Saturday, April 28, 2012

Wind Turbines - How Long Have They Been Around?

One of the most popular ways of alternative energy are wind turbines. As each year passes by windmills are constantly growing within their popularity, mainly with the modern day green movement. Windmills are great in that they receive energy through a source that will never run out. This is why wind turbines are becoming more and more popular. When were wind turbines first introduced into the world? Are they are a new invention?

In reality windmills were first made between 500-900 A.D. by the Persians and were used as a water pumping system. The original windmill model was the vertical axis. This vertical axis was developed with vertical sails made of reeds grouped together to the central vertical shaft by horizontal struts. Western Europe had their first appearance of the horizontal axis in 1270 A.D. The design was changed because they saw the structural efficiency of drag-type for the horizontal axis wind turbines was greater than that of the vertical axis. The wind turbine was then changed to be able to be used in many ways such as pumping water, irrigation, grain grinding, and saw milling of timber. In 1888, the US was able to successfully develop a multi-blade windmill that created electricity.

From this point on the design was changed more and more to be efficient in producing the highest output of electricity. From the 1970s to 1990s countries would start developing wind farms in a way for alternative energy over fossil fuel, and even more during the Arab oil crisis in 1973. It was at this point when the United States government would begin to get involved and started to finance some of the wind energy programs as an alternative energy source. From this point on the designs of wind turbines have been perfected into producing the maximum kilowatts for the least amount of cost.

Energy production for wind turbines is starting to be cheaper than other ways. Wind energy is even said to be under pricing the capital costs of close to every other power plant type in other countries! This is good for home owners since they can now build their own wind turbine for a low price. This will give people the chance to lessen their electricity costs and stop depending on the electric company.

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