The impact of electricity marketization reform on misallocation in the coal power industry:evidence from the five provinces in the Southern Power Grid
Jin Lu
Liu Yiran
Wang Mingming
Chen Hao
Abstract：To achieve carbon peak and carbon neutrality,coal-fired power need to play a"ballast stone"role in ensuring electricity supply and system regulation.The power generation efficiency of the units has become a core issue.For a long time in the past,China's coal-fired power units followed the equal dispatch,and some high energy-consuming and high pollution units were inefficient utilized,leading to a certain degree of misallocation in the industry.With the development of electricity marketization reform,the coal-fired power industry is gradually shifting from equal dispatch to economic dispatch.To evaluate the policy effects of electricity marketization reform,this article takes the five provinces in the Southern Power Grid as an example and conducts quantitative research using an optimization model and individual-time fixed effects regression from the perspective of misallocation.The main conclusions of the article are as follows:(1)Implementing economic dispatch within the province can reduce power supply costs by 2.99%～6.41%,and power coal consumption by 3.13%～6.85%.(2)If we consider the economic dispatch mode within the grid,the economic dispatch savings will increase from 3.013 billion yuan(4.09%)in 2011 to 6.868 billion yuan(8.42%)in 2018.(3)The electricity marketization reform has reduced the misallocation degree in the five provinces by 9.9%～10.3%.The conclusion provides a scientific basis for deepening the relevant policies of electricity marketization reform.
Keywords：electricity marketization reformeconomic dispatchmisallocationcoal powerpower supply costcoal consumption
Publication Date：2024-02-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 131-140 )