EXHIBIT 32.1








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


In connection with the Quarterly Report on Form 10-Q dated August 5, 2004, for
each of PNM Resources, Inc. and Public Service Company of New Mexico
("Companies"), as filed with the Securities and Exchange Commission on August 5,
2004 ("Report"), I, Jeffry E. Sterba, Chief Executive Officer of the Companies,
certify pursuant to 18 U.S.C. ss.1350, as adopted pursuant to ss. 906 of the
Sarbanes-Oxley Act of 2002, that:

       (1)     the Report fully complies with the requirements of ss.13(a) or
               15(d) of the Securities Exchange Act of 1934, as amended; and

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



Date:   August 5, 2004              By:     /s/ Jeffry E. Sterba
                                            ------------------------------------
                                            Jeffry E. Sterba
                                            Chairman, President and
                                            Chief Executive Officer