Europe is embracing polymer electrolyte membrane (PEM) electrolysis, prioritizing it over alkaline electrolysis, said Thomas Hillig, managing director at THEnergy. “While many of the older installations were alkaline electrolyzers, now there is a clear predominance of PEM technology,” he told pv magazine. THEnergy recently published an electrolysis capacity map for Europe. “My best guess would be that the map covers 80% of electrolyzers that are used for producing green hydrogen,” said Hillig. “Adding up the installations from the map results in approximately 135 MW. So, the total would be in the range of 170 MW.” He noted that a big wave of new electrolyzers emerged in 2023. “However, many projects are still under realization,” he said. “That also means that the map will look completely different in one year from now.”

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