EVALUASI TEKNIS SISTEM FOTOVOLTAIK HIBRIDA OFF-GRID UNTUK SUBSTITUSI DAYA PEMAKAIAN SENDIRI PADA INSTALASI WTP PLTU MALINAU

Muhammad Arif, Eri Wibowo, Muhammad Firdan Nurdin

Abstract


A standalone hybrid photovoltaic (PV) system integrated with lithium-ion battery storage was designed and evaluated to substitute the auxiliary power demand of the Water Treatment Plant (WTP) at the Malinau Coal-Fired Power Plant (2x3 MW), North Kalimantan, Indonesia. Through PVsyst 8.0 simulations utilizing local irradiance, load profile, and shading parameters, the system achieved an annual solar fraction of 94.3% and a performance ratio (PR) of 67.91%, delivering 120.13 MWh/year of useful energy. Battery round-trip efficiency reached 94.9%, indicating minimal energy loss during storage. These results demonstrate the system's technical viability for replacing fossil-based auxiliary energy in tropical industrial settings. Further implications include cost savings, emission reduction, and enhanced reliability.

 


Keywords


hybrid PV system; auxiliary load substitution; PVsyst simulation; battery efficiency; off-grid solar; water treatment; performance ratio

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DOI: https://doi.org/10.35334/eb.v11i2.6829

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