Onshore wind farms

Several wind turbines connected together form wind farms, which are veritable power plants. A wind farm consists of a group of wind turbines located in the same place, interconnected by a medium voltage connection network, which collects the energy produced by each turbine and conveys it to a collecting station where a transformer converts the medium voltage current into high voltage current and feeds it into the transmission and distribution system. A large wind farm can consist of dozens of wind generators, up to more than one hundred individual turbines, and covers an area of several km2: since, however, the area occupied by individual wind generators is very small, all areas between one turbine and the other can be destined for other uses, such as, for example, agriculture or livestock rearing. In wind farms, the distance between the wind turbines is not random, but is calculated to avoid mutual interference that could cause a decrease in energy production. As a rule, the wind turbines are located at a distance of at least five to ten times the diameter of the blades. In the case of an average wind turbine, with blades approx. 20 metres long, this means installing one every 200 metres.
With 188.4 GW, China is ranked first in the world in terms of installed capacity,  followed by the USA (89 GW), Germany (56.1 GW), India (32.8 GW) and Spain (23.3 GW). Italy is in 10th place in the ranking with 9.5 GW installed.

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From the Multimedia section

  • energy

    Global installed wind capacity, top 10 countries, 2017

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    Wind power production in Italy

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    Installed wind power in Europe in 2017

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  • energy

    Beaufort wind scale

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    Vertical axis generator

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    Blender

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  • energy

    In the Flanders

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    Windmill

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    energy

    Share of renewable electricity sources in total electricity sector consumption (2018)

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  • energy

    Global installed wind capacity, top 10 countries, 2017

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    energy

    Wind power production in Italy

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  • energy

    Installed wind power in Europe in 2017

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    energy

    Beaufort wind scale

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  • energy

    Vertical axis generator

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    energy

    Blender

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  • energy

    Global installed wind capacity, top 10 countries, 2017

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  • energy

    Wind power production in Italy

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  • energy

    Installed wind power in Europe in 2017

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