These solar panels create clean water in the desert

Good News Notes:

Most of the energy that hits a solar panel is wasted. Energy technology researcher Peng Wang told IE that less than 20 percent of the energy that hits a solar panel gets turned into electricity.

The rest is turned into heat, which can cause the panel to become even less efficient.

Researchers have spent decades figuring out how to squeeze more electricity out of solar panels, coming up with solutions like harvesting energy from more colors of light by replacing silicon with quantum dots. 

Wang’s team at King Abdullah University in Saudi Arabia takes a different approach. They found a way to use the waste heat.

Their system, described in a paper published this week in the academic journal Cell Reports Physical Science, uses the otherwise unusable energy to pull water from the desert air….”

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