HOMEMADE WINDMILLS AND WATER WHEELS
Wind and water are some of the most reliable sources of power there are. There is no fuel to worry about, and the best news is that you can make devices that harness their power from items you might have around the home or can readily obtain.
For both, you will need some way of converting the energy created by their movement into electric power. For that, you will need some sort of generator and a converter. The generator can be a re-tasked automobile generator or alternator that you can pick up at a junkyard. The converter, which turns DC to AC, can come off an old travel trailer. You’ll need to have this device, because household current is AC.
Capturing this power is fairly simple, and there are literally hundreds of ways to put it together. There are plans available, or you can design your own. Just do some research, and then use what works for you.