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Just so, do wind turbines get turned off?

All turbines have an automatic cut-off when wind speeds or gusts exceed 65mph to prevent serious damage to the turbines themselves. Others are shut down when there is too much power capacity in the National Grid and there is not enough demand from consumers.

Subsequently, question is, how do they stop wind turbines? When the anemometer registers wind speeds higher than 55 mph (cut-out speed varies by turbine), it triggers the wind turbine to automatically shut off.

Also Know, what speed do wind turbines shut down?

55 mph

What happens to wind turbines when there is no wind?

Offshore wind could provide abundant electricity — but as with solar energy, this power supply can be intermittent and unpredictable. Later, when power is needed, water would be allowed to flow back into the sphere through a turbine attached to a generator, and the resulting electricity sent back to shore.