EXHIBIT 99.2


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

                           

The undersigned hereby certifies, in my capacity as an
officer of NSTAR, for purposes of 18 U.S.C. Section 1350,
as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that to the best of my knowledge:

  (i)  the enclosed Quarterly Report of NSTAR on Form 10-Q
       for the period ended September 30, 2002 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 such Report fairly
       presents, in all material respects, the financial
       condition and results of operation of NSTAR.

Dated:  November 13,2002        By:    /s/ THOMAS J. MAY
                                      Thomas J. May
                                      Chairman, President and
                                        Chief Executive Officer