[Letterhead of Richards, Layton & Finger]


                                             May 14, 1998


Enterprise Capital Trust II
c/o Public Service Enterprise Group Incorporated
80 Park Plaza
Newark, New Jersey 07101

               Re:  Enterprise Capital Trust II

Ladies and Gentlemen:

     We have acted as special  Delaware  counsel for Public  Service  Enterprise
Group  Incorporated,  a New Jersey  corporation (the "Company"),  and Enterprise
Capital Trust II, a Delaware  business trust (the "Trust"),  in connection  with
the matters set forth herein.  At your request,  this opinion is being furnished
to you.

     For purposes of giving the opinions  hereinafter set forth, our examination
of documents has been limited to the  examination  of originals or copies of the
following:

     (a) The  Certificate  of Trust of the Trust,  dated as of December 22, 1997
(the  "Certificate"),  as filed in the office of the  Secretary  of State of the
State of Delaware (the "Secretary of State") on December 22, 1997;

     (b) The Trust Agreement of the Trust,  dated as of December 22, 1997, among
the Company, as Depositor, and the trustees of the Trust named therein;

     (c) The Registration Statement (the "Registration  Statement") on Form S-3,
including a preliminary prospectus (the "Prospectus"), relating to the __% Trust
Preferred  Securities of the Trust representing  preferred undivided  beneficial
interests  in  the  assets  of the  Trust  (each,  a  "Preferred  Security"  and
collectively,  the  "Preferred  Securities"),  as  proposed  to be  filed by the
Company,  the Trust and  others as set forth  therein  with the  Securities  and
Exchange Commission on or about May 11, 1998;

     (d) A form of Amended and  Restated  Trust  Agreement  of the Trust,  to be
entered into among the Company,  as  Depositor,  the trustees of the Trust named
therein, and the





Enterprise Capital Trust II
May 14, 1998
Page 2


holders,  from time to time, of undivided  beneficial interests in the assets of
the Trust  (including  Exhibits  A, C and D thereto)  (the  "Trust  Agreement"),
attached as an exhibit to the Registration Statement; and

     (e) A  Certificate  of Good  Standing  for the Trust,  dated May 11,  1998,
obtained from the Secretary of State.

     Initially  capitalized terms used herein and not otherwise defined are used
as defined in the Trust Agreement.

     For purposes of this opinion, we have not reviewed any documents other than
the documents listed in paragraphs (a) through (e) above, in particular, we have
not reviewed any document  (other than the documents  listed in  paragraphs  (a)
through (e) above) that is referred to in or  incorporated by reference into the
documents  reviewed by us. We have assumed that there exists no provision in any
document that we have not reviewed that is inconsistent with the opinions stated
herein.  We have conducted no independent  factual  investigation of our own but
rather have relied  solely upon the  foregoing  documents,  the  statements  and
information  set forth  therein and the  additional  matters  recited or assumed
herein,  all of which we have  assumed to be true,  complete and accurate in all
material respects.

     With  respect to all  documents  examined  by us, we have  assumed  (i) the
authenticity of all documents submitted to us as authentic  originals,  (ii) the
conformity  with the  originals  of all  documents  submitted to us as copies or
forms, and (iii) the genuineness of all signatures.

     For purposes of this opinion,  we have assumed (i) that the Trust Agreement
and the Certificate are in fill force and effect and have not been amended, (ii)
except to the extent  provided  in  paragraph 1 below,  the due  creation or due
organization  or due formation,  as the case may be, and valid existence in good
standing  of each party to the  documents  examined  by us under the laws of the
jurisdiction governing its creation,  organization or formation, (iii) the legal
capacity of natural  persons who are  parties to the  documents  examined by us,
(iv) that each of the parties to the documents  examined by us has the power and
authority to execute and deliver,  and to perform its  obligations  under,  such
documents,  (v) the due  authorization,  execution  and  delivery by all parties
thereto of all documents examined by us, (vi) the receipt by each Person to whom
a Preferred Security is to be issued by the Trust (collectively,  the "Preferred
Security  Holders") of a Preferred  Securities  Certificate  for such  Preferred
Security  and  the  payment  for  the  Preferred  Security  acquired  by it,  in
accordance with the Trust Agreement and the  Registration  Statement,  and (vii)
that the  Preferred  Securities  are issued and sold to the  Preferred  Security
Holders in accordance with the Trust Agreement and the  Registration  Statement.
We have not  participated in the preparation of the  Registration  Statement and
assume no responsibility for its contents.





Enterprise Capital Trust II
May 14, 1998
Page 3


     This opinion is limited to the laws of the State of Delaware (excluding the
securities  laws of the  State  of  Delaware),  and we have not  considered  and
express no opinion on the laws of any other jurisdiction, including federal laws
and rules and regulations  relating thereto. Our opinions are rendered only with
respect to Delaware laws and rules,  regulations and orders  thereunder that are
currently in effect.

     Based upon the foregoing, and upon our examination of such questions of law
and  statutes  of the  State of  Delaware  as we have  considered  necessary  or
appropriate,  and subject to the  assumptions,  qualifications,  limitations and
exceptions set forth herein, we are of the opinion that:

     1. The Trust has been duly created and is validly existing in good standing
as a business trust under the Delaware Business Trust Act.

     2. The  Preferred  Securities  will  represent  valid  and,  subject to the
qualifications  set forth in  paragraph  3 below,  fully paid and  nonassessable
undivided beneficial interests in the assets of the Trust.

     3. The Preferred Security Holders,  as beneficial owners of the Trust, will
be  entitled  to  the  same  limitation  of  personal   liability   extended  to
stockholders  of private  corporations  for profit  organized  under the General
Corporation  Law of the State of Delaware.  We note that the Preferred  Security
Holders may be obligated to make payments as set forth in the Trust Agreement.

     We consent to the filing of this opinion with the  Securities  and Exchange
Commission as an exhibit to the Registration  Statement.  In addition, we hereby
consent  to the  use of our  name  under  the  heading  "Legal  Matters"  in the
Prospectus.  In giving the foregoing  consents,  we do not thereby admit that we
come within the category of Persons whose consent is required under Section 7 of
the  Securities  Act of 1933, as amended,  or the rules and  regulations  of the
Securities and Exchange Commission  thereunder.  Except as stated above, without
our prior  written  consent,  this opinion may not be furnished or quoted to, or
relied upon by, any other Person for any purpose.


                                             Very truly yours,

                                             /s/ Richards, Layton & Finger, P.A.


BJK/BJ