Parts of a Wind Turbine
The principle behind wind turbines is very simple: the energy in the wind turns the blades around a rotor. The rotor is connected to the shaft, which spins a generator to create electricity.
Wind turbines are mounted on a tower to capture the energy from the wind. The higher the blades are, the more they can take advantage of faster and less turbulent wind. A simple wind turbine consists of three main parts, the blades, shaft and generator:
1) Blades: The blade acts as barriers to the wind. When the wind forces the blade to move, some of the wind energy is transferred to the rotor.
2) Shaft: When the rotor spins, the shaft also spins, and transfers the mechanical energy into rotational energy.
3) Generator: A generator uses the difference in electrical charge to produce a change in voltage. Voltage is actually electrical pressure, the force that moves an electrical current. The voltage drives the electrical current (alternating current power) through power lines for distribution.