Research on the reasonable investment scale measurement of power grid based on the reform of transmission and distribution price

With the gradual advance of transmission and distribution price reform, the operating mode and profit model of power grid enterprises will be completely changed. By strengthening the supervision of transmission and distribution costs of power grid enterprises, the government has mobilized the power grid to reduce operating costs and improve the quality of customer service. At the same time, it also puts forward higher requirements for the investment planning of power grid enterprises, under the supervision of the government, it is necessary to fulfill more social responsibilities and ensure the profitability of power grid enterprises. This paper firstly introduces the transmission and distribution price regulation and verification method, it also analyzes the influence of transmission and distribution price reform on power grid enterprises. Through the sale of electricity, transmission and distribution price constraints, which can determine the minimum new investment scale and the largest investment scale so as to determine a reasonable range of new investment. The reasonable new investment scale estimation model in this paper will play a guiding role in the investment planning for power grid.