Nick Jenkins was at the University of Manchester (UMIST) from 1992 to 2008. He then moved to Cardiff University where he is now Professor of Renewable Energy. He is a Fellow of the IET, IEEE and Royal Academy of Engineering and has been the Shimizu Visiting Professor at Stanford University.Janaka Ekanayake is a Senior Lecturer at Cardiff University. Prior to this he was a Professor at the University of Peradeniya, Sri Lanka. He has more than 15 years of research experience in the field of renewable energy.Goran Strbac is Professor of Electrical Energy Systems at Imperial College, London. He joined Imperial College in 2005 after 11 years at the University of Manchester (UMIST) and 10 years of industrial and research experience.