Safe, efficient, and cost-effective storage systems are essential for managing supply and demand, enabling the use of hydrogen in remote areas, and supporting seasonal energy storage, which can be particularly valuable with growing variable renewable energy production. Storage also allows for increased flexibility in the hydrogen supply chain by supporting transportation, grid balancing, and backup power applications.
According to the UK’s Hydrogen Transport and Storage Networks Pathway, hydrogen transport and storage infrastructure is critical in supporting the country’s hydrogen production ambitions by 2030 as it connects producers with consumers, balancing misalignment in supply and demand.
At present, one emerging large-volume hydrogen storage method is using underground salt caverns in areas where the geology is suitable. The UK is currently developing 0.025 TWh of salt cavern hydrogen storage, with two notable projects – HyKeuper in the northwest and Aldbrough near the Humber – which is set to add a further 1.3TWh and 0.5TWh storage capacity, respectively.
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