As a general rule, wind farm sites cannot be more than 10 miles from an existing high-voltage power line. Another economic concern is the cost of constructing a wind farm. What is the slope of the site. Steep sites will require extra construction expense. The environmental impact of a wind farm is also a concern.
Some people are concerned because of the large land area required by wind farms.
Large wind farms may require hundreds of acres. The remaining 95 percent of the land may be used for other purposes such as row crops or ranching. Current research indicates that this may be a local problem and seems to be associated with fog. A third environmental concern is noise from windmills. Early generation windmills were very noisy.