Optimal sizing and sensitivity analysis of Hybrid Renewable Energy Systems: A case of Ur island in Indonesia

This study presents the design optimization and sensitivity analysis of the hybrid renewable energy system (HRES) for Ur island in Indonesia. The Ur Island is a remote island where local residents unreachable by electrical network systems but has potential to utilize the solar Photovoltaic (PV) and wind energy. The analysis of the hybrid systems is modeling in the Hybrid Optimization Model for Electric Renewable (HOMER) to find out the most cost-effective configurations for electricity requirement of 234 kWh/day primary load with 25.6 kW peak load. The results show that system with the configuration of PV-Wind-Diesel-battery delivers the best optimal design for Ur island in terms of cost of energy (COE) and Total Net Present Cost (TNPC). In addition, the impact of solar radiation, wind speed, diesel price, O&M cost, investment cost and replacement cost are identified by carrying out the sensitivity analysis.