Techno-Economic Optimization of Diesel–PV Hybrid Systems for Isolated Island Grids: Case Study of Tomia Island, Indonesia. EJIITEK [Internet]. 2026 Jul. 14 [cited 2026 Jul. 18];16(2):239-54. Available from: https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v16i2.pp239-254