The worldwide wind capacity reached 392,927MW by the end of June 2015, out of which 21,678MW were added in the first six months of 2015. This increase is substantially higher than in the first half of 2014 and 2013, when 17.6GW respectively 13.9GW were added. All wind turbines installed worldwide by mid-2015 can generate 4 % of the world’s electricity demand.
The global wind capacity grew by 5,8 % within six months (after 5,6 % in the same period in 2014 and 4,9 % in 2013) and by 16,8 % on an annual basis (mid-2015 compared with mid-2014). In comparison, the annual growth rate in 2014 was lower (16,5 %). Reasons for the relatively positive development of the worldwide wind markets are certainly the economic advantages of wind power, after all its increasing competitiveness, uncertainties regarding the international oil and gas supply, and the pressing need to go for emission free technologies in order to mitigate climate change and air pollution. The world market for wind power is booming like never before, and the World Wind Energy Association (WWEA) expects new record installations for the total year 2015. The main markets are still China, with an astonishing growth of more than 10GW within six months, USA, Germany and India. Brazil showed the highest growth rate of all major markets, the country has increased its wind power capacity by 14 % since the beginning of this year. However, several of the European markets are now very flat, and also the largest European market Germany expects a major slowdown in the coming one to two years, after the expected regulatory changes are in force.