Wind power or wind energy is the use of wind to provide mechanical power to wind turbines which in turn is connected to electric generators for generation of electrical power.
Wind farms consist of many individual wind turbines, which are connected to the electric power transmission network. Wind is an inexpensive source of electric power, competitive with, or in many places cheaper than, other traditional Energy Generation technologies. Onshore wind farms have a greater visual ans socio-economic impact on the landscape than other power stations, as they need to be spread over more land and need to be built in rural areas, which can lead to industrialization of these areas.
Wind power is an intermittent energy source, which cannot be dispatched on demand. Locally, it gives variable power, which is consistent from year to year but varies greatly over shorter time scales. Therefore, it must be used with other power sources to give a reliable power supply.