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A review of energy storage for power system resilience: Functions, metrics, and applications

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  • She, Buxin
  • Wu, Di
  • Kwon, Kyung-bin

Abstract

Aging infrastructure, increasing operational complexity, and surging electricity demand from artificial intelligence and electrification are straining the grid and heightening the risks of disruptions, making resilience a critical priority. Energy storage is increasingly deployed to provide critical power supply, fast grid support, and rapid restoration. However, current practice lacks consistent metrics and systematic methodologies to rigorously quantify the resilience benefits of storage. This paper provides a comprehensive review of energy storage in resilience enhancement, focusing on functional roles, quantification metrics, and integration strategies. A structured resilience metrics library is compiled and categorized to encompass both technical and economic performance aspects. Existing methodologies for resilience-oriented storage planning and operations are critically examined. Key technical and practical challenges are identified, and future research directions are outlined to strengthen storage contributions to grid resilience.

Suggested Citation

  • She, Buxin & Wu, Di & Kwon, Kyung-bin, 2026. "A review of energy storage for power system resilience: Functions, metrics, and applications," Applied Energy, Elsevier, vol. 420(C).
    • Handle: RePEc:eee:appene:v:420:y:2026:i:c:s0306261926007087
    DOI: 10.1016/j.apenergy.2026.128056
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