This paper first analyzes the influencing factors of the economy of new energy power generation under the situation of grid parity, then studies the economic analysis method based on the internal rate of return, and establishes the calculation model of the economic analysis of new energy power generation. Finally, taking the economic calculation of wind power field and photovoltaic power station in 2020 as an example. This paper studies the IRR of new energy power generation projects in different regions under parity conditions. On this basis, the paper analyzes the key issues of new energy development scale, development layout, operation consumption, market competition and so on under the situation of grid parity, and studies and judges the development trend of new energy in China in the future.
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