Before China came to dominate the solar panel industry, Germany led the way. It was the world’s largest producer of solar panels, with several start-ups clustered in the former East Germany, until about a decade ago when China ramped up production and undercut just about everyone on price. Now as Germany and the rest of Europe try to reach ambitious goals to cut greenhouse gas emissions, the demand for solar panels has only increased. Some of the last remaining manufacturers in Germany’s solar industry are not ready to give up.…