The HPC Krummhörn project in Germany, focused on green hydrogen storage, began its trial operation with a gas tightness test and planned first gas filling. The project aims to explore and test the full utilization of a salt cavern specifically built for green hydrogen storage under operational conditions. The official launch saw national and international guests from various sectors participating in the event, demonstrating significant interest in the project. Key stakeholders, including Olaf Lies, emphasized the pivotal role of hydrogen in ensuring energy supply security and decarbonisation. They highlighted the necessity of large-scale storage options to support the successful integration of hydrogen into energy networks. The project's ambition to expand storage capacity to 250 GWh initially and up to 600 GWh by 2030 aligns with the development of the European hydrogen economy. The event also included an information day for residents, attracting around 300 attendees who engaged with experts on energy industry topics. The need for a reliable regulatory framework and investment incentives was underscored by industry leaders to facilitate the development of hydrogen storage solutions efficiently. The project's strategic location in Lower Saxony and plans for further expansion along the hydrogen core network position it as a prospective leader in the European hydrogen economy. By investing in large-volume hydrogen storage facilities and advocating for a cost-efficient regulatory approach, the project aims to make a substantial contribution to the decarbonisation of industries and enhance economic competitiveness globally.