Series 1998 C Debentures



                             UNDERWRITING AGREEMENT




                                                             June 22, 1998

To the Representative Named
on the Signature Page Hereof:

Dear Sirs:

      Subject to the terms and conditions  stated or  incorporated  by reference
herein,  Consolidated  Edison Company of New York, Inc. (the  "Company")  hereby
agrees  to  sell  to  the   Underwriters   named  in   Schedule  I  hereto  (the
"Underwriters") and the Underwriters hereby agree to purchase, severally and not
jointly,  the  principal  amount set forth  opposite  their  names in Schedule I
hereto of the  securities  specified  in  Schedule  II hereto  (the  "Designated
Securities").

      The   representative   named   on   the   signature   page   hereof   (the
"Representative")   represents  that  the   Underwriters   have  authorized  the
Representative to enter into this Underwriting Agreement and to act hereunder on
their behalf.

      Except as otherwise  provided in Schedule II hereto each of the provisions
of the Company's Underwriting Agreement Basic Provisions,  dated April 16, 1992,
as filed as Exhibit 1(b) to  Registration  Statement  No.  33-47261  (the "Basic
Provisions"),  is incorporated herein by reference in its entirety, and shall be
deemed to be a part of this  Agreement to the same extent as if such  provisions
had been set  forth in full  herein.  Unless  otherwise  defined  herein,  terms
defined in the Basic Provisions are used herein as therein defined.

      Payment  for the  Designated  Securities  will be  made  against  delivery
thereof to the Representative for the accounts of the respective Underwriters at
the time and place and at the purchase  price to the  Underwriters  set forth in
Schedule II hereto.








                                       - 2 -


      If the foregoing is in accordance with your understanding, please sign and
return to us counterparts  hereof,  and upon acceptance hereof by you, on behalf
of each of the Underwriters,  this letter and such acceptance hereof,  including
the Basic  Provisions  incorporated  herein by  reference,  shall  constitute  a
binding agreement between each of the Underwriters and the Company.

                                Very truly yours,

                                    CONSOLIDATED EDISON COMPANY
                                OF NEW YORK, INC.


                                    By:   Robert P. Stelben
                                          Vice President and Treasurer


Confirmed  and Accepted as of the date hereof on behalf of itself and each other
Underwriter, if any:


SALOMON BROTHERS INC

By:   Howard Hiller
      Vice President







                                   SCHEDULE I


                                          Principal Amount of
                                          Designated Securities
      Underwriter                         to be Purchased


SALOMON BROTHERS INC                      $100,000,000

            Total                         $100,000,000









                                   SCHEDULE II


Title of Designated Securities:

      6.15% Debentures, Series 1998 C


Aggregate principal amount:

      $100,000,000.


Price to Public:

      Initially  99.814% of the principal  amount of the Designated  Securities,
      plus accrued interest, if any, from June 25, 1998 to the date of delivery,
      thereafter  at  market  prices  prevailing  at  the  time  of  sale  or at
      negotiated prices.


Purchase Price by Underwriters:


      99.431% of the principal amount of the Designated Securities, plus accrued
      interest, if any, from June 25, 1998 to the date of delivery.


Specified funds for, and manner of, payment of purchase price:

      Funds will be delivered by wire transfer to:
            Marine Midland Bank
            ABANo. 021-00108-8
            Cr A/C No. 002-60016-1
            Ref: NYSERDA/Con Edison
            Attn: M. Caner

Indenture:

      Indenture, dated as of December 1, 1990, between the Company and The Chase
      Manhattan  Bank,  as  Trustee,  as amended and  supplemented  by the First
      Supplemental Indenture, dated as of March 6, 1996, between the Company and
      The Chase Manhattan Bank, as Trustee.






                                       - 2 -

Maturity:

      July 1, 2008.


Interest Rate:

      As set forth in the  prospectus  supplement,  dated June 22, 1998, for the
      Designated  Securities  (the  "Prospectus  Supplement") to the prospectus,
      dated February 11, 1998 (the "Prospectus"),  filed with the Securities and
      Exchange  Commission  (the  "SEC")  pursuant to Rule  424(b)(2)  under the
      Securities  Act of 1933,  as amended,  in  connection  with the  Company's
      Registration  Statement on Form S-3 (No. 333-45745,  declared effective by
      the SEC on February 11, 1998).


Interest Payment Dates:

      As set forth in the Prospectus Supplement.


Redemption Provisions:

      None.


