HOW WIND POWER WORKS
At its core, wind power is actually just another form of solar energy. Wind currents result from changes in air temperature and pressure that are triggered by the sun. These wind currents are then converted into electricity using a wind turbine.
The turbine is made up of four main parts – the base, tower, generator and rotor blades (also referred to as propellers). Most wind turbines have three rotor blades.
The wind spins the rotor blades, which creates the kinetic energy that drives the generator. The generator converts wind into electricity by rotating magnets around a stationary coil of wires known as the stator – as the magnets pass the stator, they produce alternating current (AC) electricity that can be exported to the power grid.
Wind turbines are most effective in areas with high average wind speeds. The winds need to be constant, or at least coincide with times of peak energy consumption during the day and early evening. Turbines in wind farms tend to be very tall (between 130 and 160 meters high, on average), because winds are stronger higher from the ground and longer rotor blades are able to harvest more energy.
Watch our video to see how this renewable energy source works.