I don't know much on the subject of wind generators, but for those who want to play with it in an inexpensive manner, you might take a look at the Chispito plans.
Undoubtedly not the most efficient wind generator, but cutting up a chunk of PVC pipe to make blades, and scavenging a tread mill motor for the generator, could certainly be cheap enough for the hobbyist.
I've also seen a lot of hobbyist projects on the Instructables web site, but I highly question most of them. For instance, there is one who claims you can use an old cordless drill motor for the generator. Don't know how sound the proposal is, but in his particular case it appears he has a rollerblade bearing isolating the blades from the motor. Sure spins nice in his video, but I can't figure out how it could be spinning the 'generator' with that bearing in the mix.
Last edited by Lynn; 03-06-2011 at 05:43 PM.
Sent from my Motorola SCR-300 using Tapalot.