Our scientific board Professionals behind our projects Principal Scientist Solar Energy Wim Sinke Linkedin Envelope Energy Technology University of Twente Gerrit Brem Linkedin Envelope Professor Energy Technology David Smeulders Linkedin Envelope Professor of Sustainable Supply Systems Gert Jan Kramer Linkedin Envelope Director of Science TNO Energy Division André Faaij Linkedin Envelope Principal Scientist Solar Energy DIFFER Richard van de Sanden Linkedin Envelope Energy System Analysis TU Delft Kornelis Blok Linkedin Envelope Professor Energy and Environmental Studies Klaus S. Hubacek Linkedin Envelope Professor Policy Sciences & System Innovations John Grin Linkedin Envelope