This time the Second International Green Energy Conference (IGEC-2) will be held at the University of Ontario Institute of Technology (UOIT) in Oshawa, Ontario, Canada between 25-29 June 2006. IGEC-2 will now provide a forum for the exchange of latest technical information, for the dissemination of the high-quality research results, for the presentation of the new developments in the areas of energy, environment and sustainable development, and for the debate and shaping of future directions and priorities in green energy development and energy security. The conference will be of particular value and interest to researchers, scientists, engineers and practitioners who are working in the relevant field of energy and environment, from policy making, technical development to management and marketing.