It is " a world first: a borehole drilled to a depth of over 3,600 m, "To date, the deepest in the world", helped to confirm the "significant presence" Natural hydrogen has been discovered in the subsoil of Moselle, according to information released Tuesday, March 24, 2026, by Française de l'énergie (FDE), the company conducting the research. This announcement confirms the hopes expressed in February.
It was in Pontpierre, a village of 800 inhabitants about forty kilometers east of Metz, that a 41-meter-high drilling platform, brought from Austria, was erected this winter to drill to a depth of 3,655 meters.
Naturally dissolved hydrogen, also called white or native hydrogen, is naturally present in the groundwater of the Lorraine basin, according to researchers who discovered three years ago what could be "the world's largest reserve of natural hydrogen", according to them.
This presence was "confirmed over numerous intervals, continuing the discovery made at Folschviller", six kilometers away, in 2023, welcomed the FDE.