Denizar Cruz Martins was born in São Paulo, Brazil, in 1955. He holds a Bachelor's Degree in Electrical Engineering (1978), a degree in Electrical Engineering (1978) and a Master's degree in Electrical Engineering (1981), all at the Federal University of Santa Catarina (UFSC) and PhD Degree in Electrical Engineering from the National Polytechnic Institute of Toulouse, Toulouse, France (1986). He has published over 330 (three hundred thirty) scientific papers. He has developed several technological projects in partnership with Brazilian Companies, resulting in the realization of some patents of invention. He is the co-author of five national books in the area of Power Electronics and three chapters of international books in the area of Electronic Processing of the Photovoltaic Solar Energy. He is a Founding Partner of SOBRAEP (Brazilian Power Electronics Society), having been its President for two years. He was Coordinator of the Post-Graduation Program in Electrical Engineering at UFSC. He was Head of the Electrical and Electronic Engineering Department at UFSC for two consecutive terms, and He is currently Supervisor of INEP (Power Electronics Institute). He is a full professor in the Electrical and Electronic Engineering Department at the Federal University of Santa Catarina, where He teaches undergraduate and postgraduate courses. He is accredited by the Post-Graduate Program in Electrical Engineering of UFSC for guiding students in master and in doctoral thesis. He is representative of the Power Electronics area in the Post-Graduation Program in Electrical Engineering at UFSC. He has experience in Electrical Engineering, with emphasis on Power Electronics, working mainly on the following topics: DC-DC and DC-AC static converters, power factor correction, power quality, electronic energy processing, distributed generation systems, DC and AC microgrids, simulation of static converters and electric drive. Title of Talk: Renewable Energies and Sustainable Development Applied to the Power Electric System in Brazil: Perspectives and Operation Management.