Hybrid Energy Storage Systems (HESS) have emerged as a promising solution to address reliability and stability challenges in remote mini-grid systems. This study presents a comprehensive literature review on the application of HESS in remote mini-grids, based on recent publications from 2020 to 2024. Through a systematic analysis of 45 scientific articles, this research identifies technological trends, implementation challenges, and future development opportunities for HESS. The findings reveal that the combination of lithium-ion batteries with supercapacitors and flywheels is the most popular configuration, achieving system efficiency improvements of up to 92% and operational cost reductions of 35%. The main challenges identified include the complexity of energy management systems, component sizing optimization, and high initial investment costs.
                        
                        
                        
                        
                            
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