There is a way to generate natural, clean energy that was discovered by Nikola Tesla at the turn of the century. and it is still just as impressive today as it was back then. Tesla discovered that you could actually use the sun.s energy to produce electricity. instead of using the sun.s rays (as you do with solar panels). The sun is constantly radiating energy . even when your skies are dark, the sun is still shining onto earth somewhere. and it is constantly radiating this energy onto earth. And Earth just constantly absorbs this energy. the problem is that most of the energy gets rebounded back into space.