Dec 222011
 

wind-turbineThe higher the prices of fuel go, the more imperative the hunt for alternative energy becomes. Wind energy is one such source, and the public eye has settled on the efficiency of wind farms. Utilizing wind as a source of energy means having an inexhaustible power that is incredibly clean. Solar energy is the true source of wind power, because wind is caused by variations in ground temperature and the ground is heated by the sun. Harnessing the wind hence produces electrical energy.
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Numerous nations are nowadays employing wind farms as a means to completely use what power can be produced by the wind. Similar to the propellers on an airplane, the blades of wind turbines, put up in large numbers in one spot, are used to capture the power of the wind. Wind farms, because of the large number of turbines working in concert, have the capability to make energy in large quantities. Knowledge of the principles involved in wind farms will illustrate their possible effectiveness. The way wind turbines function is, the propeller turns a shaft as the gusts of wind turn the propeller blades. The turning of the shaft cranks up a generator from which action electric power then results. It makes use of the same principles as hydropower generation, except that wind power rather than flowing water is used.

One turbine by itself will not make energy for more than a home or farm, so it takes more than one to make energy for a huge area. When there is a big grouping of wind turbines, such as a wind farm, working together, much electrical energy can be created. The energy that is created can be collected in cells, like batteries, or in an already existing electricity grid, making it possible to provide the power needs of whole communities. Today wind turbines are so state-of-the-art that they can use wind coming from any direction, even when it is from inconsistent, variable angles.wind_power

Increases in efficiency can be gained by building the turbines taller, or by utilizing larger blades. Estimating the efficiency of wind turbines is made difficult by the complexity of factors involved. There is no constant, when it involves wind farms, because they vary so much in terrain, size of turbines, and the amount of wind. Generally speaking, the amount one turbine will convert the energy in wind to electric power is roughly 20 percent. When the wind is blowing between 5 and 20 miles an hour, that is when the production is the most cost-efficient.

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Wind power with an efficiency rating of 20% is higher than solar by five to seven percent, but solar is more constant than wind. Wind technology is progressing, and in comparison with other renewable energy sources, it is favorable. It is becoming an important alternative source of energy, but it might take a while for the whole world to jump on board. Among the leading countries in the adoption  of wind power  is Germany.
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