This event is the Seventh International Symposium on Energy; it combines previous two symposia: ISECM - working on small scales (ECM4, ECM5); ISECM – towards a big picture (ECM3, ECM6) into one. The conference involves multiple disciplines in technology, science, management and policy-making related to energy challenges. The topics include both fossil fuels and many different forms of renewable energy. Also, it addresses issues related to energy policy and economy, energy efficiency, safety, and environment. The purpose is to gain a complete view of energy challenges and solutions among these different disciplines and from a global perspective.