Germany, the world's fourth largest economy, is leading the way in a global transition to renewable energy. Through its own transformation, dubbed Energiewende, Germany was able to produce 38.5 percent of its power from wind, solar and other renewable sources during 2017. That figure is well ahead of the progress made by any other country among the world's rich and developing nations, and Germany showed that it could be done while maintaining strong economic growth over the past 15 years. And though this green revolution has helped make renewable energy into a major global business, it hasn't come without mistakes. But even those missteps can serve as signposts for the countries that want to follow the trail blazed by Germany....