...Green hydrogen is the technology associated with least
emissions. However, it is still expensive -- as high as $7.50 per kilogram,
compared with $2.40 for blue hydrogen, according to the Global CCS Institute.
...For hydrogen from water electrolysis to reach a quarter of
the world’s energy needs, it would require more power than the total global
electricity generation in 2019.
the world’s energy needs, it would require more power than the total global
electricity generation in 2019.
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