As prosumers and energy communities gain promi- nence in power systems, energy trading between prosumers in local Peer-to-Peer (P2P) markets is paramount. Within this novel market design, peers can directly exchange energy with each other, leading to economic advantages while supporting the de- carbonization of the sector. To ensure that voltage and congestion issues are properly addressed, a thorough coordination between the P2P market and the Distribution System Operator (DSO) is required.

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... s paper presents and compares three mutual-benefit coordination methods. The first method entails applying product differentiation on an iterative basis to avoid exceeding the lines thermal limits, which is performed through penalties on P2P exchanges that may be overloading the network. The second method uses the P2P market with an Alternating Current Optimal Power Flow (AC-OPF), ensuring network operation through a flexibility market via upward and downward flexibility. The last one proposes an integrated operation of the P2P market with AC-OPF. All methods are assessed in a typical distribution network with high prosumers integration. The results show that the second method is the one that, fulfilling the network constraints, presents greater social welfare.