IMPACT OF GRID INTERCONNECTIVITY ON SOLAR MINI-GRID POWER GENERATION: CASE STUDY OF FMWH MABUCHI, FCT, ABUJA, NIGERIA

Adopting solar mini-grid systems interconnected with the main grid is a promising approach to enhancing energy access and sustainability in urban areas of developing countries. In Nigeria, where electricity demand outstrips supply, particularly in peri-urban and rural regions, integrating mini-grid solar energy resources with existing grid infrastructure addresses the persistent energy deficit. This study investigated the effectiveness of such integration at the Federal Ministry of Works and Housing (FMWH) Mabuchi, Abuja. The project involved installing 3,968 photovoltaic panels, each with an average power rating of 383 watts, generating a total of 1.52 MW. Additionally, 4,053 lithium-ion batteries, each with a capacity of 10 kWh, provided a total energy storage capacity of approximately 40.53 MWh. Maximum Power Point Tracking (MPPT) technology optimized the solar panels' efficiency, resulting in an additional 152.07 kW of energy output. The enhanced reliability and stability of the energy supply, achieved through grid interconnectivity and MPPT, mitigate solar power intermittency, providing a stable and resilient energy system. Improved energy access fosters economic opportunities and enhances the quality of life, particularly in peri-urban and rural areas. The system can power approximately 5,000 households, significantly impacting local communities. Furthermore, the project can create over 200 jobs during the installation phase and is expected to generate 50 permanent positions for ongoing operations and maintenance. Integrating mini-grid solar energy resources with the main grid at FMWH Mabuchi will significantly enhance power generation and improve energy access, underscoring the potential of such systems to drive sustainable energy development in urban areas of developing countries. Future research should focus on long-term performance assessment, maintenance strategies, and developing robust regulatory frameworks to support widespread adoption.