Wind energy (or wind power) is a broad term that refers to the various ways to generate electricity from wind, the air flows that occur naturally in the atmosphere due to uneven heating of the Earth’s surface by the sun. The type, size, and location of each turbine depends on wind availability, directionality, and strength, as well as grid accessibility and potential environmental and socio-economic impacts. Although the most common turbine design is the three-bladed horizontal axis turbine, several different designs have been developed over time, including vertical axis and two-bladed turbines.
Wind energy technologies can be classified in the following categories:
The primary environmental concerns associated with wind energy technologies typically encompass animal collision, impacts from noise, avoidance and/or attraction, impacts from lighting, and changes in flow.