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The history of wind energy dates back to more than five thousand years in Egypt where boats used to sail over long distances - however if we need to go by what has been found in written texts, then the history of wind energy probably dates back to the twelfth century in the Netherlands. The multi fan windmill was manufactured in the US during the second half of the nineteenth century. In the two decades, beginning from 1930, hundreds of wind generating turbines were manufactured in the US-these either had two or three thin blades which rotated at great velocity which were used to rotate electrical generators. These turbines was of use to provide electricity to the rural areas which were beyond the reach of conventional power supply and were used to charge storage batteries, operate radio receivers and to perform electrical functions like lighting an electric bulb which did not need a large amount of electricity . Windmills again became popular around the year 1980 onwards, mostly in the US and Europe and to a lesser extent in South and South East Asia. Within about ten years the installed capacity for generating wind power went through a substantial increase. |
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