Remunerated distribution strategy of carbon quotas in integrated energy systems based on sealed-bid auctions

The focus of this paper is the fairness problem in carbon trading markets caused by allocation systems, and the problem that the punishment for the excessive carbon emissions in existing carbon trading markets are not strict enough and the control of carbon emissions is not obvious. The proposed solution is a novel carbon quota trading model based on a two-stage sealed-bid auction. This model adopts a remunerated distribution method, grouping multiple integrated energy systems under a single agent, and introduces an auction strategy among these systems. Through a series of simulation results, it is found that compared with the gratuitous distribution model, the trading model proposed in this paper can reduce system carbon emissions by more than 8% within the carbon trading price range of 20-40 CNY/t. In addition, the simulation results show that the model proposed in this paper and the traditional auction model can generally improve the operating revenue of the integrated energy system by more than 20%. The experimental results verify that the model and strategy proposed in this paper playa crucial role in promoting the internal carbon trading system and reducing the carbon emission potential of the integrated energy system.