France is making significant strides in the realm of hydrogen storage by focusing on utilizing salt caverns for the medium-term storage of hydrogen. Led by Storengy, the 'Hypster' project has demonstrated the feasibility of storing hydrogen in salt caverns, showcasing its potential for large-scale deployment. Tests conducted at the Étrez site in Ain confirmed the commercial viability of this method. The successful injection and withdrawal cycles of hydrogen into the cavern further validate its practicality. This development aligns with France's national hydrogen strategy, which underscores the importance of large-scale storage solutions like salt caverns to accelerate the decarbonisation of industries and support energy production. The country recognizes the economic value of developing storage capacities and connecting them to regional hydrogen hubs, as highlighted in a joint study. Engie, a key player driving these initiatives, is pushing for a clearer regulatory framework to support hydrogen storage activities. The establishment of France's first hydrogen storage facility in salt caverns, with plans for expansion near industrial hubs, signifies a pivotal step towards establishing a robust hydrogen infrastructure. As France continues to update its hydrogen strategy, the focus on storage solutions like salt caverns is poised to play a crucial role in the country's transition towards a greener energy landscape.