Research On Investment Efficiency Evaluation And Improvement Countermeasures Of H Power Grid Company Based On Super Efficiency DEA

Power grid investment is the core link of production,operation and management of power grid companies.In 2016,the national development and Reform Commission promulgated and revised the pricing method of transmission and distribution price of provincial power grid(fgjg[2020] No.101)in 2020,which implemented the reform of transmission and distribution price of provincial power grid nationwide.The document clearly changed the profit model of power grid companies into the model of "permitted cost reasonable income".Therefore,the operation management mode of China’s power grid companies has changed from relying on power growth to relying on effective asset growth and operation efficiency improvement.Power grid investment is more strictly supervised by government departments,and effective and reasonable investment has become the key guidance and basic principle of investment decision-making of power grid companies.However,because China’s power grid companies have the characteristics of natural monopoly,strong technology and high security requirements,it is difficult for China’s government regulatory agencies to supervise the provincial power grid companies,which leads to the phenomenon of blind expansion,ineffective and inefficient investment of the provincial power grid companies.Therefore,establishing a scientific and reasonable investment efficiency evaluation system is very important to improve the investment efficiency of provincial power grid companies.Taking the new round of transmission and distribution electricity price reform policy as the background,this thesis selects h power grid company as the case study object.Based on the in-depth analysis of its investment efficiency,this thesis uses super efficiency DEA model and Malmquist index model to evaluate the investment efficiency and heterogeneity of h power grid company from the horizontal and vertical,static and dynamic multi-dimensional perspectives.Finally,based on the evaluation results,Put forward suggestions and measures in three aspects:investment planning,evaluation methods and scientific and technological innovation.Through empirical research,the main conclusions are as follows:(1)the comprehensive investment efficiency of h power grid company is low,mainly because the technical efficiency restricts the improvement of comprehensive efficiency;(2)The decline of technological progress efficiency index is the main factor restricting the total factor production efficiency of h power grid company.The innovation of this thesis is to evaluate the investment efficiency of H Power Grid Company from dynamic and static perspectives by combining the advantages of super-efficiency DEA model and Malmquist index model.In addition,combined with redundancy improvement analysis,this thesis puts forward specific suggestions on the investment management of power grid companies,which to some extent provides reference for the investment efficiency optimization of power grid companies.