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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