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by wolfretcrap 1988 days ago
It's the power consumption I guess.

I've membrane filtration at home, it consumes very little power than what you'd need to boil the water and condense it to water again.

I've tried it on my solar panels, getting even 5 liter of water on my 2x350w panel takes 3-4 hours while I get 5 liter water from RO membrane in 1 hour while using 5% of solar panel power.