Wind energy is obtained by wind, ie using the kinetic energy generated by effect of air currents.
The wind comes from the Latin term aeolicus belonging or relating to Aeolus and Aeolus, god of the winds in Greek mythology and, therefore, belonging or related to the wind. Wind energy has been used since ancient times to move boats powered by sail or operate the mill machinery to move their blades. It is a type green energy.
currently used mainly to move turbines. These wind moves a propeller and through a mechanical system rotates the rotor of a generator, typically an alternator, which produces electricity. For installation uneconomic concentrations are usually grouped into so-called wind farms.
Although wind farms are relatively recent, starting to become popular in the decades of the 80 - 90, long the wind has been used in other applications, such as grinding grain or pumping water, just remember the famous windmills Wind already famous in the adventures of Don Quixote. ADVANTAGES
Although the amount of energy produced by this medium grows more and more in developed countries, wind energy has the following advantages:
• It is a type of renewable energy, ie, not spent or is slow little time to recreate.
• It is a clean energy that does not require combustion to produce carbon dioxide (CO2), and produces no atmospheric emissions or polluting waste.
• While not all sites can be used as the sole source of electrical energy, inclusion in an interlinked system allows, when wind conditions are suitable, save fuel in power stations and / or water in the reservoirs of hydroelectric plants.
• With integrated power systems interlinked, saves fossil fuel, or water stored in reservoirs.
• Can be placed in areas unsuitable for other purposes, such as in desert areas near the coast, arid slopes too steep to be cultivated.
• Can coexist with other land uses, such as grassland for cattle grazing or low growing crops like wheat, corn, potatoes, beets, etc..
• Since the current wind turbines are low speed, the problem of collisions with birds is shrinking.
• It creates jobs in areas that are built and assembly plants.
• Wind energy is a strong alternative to climate change because it produces no greenhouse gases.
• Installation is quick, 6 months to a year.
• Its use in combination with other types of energy, usually solar, biofeedback allows housing, ending the need to connect to grids, can achieve autonomy over the 82 hours without food from any of the 2 systems .
Source: wikipedia.org
Picture: wikipedia.org
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