STUDI PERANCANGAN SOLAR ENERGY UNTUK SISTEM EMERGENCY LAMPU DI LABORATURIUM TEKNIK AKADEMI ANGKATAN LAUT (AAL)

Reliable and sustainable lighting is crucial for supporting practical activities in a military educational environment, particularly in the Engineering Laboratory Workshop (Labtek) of the Naval Academy. The main problem faced is complete dependence on electricity supply from PLN, which is prone to disruptions and outages, thus impacting the safety and effectiveness of technical activities. Therefore, this research aims to design a solar-powered emergency lighting system as an environmentally friendly and efficient alternative lighting solution. This research uses the Research and Development (R&D) method with a case study approach at the Naval Technology Laboratory (Labtek) of the Naval Academy (AAL). The stages include power requirement analysis, direct observation of building and lighting conditions, selection of solar energy system components, and calculation of solar panel and battery capacity. Based on the analysis results, the total emergency power requirement of 1.96 kW can be met using 100 Wp monocrystalline solar panels and 12V 100Ah batteries for energy storage.The system design consists of solar panels, a solar charge controller, batteries, and LED lights that automatically turn on when the power goes out. Simulation results show that the system is capable of providing emergency lighting for 6–10 hours, depending on sunlight intensity and battery capacity. The implementation of this system not only improves the reliability of Labtek facilities but also supports nat ional clean energy policies and long-term operational cost efficiency.