Unlike the energy coming from the combustion of fossil fuels, wind energy is renewable, abundant, widely distributed, clean; it produces no greenhouse gas emissions during operation and it consumes no water. The effects it produces on the Environment are far less deleterious than those produced by non-renewable energy sources.

Onshore wind is a cheaper source of electricity than coal or gas-fired power plants; offshore wind is steadier and stronger than on land and offshore farms have less visual impact, but their construction and maintenance costs are considerably higher.

Wind is a variable energy source, that is characterized by quite stable average annual values but also by significant variations over shorter time scales. Therefore, in order to obtain a more stable electrical supply, it is exploited in conjunction with other energy sources.