Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-1 of our report dated March 31, 2025, relating to the financial statements of Nuvve Holding Corp., appearing in the Annual Report on Form 10-K of Nuvve Holding Corp. for the year ended December 31, 2024. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ Deloitte & Touche LLP 

San Diego, California

January 8, 2026