Techno-Economic Assessment of the Viability of Commercial Solar PV System in Port Harcourt, Rivers State, Nigeria

Supermarkets in Port Harcourt (PH) city, Nigeria, predominantly rely on diesel electricity generation due to grid instability, leading high prices. Although solar photovoltaic (PV) systems have been proposed as an alternative, these supermarkets yet adopt them, mainly investment costs and a lack of awareness the long-term financial environmental benefits. This paper examines technical economic practicality PV system for using PVsyst software spreadsheet model. Solar resources showed that PH has daily average radiation temperature 4.21 kWh/m2/day 25.73 °C, respectively. Market Square, supermarket with highest peak power demand 59.8 kW 561 kWh/day load profile, was chosen case study. A capacity 232 kW, battery storage 34,021 Ah, charge controller size 100 A/560 V, inverter rating 60 V/75 designed meet demand. The analysis $266,936 life cycle cost, $0.14 per kWh levelized cost (LCOE), 4-year simple payback time, 20.5% internal rate return (IRR). is feasible its positive net present value (NPV) $165,322 carbon savings 582 tCO2/year.