UNDERWRITING AGREEMENT

Exhibit 1.2

UNDERWRITING AGREEMENT

September 20, 2006

To the Representatives:

Ladies and Gentlemen:

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 its name in Schedule I hereto of the securities specified in Schedule II hereto (the “Designated Securities”).

The representatives named on the signature page hereof (the “Representatives”) represent that the Underwriters have authorized the Representatives 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 August 1, 2006, as filed as Exhibit 1.2 to Registration Statement No. 333-136268 (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 Representatives 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.

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 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.

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

The Representatives

SCHEDULE I

SCHEDULE II

XIX. Modification of Basic Provisions

1. In the second sentence of the third paragraph of the Basic Provisions delete the work “electronic” prior to the word “delivery” and add the words “or communication” immediately following “delivery”.

2. In the second sentence of subparagraph (a) of Section 1 of the Basic Provisions delete the word “of” after the word “Act”.

3. In subparagraph (e) of Section 1 of the Basic Provisions delete the parenthetical “(a “Material Adverse Effect”)”.

4. In subparagraph (l) of Section 1 of the Basic Provisions add the parenthetical “(a “Material Adverse Effect”)” after the word “whole” and before the word “and”.

5. In Section 1 of the Basic Provisions add after subparagraph (s)

“(t) The Company maintains a system of internal accounting controls sufficient to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorization, (ii) transactions are recorded as necessary to permit preparation of its financial statements in conformity with generally accepted accounting principles and to maintain accountability for its assets, (iii) access to its assets is permitted only in accordance with management’s general or specific authorization and (iv) the recorded accountability for its assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences.”

The Company maintains disclosure controls and procedures to provide reasonable assurance that the information required to be disclosed by the Company in the reports that it submits to the Commission is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms.

Exhibit A

to

Schedule II

PRICING TERM SHEET

The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling HSBC Securities (USA) Inc. toll-free at 1-866-811-8049 or Morgan Stanley & Co. Incorporated toll-free at ###-###-####.