The sun offers an amazing source of power, putting out 3.8 x 1026 watts. At its upper atmosphere, the Earth takes in about 174 petawatts of solar radiation, reflecting about 30% back out into space. Humans have been trying to harness this energy into a usable source of power since ancient times. Check out the interesting history of solar energy below in this infographic.

![The History of Solar Energy [INFOGRAPHIC] The History of Solar Energy [INFOGRAPHIC]](https://www.ucollectinfographics.info/wp-content/uploads/2014/11/The-History-of-Solar-Energy-INFOGRAPHIC.jpg)