Hybrid Power Plant System Analysis in Seruni Beach, Bantaeng District, South Sulawesi

Abstract

Seruni Beach is one of the tourist attractions in Bantaeng Regency, South Sulawesi. As an area that has potential as a tourist place, it must be supported by adequate electricity supply. The electricity source in Seruni Beach is only sup-plied by the State or PLN power plants. To reduce the electricity supply from the National Electric Company, a hybrid power plant is designed that utilizes the potential of alternative energy sources in the form of wind and solar energy. The purpose of this study is to produce efficient solar and wind hybrid plants as a backup generator in sup-plying the loads that are around the coast. The study uses HOMER as an optimal generator determinant. The indicators are used as economic valuations, namely payback period (PP), net present value (NPV), net present cost (NPC), and cost of energy (COE). The study uses 2 schemes to calculate the indicators used. Scheme 1 only uses the grid as a supplier of electricity, and in scheme 2 uses wind turbines, solar panels, and grids. The results of this research are solar and wind power hybrids producing 390,620 kWh/year. Scheme 1 has a higher NPC value of Rp 4,632,183,000 while scheme 2 has an NPC value of Rp 2,555,496,645. The costs incurred by scheme 2 to produce electricity per kWh are smaller, namely Rp. 304,709 compared to the scheme 1 in the amount of Rp. 1467.28. in scheme 2, the NPV is positive in the amount of Rp. 1,037,919,493 and from the results of the calculation of the payback period, the time needed to recover the investment costs of solar and wind power plants is 5 years 10 months.