Wind energy is a source of energy that depends on the wind. The sun heats the Earth unevenly, creating zones of different temperatures and atmospheric pressure all around the globe. From these pressure differences arise air movements, called wind. This energy makes it possible to manufacture electricity in wind turbines, also called wind turbines, thanks to the force of the wind.
A wind turbine is composed of 4 parts:
the nacelle that contains the generator generating electricity
power lines that evacuate and carry electrical energy (when connected to the grid)
Descending from the windmill of the Middle Ages, the first wind turbine was commissioned in France in Dunkerque in 1990.
At the end of 2012, France has about 4 500 wind turbines.
It is an energy that emits no greenhouse gases and its raw material, the wind, is available all over the world and totally free.
There are 2 types of wind farms, depending on their geographical location and the available area.
A wind farm, or wind farm, consists of 3 to 10 machines at least 200 m apart. Electricity generation, most of the time purchased by EDF from its producer, is channeled by cable to the grid. Given the size of wind turbines, a large area is required to install a significant wind farm.
It is a wind farm located at sea, about 10 km from the coast, at depths of up to 25 to 30 m. It is connected to the terrestrial network by an underwater cable.