We propose a social welfare maximizing market mechanism for an energy community that aggregates individual and community-shared energy resources under a general net energy metering (NEM) policy. Referred to as Dynamic NEM (D-NEM), the proposed mechanism dynamically sets the community NEM price based on aggregated community resources. D-NEM guarantees a higher benefit to each community member than possible outside the community, and no sub-communities would be better off departing from its parent community. D-NEM aligns each member's incentive with that of the community such that each member maximizing individual surplus under D-NEM results in maximum community social welfare. Empirical studies compare the proposed mechanism with existing benchmarks, demonstrating its member and community-level welfare benefits.

翻译：本研究提出一种面向能源社区的社会福利最大化市场机制，该机制在通用净能量计量（NEM）政策框架下整合个体与社区共享能源资源。该机制被称为动态净计量（D-NEM），通过基于社区聚合资源动态设定社区NEM电价运行。D-NEM确保每位社区成员获得高于社区外独立运行的收益，且任何子社区脱离母社区均不会获得更优收益。该机制使个体成员激励与社区整体激励相协调，使成员在D-NEM机制下追求个人剩余最大化的行为结果等同于实现社区社会福利最大化。实证研究将所提机制与现有基准方案进行比较，验证了其在成员与社区两级层面的福利效益。