Joint energy and carbon responsibility sharing among electricity prosumers

Abstract

In the emerging energy-sharing market, exchanging power equipment usufruct enables energy interaction among prosumers, entailing embodied carbon transfers. This underscores the importance of electro-carbon synergy. Existing studies lack systematic methods to allocate carbon responsibilities in energy-sharing contexts while preserving participant autonomy. To address this gap, a novel framework integrating cross-regional energy sharing with reference-value-based carbon responsibility sharing is proposed. This framework ensures mutual benefits, while achieving supply and demand-side carbon reduction incentives and coordinated managing energy and carbon flows. A solution algorithm is developed, incorporating an energy-sharing mapping model to address the complex interactions among multiple flexible prosumers, ensuring both robustness and privacy protection. The framework enhances prosumer flexibility and participation in local energy sharing, ensures equitable carbon responsibility allocation, and introduces novel market signals by penalizing high-carbon producers and rewarding low-carbon ones, thereby creating a balanced incentive structure, a feature currently lacking in existing research. A comparison with the current no energy-sharing scenario, demonstrates a cost savings of 19.98% and a reduction in carbon emissions by 7.86%. Compared to producer-based and consumer-based responsibility allocation schemes, the proposed framework achieves a balanced distribution between economic and environmental benefits, ensuring a more equitable allocation of both financial gains and environmental responsibilities. Research findings expand the distributed energy local trading mode and demonstrate the value of joint energy and carbon responsibility sharing for the energy system’s low-carbon economic transition.