Addressing Operational Challenges in Hybrid Solardiesel Power Systems in Coastal Tropics

This study investigates operational challenges in a 185 kWp hybrid Diesel-Solar Power Plant (PLTD-PLTS) system in the Derawan Archipelago, East Kalimantan, supporting residential and tourism energy needs. Novel in its approach, this research addresses previously unexamined environmental and structural factors impacting PV performance in tropical coastal settings, such as shading, physical damage (cracks, hotspots), and debris accumulation. Utilizing a Root Cause Problem Solving (RCPS) methodology-uncommonly applied in similar operational studies-the analysis identifies insufficient cleaning, grounding, and lack of lightning protection as critical failure points. Recommendations include scheduled maintenance, tree trimming, anti-debris mesh installation, and enhanced electrical safety. A monitoring system is also proposed to ensure long-term reliability in this unique environment.