Salt caverns to be investigated for energy storage in Denmark

Gas Storage Denmark and Nobian Dansk Salt have signed an MoU to explore opportunities for the development of salt caverns for energy storage in Denmark.

With hydrogen emerging, its storage is expected to play a crucial role both in terms of ensuring a sustainable supply as well as delivering flexibility to the grid on a long term basis.

Building on its experience with high pressure gas storage in the subsurface, Gas Storage Denmark, subsidiary of Denmark’s TSO Energinet, is to explore opportunities for the development of salt caverns for its storage and potentially that of other energy vectors with Nobian Dansk Salt.

For its part Nobian Dansk Salt, part of Netherlands headquartered Nobian, brings extensive experience in salt production and salt cavern development.

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Martin Christensen, Gas Storage Denmark's CEO, commented that in a future green energy system, where a significantly larger share of production will come from variable sources such as wind and solar, the challenge of balancing the energy system will be greater.

“Green hydrogen produced from renewable energy sources, together with hydrogen storage, is expected to play a crucial role. Not only in terms of ensuring a stable supply of green fuels, but also in maintaining a constant balance between electricity production and consumption. Gas Storage Denmark has decades of experience with energy storage, and together with Nobian Dansk Salt, we will explore new opportunities to support the green transition.”

Michael Koenig, CEO of Nobian, adds that Nobian Dansk Salt is uniquely positioned to contribute to the hydrogen infrastructure and economy.

“To build sustainable hydrogen value chains, we need to promote knowledge sharing, research, technological innovation and infrastructure development. This collaboration, which is the first hydrogen storage collaboration between partners in the Netherlands and Denmark, addresses the need to develop hydrogen storage solutions in Denmark.”

In a statement the companies state that by exploring the development of hydrogen storage in salt caverns, they want to support and fulfil Denmark's great potential for renewable energy and position the country as a leading hub for hydrogen in the Nordic region.