Nobian, in collaboration with EnergyStock BV, a 100% subsidiary of Gasunie, has reached a significant milestone in the HyStock Waterstofopslag initiative. With all necessary permits now secured, the project has entered a new phase since preparations began for the first evaluation drillings in Zuidwending, in the northern Netherlands.

These initial drillings mark the start of developing three new underground salt caverns designed for large-scale hydrogen storage. In addition, a second borehole will be drilled in an already developed fourth cavern, laying the groundwork for its future use in hydrogen storage. 

Salt caverns are uniquely suited for storing hydrogen due to their geological stability, high sealing capacity, and ability to handle frequent injection and withdrawal cycles. Formed by solution mining in underground salt formations, these caverns can be engineered to safely contain large volumes of hydrogen under high pressure. Their flexibility and responsiveness make them ideal for balancing fluctuations in energy supply and demand. 

Hydrogen storage plays a vital role in the energy transition. As the Netherlands and Europe move toward energy systems powered by renewable sources, the ability to store green hydrogen becomes increasingly critical. It allows for balancing supply and demand within the hydrogen network, stabilizing the energy grid, and storing surplus solar and wind energy for use during periods of low production. 

Zuidwending offers ideal geological conditions for this type of storage. The salt caverns enable rapid injection and withdrawal of hydrogen, making them a key asset in ensuring energy reliability and flexibility.