Continuity of electrical supply is essential to airport safety and operational resilience. This structured evidence review develops an integrated framework for assessing backup generator sets, with implications for Juanda International Airport. The synthesis draws on a core set of 15 publications comprising six direct airport studies and nine transferable studies on generator reliability, emergency power, microgrids, storage, forecasting, and outage mitigation. Evidence is organized into technical feasibility, lifecycle economics, and reliability and resilience. The principal assessment variables are capacity adequacy, start and transfer performance, voltage and frequency quality, fuel endurance, maintenance readiness, lifecycle cost, availability, redundancy, and recovery capability. Airport studies support integrated microgrid and energy-management approaches, while transferable studies inform standby-generator reliability and emergency-power continuity. The framework evaluates generator sets within a critical-load supply architecture and identifies the load, outage, testing, fuel, maintenance, and cost data needed for a Juanda-specific assessment. The search documentation reports 348 Scopus records, but incomplete screening records prevent reconciliation of a final PRISMA inclusion count. The findings therefore support framework development rather than a quantitative assessment of the existing airport system.
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