Hydrogen storage facilities will play a central role in the future energy system, as they contribute to flexibility and security of supply. The levelized cost of storing hydrogen in underground salt caverns could be between €0.66 to €1.75/kg related to the amount of hydrogen discharged. In a European comparison, due to the geological conditions, Germany has the greatest potential for salt caverns, i.e., underground, artificial caves in salt formations.
The analysis “The importance of hydrogen storage – An analysis of needs, potentials and costs” by the Institute of Energy Economics at the University of Cologne (EWI) discusses these and other aspects of hydrogen storage, focusing on salt caverns. The analysis was funded by the Gesellschaft zur Förderung des Energiewirtschaftlichen Instituts an der Universität zu Köln e.V.
