PROJECTS

Hydrogen storage: NWN visits hydrogen drying plant and test cavern near Berlin

The storage of green hydrogen plays a central role in the development of the hydrogen economy. In order to be able to feed the hydrogen back into the pipeline network after it has been stored in the caverns, it must first be dried. In this context, Bilfinger has developed a demonstration plant in which the hydrogen is freed from moisture through absorption. The drying plant is currently in operation in Rüdersdorf near Berlin. There, EWE is testing is testing hydrogen storage in an underground cavern storage facility. The findings from this project will eventually be transferred to caverns in Lower Saxony with 1,000 times the volume.

NWN expert Jörg Schrickel visited the drying plant on February 27 together with colleagues from the NBank in Rüdersdorf and was informed about the progress of the project. It became clear that the test operation of the Bilfinger drying plant is fully on schedule and on budget. "The drying system is working very well, even better than expected," reports Jörg Schrickel from discussions with the project managers.

The first withdrawal of hydrogen from the test cavern is currently taking place. In order to gain further experience, two further injection and withdrawal cycles are planned in Rüdersdorf before Bilfinger moves the drying plant to the storage facility in Krummhörn in Lower Saxony. In cooperation with Uniper, further tests on hydrogen storage on a larger scale are to be carried out there.

• You can find out more about Bilfinger's drying system here and at Bilflinger. 
• You can find out more about EWE's storage project in Rüdersdorf here.
• You can find out more about the hydrogen storage facility in Krummhörn here.

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