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Exploring the Future of Energy Storage and Green Hydrogen in Upper Austria!

Our consortium team, with a delegation from the Bangladesh authorities, were thrilled to visit the world’s first underground hydrogen storage facility in an underground natural gas reservoir.

The ground-breaking “Underground Sun Storage 2030” project, led by RAG Austria AG, is making strides as it transitions to real-scale implementation. In this demonstration project, renewable solar energy is converted into green hydrogen in a climate-neutral way by means of electrolysis and stored in a pure form in former natural gas reservoirs.

During the visit, we explored various aspects of stored hydrogen, its potential as a substitute for fossil natural gas, direct applications in energy-intensive industries, and the processing and utilisation of high-purity hydrogen.

Read more about the entire project at
Thank you to RAG Austria AG and Matthias Greiml for the presentation and the visit!

About Underground Energy Storage Technologies (UEST)

As a centre of excellence, UEST is a strategic partnership of the HOT Energy Group, the ILF Consulting Engineers Austria, RED Drilling & Services, and CAC Engineering. The consortium fuses the individual partners’ decades of specialised know-how and expertise in underground storage technologies.

UEST delivers high-end and cutting-edge solutions for natural gas (UGS), carbon dioxide (CCUS), and hydrogen storage – from prospect assessment and operational planning, drilling, workover, and well engineering, all the way through to handover of storage facilities.


Contact us today to discuss how your underground energy storage projects can benefit from UEST’s decades of expertise!

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