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This study developed a power management algorithm for a hybrid renewable energy system incorporating PV, battery, hydrogen storage, and diesel generator backup. The algorithm aimed for exclusive renewable energy generation, optimal PV array sizing, and balanced hydrogen production/consumption. A simulation assessed 440 system configurations, identifying 40 that met these criteria. The optimal system, determined to be 10.23 kWp PV, 120 kWh battery, and 4 m³ hydrogen storage, achieved zero diesel generation and a 25.8% excess PV generation over annual load demand.