According to an industry report by Navigant Research, the US has overtaken China as the world’s largest wind power market. The report also states that GE has grabbed 15.5 percent of the market share, replacing the Danish company Vestas as the top supplier for wind power. 2012 saw a 12.3% increase in wind installations across the Americas. Concerns about security of electricity supply and manmade climate change continue to be the main drivers for increased use of wind energy. However, despite the rapid increase in the market for wind power, growth is expected to slow for the next two years.