Electricity, Heat and Gas Coupled Integrated Energy System Considering Reward and Punishment Gradient Carbon, Electricity and Gas Trading

This paper proposes an optimal scheduling model for a coupled electricity, heat, and gas integrated energy system, aiming to address excessive carbon emissions and inefficient energy utilization by incorporating a reward and punishment gradient carbon trading mechanism. This paper fully considers the utilization rate of renewable energy, integrates Power-to-Gas and Carbon Capture and Storage, and optimally schedules electricity, heat, and gas to enhance energy utilization efficiency across all sectors. Additionally, the system incorporates a reward and punishment gradient carbon trading mechanism, encouraging enterprises to actively reduce carbon emissions. Comparative studies demonstrate a reduction in carbon emissions by 106.68% compared to an integrated energy system under the ordinary carbon trading mechanism, along with an 80.85% decrease in carbon trading costs and a total cost reduction of 19.93%. Efficient energy utilization, lower carbon emissions, and reduced economic costs can better support the country in achieving its dual-carbon goals.