Market power evaluation of power retail market based on combination weighting method

As the construction of the medium and long-term electricity market gradually deepens, the problem of market power is gradually becoming apparent. There is an urgent need for key technologies to support the discrimination of local market forces, in order to provide guarantees for promoting fair competition, stable and effective sustained operation in the medium and long term electricity market. This article focuses on the identification and quantitative analysis of market power risks for electricity retail companies in the electricity retail market of Liaoning Province. This article analyzes the reasons for the generation of market power in electricity retail, sorts out the indicators for evaluating market power, and selects appropriate indicators based on the actual situation to establish an indicator evaluation set. Applying the combination weighting method to handle indicators in a reasonable manner can provide a more scientific and objective evaluation of the overall electricity retail market and the market power level of each electricity retail company.