DEFA14A

                            SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. )

Filed by the Registrant [ X ] Filed by a Party other than the Registrant [ ]

Check the appropriate box:
   [   ]  Preliminary Proxy Statement
   [   ]  Confidential, for Use of the Commission Only (as permitted by Rule
          14a-6(e)(2))
   [   ]  Definitive Proxy Statement
   [ X ]  Definitive Additional Materials
   [   ]  Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12

               Consolidated Edison Company of New York, Inc.
            (Name of  Registrant  as Specified  In Its Charter)


   (Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
   [ X ] No fee required.
   [   ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4)and 0-11.
        1)  Title of each class of securities to which transaction applies:
        2)  Aggregate number of securities to which transaction applies:
        3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange  Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined):
        4)  Proposed maximum aggregate value of transaction:
        5)  Total fee paid:
   [   ] Fee paid previously with preliminary materials.
   [   ] Check box if any part of the fee is offset as provided by Exchange
         Act Rule 0- 11(a)(2) and  identify the filing for which the  offsetting
         fee was paid  previously.  Identify the previous filing by registration
         statement number, or the Form or Schedule and the date of its filing.
        1)  Amount Previously Paid:
        2)  Form, Schedule or Registration Statement No.:
        3)  Filing Party:
        4)  Date Filed:

EX-99

The following is included in the November 20, 1997 Update, a bulletin posted for
employees,  and will also be  included  in a  forthcoming  edition of Con Edison
Times, an employee communications newspaper.

A VOTE FOR THE COMPANY'S FUTURE

      The Company has mailed proxy materials to its stockholders of record as of
October  28,  1997  announcing  a special  stockholders'  meeting  to be held on
December 12, 1997.  The meeting has been called to consider the proposal to form
a holding company  structure for the Company,  in which Con Edison will become a
subsidiary  of the holding  company to be named  Consolidated  Edison,  Inc. The
proxy materials also provide our  stockholders  with the opportunity to consider
and vote on a  proposal  to amend  Con  Edison's  Certificate  of  Incorporation
regarding the authorized number of Trustees of Con Edison.

      We strongly recommend that our employees and retirees who are stockholders
vote for this exciting initiative.  Holding company structures have been adopted
successfully in recent years by many other large utilities in the United States.
A holding  company  structure will give the Company the financial and regulatory
flexibility to participate successfully in those segments of the energy business
in which we have been  operating  for many  years  but  which  are now  becoming
competitive.  The  holding  company  will allow us to  continue  to serve  these
segments  and provide  other  services  to  customers  in the newly  competitive
environment,  while maintaining the strength of our core regulated electric, gas
and steam utility business.

      Your vote is very  important,  regardless of the number of shares you own.
The holding company proposal  requires the affirmative vote of two-thirds of the
Common and $5 Cumulative Preferred shares outstanding. Failing to vote or voting
to abstain  will have the same  effect as voting  against  the  holding  company
proposal.  Therefore,  if you are a  stockholder  and haven't sent in your proxy
card,  please sign,  date and send it in without delay. If you own stock through
the  Company's   Discount  Stock  Purchase  Plan,   your  proxy  materials  were
distributed by State Street Bank & Trust  Company.  If you own stock through the
management or weekly savings plans or the TRASOP plan your proxy  materials were
distributed by the Vanguard Group. If you own stock, either directly,  through a
broker, or in one of the Company-sponsored stock plans and haven't received your
proxy materials,  or if you've misplaced the proxy card,  please call Con Edison
Investor Services at 1-800-522-5522.