As a country consuming large amount of energy

China has many problems in energy consumption structure

like over high proportion of coal consumption

high industrial energy consumption

lagging technology and great regional difference in energy efficiency. From such aspects as energy consumption

per unit GDP energy consumption

energy consumption structure

unit production emission and unit energy consumption in major high energy industries

China's energy efficiency was investigated and compared with that of the main countries in the world. The technology

policy

energy consumption structure and marketization degree are considered as the major factors influencing the energy efficiency. Measures should be taken by considering these factors to enhance the energy efficiency

regulate the imbalance between supply and demand

and alleviate the pressure of emission reduction.