How big are wind turbines?

Wind turbines range in size from tiny micro turbines to enormous utility scale power production facilities. Large turbines may have blades that are over 50 meters long -- meaning the rotor diameter would be over 100 meters long (more than the length of a football field)! The commercial-scale turbines are often placed on 100-meter towers, so the tip of the blades might reach as high as 160 meters (525 feet) in the air.

Smaller home- or farm-sized turbines usually have a rotor diameter of up to 15 meters (50 feet) and can be placed on 30- to nearly 50-meter towers.

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