Comparison of the Grid and Off-Grid Hybrid Power Systems for Application in University Buildings in Nigeria

The Nigerian Universities rely on weak and unreliable fossil-based electric grids with diesel engine generators (DEG) as a backup. However, there is potential to light up the campuses using power systems derived from primary renewable (RPS) like wind turbine (WT) solar photovoltaic (PV), that can be or off-grid improve energy mix duration reliably. This study presents comparative analysis of optimal hybrid grid (OGS & OOGS) for serving demand load university buildings in four climatic regions Nigeria. HOMER Pro used design select based minimal net present cost (NPC) electricity (COE). impact fraction 95% system architecture (OSA) COE studied both modes. Also, sensitivity key variables performance sites carried out. It found OGS PV/Converter (Conv), while OOGS, it PV/WT/DEG/battery (BB)/Conv except Port Harcourt (PH), where PV/DEG/BB/Conv. Savana monsoon climes Enugu PH are 10 19% more than warm-semi arid climate zones Maiduguri Kano, which approximately 0.09 $/kWh. ($/kWh) OOGS 0.21 Maiduguri, 0.245 0.275 0.338 PH. An obligatory RF changes increases all locations slightly improved but higher NPC other locations. established suggested beneficial feasible supplying reliable clean educational different