Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form F-3 of BrenX Ltd. (formerly known as Brenmiller Energy Ltd.) of our report dated March 25, 2026 relating to the financial statements, which appears in Brenmiller Energy Ltd.’s Annual Report on Form 20-F for the year ended December 31, 2025. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

Certified Public Accountants (Isr.)

A member of PricewaterhouseCoopers International Limited

Tel-Aviv, Israel

September 25, 2026 

Kesselman & Kesselman, 146 Derech Menachem Begin St. Tel-Aviv 6492103, Israel,

P.O Box 7187 Tel-Aviv 6107120, Telephone: +972 -3- 7954555, Fax:+972 -3- 7954556, www.pwc.com/il