NSARO NSTAR Electric Company (PK)

On September 15, 2022, NSTAR Electric Company, doing business as Eversource Energy (“NSTAR Electric”), issued $400,000,000 aggregate principal amount of its 4.95% Debentures due 2052 (“Debentures”) pursuant to an Underwriting Agreement, dated September 12, 2022, between NSTAR Electric and BofA Securities, Inc., J.P. Morgan Securities LLC, Morgan Stanley & Co. LLC and U.S. Bancorp Investments, Inc., as representatives of the several underwriters named therein. The Debentures were issued under an indenture dated as of September 1, 1988, between NSTAR Electric (formerly Boston Edison Company) and The Bank of New York Mellon Trust Company, N.A., formerly known as The Bank of New York Trust Company, N.A. (as successor to The Bank of New York, as successor to Bank of Montreal Trust Company), as trustee. NSTAR Electric has registered its Debentures with the U.S. Securities and Exchange Commission under the Securities Act of 1933, as amended, pursuant to a Registration Statement on Form S-3 (Commission File No. 333-264278-02).

The Debentures mature on September 15, 2052 and bear interest at 4.95%, payable semi-annually on each March 15 and September 15, commencing on March 15, 2023. Interest on the Debentures will accrue from September 15, 2022 and will be computed on the basis of a 360-day year consisting of twelve 30-day months.