Exhibit 15.1

                    Report of Independent Accountants

To the Shareholders and Trustees of
Boston Edison Company:

We have reviewed the accompanying condensed consolidated balance
sheet of Boston Edison Company and its subsidiaries as of June
30, 2001, and the related condensed consolidated statements of
income and retained earnings for each of the three and six-month
periods ended June 30, 2001 and 2000 and the condensed
consolidated statement of cash flows for the six month periods
ended June 30, 2001 and 2000. These financial statements are the
responsibility of the Company's management.

We conducted our review in accordance with standards established
by the American Institute of Certified Public Accountants.  A
review of interim financial information consists principally of
applying analytical procedures to financial data and making
inquiries of persons responsible for financial and accounting
matters.  It is substantially less in scope than an audit
conducted in accordance with generally accepted auditing
standards, the objective of which is the expression of an opinion
regarding the financial statements taken as a whole.
Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material
modifications that should be made to the accompanying condensed
consolidated interim financial statements for them to be in
conformity with accounting principles generally accepted in the
United States of America.

We previously audited in accordance with auditing standards
generally accepted in the United States of America, the
consolidated balance sheet as of December 31, 2000, and the
related consolidated statements of income, comprehensive income,
retained earnings, and cash flows for the year then ended (not
presented herein), and in our report dated January 26, 2001 we
expressed an unqualified opinion on those consolidated financial
statements.  In our opinion, the information set forth in the
accompanying condensed consolidated balance sheet as of June 30,
2001, is fairly stated in all material respects in relation to
the consolidated balance sheet from which it has been derived.


PricewaterhouseCoopers LLP
Boston, Massachusetts
August 10, 2001