Energy sustainability provides the essential guarantee of sustainable development, which not only generates challenges to both academy and industry but creates also opportunities for innovations. The International Symposium on Sustainable Energy: Challenges and Opportunities aims to provide an international forum for presentation, discussion and review of the latest advances in innovative strategies, policies and technologies for maintaining sustainable energy production, supply and utilization. The symposium will be peculiarly contributed to an interactive discussion on the sustainable development of renewable energy resources and innovative clean utilization of fossil fuels, especially coal.