Table of Contents Filed pursuant to Rule 424(b)(2) Registration No. 333-136268 CALCULATION OF REGISTRATION FEE Proposed maximum Proposed Amount of offering maximum registration Title of each class of Amount to be price aggregate fee securities to be registered registered per unit offering price (1)(2) 6.30% Debentures, Series 2007 A $525,000,000 99.443% $522,075,750 $16,027.73 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933. (2) This “Calculation of Registration Fee” table shall be deemed to update the “Calculation of Registration Fee” table in Consolidated Edison Company of New York, Inc.’s Registration Statement on Form S-3ASR (No. 333-136268). Table of Contents Filed pursuant to Rule 424(b)(2) Registration No. 333-136268 PROSPECTUS SUPPLEMENT (To Prospectus dated August 3, 2006) $525,000,000 Consolidated Edison Company of New York, Inc. 6.30% Debentures, Series 2007 A due 2037 This is a public offering by Consolidated Edison Company of New York, Inc. of $525,000,000 of Series 2007 A Debentures due August 15, 2037. Interest on the Debentures is payable on February 15, 2008 and thereafter semi-annually on February 15 and August 15 in each year. We may redeem some or all of the Debentures at any time as described in this prospectus supplement. The Debentures will be unsecured obligations and rank equally with our other unsecured debt securities that are not subordinated obligations. The Debentures will be issued only in registered form in denominations of $1,000 or an integral multiple thereof. Investing in the Debentures involves risks. See “ Risk Factors” on page S-3 of this prospectus supplement. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense. Per Debenture Total Initial public offering price 99.443% $522,075,750 Underwriting discount 0.875% $ 4,593,750 Proceeds, before expenses, to the Company 98.568% $517,482,000 The initial public offering price set forth above does not include accrued interest, if any. Interest on the Debentures will accrue from August 28, 2007 and must be paid by the purchaser if the Debentures are delivered after August 28, 2007. The underwriters expect to deliver the Debentures to purchasers through The Depository Trust Company on or about August 28, 2007. Joint Book-Running Managers Barclays Capital Citi JPMorgan Co-Managers KeyBanc Capital Markets Lazard Capital Markets Mizuho Securities USA Inc. Loop Capital Markets, LLC The Williams Capital Group, L.P. August 23, 2007 Table of Contents IN THIS PROSPECTUS SUPPLEMENT, THE “COMPANY” AND “CON EDISON OF NEW YORK,” “WE,” “US” AND “OUR” REFER TO CONSOLIDATED EDISON COMPANY OF NEW YORK, INC. IN ADDITION, WE REFER TO THE 6.30% DEBENTURES, SERIES 2007 A DUE 2037 AS THE “DEBENTURES”. You should rely only on the information contained in or incorporated by reference in this prospectus supplement and the accompanying prospectus (together, the “prospectus”), and in any written communication from us or the underwriters specifying the final terms of the offering. We have not authorized anyone to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information contained in or incorporated by reference in this prospectus supplement and prospectus is accurate as of any date other than the date on the front of this prospectus supplement. TABLE OF CONTENTS Prospectus Supplement Page Risk Factors S-3 The Company S-3 Use of Proceeds S-3 Ratio of Earnings to Fixed Charges S-3 Description of Debentures S-4 Underwriting S-7 Experts S-8 Prospectus About This Prospectus 3 Where You Can Find More Information 3 Incorporation By Reference 3 Risk Factors 4 Con Edison of New York 4 Use of Proceeds 4 Ratio of Earnings to Fixed Charges 4 Description of Securities 5 Plan of Distribution 11 Legal Matters 12 Experts 12 S-2 Table of Contents RISK FACTORS You should carefully consider the risks described under “Risk Factors” in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2006 (which description is incorporated by reference herein), as well as the other information contained or incorporated by reference in this prospectus supplement and the prospectus before making a decision to invest in our debt securities. See “Where You Can Find More Information,” in the prospectus. Our business is influenced by many factors that are difficult to predict, that are often beyond our control and that involve uncertainties that may materially affect our actual operating results, cash flows and financial condition. THE COMPANY The Company, incorporated in New York State in 1884, is a subsidiary of Consolidated Edison, Inc. Our principal executive offices are located at 4 Irving Place, New York, New York 10003. Our telephone number is (212) 460-4600. The Company provides electric service in all of New York City (except part of Queens) and most of Westchester County, an approximately 660 square mile service area with a population of more than nine million. We also provide gas service in Manhattan, the Bronx and parts of Queens and Westchester, and steam service in parts of Manhattan. USE OF PROCEEDS We anticipate using the net proceeds received by us from the sale of the Debentures for general corporate purposes, including repayment of short-term debt bearing interest at variable rates. At August 22, 2007, the weighted average annualized yield for the $333 million of our commercial paper that was outstanding was 5.60 percent. RATIO OF EARNINGS TO FIXED CHARGES The following table sets forth Con Edison of New York’s ratio of earnings to fixed charges for the periods indicated: Year Ended December 31, Six Months Ended June 30, 2007 2006 2005 2004 2003 2002 3.4 3.2 3.6 3.1 3.4 3.4 The ratio of earnings to fixed charges has been computed based upon net income plus income tax and fixed charges. Fixed charges include interest on long-term debt and other interest expense, amortization of debt expense, discount and premium, and a reasonable approximation of the interest component of rentals. S-3 Table of Contents DESCRIPTION OF DEBENTURES General The Debentures will mature on August 15, 2037. We may redeem the Debentures prior to maturity as set forth below. Additional information describing the Debentures and the Indenture under which they are to be issued is included in “Description of Securities” in the prospectus. Interest We will pay interest on the Debentures at the rate per annum stated on the first page of this prospectus supplement in the title of the series. Interest will accrue from August 28, 2007 or from the most recent interest payment date to which interest has been paid. Interest is payable on February 15, 2008 and thereafter semi-annually on February 15 and August 15 in each year to holders of record at the close of business on the last day, whether or not a business day, of the calendar month next preceding such interest payment date, except as otherwise provided in the Indenture. Redemption at Our Option We may redeem the Debentures in whole or in part, at our option at any time, at a redemption price equal to the greater of (1) 100% of the principal amount of the Debentures being redeemed or (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon (exclusive of interest accrued to the date of redemption) discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined below) plus 25 basis points, plus accrued interest on the principal amount being redeemed to the redemption date. “Comparable Treasury Issue” means the United States Treasury security or securities selected by an Independent Investment Banker (as defined below) as having an actual or interpolated maturity comparable to the remaining term of the Debentures being redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of such Debentures. “Comparable Treasury Price” means, with respect to any redemption date, (1) the average of the Reference Treasury Dealer Quotations (as defined below) for such redemption date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (2) if the trustee obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations. “Independent Investment Banker” means one of the Reference Treasury Dealers (as defined below) appointed by the trustee after consultation with us. “Reference Treasury Dealer” means each of Barclays Capital Inc., Citigroup Global Markets Inc. and J.P. Morgan Securities Inc., their respective successors, and one other primary U.S. Government securities dealer in the United States (a “Primary Treasury Dealer”) selected by us. If any Reference Treasury Dealer shall cease to be a Primary Treasury Dealer, we will substitute another Primary Treasury Dealer for that dealer. “Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the trustee, of the bid and asked prices for the Comparable Treasury issue (expressed in each case as a percentage of its principal amount) quoted in writing to the trustee by such Reference Treasury Dealer at 3:30 p.m. New York time on the third business day preceding such redemption date.