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 prices based on aggregated community resources, including flexible consumption, storage, and renewable generation. 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 welfare benefits, operational characteristics, and responsiveness to NEM rates.

翻译：本文提出了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）政策下整合了个人与社区共享的能源资源。该机制被称为动态净计量（D-NEM），其根据社区聚合资源（包括柔性用电、储能和可再生能源发电）动态设定社区净计量电价。D-NEM确保每位社区成员获得高于社区外可能实现的收益，且任何子社区脱离原属社区都无法获得更优收益。通过使社区成员个体在D-NEM机制下的利益与社区整体目标保持一致，每个成员在追求自身剩余最大化时将自动导向社区社会福利最大化。实证研究将该机制与现有基准方案进行对比，验证了其社会福利效益、运行特性以及对净计量电价的响应能力。