Dr Oliver Lang from Sonnenrepublik GmbH speaking to Ricky Purnell at Energy Harvesting & Storage Europe, part of the IDTechEx Show! The Sonnenrepublik GmbH has been founded in Berlin in late 2012. Its goal is the development and worldwide marketing of a novel modular device platform which consists of high-efficiency autarkic solar components in the small power range. Company founders Dr. Oliver Lang and Andreas Guba have wide experience and a big network in the field of autarkic photovoltaics and retail business.