Abstract:Spot market can increase the peak shaving capacity of the system, which can effectively reduce new energy abandonment and promote the consumption of new energy. However, non-price discrimination in spot market can cause participating members to lack incentives and reduce their willingness to participate. In spot market, the self-owned power plant load, small industrial load during the valley period, and the spot market members of newly-added heating load units are expanded, and then the priority transaction object is determined according to the order of clearing. Dispatching costs under new energy curtailment and spot market verify the effectiveness of the proposed improved spot market dispatching method.