Prof. Dr. Hans‐Martin Henning is director of the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany and owner of a full professorship “Technical energy systems” in the department of mechanical engineering at the Karlsruhe Institute of Technology (KIT). Prof. Henning finished his PhD in physics in 1993 at Oldenburg University and started working with Fraunhofer ISE in Freiburg in 1994. Key areas of his research cover technical energy systems for buildings and energy system analysis. He plays a leading role in the development of computer models for the simulation and optimization of complex energy systems and their application to investigate the development of national / regional energy systems including all energy sources, energy conversion and storage technologies and energy end‐use sectors.