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Electrolyzers

For low carbon hydrogen production

Electrolyzers represent an exciting technology that can drive the flexible and clean delivery of energy – a key component of progress towards a lower carbon world. 

When combined with renewable power, electrolyzers can supply low carbon hydrogen to many potential applications, for mobility and across a wide spectrum of industrial sectors. Many of these sectors are already under intense regulatory, market and public pressure to reduce their greenhouse gas emissions.

Technology insight and experience

Air Liquide has access to all electrolyzer technology platforms and is currently operating both  principal electrolyzer technologies – alkaline technology and Proton Exchange Membrane (PEM) – at market leading size. 

With extensive project experience across the spectrum of electrolysis technologies, we now have more than 35 electrolyzer units in operation worldwide. 

Since 2018, Air Liquide has been operating a MW-class PEM electrolyzer in Denmark that has demonstrated that power-to-hydrogen is a valid path to balance the grid, store renewable energy and transfer it into clean transportation and industry. At the beginning of 2021, Air Liquide started up the world’s largest PEM plant, at Bécancour in Canada, with a 20 MW capacity for the production of low carbon hydrogen combined with liquefaction to facilitate energy transport. Powered by 99% renewable energy, the plant avoids the emission of 27,000 tonnes of CO2 per year compared to traditional hydrogen production processes. 

Furthermore, Air Liquide and Siemens Energy signed a Memorandum of Understanding in February 2021 to combine expertise in PEM electrolysis technology with the intention to focus activities on the co-creation of large industrial-scale hydrogen projects in collaboration with customers, laying the ground for mass manufacturing of electrolyzers in Europe, especially in Germany and France, and R&D activities to co-develop next-generation electrolyzer technologies.

Air Liquide brings unique experience to the market in the design, construction and operation of water electrolyzers, as well as access to different core technologies and world-class project execution capabilities. We can therefore deliver optimal and tailor-made solutions for our customers. 

An integral part of our offer

Electrolyzer technology is an integral part of our offer to support customers in managing the energy transition. As a route to low carbon energy, electrolysis is complemented by other Air Liquide carbon management technologies such as CO2 capture methods, including Cryocap™  FG/Oxy, Amine wash, and Rectisol for different flue gas compositions; CO2 utilization including compression, liquefaction and methanol synthesis integration. It also complements our expertise across the hydrogen value chain, which encompasses hydrogen production, purification, compression and liquefaction. 

At Air Liquide, we have strong competencies with a range of technologies, including R&D, engineering disciplines and manufacturing expertise, and gas safety management – enabling us to contribute to the next generation of electrolyzers.

World’s largest PEM plant in Bécancour, Canada, with a 20 MW capacity for the production of low carbon hydrogen