This project will probably save you a lot of money, and make your life easier. Watch how this guy built his own power generator with just a waterwheel, and some car parts like a battery, power inverted, and old alternator.

Amazing what you can do with just a couple of tools, and knowledge. Really blows your mind when you see where he lives and what he has created, props to this awesome guy, it’s from people like him that we learn new useful things.