Exhibit 5.1

                                                              September 10, 2002

Public Service Enterprise Group
80 Park Plaza, T-4
Newark, New Jersey 07102

Ladies and Gentlemen:

      I am Associate General Counsel of Public Service Enterprise Group
Incorporated, a New Jersey corporation (the "Company"), and I am rendering this
opinion in connection with the issuance by the Company and PSEG Funding Trust I,
a Delaware statutory trust (the "Trust"), of an aggregate of 9,200,000
Participating Units. Each Participating Unit will initially consist of (1) a
unit (referred to as a "Corporate Unit") comprised of (a) a stock purchase
contract (the "Purchase Contract") under which the holder is obligated to
purchase from the Company on November 16, 2005, a number of shares of common
stock, no par value, of the Company (the "Common Stock") equal to the Settlement
Rate (as defined in the Purchase Contract Agreement) and (b) beneficial
ownership of a 6.25% Preferred Trust Security (each, a Preferred Trust Security
and collectively, the Preferred Trust Securities) of the Trust, having a
liquidation amount of $50. The assets of the Trust will consist of 6.25% Senior
Deferrable Notes Due 2007 (the "Notes") to be issued under the indenture dated
as of November 1, 1998 between the Company and Wachovia Bank, National
Association (formerly known as First Union National Bank), as Trustee, as
supplemented by the First Supplemental Indenture thereto dated as of September
10, 2002 (together, the "Indenture"). The Participating Units are to be issued
pursuant to a Registration Statement (the "Registration Statement") on Form S-3
(Nos. 333-86372 and 333-86372-01), relating to $1,500,000,000 aggregate initial
public offering price of the Company's common stock, preferred stock, purchase
contracts, stock purchase units, debt securities, preferred securities guarantee
and the Notes, and the Trust's Preferred Trust Securities.

      I have examined such documents and records and made such investigation as
I deemed appropriate or necessary, including examining the Indenture and the
Purchase Contract Agreement.




Public Service Enterprise Group
September 10, 2002
Page Two

      Based upon the foregoing, subject to the limitations set forth herein and
having regard for such legal considerations as I deem relevant, I am of the
opinion that:

      (1) Assuming the due authentication thereof by the Trustee, the Notes
constitute valid and legally binding obligations of the Company enforceable
against the Company in accordance with their terms.

      (2) Assuming the due authentication thereof by the Purchase Contract
Agent, the Purchase Contracts constitute valid and legally binding obligations
of the Company enforceable against the Company in accordance with their terms.

      My opinions set forth in Paragraphs 1 and 2 above are subject to the
effects of (1) bankruptcy, insolvency, reorganization, moratorium, fraudulent
conveyance or other similar laws affecting the enforcement of creditors' rights
in general and the rights of creditors generally and (2) general equitable
principles (regardless of whether enforcement is considered in a proceeding in
equity or at law).

      This opinion is confined to and is given on the basis of the laws of the
State of New Jersey as they exist on the date hereof. With respect to the laws
of the State of New York, I have relied on all matters governed by such laws
upon the opinion of Ballard Spahr Andrews & Ingersoll, LLP.

      I hereby consent to the filing of this opinion as an exhibit to the
Registration Statement. In giving this consent, I do not admit that I am within
the category of persons whose consent is required under Section 7 of the
Securities Act of 1933, as amended.

                                                       Very truly yours,

                                                       James T. Foran
                                                       Associate General Counsel