9 October 2017
Light-filtering paint cools your home when exposed to hot sun
By Sandrine Ceurstemont
The sun itself could soon become a low-cost air conditioner. A high-tech paint that actually cools when exposed to sunlight can provide a better way to chill buildings – and perhaps even solve the long-standing problem of cooling things in space.
In hot weather, electricity consumption soars as people turn on the air conditioning, pushing the grid to its limits and raising energy bills. Now Yaron Shenhav and his colleagues from SolCold, a firm based in Herzliya, Israel, have come up with an alternative that doesn’t require electricity. “It’s like putting a layer of ice on your rooftop which is thicker when there is more sun,” he says.
https://www.newscientist.com/article/2149681-light-filtering-paint-cools-your-home-when-exposed-to-hot-sun/
