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All Journal Jurnal Teknologi Elekterika Journal of Social Research
Parapa, Hendra Budiono Putra
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Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Social Sciences

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Studi Skema Konfigurasi PLTS (Studi Kasus: Pulau Kaledupa, Sulawesi Tenggara) Parapa, Hendra Budiono Putra
Jurnal Teknologi Elekterika Vol. 19 No. 2 (2022): Nopember
Publisher : Jurusan Teknik Elektro Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v6i2.3568

Abstract

PLTS as one of the most promising technologies to produce economical, clean and sustainable electrical energy can currently increase the national energy mix because of its nature that can be easily built and its development requires a short time compared to other technologies. The purpose of this research is to study the PV mini-grid configuration scheme in the islands. The case study used in this research is on Kaledupa Island, Southeast Sulawesi. The data used is the actual data on the electrical load on the island of Kaledupa and data on the potential for solar radiation sourced from solarglobalatlas.info. Actual electrical load data and solar radiation potential data are processed using an excel application to calculate the PLTS capacity and energy storage system, then a capacity sizing analysis is carried out from the calculation results. This study concludes that the PV, Energy Storage System and Diesel configuration scheme is the most likely scheme to be applied to the electricity system on the island of Kaledupa, taking into account the load conditions in the electrical system
The Optimization of Efficiency in Grid-Connected PV Systems in Tropical Climates Using a Single-Axis Solar Tracker Based on Simulation Parapa, Hendra Budiono Putra; Budiarto, Rachmawan; Ridwan, Mohammad Kholid
Journal of Social Research Vol. 5 No. 4 (2026): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v5i4.3106

Abstract

The high potential for solar radiation in the tropics demands a Solar Power Plant (PLTS) system that can adapt to the sun's dynamic annual movements. Conventional fixed-tilt systems tend to be suboptimal at low latitudes due to the limited variation in solar radiation angle throughout the year. This study aims to evaluate and optimize the performance of on-grid solar power plants using a horizontal east-west single-axis solar tracker (SAT), as well as to analyze the effect of increased thermal losses on system efficiency in tropical climatic conditions. The case study was conducted on an on-grid solar power plant with a capacity of 50.4 kWp located in Mawang, Makassar (5.22° S), with a fixed-tilt system at a tilt angle of 17° as a comparison. The research methodology used a PVsyst software-based simulation approach with the activation of a backtracking scheme to mitigate inter-row shading at a ground coverage ratio of approximately 55.8%. The simulation results showed that the application of single-axis trackers increased the annual energy channeled to the grid (E<sub>Grid</sub>) by 4.81%, equivalent to 3,149 kWh. However, the increase in the Performance Ratio (PR) was relatively limited, from 0.794 to 0.798, due to the increase in module thermal losses reaching 13.3%. These findings make a quantitative contribution regarding the trade-off between increased irradiation capture and thermal penalty in the application of single-axis trackers in the tropics, and confirm that the optimization of tracking systems depends not only on optical aspects but also on the thermal management of photovoltaic modules.
Co-Authors Mohammad Kholid Ridwan Rachmawan Budiarto