1. Workgroup for Infrastructure Policy (WIP), TU Berlin, Straße des 17. Juni, 10623 Berlin, Germany
2. Energy, Transportation, Environment Department, German Institute for Economic Research (DIW Berlin), Mohrenstraße 58, 10117 Berlin, Germany
3. Institute for Future Energy Consumer Needs and Behavior (FCN), School of Business and Economics/E.ON Energy Research Center, RWTH Aachen University, Mathieustaße 10, 52074 Aachen, Germany
4. Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology (NTNU), Sentralbygg 1, 7491 Trondheim, Norway