When several wind turbines are constructed over an area, a wind facility is formed. Because many of the wind facilities in Illinois are located in rural areas with land rented from farm owners, they are better known as wind farms.
Illinois was only generating 50 Megawatts (MW) of electricity when Mendota Hills opened. In 2015, more than 3,700 MW of electricity come from wind turbines. Illinois has enough wind potential to generate about 250,000 MW.
Below is a list of established wind farms nd larger individual wind turbines (sorted by completion date) that supply electricity to the general power grid: