O. O. Ogbeide

This project focuses on the development of a 5kVA, 48V hybrid solar inverter systemaimedat providing a reliable and sustainable energy solution for domestic and small-scaleapplications. The system integrates solar photovoltaic (PV) energy with utility grid supplytoensure an uninterrupted power source, with solar energy serving as the primary supplyandthegrid as backup. A hybrid charging approach was adopted to maintain adequate battery capacity during periods of low solar irradiation. The inverter was designed to deliver a stable output suitable for powering commonhousehold and office appliances, while incorporating essential protection features to enhancesystem safety, efficiency, and reliability. Performance evaluation showed that the inverterprovided consistent output with smooth changeover between power sources and improvedenergy efficiency. The project demonstrates a cost-effective and environmentally friendlyalternative to fuel-powered backup systems, reducing dependence on the national gridandpromoting cleaner energy usage.