OMV opens Austria’s largest green hydrogen plant

OMV put into operation its green hydrogen plant in Schwechat near Vienna. The facility can produce 1,500 tons per year.

OMV is producing green hydrogen on a commercial scale for the first time. The Vienna-based fossil fuel and petrochemicals producer started up a 10 MW plant at its Schwechat refinery near Austria’s capital. It is the largest in the country.

The investment amounts to EUR 25 million. The electrolyzer system can produce up to 1,500 tons per annum. OMV said the green hydrogen would be used to make more sustainable fuels and chemicals including sustainable aviation fuel (SAF) and renewable diesel (HVO).

PEM electrolyzer uses wind power, hydropower, photovoltaics

The new 10 MW polymer electrolyte membrane (PEM, also called proton exchange membrane) electrolyzer is powered entirely by renewable electricity. It is generated by wind power, hydropower plants and photovoltaics.

The innovation enables annual savings of up to 15,000 metric tons of carbon dioxide emissions, according to the comparator from the European Union’s Renewable Energy Directive. It is equivalent to 2,000 persons per year, based on the EU’s 2024 average of 7.5 tons of CO2 equivalent per capita.

“With the start-up of Austria’s largest electrolysis plant, we are re-inventing how essentials we use in everyday life are produced sustainably. Green hydrogen is at the heart of this transformation, serving as a critical component in producing fuels and chemicals while advancing the decarbonization of our Schwechat site,” said board member Martijn van Koten, responsible for fuels, feedstock and chemicals.

Green hydrogen project is step toward making OMV carbon neutral

The majority owner of Romanian OMV Petrom aims to cut its net emissions to zero by 2050. Its transformation is based on projects including for geothermal energy and chemical recycling. Green hydrogen can be utilized in the production process in refineries.

The green hydrogen plant is certified for producing renewable fuels of non-biological origin (RFNBOs).

Making green hydrogen through PEM electrolysis involves splitting water into hydrogen and oxygen using renewable electricity. At the anode, oxygen and positively charged hydrogen protons are generated. The protons pass through the PEM, and at the cathode, they combine with electrons to form hydrogen gas.