Solar power scientists are now using molten salt to store the sun’s energy. Here’s the science of how it works.

Wind energy may have lots of fans but solar energy, we love you watts and watts! In June 2019, China’s Dunhuang molten salt solar thermal power plant hit 100MW, its maximum power levels. The plant will provide 390 million kWh of clean power each year and reduce carbon dioxide emissions by more than 3500 tons. And it can run 24-hours a day, even when the sun does not shine. It does this by storing energy in a molten salt solution for later use. More and more solar power plants are turning to molten salt to solve solar energy’s number one problem – where to get energy at nighttime or when the sun is behind clouds. Solar energy could be stored in normal batteries but batteries…
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Meet Solar Impulse 2- the solar powered airplane that hopes to fly around the world

See the big, shiny covering on top of the wings of this airplane? Those are solar panels and yes, this is a solar powered plane. If the inventors got it right, this plane will be able to fly around the world using nothing more than solar energy it collects during its travels. The Solar Impulse 2, has a wingspan close to that of a huge 747 airplane yet, it weighs just about as much as a car (5,000 lbs.). It has a comfortable pilot seat which doubles as a toilet and folds down flat into a bed (so you can poop lying down?). And in case you’re wondering, yes, the plane also carries a parachute and life raft.  The inventors say they did not want…
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