I have been lurking for quite a while on here, grabbing loads of useful information so that I could build my own turbine.
Well I have built one and used a 36v 200w geared brushed front wheel bicycle motor for the generator. I ran into a few problems along the way with blade sizes, I made 6 15" waste pipe blades but found that the mill would hardly turn due to having to overcome the internal gearbox in the motor. I next made 3 3 blades and had a little more success with those, although still needing quite strong wind to turn the mill.
I have now added another 3 3 blades to give me a 6 blade 6 prop and things have improved alot.
I live in Cannock close to Cannock Chase Staffordshire, right in the town so do struggle with getting clean wind. I have got a good clean path wsw, sw and west, so can take advantage of some of the wind directions.
My setup consists of a total of 30w in solar panels, 3 40ah sla mobility scooter batteries wired in parallel to give me a 120ah 12v system, I have a 4amp charge controller for the solar and have that and the mill running through a Watts up meter.
The mill is producing power in the gusts and last Saturday i saw a peak of 12.7 amps from the mill.
I have been wondering if i need to build a charge controller for the turbine and have a dump load. Any advice any of you can give would be greatly appreciated.
Here is a flickr link to some pictures that i have taken. http://www.flickr.com/photos/29666566@N03/
I have also got a weather station online at http://weather2.andyn.net if anyone is interested in weather aswell.