Our management

Three heads, over 50 years of experience in the solar industry, and one mission: to advance the international growth of photovoltaics.

Christoph Koeppen


As CEO and shareholder of ENERPARC, Christoph Koeppen, graduate engineer (Dipl.-Ing) and MBA, is responsible for strategic alignment, project implementation and supply chain. Christoph Koeppen has been active in the solar industry and in prominent solar companies since 2002. During this time, he was responsible for international management tasks and for global EPC businesses, before starting his own business.

Frank Müllejans


As CFO and shareholder of ENERPARC, Frank Müllejans, Diplom-Kaufmann, manages the finance sector and all corporate-related topics. He acquired his expertise in the solar industry at a large electrical engineering company, where Müllejans was appointed CFO in 2002. There he was primarily responsible for the successful market launch of the company's solar department before leaving to work as a freelancer.

Stefan Müller


Stefan Müller, Dipl.-Ing., is responsible as COO and shareholder of ENERPARC for sales activities, international business, marketing and business development. He began his career, which goes back over 20 years, in the solar industry in 1992 at a renowned solar company in Germany. During the last eight years before his departure to be an entrepreneur, Stefan Müller held international management positions and lived, among other countries, in India, Spain and Singapore.