Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement No. 333-274943 on Form S-8 of our report dated June 13, 2024, appearing in this Annual Report on Form 11-K of Eversource 401k Plan for the year ended December 31, 2023.

By:  /s/ Fiondella, Milone & LaSaracina LLP

Glastonbury, Connecticut

June 13, 2024