Is there really any water in the dry air of Arizona? Apparently there's more than you might think, because a professor has invented solar panels that wring drinking water out of that air. His business is called Zero Mass Water, and it makes Source Hydropanels.
photo: forbes.com
The most they will produce is five liters per day, so it's only for drinking water - not near enough for irrigation or general household use. A typical home setup would be two units, for a price of $4500 plus installation.
Pricey, if you have access to plenty of water already. But interesting, if you don't. For bottled-water-using-families, the system could pay for itself in five years.
Possible applications:
1) contamination of local water, as in Flint, Michigan
2) lack of clean water in many parts of the world
3) desire to be off-grid in terms of water supply
(from Forbes)
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