Preview: Hydrogen electrolyser technologies


Four years ago, at the 21st Conference of the Parties (COP21), the world’s nations united in a single agreement on tackling climate change for the first time in history. The Paris Agreement saw 195 countries adopt the first-ever universal, legally binding global climate pact, agreeing on a worldwide plan to limit global warming to well below 2°C.

Hydrogen is being positioned as a central pillar in this future energy transition, as affirmed by Pierre-Etienne Franc, Vice-President of Air Liquide Hydrogen Energy WBU & Secretary of the Hydrogen Council, at gasworld’s Clean Energies Conference in Amsterdam last year: “All industries are being faced with the need to decarbonise their sectors…It is possible to make, out of hydrogen, the energy vector of the future.”

Whilst the idea of a Hydrogen Economy is nothing new, there is now clear credence and gravitas in this business, with not just an ongoing series of project announcements but the arrival of some of the biggest and most recognisable names in the energy and automotive sector – and beyond.

Hydrogen from electrolysis is among the most exciting of growth spaces right now. To put it simply, hydrogen gas produced via the electrolysis of water involves splitting water into its constituents of hydrogen and oxygen. This is essentially the opposite of fuel cell technology, whereby oxygen and hydrogen (from a supply) are converted into electrical energy and heat.

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