Previous methods – which use, for example, salinity gradient and thermoelectrical conversions – reduced the efficiency of producing electricity, says Peng Wang from the King Abdullah University of Science and Technology.
To address this, he and colleagues developed a three-stage device that captures and recycles the heat generated by photovoltaic (PV) solar panels to produce clean water using multi-stage membrane distillation.
The vid below shows solar technology which goes even further - turns thin air into water
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