Utilizing Underground Caverns as Energy Storage for Future Energy Systems: Challenges for Grid Integration

Abstract

This paper provides the description of the research questions in the Hydrogen Cavern for Mobility (HyCAVMobil) project with a focus on power grid integration. The goal regarding the utilization of an underground cavern as energy storage for future energy systems is to research the interdependencies between underground-hydrogen-storage (UHS) facilities and the electrical power grid. This project presents the future concept for storing hydrogen in an underground salt cavern. This can later be used for mobility, industry and electrical power generation in times with high electrical energy demand. During the future work of the ongoing HyCAVMobil project, this concept will consider the real power grid infrastructure and influence of grid congestions on the storage cycle of hydrogen. The paper presents first findings from the 110 kV power grid simulation model, which was developed using the open access (open_eGo) data.