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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
EU frets over China’s green hydrogen progress
5 December 2025
European Commission highlights rapid growth of Chinese production this year, as it retains strict procurement rules in latest European Hydrogen Bank subsidy auction
Letter from London: BP’s East Coast demand warning
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Oil major cites deteriorating demand and a planning debacle as it abandons one of UK’s largest blue hydrogen projects
EWE breaks ground on major green hydrogen project
1 December 2025
Project at Emden in northwest Germany due online in 2027, but wider ramp-up of clean hydrogen sector in Germany will require overhaul of government policy, company warns
Letter on hydrogen: The Mauritania model
25 November 2025
The northwest African country’s vision of integrating green power, molecules and steel is alive and kicking, and serves as a reminder of hydrogen’s transformative potential

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