Solar panels that grow spinach by pulling in water vapour from the air could offer a low-cost strategy to produce crops in the desert, a new study says. A new system, called WEC2P, consists of solar panels coated with hydrogel – a kind of squishy water loving polymer, researchers in report.The hydrogel-lined solar panels are mounted on top of a large metal box that turns water vapour from the air into liquid water for growing crops.
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