United States Court of Appeals For the First Circuit No. 04-2590 No. 05-1836 BOSTON EDISON COMPANY, Petitioner, v. FEDERAL ENERGY REGULATORY COMMISSION, Respondent. __________ CONCORD MUNICIPAL LIGHT PLANT, WELLESLEY MUNICIPAL LIGHT PLANT, Intervenors.

ERRATA The opinion of this court issued March 20, 2006, is amended as follows: On page 11, paragraph two, line 3: change "PTF-in" to "PTF-- in." On page 16, line 3, change "Kahn" to "Kahn."