if you had a household unit that produced hydrogen for energy storage (from eg. solar from your roof) in principle you could also concentrate oxygen, maybe for medical use, or maybe even just to oxygenate a room. would that be desirable enough to come in handy next resp pandemic?
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Replying to @DanielleFong
Nah, too many explosions in the neighborhood. But perhaps you could hydrogenate carbon dioxide faster than algae, or reduce sand to silicon?
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Replying to @Plinz
i’m hoping hydrogen storage and explosions really can be solved as a matter of practicality...
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Replying to @DanielleFong @Plinz
indeed the oxygen cylinders might be more of a concern in many cases
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Replying to @DanielleFong
Why not do straight desertec? No fancy resources needed, predictable output, storage of heat on site, and we have increasing supply of deserts
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Replying to @Plinz
all the companies developing that stuff got slaughtered by declining solar pv economics, but storage wasn’t yet valued by the market sufficiently. they have to operate at a scale like hundreds of millions of USD which exposed them to like 4-5 consecutive funding crashes in sector
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Replying to @DanielleFong @Plinz
newcos are trying to operate at much smaller scale but usually have to focus on pv tracking as a more reasonable startup scale.
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but still you only get a 20% improvement over single access tracking so you have to be super clever with mech e and cost engineering to make it in a competitive decision process. but from there you can scale, and yes then you can operate a thermal plant.
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