Underground Sun Storage 2030 - Start

Press Releases

Seasonal electricity storage in the form of hydrogen ready for scale-up

16.05.2025 | Press release

The demo operation of hydrogen production and storage in the USS2030 project has been successfully completed, showing that it is technically possible to offer hydrogen storage services on a scaled and commercial basis in depleted underground gas reservoirs.

Underground Sun Storage: World's first geological hydrogen storage facility goes into operation

27.04.2023 | Press release

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.

„Underground Sun Storage 2030“: Store solar energy seasonally and on large scale in the form of hydrogen, use existing infrastructure – for a secure renewable energy landscape

08.06.2021 | Press release

In the lead project "Underground Sun Storage 2030" (USS 2030), the safe, seasonal and large-scale storage of renewable energy in the form of hydrogen in underground gas reservoirs is being developed. In addition, all partners involved in the project will jointly gain valuable technical and economic knowledge for the development of a secure hydrogen supply.