Study of the Utilization of Local Renewable Energy Potential in Sebotok, West Nusa Tenggara

Abstract

To reduce the use of fossil energy sources and the utilization of renewable energy potential, a hybrid power system (HPS) generation system can be used in isolated areas. HPS utilizes renewable energy as the main source combined with a diesel engine generator as a backup energy source. The renewable energy used can come from solar energy, wind energy, and others. Sebotok Village, located in Labuhan Badas sub-district, Sumbawa regency, West Nusa Tenggara province, is an isolated area that uses 4 diesel generator units as a source of electricity generation. The purpose of this research is to identify potential renewable energy resources (wind and solar) and to develop a design and analysis of the economic feasibility of HPS in the region. The design & feasibility analysis of the Hybrid Power Plant was carried out using the Hybrid Optimization Model of Electric Renewables (HOMER Energy) simulation. This system is a combination of Wind/PV//Diesel, battery, DC/DC converter, and DC/AC inverter. The simulation results show the configuration of 160 kW PV, 160 kW PV Inverter, 100 kW diesel generator, 24 battery units, and 10 kW Converter with a dispatch strategy of load following. The configuration has the lowest Cost of Energy (COE) value of 0.139 ${\$}/\mathrm{kWh}$ and the lowest Total Net Present Cost (NPC) of ${\$} 1.06$ Million. Meanwhile, the sensitivity simulation shows that the COE value is most influenced by the price of diesel fuel, the cost of PV, and solar radiation, respectively.