Wind energy is generated by transforming the movement of air currents into electricity.
Windmills or wind turbines are capable of converting the force of the wind into this renewable resource thanks to the technology of their tower, nacelle and large rotor blades.
The rotor blades are attached to the turbine via the hub, which turns at the same speed as they do.
The energy then passes through the gearbox, which increases the speed and transfers it to the high speed shaft, the component that transmits that power to the electrical generator, which is responsible for transforming the kinetic energy it receives into electricity.
Next, the direct current is converted into alternating current and, from there, it passes along a cable to the transformer and the substation, from where it exits as high-voltage energy ready to be transported by the power transmission line to the distribution network or grid.
Wind farms are usually sited in low population areas, thus boosting rural development and local industry. They produce renewable energy that is 100% emission free, safe and inexhaustible, thus slowing the consumption of fossil fuels and reducing polluting emissions.
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Video made by Pix Videos for Iberdrola.
