Assessment for backup to grid energy storage systems: a case study of Makindye Ssabagabo

Abstract

This study aimed to evaluate the viability of standalone Electrical Energy Storage Systems (EESS) as a backup solution to power outages in Uganda, using Makindye Ssabagabo municipality as a case study. The research was driven by four primary objectives: assessing the reliability and stability of the current electrical grid infrastructure, examining the environmental and sustainability considerations of integrating backup energy storage systems, identifying potential challenges and risks associated with their deployment, and developing actionable recommendations for enhancing grid reliability. Achieving a 100% response rate from 37 employees and 15 business owners across various SMEs including pharmacies, retail supermarkets, and mobile money services ensured valid findings. Most respondents were male, primarily aged 30-39, with many unfamiliar with EESS, indicating a need for awareness and education. A significant number of respondents were unfamiliar with EESS, highlighting a need for greater awareness and education. Frequent power outages, especially in March and June, underscored the inadequacies of current backup solutions. The study identified critical factors such as battery longevity, system resilience, and local support infrastructure as essential for evaluating EESS. The benefits of implementing backup systems included improved energy security, reduced carbon footprint, and enhanced business continuity, despite challenges like high initial costs, technical skill gaps, and integration issues with existing grid infrastructure. Recommendations include prioritizing lithium-ion batteries, investing in local technician training, selecting energy-efficient systems, and partnering with reputable suppliers. Future research should focus on long-term sustainability, community engagement, and policy implications to support effective implementation and enhance energy resilience in Uganda.