Release Details

BOSTON (September 15, 2026) – The Board of Directors of NSTAR Electric Company, a whollyowned subsidiary of Eversource Energy, announced the declaration of the following preferred stock dividends payable November 1, 2026 to holders of record as of October 9, 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 to approximately 4 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 firstin-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.

CONTACT:
Rima Hyder (Investor Relations)
781-441-8882
rima.hyder@eversource.com