EXHIBIT 99.05 - OFFICER CERTIFICATION


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


         In connection with the Quarterly Report of SPS on Form 10-Q for the
quarter ended Sept. 30, 2002, as filed with the Securities and Exchange
Commission on the date hereof (Form 10-Q), each of the undersigned officers of
the SPS certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer's
knowledge:

         (1)      The Form 10-Q fully complies with the requirements of Section
                  13(a) or 15(d) of the Securities Exchange Act of 1934; and

         (2)      The information contained in the Form 10-Q fairly presents, in
                  all material respects, the financial condition and results of
                  operations of Xcel Energy as of the dates and for the periods
                  expressed in the Form 10-Q.



Date: Nov. 14, 2002
                                /s/ GARY L. GIBSON
                                -----------------------------------------------
                                Gary L. Gibson
                                President and Chairman

                                /s/ Richard C. Kelly
                                -----------------------------------------------
                                Richard C. Kelly
                                Vice President and Chief Financial Officer




         The foregoing certification is being furnished solely pursuant to 18
U.S.C. Section 1350 and is not being filed as part of the Report or as a
separate disclosure document.