Heavy investment on energy resources is one of the reasons for the rapid economic growth we have witnessed in China since 2000. Excessive energy consumption growth strengthens China's coal-dominated energy structure. Meanwhile, the supply of energy has been fully converted to net imports,...

The paper first outlines the challenges the global energy system is facing. It then summarises the present knowledge of energy efficient solutions in all energy using sectors from primary energy to useful energy and, more importantly, from useful energy to energy services (material efficiency...