Indonesia has abundant renewable energy potential; however, its utilization remains significantly lower compared to fossil energy. To address electricity supply limitations in remote areas, a hybrid power generation system combining microhydro and solar photovoltaic (PV) sources can be implemented. This study aims to analyze the effect of load variation on system stability, particularly voltage and battery capacity, to measure power fluctuations due to load changes, and to evaluate the performance of each energy source during simultaneous operation (battery charging while supplying loads). The experiment was conducted using three load variations: light load (±25 W), medium load (±50 W), and heavy load (±100 W). Parameters observed include voltage and current from the PV and microhydro, load power, initial and final battery State of Charge (SoC), and test duration for each load condition. The results show that under light load, the system maintained a voltage close to 220 V with SoC decreasing from 80% to 76.1% over 60 minutes. Under medium load, the voltage remained stable with SoC dropping from 80% to 64.5% within 30 minutes. Under heavy load, SoC decreased rapidly from 80% to 62.8% in only 12 minutes, although the output voltage remained around 220 V. The solar PV served as the main energy source during daylight, while the microhydro provided a relatively constant supplementary supply. The hybrid system was effective for light and medium loads; however, for heavy loads, an increase in battery and inverter capacity is required to maintain system stability. Recommended strategies include increasing energy storage capacity, using higher-efficiency inverters, and implementing load management aligned with available energy resources.