>JD> One thing to remember with wind power is that the output of a
 >JD> wind generator rises as the CUBE of the wind speed. There is a
 >JD> huge difference in the potential energy of 10 and 12 MPH
 >JD> winds.
 > 
 > Yes, and I don't know quite how to do the calculations and analysis.
 > I don't think _average_ wind speed is an adequate measurement, since
Ian,
 There are books and charts that explain lots of this stuff, but I think you 
*are* interested in average wind speed. The storm winds might well be 
unusable because of damage potential, besides being too infrequent to rely 
upon.
Everything points to about 12mph as being a practical minimum average wind 
speed for a generator site.
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