Hydrogen storage in salt caverns. Storengy Deutschland operates six natural gas storage facilities throughout Germany – three of which are cavern storage facilities in the north-west of the country. From a geological point of view, they are ideally located to create new salt caverns there. In addition, existing salt caverns that are currently used for natural gas storage can also be converted for hydrogen use. Storage in salt caverns offers flexibility to balance fluctuations in production and consumption. Storengy Deutschland can draw on decades of experience in storing natural gas and has extensive expertise in delivering highly complex industrial projects, including the planning, approval, construction and operation of underground and surface storage facilities.