2026. Analysis of Energy Supply Substitution from a Diesel Power Plant System to a Solar Power Plant System Based on Capacity Design for the Office Load of PT XYZ in Karimun Regency, Indonesia. Jurnal Vokasi Mekanika. 8, 3 (Aug. 2026), 157–170. DOI:https://doi.org/10.24036/cz0ekp13.