Study on the Economic Optimization of Park Integrated Energy System with Electricity-Heat-Cooling-Gas under Carbon Trading

In the context of establishing an energy system that helps achieve “carbon peaking” and “carbon neutrality”, it is important to introduce carbon trading into the integrated energy system to further promote the system's emission reduction capacity. This study establishes an economic dispatch model for the park integrated energy system by introducing the carbon trading cost, which contains four subsystems: electricity, heat, cooling and gas, and discusses the effects of introducing carbon trading on carbon emission, operation cost and equipment output of the park integrated energy system by comparing the dispatch results under two scenarios with and without carbon trading. The results show that the introduction of carbon trading reduces the output of high-carbon equipment and contributes to carbon reduction in the park by coordinating low-carbon equipment, energy storage and external energy sources to meet the park's load demand. The allocation of initial carbon quotas significantly affects the system's total cost, and their reasonable setting to enable the park to obtain emission reduction benefits will be an important topic affecting its motivation.