Marta Lopes, PhD, is an assistant professor at the Polytechnic Institute of Coimbra -Agriculture College (ESAC), and a researcher at the Institute for Systems Engineering and Computers at Coimbra (INESC Coimbra), Portugal. Having experience in the implementation of energy efficiency projects in public institutions, her main research interest is the human role in sustainable energy systems, particularly by using integrated approaches. Carlos Henggeler Antunes, PhD, is a professor at the Department of Electrical and Computer Engineering, Director of the R&D Institute for Systems Engineering and Computers at Coimbra (INESC Coimbra), and member of the Coordination Committee of the Energy for Sustainability Initiative, University of Coimbra, Portugal. His main research areas are energy systems and policies, demand response, multi-objective optimization, and multi-criteria decision analysis. Kathryn B. Janda, PhD, is a principal research fellow in organisations and non-domestic buildings at the Energy Institute at University College London, United Kingdom. She studies the role of organisations as both adopters and providers of sustainable innovations, including energy standards for nondomestic buildings, the role of building professionals in driving ‘middle-out’ change, and implications of ownership and tenancy in the commercial real estate industry.