Papantonis Dimitris, Professor, born in Pireaus (Greece) in 1951, holds MS degree in Mechanical Engineering from the National Technical University of Athens (NTUA), 1974, the degree of Hydraulic Engineer and Docteur-Ingenieur degree from Ecole Nationale d\' Hydraulique de Toulouse (ENSEEIHT), 1977. Since 1981 he is a Faculty Member of the Mechanical Engineering Department of NTUA and actually Professor on Hydraulic Turbomachines and Director of the Laboratory of Hydraulic Turbomachines of NTUA. He has been performing and directing research in the area of numerical flow prediction on hydraulic turbomachines, test modelling, transient phenomena and optimal sizing of small hydroelectric power plants. He has been responsible of various JOULE, THERMIE, ALTENER, ENERGY projects, in several of them acting as co-ordinator. He has published more than 90 papers in Scientific and Technical Journals and Conference Proceedings.