roughly 5 years of technical lifetime http://www.ewea.org/wind-energy-basics/faq/ 5 years of technical lifetime European Wind Energy Association http://www.ewea.org/wind-energy-basics/faq/ just a few years ago average wind turbine http://www.ewea.org/wind-energy-basics/faq/ 5 years of technical lifetime 6 million kilowatt-hours roughly 5 years of technical lifetime American Wind Energy Association http://www.ewea.org/wind-energy-basics/faq/ 2 months, excluding planning 5 years of technical lifetime average wind turbine twice as much http://www.ewea.org/wind-energy-basics/faq/ 5 years of technical lifetime http://www.ewea.org/wind-energy-basics/faq/ roughly 9-11 miles per hour can be built 6 million kilowatt-hours 5 years of technical lifetime roughly 5 years of technical lifetime roughly http://www.ewea.org/wind-energy-basics/faq/ according to the European Wind Energy Association (EWEA) http://www.ewea.org/wind-energy-basics/faq/ 2 months, excluding planning http://www.ewea.org/wind-energy-basics/faq/ Wind energy frequently asked questions (FAQ) according to the European Wind Energy Association (EWEA) seven percent of the EU’s energy demand