voestalpine and VERBUND launch expanded H2FUTURE hydrogen pilot plant in Linz

2 October 2026 |

The internationally renowned H2FUTURE research project at the voestalpine site in Linz is entering the next expansion stage. Enhancements to the pilot plant made over the past three years allow the two project partners—international steel and technology group voestalpine and Austria’s leading energy company VERBUND—to conduct research not only into production but also the compression, purification, storage, loading, and further use of green hydrogen. To this end, the plant at the voestalpine site, which went into operation in 2019 as the world’s largest hydrogen pilot plant, will be expanded to include a compression and purification unit as well as five hydrogen storage tanks. The expansion costs amount to EUR 16.4 million.

In addition to production of green hydrogen, the H2FUTURE-Follow-Up project is now increasingly focusing on its treatment and provision for industrial applications, particularly with regard to such quality characteristics as purity and pressure. Specifically, the hydrogen generated by electrolysis is compressed, purified, and temporarily stored in the expanded H2FUTURE plant. Four of the five new hydrogen storage tanks will balance out the fluctuating levels of hydrogen production and consumption, thus contributing to security of supply. From the end of 2027, the fifth (shipping) tank will directly supply the HY4SMELT industrial-scale demonstration plant—Austria’s largest climate protection research project at voestalpine’s Linz site—with hydrogen via an approximately 1 kilometer-long pipeline.

With greentec steel we have a clear strategy to transform our steel production. In the first half of 2027, one green electricity-powered electric arc furnace at each of the Linz and Donawitz sites will go into operation, enabling us to save up to 30% of our CO2 emissions by 2029 as a first step. In the long term, we aim to achieve net-zero CO2 emissions in steel production by 2050. Hydrogen will play an important role in this process. Together with our partner VERBUND, we will gain further crucial insights thanks to this research infrastructure, the only one of its kind in Europe.

Herbert Eibensteiner, CEO of voestalpine AG

In addition, the hydrogen can be compressed to up to 500 bar using high-pressure compressors and filled into trailers for road transport. As a result, it will also be available to external customers and other research and industrial projects, such as the SuSteel research project at the voestalpine site in Donawitz (which sources hydrogen supplied from a trailer provided by research partner K1-MET).

“With H2FUTURE, together with our long-standing partner voestalpine we are implementing an important reference project for the development of a green hydrogen economy. On an industrial scale, the project shows how renewable electricity can be converted into green hydrogen and harnessed for specific industrial applications. Thus, H2FUTURE directly supports our role as a leading producer of renewable energy and as a partner for decarbonizing energy-intensive industries,” says Michael Strugl, CEO of VERBUND AG.

The first functional tests in the H2FUTURE follow-up project have already been launched. First research results are expected by the end of 2026. The project will end in December 2030 and will be funded by the Austrian Federal Ministry of Economy, Energy and Tourism.

H2FUTURE—the world’s longest-running hydrogen pilot facility

The H2FUTURE plant, which has been in operation since 2019, is one of the world’s longest-running proton exchange membrane (PEM) electrolysis plants. It consists of 12 stacks, each containing 50 electrolysis cells, and has a connected load of six megawatts. The plant can produce 1,200 cubic meters of green hydrogen per hour. Since going into operation, it has produced almost 2,000 tons of green hydrogen and carried out numerous test programs. A “stress test” confirmed the load capacity of the plant in continuous operation and its ability to react quickly to large load changes. It is used in particular to balance out frequency fluctuations in the power grid caused by the irregular availability of renewable energy or varying electricity demand.

The voestalpine Group

voestalpine is a globally leading steel and technology group with a unique combination of materials and processing expertise. voestalpine, which operates globally, has around 500 Group companies and locations in more than 50 countries on all five continents. The voestalpine Group has been listed on the Vienna Stock Exchange since 1995. With its premium products and system solutions, voestalpine is a leading partner to the automotive and machinery industries, as well as to the aerospace and energy industries. The company is also the global market leader in railway systems and special sections. voestalpine is committed to the global climate goals and has a clear plan for transforming steel production with its greentec steel program. In the business year 2025/26, the Group generated revenue of EUR 15.1 billion, with an operating result (EBITDA) of EUR 1.5 billion; it has around 48,800 employees worldwide.

About VERBUND

VERBUND is Austria’s leading energy company and one of the largest producers of hydroelectricity in Europe. The Group generates around 95% of its electricity from renewable energy, primarily from hydropower. VERBUND trades electricity in 12 countries and generated around €1,489m group result and around €2,737m in EBITDA in 2025 with approximately 4,400 employees. With its subsidiaries and partners, VERBUND is active in the generation of electricity, transmission and in international trading and sales. VERBUND has been quoted on the Vienna Stock Exchange since 1988 with 51% of the share capital being held by the Republic of Austria. More information: www.verbund.com

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