# OSMO to supply water treatment for EWE's 320 MW electrolysis plant

OSMO Membrane Systems GmbH has been awarded a contract by EWE Hydrogen GmbH to supply a water treatment system for a 320 MW green hydrogen electrolysis plant in Emden, Germany, expected to start production by end of 2027.

- Type: Contract
- Announced: 2025-12-15
- Where: Emden, Lower Saxony, Germany
- Status: announced
- Capacity: 320 MW
- Products: water treatment system for electrolysis, green hydrogen
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md), [Water Treatment Equipment](https://endata.com/sectors/water-treatment-equipment.md)

## Companies

- [OSMO Membrane Systems](https://endata.com/companies/89143.md) (supplier)
- [EWE Hydrogen](https://endata.com/companies/89144.md) (customer)

## Sources

- [greentech.at](https://www.greentech.at/osmo-technologie-fuer-eine-der-groessten-elektrolyseanlagen-europas/), 2025-12-15: "OSMO Membrane Systems GmbH, ein hochspezialisiertes Unternehmen der GAW-Gruppe, freut sich über den Auftrag der EWE Hydrogen GmbH / EWE AG die nachhaltige und hocheffiziente Wasseraufbereitung zur Herstellung von Reinstwasser für die Elektrolyse Ostfriesland planen und liefern zu dürfen."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.