Definition: Wind turbine
- A wind turbine is a device that converts the wind's kinetic energy into electrical power. The term appears to have been adopted from hydroelectric technology (rotary propeller). The technical description of a wind turbine is aerofoil-powered generator.As a result of over a millennium of windmill development and modern engineering, today's wind turbines are manufactured in a wide range of vertical and horizontal axis types. The smallest turbines are used for applications such as battery charging for auxiliary power for boats or caravans or to power traffic warning signs. Slightly larger turbines can be used for making contributions to a domestic power supply while selling unused power back to the utility supplier via the electrical grid. Arrays of large turbines, known as wind farms, are becoming an increasingly important source of renewable energy and are used by many countries as part of a strategy to reduce their reliance on fossil fuels.
- A wind turbine is a rotary engine that extracts energy from the flow of wind. The simplest turbines have one moving part, a rotor assembly, which is a shaft with blades attached. Wind energy acts on the blades, or the blades react to wind, so that they rotate and impart energy to the rotor. Early wind turbine examples are windmills.
- Also Known As
- Wind machine, Windmill
For more information, see our [[Wind_turbinefuel cell, |detailed page on wind turbines]].