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I haven't been following this forum lately, too busy in the "real" world. Our Jacobs made it through the 60 to 70+mph winds fine, put out lots of power until I shut it down. I often shut it off in really strong (over 40mph or so) winds, not because the machine can't take the wind, but because blowing branches or trash or hail can damage the blades in those kinds of winds. And I usually get the batteries fully charged in a few hours in those kinds of winds, and I don't feel too bad about missing the power by shutting it down for a few hours. The PV panels on 2 different mountings had no problems, but our old pole shed had 2 sheets of metal roofing bent up a bit on a corner of the building. A big pine tree lost some major branches, too, but it sits by itself at one corner of the property.
A properly designed and installed wind turbine should work well in wind speeds up to 60 to 80mph, depending on what they were designed for, and to survive winds of 100+mph.
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