Shell Starts up Europe’s Largest PEM Green Hydrogen Electrolyser

By July 2, 2021 6   min read  (996 words)

July 2, 2021 |

Fuel Cells Works, Shell Starts up Europe’s Largest PEM Green Hydrogen Electrolyser
  • The project, backed by a European consortium, will accelerate hydrogen production and contribute to Europe’s goal to achieve climate neutrality.

Europe’s largest PEM hydrogen electrolyser*, today began operations at Shell’s Energy and Chemicals Park Rheinland, producing green hydrogen.

As part of the Refhyne European consortium and with European Commission funding through the Fuel Cells and Hydrogen Joint Undertaking (FCH JU), the fully operational plant is the first to use this technology at such a large scale in a refinery.

Plans are under way to expand capacity of the electrolyser from 10 megawatts to 100 megawatts at the Rheinland site, near Cologne, where Shell also intends to produce sustainable aviation fuel (SAF) using renewable power and biomass in the future. A plant for liquefied renewable natural gas (bio-LNG) is also in development.

 “This project demonstrates a new kind of energy future and a model of lower-carbon energy production that can be replicated worldwide,” Shell’s Downstream Director, Huibert Vigeveno, said at today’s official opening ceremony.

“Shell wants to become a leading supplier of green hydrogen for industrial and transport customers in Germany,” he added. “We will be involved in the whole process — from power generation, using offshore wind, to hydrogen production and distribution across sectors. We want to be the partner of choice for our customers as we help them decarbonise.”

Shell has a target to become a net-zero-emissions energy business by 2050, in step with society. As part of its Powering Progress strategy, Shell plans to transform its refinery footprint to five core energy and chemicals parks. This means Shell will reduce the production of traditional fuels by 55% by 2030.

Shell starts up Europes largest PEM green hydrogen electrolyser 2

The Rheinland electrolyser will use renewable electricity to produce up to 1,300 tonnes of green hydrogen a year. This will initially be used to produce fuels with lower carbon intensity. The green hydrogen will also be used to help decarbonise other industries.

The European consortium backing the project consists of Shell, ITM Power, research organisation SINTEF, consultants Sphera and Element Energy. The electrolyser was manufactured by ITM power in Sheffield, UK, and includes parts made in Italy, Sweden, Spain and Germany.

Armin Laschet, North Rhine-Westphalia’s Minister-President, said: “We are a hydrogen region. With the commissioning of the largest PEM electrolysis plant in Europe, we are further expanding our leading role in this field. We are therefore laying the foundation for a modern and green industry, with highly skilled jobs. Today, 30% of German demand for hydrogen already comes from North Rhine-Westphalia’s industry. Estimates predict that demand will double by 2030. This is why we need innovative solutions that will meet the demand for CO2-neutral hydrogen. Projects such as Refhyne demonstrate how innovation can benefit both the environment and the economy.”

Bart Biebuyck, Executive Director of FCH JU, said: “In order to achieve climate neutrality by 2050, we need to fundamentally reshape our energy system. Clean hydrogen will play a key role in e-mobility and in industry, as it has great potential for decarbonising sectors where direct use of renewable energy is not possible. Accordingly, we want to accelerate the market launch of fuel cells and hydrogen technology and tap into their advantages in Europe.”

Dr Graham Cooley, CEO of ITM Power, said: “We’d like to congratulate our partners on the successful start-up of Europe’s largest green hydrogen production plant. We all recognise that this is just the beginning of the journey to net zero. The next step, Refhyne II, is even bigger and would take us into the hundreds of megawatts for the first time, on our way to gigawatts deployments. The vision and commitment of Shell, North Rhine-Westphalia and the FCH JU show what can be achieved to deliver the world’s commitments on climate change.”

Alexandra Bech Gjørv, president and CEO of SINTEF said: “This is a big step towards a carbon-free future. SINTEF has been heavily involved in European electrolysis research for more than a decade, from fundamental development of materials and components to pilot projects. We are happy to see large-scale implementation as here in Refhyne. The green transition was something we talked about, now it is what we do. The transformation to the low-emission society is happening now and it is scaling up.”


  • The Refhyne project is at the forefront of the effort to produce green hydrogen in Europe. Hydrogen will play a key role in the European Green Deal’s climate targets by helping to decarbonise harder-to-abate sectors such as transport and industry. The European Commission released a landmark Hydrogen Strategy in 2020.
  • Shell is also planning to produce sustainable and synthetic aviation fuel using renewable power and biogenic sources. The 100 MW electrolyser (Refhyne II) and SAF projects are at an advanced planning stage, with final investment decisions still pending. The consortium for Refhyne II has been invited to prepare the associated grant agreement with CINEA1.
  • Shell’s energy and chemicals parks will be highly integrated with chemicals sites to make them even more efficient in producing low-carbon and synthetic fuels, as well as high-value products such as bitumen, lubricants and chemicals.
  • Shell Germany announced plans last year to reduce or compensate carbon emissions by more than a third within a decade – this includes its own emissions and its customers’ greenhouse gas emissions when they use the products it sells. This corresponds to 30 million tonnes per year, or about a tenth of the government’s CO2 reduction target for Germany by 2030.
  • *Polymer electrolyte membrane (PEM) electrolysers are more compact than a conventional alkaline electrolyser. They are suited to working with renewable energy sources because they can operate dynamically using varying loads of electricity. This allows PEM electrolysers to operate when wind and solar energy generation are cheapest.

1 The invitation to the grant agreement preparation should not be regarded under any circumstances as a formal commitment by CINEA to provide financial support, as this depends on the satisfactory and timely conclusion of grant agreement preparation.

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