China is endowed with inadequate resources of oil and natural gas,and depends its 50 % of energy demand upon import.Also the quantitative ratio of reservation vs.production has already declined below 50.Among the total energy consumption,coal accounts 70 % in China,and the amount of CO2 emission has been more than the US.Nowadays,energy transition is a worldwide trend,including China.Its major direction is developing clean energy,and taking renewable energy as a focus point.China has a potential of substitu...