Penelitian ini bertujuan merancang sistem mikrogrid optimal untuk instalasi radar TNI AU di Tanjung Sopi Pulau Morotai Provinsi Maluku Utara, guna menjamin pasokan listrik andal di lokasi terpencil. Metode penelitian menggunakan simulasi dan optimasi berbasis software HOMER Pro dengan memadukan Pembangkit Listrik Tenaga Surya (PLTS), Pembangkit Listrik Tenaga Angin (PLTB), baterai dan generator diesel. Analisis tekno-ekonomi membandingkan tiga strategi kontrol (Load Following, Cycle Charging, Combined Dispatch) dan sistem konvensional (generator only). Hasil simulasi menunjukkan konfigurasi optimal terdiri dari PLTS 511 kW (panel SunPower E20-327, efisiensi 20,1%), baterai 27 string (Polarium SLB48-300-147-5, kapasitas 48V/300Ah per unit), generator diesel 160 kW (CAT-200kVA), dan konverter 137 kW (SUNSYS PCS² OG 200kVA) dengan strategi Combined Dispatch, sedangkan PLTB tidak termasuk dalam desain konfigurasi optimal sesuai hasil simulasi dan optimasi menggunakan HOMER Pro. Sistem ini mengurangi konsumsi bahan bakar sebesar 41,7%, emisi CO₂ 41,7%, dan biaya energi (LCOE) 16,2% (dari Rp5.426/kWh menjadi Rp4.547/kWh) dibandingkan sistem konvensional. Keandalan sistem tercapai dengan capacity shortage 0% dan renewable fraction 41,78%. Simpulan penelitian merekomendasikan implementasi mikrogrid hibrid PLTS-baterai-generator untuk meningkatkan ketahanan energi, efisiensi biaya, dan keberlanjutan lingkungan pada instalasi radar militer di daerah terpencil.

This research aims to design an optimal microgrid system for the radar installation of the Indonesian Air Force (TNI AU) in Tanjung Sopi, Morotai Island, North Maluku Province, to ensure a reliable power supply in a remote location. The research method involves simulation and optimization based on HOMER Pro software by integrating Solar Photovoltaic (PV) power plant (PLTS), Wind Turbine power plant (PLTB), batteries, and a diesel generator. A techno-economic analysis compares three control strategies (Load Following, Cycle Charging, Combined Dispatch) and the conventional generator-only system. The simulation results show that the optimal configuration consists of a 511 kW solar PV system (SunPower E20-327 panels, 20.1% efficiency), 27 battery strings (Polarium SLB48-300-147-5, 48V/300Ah capacity per unit), a 160 kW diesel generator (CAT-200kVA), and a 137 kW converter (SUNSYS PCS² OG 200kVA) with a Combined Dispatch strategy, while the wind turbine (PLTB) is not included in the optimal design configuration according to the HOMER Pro simulation and optimization results. This system reduces fuel consumption by 41.7%, CO₂ emissions by 41.7%, and energy cost (LCOE) by 16.2% (from IDR 5,426/kWh to IDR 4,547/kWh) compared to the conventional system. System reliability is achieved with 0% capacity shortage and a renewable fraction of 41.78%. The study concludes by recommending the implementation of a hybrid microgrid system consisting of solar PV, batteries, and diesel generator to enhance energy resilience, cost efficiency, and environmental sustainability for military radar installations in remote areas.