60 Wind Generation Historically Small wind turbines used for Wind Generation Historically Small wind turbines used for agriculture use — pump water Provide electrical needs for isolated homes Extracts ~ 3 kW of power with wind vanes no larger than 1m long Modern Wind turbines with vanes larger than 50 m can extract megawatts of power from the wind Blades designed to function similar to
airplane wings utilizing lift created by the wind flowing over the surface to turn the blades — more
efficient Turbines mounted on tall towers or at sea can take advantage of higher winds.