Exhibit 99.1


                        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 Western Massachusetts Electric
Company (the "Company") on Form 10-Q for the period ending June 30, 2002
as filed with the Securities and Exchange Commission (the "Report"), we,
Michael G. Morris, Chairman and Chief Executive Officer of the Company and
John H. Forsgren, Executive Vice President and Chief Financial Officer of
Northeast Utilities Service Company, agent for the Company, certify, pursuant
to 18 U.S.C. Sec. 1350, as adopted pursuant to Sec. 906 of the Sarbanes-Oxley
Act of 2002, that:

1)     The Report 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 Report fairly presents, in all
material respects, the financial condition and result of operations of
the Company.

/s/ Michael G. Morris
    ---------------------------------------------------------
    (Signature)
    Michael G. Morris
    Chairman and Chief Executive Officer

/s/ John H. Forsgren (Signature)
    ---------------------------------------------------------
    John H. Forsgren
    Executive Vice President and Chief
    Financial Officer of Northeast Utilities Service Company,
    as Agent for the Company


August 7, 2002