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https://electrek.co/2023/10/02/mit-solar-power-drinking-water/ https://electrek.co/2023/10/02/mit-solar-power-drinking-wate... : > They assert that if the syst
by westurner 3y ago
https://electrek.co/2023/10/02/mit-solar-power-drinking-water/ https://electrek.co/2023/10/02/mit-solar-power-drinking-wate... :
> They assert that if the system is scaled up to the size of a small suitcase, it could produce about 4 to 6 liters (1 to 1.5 gallons) of drinking water per hour and last several years before requiring replacement parts. At that scale and performance, the system could produce drinking water at a rate and price that’s cheaper than tap water.
> A scaled-up device could passively produce enough drinking water to meet the daily requirements of a small family. It could also supply off-grid coastal communities near seawater.
- westurner 3y ago"140-year-old ocean heat tech could supply islands with limitless energy" if there's a 20° C thermal gradient; because the ocean is a big thermal battery that stores infrared from the sun especially at the surface of the water: https://news.ycombinator.com/item?id=38222695 https://news.ycombinator.com/item?id=38222695