Cost Analysis of Multi-scenario Shared Energy Storage Considering Operational Life Conditions

The synergistic implementation of shared energy storage across varied scenarios holds profound implications for optimizing energy storage's economic returns and fortifying the power grid's agility and robustness. Addressing this, our study introduces a nuanced cost-evaluation technique for shared energy storage facilities, rooted in representative operational life-cycle considerations. Leveraging a variable significance assessment approach, we pinpoint pivotal operational features and sketch out a lifespan distribution space for shared energy storage within multiple contexts. Prioritizing the per-kilowatt-hour investment cost of the storage infrastructure as our chief optimization target, we embark on an exhaustive life-cycle cost exploration across these scenarios. Case study results affirm that when the degradation rate during operations is accounted for, a more detailed perspective on the per-kilowatt-hour investment dynamics emerges, thus enhancing the granularity and accuracy of our economic assessments.