<![CDATA[The increasing energy demand in remote and coastal areas, particularly in floating raft house communities (rumah rakit apung), has driven the need for sustainable and independent power supply solutions. This study aims to design and develop a hybrid power generation system combining Solar Power Plant (PLTS) and Wind Power Plant (PLTB) to meet the electrical load requirements of a floating raft house. The system was designed in an off-grid parallel configuration consisting of 3 × 250 Wp monocrystalline solar panels (750 Wp total), a 500 W vertical axis wind turbine, a 24 V/100 Ah battery, an MPPT hybrid charge controller, and a 24V/1000VA DC-AC inverter. The research method used was Research and Development (R&D), including literature study, field observation, load analysis, system design, prototype assembly, component testing, and system performance analysis. Measurement results showed that the solar panels produced a maximum output voltage of 27.9 V with a current of 12.4 A and a power of 345.96 W at 12:00 WITA under 7,392 Lux irradiance, while the wind turbine produced a maximum output of 15.98 V, 1.12 A, and 17.90 W at 16:00 WITA with a wind speed of 7 m/s. Battery monitoring results showed that the State of Charge (SOC) reached 100% at 16:00 and remained above 80% throughout the night, confirming the reliability of the system in supplying continuous loads. The hybrid system successfully met the daily energy demand of 2,005 Wh and achieved operational cost savings of Rp30,160,000 per year compared to gasoline generators, while reducing CO₂ emissions by 5.90 tons per year. These results demonstrate that the PLTS-PLTB hybrid system is a viable, efficient, and environmentally friendly solution for electrifying floating raft house communities in coastal water environments.]]>
