Abstract:China has a vast geographical area and abundant solar energy and wind energy resources, which are sufficient to meet the needs of China's social production and life. After decades of development, solar photovoltaic power generation and wind power generation technologies have matured, the scale of industries and applications has developed rapidly, and power generation has continued to grow. It has become an important clean power source in the world. The cost of solar and wind power generation is rapidly declining, driven by technological advances and the expansion of the market, and in the foreseeable future solar photovoltaic and wind power generation will be technically and economically equivalent to conventional energy sources, that will promote energy transformation.