Find out more about the diverse and innovative possibilities of underground hydrogen storage in this informative interview between Kevin O'Donovan and Christian Kosack, Manager Storage Intergrity Systems at Uniper. Among other things, the discussion focuses on the innovative HPC project (Hydrogen Pilot Cavern Krummhörn) in northern Germany, which impresses with its pioneering work in the field of hydrogen caverns, as well as hydrogen storage options in porous rock formations in southern Germany. In addition, it will discuss why the much-needed technology for these storage options is not yet fully available and what ambitious steps are being taken to overcome these challenges in the future.