Uniper SE, a Düsseldorf-based energy company, has unveiled its Hydrogen Pilot Cavern (HPC) Krummhörn in Lower Saxony, Germany. This storage facility for green hydrogen marks a significant milestone in the preparation for commercial hydrogen storage projects. With a volume of 3,000 cubic meters, the HPC Krummhörn is among the first of its kind, boasting a storage capacity of nearly 500,000 norm cubic meters. The project, along with the HyStorage in Bavaria, focuses on storing a gas mixture of natural gas and hydrogen in a pore storage facility to address seasonal energy demand fluctuations. According to Uniper, the facility is scheduled to undergo a gas tightness test before commencing trial operations. CEO Michael Lewis emphasized the importance of energy storage, particularly in balancing out renewable energy fluctuations. He highlighted hydrogen's role in ensuring energy availability and decarbonization, stressing the need for large-scale storage solutions. The company plans to expand the Krummhörn site to offer a storage capacity of 250 GWh initially, aiming for up to 600 GWh by 2030. Uniper intends to conduct various injection and withdrawal cycles to test equipment compatibility with hydrogen. The company's investment in the project is significant, supported by funding from the Lower Saxony Ministry for the Environment, Energy, and Climate Protection. The pilot project aligns with the hydrogen directive and demonstrates Uniper's commitment to a sustainable energy future through innovative storage solutions.