Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (11): 3708-3719.doi: 10.19799/j.cnki.2095-4239.2022.0265

• Technical Economic Analysis of Energy Storage • Previous Articles     Next Articles

Effect analysis of a shared energy storage policy based on system dynamics

Guojing LIU1(), Hu LI1, Bingjie LI1, Jing SHI1, Xing ZHANG2()   

  1. 1.Economic and Technical Research Institute of State Grid Jiangsu Electric Power Co. , Ltd. , Nanjing 210008, Jiangsu, China
    2.China Energy Storage (Beijing) Consulting Service Co. , Ltd. , Beijing 100190, China
  • Received:2022-05-17 Revised:2022-06-16 Online:2022-11-05 Published:2022-11-09
  • Contact: Xing ZHANG E-mail:278053997@qq.com;13681071429@139.com

Abstract:

Shared energy storage adopts unified planning, construction, and scheduling and has the advantages of low initial investment, low operation risk, and guaranteed equipment quality, as well as being conducive for realizing multiple values. In the future, it is expected to become the mainstream model for the coordinated development of energy storage and new energy. The sustainable and healthy development of this model is inseparable from the support of reasonable and effective policies. In this paper, the development status of shared energy storage in China is analyzed, and the system dynamics model of photovoltaic and shared energy storage is established using the system dynamics method. Based on the actual and planning data of a province, the model parameters are determined, and the changes in the installed capacity of photovoltaic and energy storage under different policy scenarios, such as configuration proportion, configuration duration, rental cost, and annual scheduling times, are simulated. The results show that the development of a shared energy storage policy should (1) comprehensively consider the new energy and energy storage planning objectives, system flexibility requirements, and other factors, (2) actively expand energy storage revenue sources, and (3) reasonably allocate energy storage costs to the source, grid, and load to realize the high-quality coordinated development of new energy and energy storage.

Key words: shared energy storage, system dynamics, policy effect

CLC Number: