Performance Comparison of On-Grid and Off-Grid Hybrid Photovoltaic Systems for the TRET Building
DOI:
https://doi.org/10.32492/jeetech.v7i2.7202Keywords:
Performance, PLTS On-Grid, PLTS Off-Grid, PLTS Hybrid, TRET BuildingAbstract
The Renewable Energy Engineering Technology (TRET) Building has a high demand for electrical energy, requiring an efficient and sustainable energy supply system. One potential solution is the implementation of a Solar Power Plant (PLTS). This study aims to compare the technical performance and economic feasibility of hybrid, on-grid, and off-grid PLTS systems applied to the TRET Building at Politeknik Negeri Ujung Pandang. The research was conducted over five months through literature review, system design, implementation, testing, and data analysis. Performance evaluation was carried out using indicators such as Specific Yield, Reference Yield, Performance Ratio (PR), and system efficiency, while economic feasibility was analyzed through investment cost, operational cost, energy production cost, Net Present Value (NPV), Profitability Index (PI), and Internal Rate of Return (IRR). The results indicate that the hybrid PLTS achieved the best technical performance, with a Performance Ratio of 122.5% and system efficiency of 23.58%, compared to the on-grid system with 106.4% PR and 20.46% efficiency, and the off-grid system with 56.1% PR and 10.73% efficiency. Economically, the hybrid system required the highest investment cost of Rp 21,835,139.00; however, it also produced the highest NPV and IRR values, indicating better long-term feasibility and sustainability. Therefore, the hybrid PLTS system is considered the most optimal solution for application in the TRET Building due to its superior technical performance, operational reliability, and economic sustainability.
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Copyright (c) 2026 Muhammad Ruswandi Djalal, Marhatang Marhatang, Muhammad Sudaryono, Ahmad Zahir
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