Turbine build tutorial: http://opensourcelowtech.org/wind_turbine.html
The generator is rated at 1.5HP / ~1kW which the turbine should be doing in about a 60 km/h wind, at about 90 volts. The turbine has been survival tested up to 105 km/h.
This video is just an incidental update, mostly on the new chain drive prototype and pole mount configuration, I'll be doing a full documented update at some point soon.
The cost breakdown is about $25 for the turbine itself, $45 for the treadmill motor as generator, and $95 for the pole, steel rope and fixings etc.
Known Issues With The Video:
~ Yes the steel ropes start out mounted below the turbine then jump to above it, turns out they work a lot better up there.
~ Yes the pole wobbles a bit, in future I'll have probably just some polyprop rope to the pole mid point to lock that off and stabilize the whole thing.
~ Yes the chain is off when the turbine is up and spinning, I didn't have it tensioned well and it dropped but then also didn't have the time or assistance to take the pole down and re-establish it before I had to leave. It does work fairly well tho.
~ Yes for now you're going to have to take my word for that.
~ The video is largely out of focus but my phone camera either auto focuses constantly or not at all and the latter is slightly less annoying.
~ The turbine does pop a bit when it spins, but it's not loud and I'll try to resolve that.
~ Yes the back two ropes are crossed at the top, that's for reasons.
~ Yes I say ummm a lot, like I say this is only meant as an update and I'll do a nice full video with amazing production values very soon.
Like and subscribe etc if you want to be kept up to date on future builds and developments.
Facebook group for the project: https://www.facebook.com/groups/windturbinemakers/
#windturbine #renewableenergy #windpower #wind #diy #opensource #energy