VIth International Congress on Renewable Energy and Environment (CERE'2012) is an international multidisciplinary conference, mainly the production, application and use of renewable energy. It forms a forum for the dissemination of recent information for the dissemination of advanced research for the exhibition of recent developments in the field of renewable energy and the environment and sustainable development, and debate and implementation of guidelines and priorities for sustainable development and security of energy supply. The conference is of particular interest: the researchers, scientists, engineers and practitioners in fields related to energy and the environment starting from the policy direction, technical development, and management and marketing. The details of this conference are posted on the website: www.cere-tunisia.com