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I was under assumption that, to reach $1/kg, hydrogen should be byproduct of electrolysis of sea water with additional products such as chlorine, calcium carbon
by iamgopal 3y ago
I was under assumption that, to reach $1/kg, hydrogen should be byproduct of electrolysis of sea water with additional products such as chlorine, calcium carbonate ( precursor of cement ? ), other precious metals, etc combined to reduce price of the hydrogen.
- sudohackthenews 3y agoTo extract 1kg of hydrogen with electrolysis you need ~50 kWh with inefficiencies (39.4 with no losses)[0], while one kilo of hydrogen only has 33.6 kWh[1]-roughly 1.17kWh to produce 1 kWh worth of hydrogen (no losses). For diesel, it seems to be quite similar-roughly 1.18 kWh per 1 kWh, however in reality at current efficiencies for hydrogen it is more like 1.5 kWh/1kWh. It seems companies need more incentive to switch to hydrolysis based solutions to cancel out the much higher costs of hydrogen storage [0] https://www.weforum.org/agenda/2023/09/seawater-electrolysis-a-hydrogen-revolution-or-technological-dead-end-here-are-the-numbers/energy https://www.weforum.org/agenda/2023/09/seawater-electrolysis... [1] https://rmi.org/run-on-less-with-hydrogen-fuel-cells/ https://rmi.org/run-on-less-with-hydrogen-fuel-cells/