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Hydrogen can be stored in salt caverns for months at a time with no energy losses

Hydrogen storage in salt caverns offers a highly efficient and reliable solution for long-term energy storage. Hydrogen can be stored for extended periods, spanning several months, without incurring any energy losses. This is because salt caverns, naturally impermeable and geologically stable, prevent hydrogen from escaping or reacting with surrounding materials.1 The incredibly low leakage rate and the fact that hydrogen does not self-discharge the way batteries do ensures that the stored hydrogen retains its full energy potential until it is needed, making it an ideal option for balancing seasonal variations in energy demand and supply.2

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Footnotes​

  1. Frazer-Nash Consultancy. (2022). Fugitive hydrogen emissions in a future hydrogen economy. UK Government. ↩

  2. Balaraman, K. (2020, October 12). To batteries and beyond: With seasonal storage potential, hydrogen offers ‘a different ballgame entirely. Utility Dive. https://www.utilitydive.com/news/to-batteries-and-beyond-with-seasonal-storage-potential-hydrogen-offers/584959/ ↩