Solar panels, or photovoltaic panels (PVs) are a great clean energy solution. But while these PVs enjoy fun in the sun, extreme heat impacts their efficiency, resilience and ultimately their longevity.

The world’s scorching deserts are generally thought of as unforgiving environments, but the sizable, sun-exposed landscapes have proven suitable locations for vast solar parks.

Above 25 degrees Celsius, solar panel efficiency begins to slow. This is why researchers are on the hunt for ways to ensure climates with extreme temperatures, like the deserts of the Middle East, can capitalize on the numerous sunny days as efficiently as possible.

Researchers at the King Abdullah University of Science and Technology in Saudi Arabia have developed an all-natural hydrogel that might be the answer.

The gel, made up of everyday polymers and salts, behaves similar to a sponge. It absorbs water from the air at night and slowly releases the water as vapor during the day, cooling the panels more than 14 degrees Celsius.

The result is more energy conversion, panels that may last up to twice as long and lower price tags on maintenance and cooling systems.

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