Wind power: worldwide installed capacity
This is a
list of large wind farms, with a generating capacity of 100 megawatts (MW) or more, which are currently operating, under construction, or proposed. Wind power capacity has expanded quickly to 336 GW in June 2014, and wind energy production was about 4% of total worldwide electricity usage, and growing fast. 
Wind power is widely used in Europe, and more recently in the United States and Asia.  Wind power accounts for approximately 19% of electricity generation in  Denmark, 11% in Spain and Portugal, and 9% in the Republic of Ireland. 
Many of the largest onshore wind farms are in the USA. As of January 2014, the
Alta Wind Energy Center is the largest onshore wind farm in the world at 1,020 MW.
Many of the largest offshore wind farms are in Europe. As of January 2014, the
London Array is the largest offshore wind farm in the world at 630 MW.
↑ GWEC, Global Wind Report Annual Market Update
↑ The World Wind Energy Association (2014). 2014 Half-year Report. WWEA. pp. 1–8.
↑ Global wind energy markets continue to boom – 2006 another record year (PDF).
↑ Global Wind Energy Council (2009). Global Wind 2008 Report, p. 9, accessed on January 4, 2010.
↑ International Energy Agency (2009). IEA Wind Energy: Annual Report 2008 p. 9.
↑ California U.S. Wind Energy Projects - California, Alta Wind Energy Center, 2009
↑  Industry Statistics, 2Q 2011
↑ , Shepherd Flat, one of the world's biggest wind farms, up and running in Oregon, 2012
↑ E.ON Delivers 335-MW of Wind in Texas
↑ 10.0 10.1 10.2 10.3 Drilling Down: What Projects Made 2008 Such a Banner Year for Wind Power?
↑ 11.0 11.1 11.2 AWEA: U.S. Wind Energy Projects - Texas
↑ CEZ: Fantanele-Cogealac Wind Park
↑ AWEA: U.S. Wind Energy Projects - Indiana
↑ Babcock & Brown and BP Announce Full Commercial Operation of one of the Largest Wind Farms in the U.S.
↑ London Array Project home page
↑ "UK: Greater Gabbard Offshore Wind Farm Generates Power" . Retrieved . 2012-09-07
↑ Anholf Offshore wind farm in 4C Offshore Retrieved 2013-08-27
↑ German Federal Minister Inaugurates BARD Offshore 1 Retrieved 2013-08-26
↑ "UK: Walney Offshore Wind Farm Fully Operational". 2012-06-14 . http://www.offshorewind.biz/2012/06/14/uk-walney-offshore-wind-farm-fully-operational/ . Retrieved 2012-06-15.