How a wind farm works

Find out how the strength of the wind becomes energy that powers your activities. From nature to households.
A wind farm turns the wind's kinetic energy into mechanical energy, which in turn is used to produce electricity. The process is as fascinating as it is efficient.
Plus, it is sustainable. Start your journey to discover how a wind farm works!


Calculate the efficiency of a wind farm
With wind blowing at 13 metres per second, it is possible to produce, let's say, 2,000 KWh, an amount of energy that would meet the requirements of as many as 6,452 households. But that is not it. At the same time, the production makes it possible to avoid the emission of 814 kg of CO2 into the atmosphere.

In other words, households are powered and the environment stays cleaner.
See for yourself how much energy is produced depending on the strength of the wind in the infographic below, and see how much CO2 is saved every time.
You will also find some interesting facts about how wind farms work. Did you know, for example, that beyond a certain threshold of wind speed, wind farms cannot produce energy? In fact, when the wind is too strong, the turbines are put in a safe state, with a minimal wind resistance to prevent structural damage.

Discover the structure of a wind farm
Electric generators, nacelles, substations. These are some of the terms that you will come across when discussing wind energy. When most people think about a wind farm, the first thing that comes to mind is the turbine, the technological component that turns the wind's kinetic energy into mechanical energy and then into electricity.

However, without a complex electrical transmission system it would not be possible to send the electricity generated by the wind turbines (made up of the blades and the tower) to our households. The architecture of a wind farm, with installed power that can reach tens of megawatts, includes a whole system of electrical connections, electro-mechanical equipment, protection, switching and measuring systems, that is absolutely essential to its activity.

Click on the words in the infographic to find out about the many components of a wind farm and why they are needed.

Wind speed

3.0 m/s

Avoided CO2 (kg) 4,884

Wind farm
Wind farm - Trasformer
Wind farm - Houses
Wind farm - Production
Wind farm - Blade
Wind farm - Clouds

Hourly production (kW)2.000,0

Homes served6.452

Cable duct

Links all turbines to the substation. Contains medium/high voltage electrical cables as well as the fibre optics cables needed for remote turbine control.

Substation

Contains all measurement and control instruments and the transformer which increases the voltage to 150 kV for connection to the national distribution network.

Blades

They are made of fibreglass on a wood and composite structure. An automatic system keeps them oriented towards the wind and optimises their inclination to best exploit kinetic energy.

Tower

It is anchored on a foundation of reinforced concrete (at times with piles).
A transformer is located inside it to increase the voltage to 30 kV alternating current.

Nacelle

Contains the speed multiplier, the electric generator (low voltage and direct current) and the blade position control systems. At times it also contains a low/medium voltage transformer.