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                                                                    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

Pursuant to 18 U.S.C.  Section 1350,  as adopted  pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, each of the undersigned certifies that:

1)   This periodic report does not fully comply with the requirements of Section
     13(a) or 15(d) of the Securities  Exchange Act of 1934, as amended, in that
     it is  being  filed  with  the  Securities  and  Exchange  Commission  (the
     "Commission")  beyond the time period prescribed by the Commission's  rules
     and forms.

2)   To the best of our knowledge and after reviewing the periodic  report,  the
     information  contained in this  periodic  report  fairly  presents,  in all
     material  respects,  the  financial  condition and results of operations of
     Ridgewood Electric Power Trust I.

Date:  July 15, 2005           /s/ Robert E. Swanson
                             --------------------------------
                             Robert E. Swanson
                             Chief Executive Officer

Date:  July 15, 2005          /s/ Douglas Wilson
                             --------------------------------
                             Douglas Wilson
                             Chief Financial Officer