Material Event - Form 8-K

On May 6, 2024, Consolidated Edison Company of New York, Inc. ("CECONY") entered into an underwriting agreement with Citigroup Global Markets Inc., J.P. Morgan Securities LLC, SMBC Nikko Securities America, Inc. and Wells Fargo Securities, LLC, as representatives of the underwriters named therein, for the sale of $400 million aggregate principal amount of CECONY's 5.375% Debentures, Series 2024 A due 2034 (the "2024 A Debentures") and $1,000 million aggregate principal amount of CECONY's 5.70% Debentures, Series 2024 B due 2054 (the "2024 B Debentures" and together with the 2024 A Debentures, the "Debentures"). The Debentures were registered under the Securities Act of 1933 pursuant to a Registration Statement on Form (No. effective August 5, 2021).