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Author Topic: Windmill vs. solar panels  (Read 4552 times)
Iceni John
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« Reply #30 on: December 09, 2011, 08:00:57 AM »

Did the top turbine's blades not feather correctly?   I heard that wind gusts reached 165 MPH  -  at that speed I'm surprised more turbines didn't fail.   I wonder what provision smaller home-type turbines have to deal with high wind speeds.   Do they have a brake, or do their blades feather, or what?

John
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Jeremy
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« Reply #31 on: December 09, 2011, 08:56:07 AM »

Yes, it's got to be a blade feathering problem - in fact you can see in the photo that the whole turbine head is actually facing the opposite direction to it's two neighbours.

The vast majority, and by far the biggest, of the UK's turbines are actually offshore. Goodness knows what havoc they'll find when the wind farm service boats can put to sea again.

Jeremy
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« Reply #32 on: December 09, 2011, 08:39:36 PM »

  Not sure about all, but jacobs feather out of the wind after max rpm is reached, about 45 IIRC, becoming fully feathered up around 90 IIRC, at which point a brake is engaged to stop it.
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