These things are meant to save us from a changing climate but, when the weather turns wild, they can barely save themselves. 50-60m long blades, weighing in at 20 tonnes each, are usually the first item to be shredded and thrown in all directions (the wind industry uses the neutral term “component liberation”).
Then, if serious breezes persist, the whole kit and caboodle hits the dirt; which means all three of those 20-tonne blades join the 90-tonne nacelle (which houses the gearbox and generator) in an exhilarating 100m freefall.
When the wind goes beyond gale force, you can forget about receiving any meaningful electricity. Indeed, wind speeds barely need to reach gale force and these things go into automatic shutdown, as appears on German turbine maker, Siemen’s website – which has this to say about the automatic shutdown of wind turbines when wind speeds hit 25m/s (90km/h):
Nature presents us with…
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