The “Twelfth Five Year Plan” proposed the overall idea of energy development，that is “transition from current energy system to the sustainable development of the modern system”. 2015 is the last year of “Twelfth Five Year Plan”，whether can we achieve the task requirements is worthy of attention. Economic development relies on energy，while the consumption of fossil energy may lead to environmental pollution，so developing new energy becomes the trend internationally. As a clean and sustainable green energy，Water resources is very rich in China，thus it is China’s best choice which is in line with the national conditions.