Multi-User Coalition Formation for Peer-to-Peer Energy Sharing

Peer-to-Peer (P2P) energy sharing enables users to share their local energy resources based on an agreed cost-sharing mechanism. The users will need to form coalitions to coordinate the operations of their energy management systems. Each coalition should be stable, such that no users will collectively deviate to form other coalitions with better utility. However, there has been no effective coalition formation algorithm, other than 2-user coalition formation (as known as stable matching). In this paper, we present multiuser coalition formation algorithm, extending deferred acceptance algorithm, for P2P energy sharing under various fair cost-sharing mechanisms. We also evaluated coalition formation with 3 and 4-user coalitions for P2P energy sharing with real-world data traces.