in the report fairly presents, in all material respects, the financial
condition and results of operations of Exelon Corporation.



Date:  October 31, 2002                     /s/ Ruth Ann M. Gillis
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                                            Ruth Ann M. Gillis
                                            Senior Vice President and Chief
                                              Financial Officer
                                            Exelon Corporation