OMV, Siemens Energy, and STRABAG Lay Foundation for One of Europe’s Largest Green Hydrogen Plants
OMV, in partnership with Siemens Energy and STRABAG, has laid the foundation stone for a 140 MW green hydrogen electrolysis plant in Bruck an der Leitha, Austria. Scheduled to begin operations at the end of 2027, the plant will be the largest in Austria, the biggest in South-Eastern Europe, and among the five largest in Europe.
Once operational, the facility will produce up to 23,000 tons of green hydrogen annually using renewable energy from wind, solar, and hydropower. This will significantly reduce carbon emissions at OMV’s Schwechat refinery—by up to 150,000 tons per year, equivalent to roughly 10% of the refinery’s current production-related emissions.
OMV is investing a mid-triple-digit million euro sum in the project, which includes constructing a 22-kilometer hydrogen pipeline connecting the plant directly to the Schwechat refinery. The plant has already secured both operating and building permits and is under review for funding support by the European Hydrogen Bank, with a funding agreement expected by the end of 2025 in coordination with Austria Wirtschaftsservice GmbH (aws).
The project underscores OMV’s leadership in green hydrogen production within the European refinery sector. Building on experience with its existing 10 MW electrolyzer in Austria, OMV’s new plant will implement state-of-the-art electrolysis technology, delivered under an EPC contract by Siemens Energy, while STRABAG handles the civil construction. Siemens Energy will provide the technical planning and key components, including electrolysis stacks, transformers, rectifiers, and compressors to split water into hydrogen and oxygen using renewable energy.
This initiative marks another milestone on the path toward a climate-neutral energy future and strengthens Austria’s role in advancing sustainable hydrogen technologies.
STRABAG will bring extensive expertise in the planning and construction of industrial infrastructure. In addition to the groundwork, the company will be responsible for constructing all buildings on the site.
