Gigawatt upon gigawatt of green hydrogen capacity is being planned across Europe, Asia, and Australia. According to proponents of the technology, green hydrogen – the kind produced through electrolysis powered by solar, wind, and other renewable energy sources – is the best way to decarbonize heavy polluter industries. There is much talk about the falling costs of solar and wind and how they will make green hydrogen viable very soon. What nobody seems to want to talk about is water. Electrolysis is the process of breaking down water into its constituent…

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