With the increasing penetration of intermittent renewable resources, the energy demand is more fluctuating. Thus, the concept of energy sharing is brought up to smooth the energy demand of the prosumers and to ensure system stability. In this paper, a two-stage credit-based sharing model between the coordinator who manages the shared energy storage system (ESS) and the prosumers who borrow the capacity and energy from the coordinator is presented. Both capacity and energy sharing are integrated via the proposed credit-based sharing model. As for energy sharing, two forms of energy are considered: electricity and hydrogen. In addition, both cost-based and demand-based pricing strategies are introduced to customize the sharing prices so that the coordinator can obtain larger net profits and the prosumers can reduce their energy purchase costs. According to the simulation results, the proposed model is beneficial for both the coordinator and the prosumers. For the coordinator, the net profits can be enhanced, and the storage usage efficiency has been increased from an average of 39% to 62% compared with the conventional model. From the perspective of the prosumers, the self-sufficiency ratio and the willingness-to-participate ratio are increased by 14.5% and 20%, respectively, compared with that under the conventional model. Moreover, it is cost-saving for the prosumers to participate in the credit-based sharing process.

中文翻译：

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基于信用的氢电储能共享定价和规划策略


随着间歇性可再生资源的渗透率不断提高，能源需求波动更大。因此，能源共享的概念被提出，以平滑产消者的能源需求并确保系统稳定性。本文提出了管理共享能源存储系统（ESS）的协调者和从协调者借用容量和能源的产消者之间的两阶段基于信用的共享模型。容量和能源共享通过拟议的基于信用的共享模型进行整合。至于能源共享，考虑两种形式的能源：电力和氢气。此外，引入基于成本和基于需求的定价策略来定制共享价格，使协调者可以获得更大的净利润，产消者可以降低其能源购买成本。根据模拟结果，所提出的模型对协调者和产消者双方都有好处。对于协调者来说，净利润可以得到增强，存储使用效率比传统模型从平均39%提高到62%。从产消者角度来看，自给率和参与意愿比传统模式下分别提高了14.5%和20%。此外，产消者参与基于信用的共享过程可以节省成本。