Exhibit 15.1

Telefon: +49 69 95941-0 Telefax: +49 69 95941-111 frankfurt@bdo.de www.bdo.de

Hanauer Landstraße 115 60314 Frankfurt am Main

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statements on Form F-3 (File No. 333-262281, 333-276788, 333-284850) and Form S-8 (File No. 333-263153) of Ads-Tec Energy PLC (the Company) of our report dated May 15, 2026, relating to the consolidated financial statements, which appears in this Annual Report on Form 20-F. Our report contains an explanatory paragraph regarding the Company’s ability to continue as a going concern.

/s/ BDO AG Wirtschaftsprüfungsgesellschaft

Frankfurt am Main, Germany

May 15, 2026

Chairman of the Supervisory Board: Dr. Holger Otte • Executive Board: WP StB Andrea Bruckner and RA Parwäz Rafiqpoor (Chairpersons) • WP StB Roland Schulz • WP Dr. Jens Freiberg • RA StB Dr. Dirk Elbert

Registered Office: Hamburg (District Court of Hamburg HR B 1981)

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BDO AG Wirtschaftsprüfungsgesellschaft, a German company limited by shares, is a member of BDO International Limited, a UK company limited by guarantee, and forms part of the international BDO network of independent member firms.

BDO is the brand name for the BDO network and for each of the BDO Member Firms. © BDO 2026