The implementation of HyPSTER, the first green hydrogen storage demonstrator in a salt cavern located in Etrez, near Lyon (France), is progressing. Since 4 March 2023 and until mid-April, site operator Storengy has been carrying out work-over operations aimed at changing the equipment in the salt cavern for equipment compatible with hydrogen.
Press release – HyPSTER goes into work-over, a decisive stage for the first hydrogen storage demonstrator
![HyPSTER Workover HyPSTER Workover](https://hypster-project.eu/wp-content/uploads/2023/04/4.jpg)