Sharing energy in wider area: A two-layer energy sharing scheme for massive prosumers

Yifan Su, Peng Yang, Kai Kang, Zhaojian Wang, Ning Qi, Tonghua Liu and Feng Liu

Applied Energy, 2025, vol. 392, issue C, No S0306261925006981

Abstract: The popularization of distributed energy resources transforms end-users from consumers into prosumers. Inspired by the sharing economy principle, energy sharing markets for prosumers are proposed to facilitate the utilization of renewable energy. This paper proposes a novel two-layer energy sharing market for massive prosumers, which can promote social efficiency by wider-area sharing. In this market, there is an upper-layer energy sharing market (U-ESM) in the distribution system and numerous lower-layer energy sharing markets (L-ESMs) in local communities. Prosumers in the same community share energy with each other in the L-ESM, which can be uncleared. The energy surplus and shortage of L-ESMs are cleared in the U-ESM. Thanks to the wider-area two-layer structure, the market outcome is near-social-optimal in large-scale systems. However, the proposed market forms a complex mathematical program with equilibrium constraints (MPEC). To solve the problem, we propose an efficient and hierarchically distributed bidding algorithm. The proposed two-layer market and bidding algorithm are verified on the IEEE 123-bus system with 11,250 prosumers, which demonstrates the practicality and efficiency for large-scale markets.

Keywords: Energy sharing; Transactive energy; Two-layer market; Game theory; Mathematical program with equilibrium constraints (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.apenergy.2025.125968

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