Research on investment efficiency evaluation model of power grid project based on electricity tariff sharing and power supply preservation

In the context of power supply guarantee, there is an urgent need to establish a set of accurate and reliable comprehensive evaluation system of investment benefits of power grid projects, so as to fully tap the power supply guarantee capacity of power grid projects and reduce the risk of power grid investment. This paper takes electricity quantity, electricity price apportionment and power supply guarantee as the basis, constructs the investment benefit evaluation index system and model, realizes the comprehensive evaluation of the investment benefit of the grid project, and the analysis of examples shows that the model can realize the maximization of power supply guarantee and investment benefit under the constraints of considering the investment capacity and other factors.