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Hydrogen electrolysis is scrambling to achieve industrial scale as the world cries out for greener fuels—but the technology is already starting to experience growing pains
Green hydrogen is vital for a low-carbon future, but the electrolyser market needed to support it is complex and challenging
INDUSTRIAL HERITAGE Electrolysis has been around since the 1700s and is now being harnessed to address one of the most pressing challenges of our age
DIVERSE TECHNOLOGIES Today’s hydrogen electrolyser market features a wide range of technologies, with few clear leaders
KEY QUOTE Economics will ultimately determine which technologies win ...
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A fully renewable energy future is within reach and storage is definitely required, but it is a combination of measures that will truly make it possible, argues Johan Söderbom of EIT InnoEnergy
Low-carbon hydrogen will almost certainly be needed to cut emissions across a range of hard-to-abate sectors. However, if it is used to solve too many problems, it could end up delaying the energy transition and putting urgent decarbonisation plans in jeopardy
The nuclear sector wants to cash in on the emerging demand for low-carbon energy by powering hydrogen electrolysis, but not everyone is convinced the industry’s arguments stack up
Energy losses in the production process contribute to making hydrogen produced with renewable energy expensive. Companies and researchers are working to improve the efficiency of electrolyser technology and scale it up, bringing down the green hydrogen price tag at the same time
As the energy landscape changes, so too could the geopolitical spectrum. Nations that have derived power and wealth from coal, oil and gas face an adapt-or-die moment while countries with the natural resources central to decarbonisation could find themselves holding more cards
By the end of this decade, Denmark aims to be a net exporter of green energy and fuels, helping Europe meet its net zero ambitions while curbing the reliance on energy imports. It rests on a massive expansion in both renewable energy generation and electrolysers as well as hydrogen infrastructure
North Africa has enough solar and wind energy to easily power the whole of Europe but plans to export renewables generation across the Mediterranean have so far floundered. The burgeoning clean hydrogen sector could change the picture
