“Techno-Economic Optimization of Diesel–PV Hybrid Systems for Isolated Island Grids: Case Study of Tomia Island, Indonesia”. ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK 16, no. 2 (July 14, 2026): 239–254. Accessed July 18, 2026. https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v16i2.pp239-254.