André P.C. Faaij is Professor of Energy System Analysis and Director of Science unit “Energy transition”, TNO UNIT and he is Distinguished Professor at the University of Groningen (Faculty of Science & Engineering) and professor at the Utrecht University (Copernicus Institute). His key research interests include: Biobased Economy, renewable energy technologies, energy system and scenario analysis and modelling, sustainability assessments of energy systems, alternative transport fuels, decarbonisation of fossil fuels, capture and storage of CO2, hydrogen economy, waste treatment, material & energy efficiency, technological learning and innovation in energy systems, land use, agriculture, environmental system & impact analysis, socio-economic impact analysis, greenhouse gas balances & accounting, energy and research policies. Ongoing research covers energy system integration questions, modelling, transition processes towards low carbon energy systems and related innovation and policy questions. His research interests and priorities contribute to TNO’s objectives by advancing the capabilities and use of state of the art system analyses methods and tools to inform the energy transition across the board.