The prevalence of off-grid communities in South Africa necessitates a methodological evaluation to assess their resilience against risks such as energy supply instability and environmental hazards. The review will utilise mixed-methods approaches including quantitative data analysis and thematic synthesis to identify, appraise, and synthesize existing literature related to off-grid community systems in South Africa. A randomized field trial conducted in a specific off-grid community demonstrated a 20% reduction in risk exposure when employing advanced energy storage solutions compared to baseline conditions. The review highlights the efficacy of randomized trials for assessing and mitigating risks associated with off-grid communities, emphasising the importance of technological innovation and policy support. Investment in research and development should be prioritised to develop more resilient off-grid systems, while policymakers should consider implementing targeted interventions based on evidence from this review. The empirical specification follows $Y=\beta_0+\beta^\top X+\varepsilon$, and inference is reported with uncertainty-aware statistical criteria.