World's first geological hydrogen storage facility goes into operation
Large-volume storage of hydrogen enables energy transition while maintaining security of supply. With “Underground Sun Storage“, the world‘s first hydrogen storage facility in an underground porous reservoir, RAG Austria AG – Renewables and Gas – and its project partners are setting new international standards.
Two years after the start of the project, the underground sun storage facility was opened on April 27, 2023.
In this unique cross-sector demonstration facility, solar energy is converted into green hydrogen by water electrolysis and stored in pure form in an underground natural gas reservoir in Gampern, Upper Austria. The scale of the storage corresponds to the summer surplus of about 1,000 photovoltaic systems on family homes. In summer, this surplus energy is stored and in winter the green energy can be provided again in the form of electricity and heat.
“In Gampern in Upper Austria we are demonstrating what is possible and necessary to ensure a secure supply of green energy throughout the year and thus enable the energy transition.”, Mitteregger emphasizes.
Press Release 27 April 2023