There is no big shortage of guys in search of cheap, abundant, free energy. We are, after all, going to eventually run out of fossil fuels -- if we haven't already -- and we will require something to keep the global economy humming, lest it shut down. One of my favorites is a man in Florida who figured out a way to make common saltwater burn. Anything that can be made combustible is inherently potentially useful for energy, since at the very least heat can be used to create steam which can be used to turn a turbine, which can generate electricity. And what's more abundant on the surface of Earth then salt water?