Study: Finland explores underground hydrogen storage in crystalline bedrock
A new Finnish study suggests that large-scale underground hydrogen storage can be developed in crystalline bedrock. This finding offers an alternative for regions lacking salt caverns.
Finland is exploring the feasibility of large-scale underground hydrogen storage facilities. Research conducted by VTT Technical Research Centre of Finland and the Geological Survey of Finland (GTK), in collaboration with companies involved in Finland's hydrogen sector, indicates that crystalline bedrock is a viable medium for such storage.
As the production of renewable hydrogen scales up across Europe, the need to balance its production with consumption becomes increasingly important. Underground hydrogen storage is crucial for managing these fluctuations. Historically, storage solutions have often relied on salt caverns, but this Finnish research expands the potential geological options.
The study's findings are particularly significant for countries and regions that do not possess natural salt formations suitable for storage. Crystalline bedrock presents an alternative and potentially extensive geological resource for developing hydrogen storage capacity, which could support the broader adoption of green hydrogen and the industrial transition.
These results lay the groundwork for further research and pilot projects aimed at confirming the technology's practical functionality and safety. The development of a robust hydrogen economy necessitates reliable and cost-effective storage solutions, and this research contributes to achieving that goal.