After working for a two-year stint at Tesla, Philipp Schröder returned to sonnen in 2015 like the proverbial prodigal son. The sonnen CEO heads up their sales and marketing activity, pushing their innovative battery storage and community sharing concept. The sonnen battery system enables the home storage of electricity generated by sources such as wind or photovoltaic. This electricity can then be stored and used when it is needed. The surplus can also be shared with other sonnen users or sold on to other parties. Philipp Schröder has used the knowledge and experience he gained at Tesla to help cement sonnen as the market leader in Germany, and create a real rival to Tesla battery systems. Competition is good!