Dr. Kenji Yamaji is an engineer (nuclear, electrical power) by training. Currently, he is a Professor at the Department of Advanced Energy, School of Frontier Sciences, and Department of Electrical Engineering, School of Engineering at the University of Tokyo. Simultaneously, Dr. Yamaji is Vice-Chair of the Council of the International Institute for Applied Systems Analysis (IIASA), and Chairman of the Green Power Certification Council of Japan. During the earlier part of his career, Dr. Yamaji has been extensively involved in the research and analysis of energy systems, mainly at the Electric Power Research Institute (EPRI) in the United States and at the Central Research Institute of the Electric Power Industry (CRIEPI) of Japan. During the mid-nineties, he served as Director of the Technical Program Committee of the World Energy Council (WEC) Tokyo meeting.