Question
For a Lunar base, assuming a Lunar source of water, H2O to H and O makes sense, just as Perseverance's MOXIE experiment (Martian air CO2 to C and O) makes sense.
But I fail to see the utility for the Lunar Gateway. I suppose you can mine Lunar water and ship it to the Lunar Gateway for electrolysis but solar panels on the Moon can generate much more electricity so, to me, it would make sense to put your kit on the Moon and ship the finished product to the Gateway.
In any case, I wish the boffins well because 1) space and 2) I want a hydrogen car.