Gobierno de Aragón

Natural, or white, hydrogen refers to molecular hydrogen that is produced in the Earth’s subsurface by geological and geochemical processes and accumulates in rock formations or is dissolved in deep aquifers, rather than being manufactured at the surface through industrial processes.[10] In the Lorraine basin, drilling has confirmed significant dissolved hydrogen in Carboniferous formations, with initial measurements showing 15% hydrogen in fluids at around 1,093 m and modelling suggesting very high concentrations at greater depths, which could translate into tens of millions of tonnes in place if basin‑wide estimates hold.[10]

Province of Huesca, Aragón

Early‑stage exploration project in which Grupo SAMCA seeks to investigate the presence and potential exploitation of natural (white) hydrogen in subsurface formations in the province of Huesca, Aragón, through six newly granted research permits complementing earlier authorizations.