Weatherwatch: how to maximise the power from mighty blades

Engineers are working on turbine blades that automatically adjust to high wind pressure and will stand up to strong winds and turbulent gusts

Wind turbine blades are getting ever larger and producing more power, but fluctuations in wind speed mean they are not always efficient. Blades can now be 85m long (and will be longer in the future) and they swing through an area the size of four football pitches. The wind speed will vary at the top and bottom of each rotation. The blades also have to be robust to withstand the pressure of high winds. Even so, in the worst weather operators sometimes need to angle the blades away from the wind and turn the turbines off to avoid damage. Then they lose production altogether.

Related: Mersey feat: world's biggest wind turbines go online near Liverpool

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View full post on Wind power | The Guardian

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