U.S. Jobs Created for Wind Projects
Wind power is the conversion of the kinetic energy in wind into a more useful form of energy, such as using wind turbines to produce electricity, wind mills for mechanical power for pumping water or drainage, or sails to propel ships.
Large-scale wind farms are connected to the electric power transmission network. Smaller facilities are used to provide electricity to isolated locations. Utility companies buy back surplus electricity produced by small domestic turbines. Wind energy as a power source is attractive as an alternative to fossil fuels, because it is essentially a free source of fuel, plentiful, renewable, widely distributed, clean, and produces no greenhouse gas emissions during operation. However, the construction of wind farms has not been universally welcomed because of their visual impact and other effects on the environment.
Wind power is non-dispatchable, meaning that for economic operation, all of the available output must be taken when it is available. Other resources, such as hydro power or gas fired power plants, must be utilized to match supply with demand. The intermittence of wind seldom creates problems when using wind power to supply a low proportion of total demand, but costs and operational difficulties rise as the proportion of total demand increases.