Hydrogen leaks out of electrolysis installations at more than double the rate of blue or grey H2 plants: study

Leakage can be expected to nearly triple between 2025 to 2030, rising to 22 million tonnes per year by 2050, peer-reviewed paper warns

An electrolyser at a hydrogen refuelling station in the US.
An electrolyser at a hydrogen refuelling station in the US.Photo: iStock
Published 1 July 2025, 06:04Updated 1 July 2025, 06:04