Low-Carbon Economic Dispatch of an Integrated Electricity–Gas–Heat Energy System with Carbon Capture System and Organic Rankine Cycle

• Published in: Energies (Basel) 2023-12, Vol.16 (24), p.7996
• Main Authors: Xiong, Junhua, Li, Huihang, Wang, Tingling
• Format: Article
• Language: English
• Subjects: Alternative energy sources; carbon capture and storage (CCS); Carbon dioxide; Carbon sequestration; carbon trading; Climate change; Coal-fired power plants; Cooling; Demand side management; Efficiency; Electricity; Emissions trading; Energy consumption; Energy storage; Industrial plant emissions; Integrated approach; integrated energy systems (IES); Natural gas; Operating costs; organic Rankine cycle (ORC); power to gas (P2G); Renewable resources; Scheduling; Technology; Thermal energy
• ISSN: 1996-1073; 1996-1073
• DOI: 10.3390/en16247996

A low-carbon economic optimization dispatch model of integrated energy system is proposed to improve the low-carbon and economic efficiency of the integrated energy systems. Firstly, the waste heat generator with the organic Rankine cycle is introduced into the combined heat and power to decouple the combined heat and power operation, and a coupled model with an organic Rankine cycle, power to gas, combined heat and power and carbon capture system is established. Then, the ladder-type carbon trading mechanism is introduced to improve the low-carbon model. Finally, the function is established to minimize the sum of energy purchase costs, operation and maintenance costs, and environmental costs. The proposed integrated energy systems’ low-carbon economic dispatch model reduces the total operating cost by 18.9% and the carbon emissions by 83.7% by setting up different models for comparative analysis.