Discussion on the regulation experience of overseas power spot market power and its inspiration for China

The construction of market power regulation is one of the critical elements of the current market construction and supervision system construction in China. Firstly， this paper summarizes the detection methods， mitigation measures， and evaluation indicators of overseas electricity market power and compares and analyzes the advantages and disadvantages of structural processes and behavior-influence methods. Then， the problems and challenges faced by China are summarized from the perspective of power supply distribution， power supply mix， network frame power flow， and bidding strategy. The paper analyzes the problems and challenges faced by China’s market power control construction. Furthermore， it points out that China’s market power regulation on the power generation side should take power plants as the primary control object. A regulation system that combines events before and after with emphasis on the behavior-influence method is established. Finally， from the market design and construction perspective， measures to mitigate market power are proposed， and an evaluation index system for market power is given to provide a reference for the construction of market power regulation in China.