
There are a few wind generator parts as well as other parts that have to be collected before a windmill can be properly constructed. The most important pieces are the rotors or blades and the generator which should be closed tied with the rotors. Every part should be made to withstand high winds, hail, ice, snow, rain and anything else mother nature can throw at it.
Wind generator parts can be found for low wattage wind turbines and high wattage ones as well. Many people can assemble small turbines on their own free time but anything over 1000 watts should be left to trained professional, or someone who has built a few under 1000 already. The height of the tower is also incredibly important, the higher the better.
Wind generator parts for small homemade windmills can often be found at a hardware store. Hard to find parts such as the rotors can be built and many mechanic shops can re-machine a brake rotor into a windmill rotor for much cheaper than buying one new. Larger system often have specially made parts that have to be order and installed by a trained professional.