European Underground Hydrogen Storage Reference System

EUH2STARS is an ambitious European flagship project that will make a significant contribution to the research and implementation of underground hydrogen storage facility and strengthen Europe's position as a pioneer in the field of sustainable infrastructure.

The project was initiated by RAG Austria AG and comprises an international consortium with a project duration of 5.5 years. The aim is to raise a demonstration storage facility for hydrogen in Upper Austria to a TRL 8 level (Technology Readiness Level) and to apply the knowledge gained to replication systems. This project is funded by the Clean Hydrogen Partnership as part of the HORIZON-JTI-CLEANH2-2023-02-1 - Large-Scale Demonstration of Underground Hydrogen Storage program.

A component for a resilient hydrogen network

For a resilient and secure hydrogen infrastructure in Austria, it is crucial to provide appropriate hydrogen storage facilities. The H2 Roadmap, which is based on the industry's hydrogen requirements, acts as a guideline for the development of the hydrogen infrastructure in Austria and already takes specific storage scenarios into account. The H2 Roadmap recognizes the central role of storage for security of supply. As part of the EUH2STARS project, AGGM is working as part of the consortium on a hydraulic model that represents the integration of hydrogen storage in Upper Austria into the hydrogen network. The market-oriented and operational concept developed for the underground storage facility aims to integrate it efficiently and sustainably. The calculations for the concept are based on profiles from decentralized production, consumer profiles, seasonal storage, and the connection to the European Hydrogen Backbone (EHB) for the import and export of hydrogen. This comprehensive approach ensures the economic integration of the storage facilities into the hydrogen network.

Further information and all project partners can be found on the project homepage at

This project has received funding from the Clean Hydrogen-Partnership and its members
DI Helmut Wernhart Teamleiter Infrastrukturentwicklung AGGM

DI Helmut Wernhart

Project Lead