电力市场中发电商持留容量行为研究

The Study of Power Producer's Withholding Behaviors in Power Market

电力市场中市场力的存在不利于电力市场的健康发展,首先指出了发电商行使市场力的两种手段:物理持留和经济持留,并利用经济学利润最大化原理对物理持留进行定量分析,实例表明,物理持留将会使电价上升,发电商利润增大,且需求弹性愈小项有市场力愈大。分析为电力监管部门平抑市场力提供了理论依据。

The existence of market power does not favor the power market＇s healthy development. This article first points out the two market power methods exercised by electricity generation business： physical withholding and economic withholding, then conducts the quantitative analysis to physical withholding using the economic profit maximization principle. The evidences indicate that physical withholding can cause the electrovalence rise, and the power producer＇s business profit will increase, also the elasticity of demand will recover the minor term to have market power to be bigger. The analysis of this article provides a theory basis for the electric power supervising and managing department to hold down market power.