Economics programs completed at the Universities of Mannheim (Diploma) and at the University of Florida in Gainesville (Master). PhD in Applied Economics from Virginia Polytechnic Institute and State University (Virginia Tech University) in Blacksburg.
Employed at Fraunhofer Institute for Systems and Innovation Research (Fraunhofer ISI) since 1998 in acquisition, research and project management, first in the Competence Center Energy Policy and Energy Systems as well as in the Competence Center Sustainability and Infrastructure Systems, since January 2012 in the Competence Center Energy Policy and Energy Markets. Leader of business unit Energy and Climate Policy until 2011.
Since 2004 Adjunct Professor at Virginia Tech. Since 2011 also Professor of Energy Economics at Grenoble Ecole de Management, France, where he is head of the Energy Management Research Team.
Member of editorial board of the journal “Energy Efficiency“.