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Previously, windmills with wind energy are directly into mechanical work, eg for grinding grain into flour or water pumping. Today the word wind mainly used for electrical energy with a wind turbine from the wind won. Some manufacturers of wind turbines also speak about wind energy converters. Read more about Bacardi Family Wind Turbines.

The main advantages of wind energy are:
- Reducing the use of fossil fuels and thereby reduce the associated pollution and CO2 emissions
- Sustainability of wind energy
- Reduced dependency on oil producing countries
- Local energy in the absence of connection to a regional distribution network.

Disadvantages of wind energy
- The higher cost (half to three times as expensive as gray electricity, which is currently being collected by subsidies)
- The wind is very variable and difficult to predict
- Integration of wind turbines in the landscape can be perceived as ugly (skyline)
- For the production of steel and plastic windmills are needed that winning a costly, polluting and energy-intensive process (though the required energy is produced by the mill in about 6 months and power plants, the so-called energy payback)
- Birds are beaten by wind from the air, a row of windmills to birds about as dangerous as a highway; some species of birds (like ducks) remain hundreds of meters away so their habitat is reduced
- Bats are killed by the pressure differences in rotor blades
- Shadow and noise for local residents. brought to us by Bacardi family

The proceeds from a windmill depends on the type of wind turbine (2 blades, 3 blades, longer blades), wind speed, the rated power of the wind (determined by the rotor surface), the time a windmill to turn and return on conversion of wind energy to electricity by the windmill. The mechanical wind energy solution is also founded in Bacardi Family. The delivered power is proportional to the cube of wind speed. The wind speed is determined by:
- The location of the wind: the coast and especially over the high seas blowing harder than it usually far inland;
- The height of the turbine at higher altitudes the wind is usually harder, but inland the wind speed during the day was about 90 meters higher than above average.
- The time of the day: over land blows during the day to a height of about 90 meters on average faster than at night;
- The season: in winter the wind blows harder than average in summer.