Hydrogen is being hailed as, if not a silver bullet, then at least a crucial component to decarbonising the world’s energy sources. And no wonder — when burned, hydrogen produces zero greenhouse gas emissions. However, the transition to a renewable hydrogen economy must first overcome a non-insignificant list of challenges. So-called green hydrogen, produced through electrolysis of water using renewable energy, currently accounts for only about 1% of global production. It is also about three times as expensive as its grey counterpart, produced from fossil fuel sources. One of the major pieces of the puzzle to scaling green hydrogen is…
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