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Developers Norway
Stuart Penson
19 July 2023
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Developers to mix and match electrolysers for big projects

Combining alkaline and PEM technologies can deliver significant savings over project lifetimes, says Nel

Developers of large-scale green hydrogen projects are exploring ways to use combinations of different electrolyser technologies at the same facility as they seek to optimise performance, according to Norwegian electrolyser manufacturer Nel. The largest projects could potentially save “hundreds of millions of dollars” over the lifetime of a facility by deploying both alkaline and proton-exchange-membrane (PEM) technologies instead of opting for one or the other, CEO Hakon Volldal told analysts on the company’s second-quarter earnings call. Alkaline is the most established and cheapest technology. PEM is at an earlier stage of development and, as a result, more expensive, but it is gaining pop

Also in this section
Developers eye potential of stimulated hydrogen
17 September 2025
Laboratory and pilot-scale results suggest production route could achieve both low carbon intensity and competitive costs, according to paper published by Oxford Institute for Energy Studies
Germany breaks ranks on green definitions
17 September 2025
Government signals intent to replace EU rules on green hydrogen and to review domestic production targets as it resets country’s energy transition strategy
IEA’s bearish but bullish hydrogen review
12 September 2025
The global project pipeline has contracted for the first time, but production can still achieve strong growth through 2030, the IEA says in its annual review of the clean hydrogen sector
Letter on hydrogen: Achilles heel
10 September 2025
Investment in the supply side has defied the odds to top $100b, but difficulties in generating large-scale demand could undermine the clean hydrogen industry’s future potential

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