Wiredup;
Well I don't have an annemometer so everything is by what wind maps say was happening,
I can get 6 volt "trickle" charge at around 9 mph winds. Thats around 250 milliamps or so [.25 Amps].
In gusts reportedly to 28 MPH I was seeing bursts up into the 3 to 5 amp range into fairly charged up [12.5 volts] 400 AH of batteries @ 12 volts. It seems to be able to sustain a steady amp+ in around 15 MPH.
It is no powerhouse but it seems to do OK all things considered, price, effort, location, etc.
This particular mill is mostly "proof of concept" type stuff and I have been more concerned with mechanical function than logging charge rates.
Yesterday my improvised balancing scheme of duct taped lead bullets to the pulley shucked a weight and went violently out of balance in the 45 mph gusts we had. I shut her down, locked the prop and this morning brought it into the shop. No damage but it sounded like a jackhammer when it was unbalanced. I will be tweaking it for some other issues like pivot point balance and rebalancing the blades in a more permanent fashion today.
Output Amps VS RPM data on these motors is in one of my other diary entries if interested.
Cheers.
TomW