NSTAR Electric Company Declares Preferred Dividends

BOSTON (June 18, 2026) - The Board of Directors of NSTAR Electric Company, a wholly-owned subsidiary of Eversource Energy, announced the declaration of the following preferred stock dividends payable August 1, 2026 to holders of record as of July 10, 2026:

• A quarterly dividend of $1.0625 per share on NSTAR Electric Company's cumulative preferred stock, 4.25% series; and
• A quarterly dividend of $1.195 per share on NSTAR Electric Company's cumulative preferred stock, 4.78% series.

The Company's preferred stock is quoted on the OTCID Market.

Eversource (NYSE: ES), celebrated as a national leader for its commitment to sustainability and corporate citizenship, is named among America's Most Responsible Companies by Newsweek for 2026 and recognized as the #1 utility on USA Today's list of America's Climate Leaders for 2025. Eversource transmits and delivers electricity and natural gas and supplies water to approximately 4.6 million customers in Connecticut, Massachusetts and New Hampshire.

The #1 Energy Efficiency Provider in the Nation, Eversource harnesses the commitment of more than 10,500 employees across three states to build a single, united company around the mission of safely delivering reliable energy and water with superior customer service. The company is empowering a clean energy future in the Northeast, with nationally recognized energy efficiency solutions and successful programs to integrate new clean energy resources like a first-in-the-nation networked geothermal pilot project, solar, offshore wind, electric vehicles and battery storage, into the electric system.

For more information, please visit eversource.com, and follow us on X, Facebook, Instagram, and LinkedIn. For more information on our water services, visit aquarionwater.com.

CONTACT:
Rima Hyder (Investor Relations)
781-441-8882
[email protected]