Changes
/* Brief History of Wind Energy */
* [http://www.brighthub.com/environment/renewable-energy/articles/71440.aspx 1927] : Joe Jacobs and Marcellus Jacobs improved the wind turbine generator for use in farms.
* [http://www.brighthub.com/environment/renewable-energy/articles/71440.aspx 1931] : development of Darrieus wind turbine. It is a vertical axis turbine that rotates with wind from any direction.
* [[Media:windenergy.pdf|1941]] : Largest mega watt range wind turbine was connected to the local electrical distribution system on the mountain known as Grandpa's Knob in Castleton, Vermont, USA. * [[Media:windenergy.pdf| 1971]] : Denmark installed the first offshore wind farms* [[Media:windenergy.pdf| 1990s]]: More than 2200 MW capacity of wind turbines are installed in california.* [[Media:windenergy.pdf| 2003]] : the largest offshore wind farm North Hoyle was built in the United Kingdom.
* 2003-2010: Research is going is on wind turbines in blades structures, generators, operation and protection, efficiency of wind turbines.
Source:[[Media:windenergy.pdf| Wind Energy]]
The total installed wind power capacity from 2001 to 2010 is shown in fig. 1. All wind turbines installed by the end of year 2009 worldwide are generating 340 TWh per annum.
The country wise share of wind energy by the end of year 2009 is shown in fig. 2.
