Despite all the challenges that 2020 has brought, a staggering 50GW of green-hydrogen electrolysis projects have been announced this year, out of a current global total of 80GW, as more and more countries announce ambitious clean-hydrogen strategies to help them decarbonise transport, heating and heavy industry.

Many of these projects are gigawatt-scale, with the hope that their immense size will quickly bring down the cost of green hydrogen through economies of scale — in the same way that the prices of wind and solar power have fallen exponentially over the past decade.

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