Energy can be extracted from wind in small quantities for specific tasks with cheap, low technology equipment (eg pumping water, charging batteries). Equally, large amounts of electricity can be generated by high-tech wind turbines (often grouped to form 'wind farms').
It is often readily available during periods when it is most needed and in places which can readily benefit.
Wind turbines have true potential for meeting a significant portion of the world's energy demands. However, to do this, many major wind turbine installations would have to be constructed both on land and offshore throughout the world.
