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Wind turbines at a wind farm

Wind turbines at a wind farm

T146/0385

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Credit

FRANCOISE SAUZE / SCIENCE PHOTO LIBRARY FRANCOISE SAUZE / SCIENCE PHOTO LIBRARY

Caption

Wind farm. Wind turbines at a wind farm, photographed through a red filter. Each turbine has three blades which rotate around a horizontal axis, turning a shaft which drives an electric generator. Wind turbines are tall and are placed on hills or by the sea so that they receive as much wind as possible. This is because the power which they generate increases with longer blades and higher wind speeds. Most machines are designed to operate in windspeeds between 21 and 60 kilometres per hour. The angle of the blades can be altered to improve efficiency or prevent overspeeding. Photographed at Glynfech Farm in Wales, Great Britain.

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Model release not required. Property release not required.

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