There was an article in Trail Life a couple of months ago about solar and wind power.
I do not remeber what month it was. But I am almost willing to bet that it was July. Look in their website for the info.
Also you would really be better off with solar collectors...they are a lot cheaper than any of the wind turbines I have seen advertised, but then again the people that sell the solar panel set ups think they are made of platnum, instead of silcate and plastic.