Sinking Fund Provisions:

      None.


Time of Delivery:

      10:00 a.m., on June 25, 1998.


Closing Location:

      Room 1810-S at the Company, 4 Irving Place, New York, NY 10003.






                                       - 3 -

Information  furnished  by or on  behalf  of  the  Underwriters  for  use in the
Prospectus for the Designated Securities:

      1. The paragraph regarding stabilization on page 2 of the Prospectus.

      2. The final paragraph of the front cover of the Prospectus Supplement

      3.    The second paragraph and the second and third sentences of the third
            paragraph of the section entitled  "Underwriting" on page S-4 of the
            Prospectus Supplement.


Address of Representative:

Salomon Brothers Inc
Seven World Trade Center
New York, New York  10048

Captions in the  Prospectus  and  Prospectus  Supplement  referred to in Section
6(c)(xi) of the Basic Provisions:

      Description of Securities
      Description of Debentures


Modifications of Basic Provisions:

      1.    Delete  Section  3 of  the  Basic  Provisions  in its  entirety  and
            substitute the following:

            "One  or  more  Global  Securities  (as  defined  in  the  Indenture
            specified  in  the   Underwriting   Agreement)  for  the  Designated
            Securities  in the  aggregate  principal  amount  of the  Designated
            Securities  shall  be  registered  in the  name  of  Cede & Co.  and
            delivered  to The  Depository  Trust  Company with  instructions  to
            credit the Designated  Securities to the account of, or as otherwise
            instructed   by,   the   Representative   against   payment  by  the
            Representative  of the purchase  price  therefor in the amount,  the
            funds and manner  specified in the  Underwriting  Agreement,  at the
            place,  time and date specified in the Underwriting  Agreement or at
            such  other  place,  time  and  date as the  Representative  and the
            Company  may  agree in  writing,  said  time and date  being  herein
            referred  to  as  the  "Time  of  Delivery"   for  said   Designated
            Securities.

      2.    Delete Section  6(c)(ii) of the Basic Provisions in its entirety and
            substitute the following:

            "(ii)The Company has authorized equity capitalization as set forth,
            or incorporated by reference, in the Prospectus;"






                                          - 4 -

      3.    In Sections 1(g) and 6(c)(iii) of the Basic Provisions,  insert "law
            or" immediately before the phrase "principles of public policy."

      4.    In Section 6(f) of the Basic Provisions, substitute "Fitch Investor
            Services" for "Duff and Phelps Inc."

      5.    In Section 7(a) of the Basic  Provisions,  insert  "promptly as such
            expenses are incurred"  immediately  before the phrase ";  provided,
            however,".

      6.    In  Section  7(d) of the  Basic  Provisions,  add at the  end:  "The
            foregoing  provisions  regarding  contribution shall apply except as
            otherwise required by applicable law."

      7.    Add as new Section 1(n) of the Basic  Provisions:  "The Company does
            not have sufficient  information to make a  determination  that, for
            the twelve months ended June 22, 1998,  there was any  decrease,  as
            compared with the corresponding  prior period, in operating revenues
            less fuel, purchased power and gas purchased for resale."

      8.    Delete clause (iii)(D) of Annex I of the Basic Provisions.

      9.    The word  "Prospectus" in Annex I of the Basic  Provisions may be
            changed to the words  "Registration  Statement",  defined to include
            the documents incorporated by reference therein.

      10.  Clause  (iii)A  of Annex I of the  Basic  Provisions  is  revised  as
           follows:

                  "(A)  the  unaudited  financial  statements   incorporated  by
            reference in the Registration  Statement,  or from which information
            set forth in the Registration  Statement was taken, do not comply as
            to form in all  material  respects  with the  applicable  accounting
            requirements  of the  Exchange  Act  and  the  published  rules  and
            regulations thereunder, or any material modifications should be made
            to the unaudited  financial  statements for them to be in conformity
            with generally accepted accounting principles,"

      11.   Add as new Section 6(c)(xii) of the Basic Provisions:  "Consolidated
            Edison,  Inc. is exempt from the  provisions  of the Public  Utility
            Holding Company Act of 1935 except Section 9(a)(2) thereof."

      12.   In Section 1(c) of the Basic Provisions,  add ", and the Prospectus,
            as it may be amended or  supplemented  pursuant to Section 4 hereof,
            as of the Time of Delivery will not," immediately  before the phrase
            "contain an untrue statement of a material fact".

Other:

      None.