[German Renewable Wind power is growing at the rate of 30% annually, with a worldwide installed capacity of 198 gigawatts (GW) in 2010, and is widely used in Europe, Asia, and the United States, Germany's renewable energy revolution - interview with Christine Wörlen, Renewable Energy and Germany: The Local Success Story, Transformer Stations for Renewable Energy | Made in Germany, Feed-In Tariffs - Germany's Renewable Energy Program]