Wilfried van Sark is full professor 'Integration of Photovoltaics' at the Copernicus Institute of Sustainable Development. He is a experimental physicist by training (MSc/PhD), and has 40 year experience in the field of photovoltaics. He worked on various material systems such as crystalline and thin film silicon and III-V solar cells, both experimentally and theoretically. His current activities focus on employing spectrum conversion to increase solar cell conversion efficiency for next-generation photovoltaic energy converters such as luminescent solar concentrators as well as performance analysis of building-integrated and standard PV systems in the field. This in particular links to the integration of PV systems in smart grids in the built environment, in which Electrical Vehicles, demand response and self-consumption and self-sufficiency play a major role. He is the author of some 250 publications, cited more than 12,000 times, and various (text)books on Photovoltaics. He is associate editor of Solar Energy and Frontiers in Energy Research, and member of the editorial boards of Renewable Energy, Energies, and Materials. He is member of the International Solar Energy Society and senior member of the Institute of Electrical and Electronic Engineers (IEEE) and is member of scientific committees of various EU and IEEE PV conferences. He presently is national representative in the International Energy Agency (IEA) PVPS Task 13 (PV Performance, Operation and Reliability of Photovoltaic Systems) and Task 16 (Solar Resource for High Penetration and Large Scale Applications).