Lonnie Johnson is a smart man. He’s invented several very cool energy devices, gathering energy from the sun, the air, etc. He recently invented a solid state device for extracting energy from heat, most specifically solar energy. If it works, it could get up to 60% efficiency, which is WAY better than we get now. It’s also a small enclosed device you could buy at Target and plug in at home, which appeals to the mass market like crazy.
He also invented the super soaker. Like I said, smart man.