Quaschning studied electrical engineering at Karlsruhe Institute of Technology, then wrote his PhD on photovoltaics at the Technische Universität Berlin. After obtaining his habilitation on low-carbon power system scenarios for Germany, he worked for the German Aerospace Center in Almeria, Spain and lead research into concentrated solar power. In 2004, Quaschning was appointed professor of renewable energy systems at the Hochschule für Technik und Wirtschaft Berlin.
