Advances in Geosciences
Advances in Geosciences
ADGEO
Articles | Volume 67
Articles | Volume 67
https://doi.org/10.5194/adgeo-67-15-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/adgeo-67-15-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 67
10 Oct 2025
 | 10 Oct 2025

Preliminary laboratory studies on hydrogen storage in a salt cavern of the Eocene Barbastro Formation, Southern Pyrenees, Spain

Timea Kovács, José Mediato, Berta Ordóñez, Nuria Garcia-Mancha, Pablo Santolaria, Pablo Calvín, José Sanchez Guzman, Jesús Gracia, Sara Roces, Pilar Mata Campos, and Edgar Berrezueta

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Short summary
This study explores how rock salt reacts to hydrogen, aiming to support safe underground storage of renewable energy. Lab tests on samples from a potential salt cavern-type site in Spain showed that hydrogen caused no major changes to the rock. Minor effects were limited and did not impact overall stability. These findings help confirm that storing hydrogen in salt formations is a safe and reliable option for future energy systems.
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