Plug Power Inc. (NASDAQ: PLUG) has completed the first phase of hydrogen supply delivery for the H2CAST (Hydrogen Cavern Storage Transition) project in Germany.
Announced on Wednesday, the company provided 44.5 metric tons of hydrogen between April and August 2025, meeting all safety and delivery requirements.
H2CAST is a joint project between Gasunie, an energy infrastructure operator in the Netherlands and North West Germany, and STORAG ETZEL, Germany’s largest independent supplier of cavern storage facilities. Together, they are converting two existing salt caverns into underground hydrogen storage sites.
These salt caverns can hold large amounts of renewable hydrogen and act as seasonal energy reserves. They also help balance electricity grids and improve the stability of renewable power systems. This project supports Europe’s broader effort to build a reliable hydrogen infrastructure and strengthen its clean energy transition.
Following the successful first phase, Plug Power also received a second contract to deliver an additional 35 metric tons of hydrogen to H2CAST.
In addition, the hydrogen will continue to come from Hy2Gen ATLANTIS in Werlte, Germany. Plug Power holds exclusive rights to 100 per cent of the green hydrogen produced at the site. Furthermore, the company’s performance proved that hydrogen can be safely transported and stored on a large scale in Germany.
“The success of our recent projects in Germany with H2CAST show that hydrogen works, and that it is scalable for strategic national energy requirements,” said Jose Luis Crespo, President and CRO of Plug.
“Plug’s ability to deliver hydrogen on time, at volume, and with our own transport and delivery equipment for our customers underscores Plug’s leadership in Europe’s fast-growing hydrogen economy.”
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The fleet provides flexible and scalable transport system
Plug Power’s success in Germany is part of its strategy to build large-scale hydrogen production networks across the EU. Furthermore, the company operates 36 Multi Element Gas Containers (MEGCs), rated for high pressure between 350 and 380 bar.
This fleet provides a flexible and scalable transport system, allowing Plug Power to meet growing demand across different markets. Additionally, the company continues to increase its hydrogen production capacity to support industrial and energy customers seeking sustainable fuel alternatives.
The expansion of the H2CAST project also shows Plug Power’s strong engineering capabilities. Its Netherlands-based team designed a specialized unloading skid that connects directly to the customer’s existing system.
This solution allows trailers to unload hydrogen efficiently while maximizing the value for customers. Furthermore, it highlights Plug Power’s ability to customize equipment and adapt to complex project requirements.
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joseph@mugglehead.com
