Wind Power Capacity Worldwide reaches 539 Gigawatt – 52,6 Gigawatt added in 2017 (WK-intern) - The overall capacity of all wind turbines installed worldwide by the end of 2017 reached 539’291 Megawatt, according to preliminary statistics published by WWEA today 52’552 Megawatt were added in the year 2017, slightly more than in 2016 when 51’402 Megawatt went online. This is the third largest number ever installed within one year, after the record years 2015 and 2014. However, the annual growth rate of only 10,8 % is the lowest growth ever since the industrial deployment of wind turbines started end of the 20th