As hydrogen production ramps up, we are leaping orders of magnitude from mega-scale to giga-scale projects. The largest hydrogen electrolysers operating today are in the 10 to 20 megawatt (MW) range.
Plans already exist for gigawatt (GW) systems. Scale up is also the order of the day for hydrogen production from natural gas.
As an example, the H21 North of England project proposes nine auto thermal reactors (ATRs) to convert North-Sea natural gas to hydrogen. Each ATR would be rated at 1.35 GW of hydrogen energy production and would require an air separation unit (ASU) capable of 2,900 tonnes per day (tpd) of oxygen.
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