The direct impact area encompasses the space physically occupied by turbines and associated infrastructure, such as substations and maintenance facilities. . An August 2009 study for the National Renewable Energy Laboratory examined land-use data for 172 projects, representing about 80% of the installed and targeted wind capacity in the U., and found an average area of 85 acres/MW. According to "Permitting setbacks for wind turbines and the blade. . The base of a commercial wind turbine, for instance, might occupy approximately 0. 1 feet) away from any nearby obstruction, and at a height such that the bottom of the rotor blades will be 9 meters (29. Factors like soil play a significant role in this process.
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