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All Journal International Journal of Industrial Innovation and Mechanical Engineering
Maulana Adi Prakoso
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Astronomy Computer Science & IT Engineering

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Design of a 50 Wp Off-Grid Solar Power Plant Using a Linear Actuator Solar Tracker System Muhammad Fajry Setiawan; Maulana Adi Prakoso; Komarudin Komarudin; Erfiana Wahyuningasih
International Journal of Industrial Innovation and Mechanical Engineering Vol. 3 No. 3 (2026): August: International Journal of Industrial Innovation and Mechanical Engineeri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijiime.v3i3.420

Abstract

Conventional solar power plants (PLTS) generally use fixed-angle solar panels that follow the roof inclination, limiting their ability to capture maximum solar radiation throughout the day, particularly during the afternoon when the panels are no longer perpendicular to the sun. To overcome this limitation, this study proposes the design of a 50 Wp off-grid photovoltaic system equipped with a linear actuator-based solar tracking mechanism and a portable support frame. The research aims to develop an alternative renewable energy system capable of automatically adjusting the panel orientation to maximize solar energy absorption, improve electrical output, and accelerate battery charging. A quantitative experimental approach was employed by comparing the performance of the PLTS before and after the implementation of the solar tracker. System performance was evaluated using a Seaward photovoltaic tester and a clamp ammeter to measure voltage and current output. The results indicate that the solar panel absorbs radiant energy at a rate of 242.352 J/s, of which approximately 20% is converted into electrical energy (48.4704 W), while the remaining 80% is dissipated as heat. The developed system can operate independently for up to three hours without grid support and requires approximately 2.5 hours to fully charge the battery. Mechanical analysis confirms that the linear actuator safely withstands the applied load of 74 N, well below its allowable limit of 5,528 N. These findings demonstrate the feasibility of the proposed design as an efficient, reliable, and portable off-grid renewable energy solution.
Validasi Eksperiment of a 50Wp Off-Grid Solar Power Plant Using a Linear Actuator Solar Tracker System Maulana Adi Prakoso; Muhammad Fajry Setyawan; Komarudin Komarudin; Asri Nugrahanti
International Journal of Industrial Innovation and Mechanical Engineering Vol. 3 No. 3 (2026): August: International Journal of Industrial Innovation and Mechanical Engineeri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijiime.v3i3.422

Abstract

Electrical energy is essential for daily life in Indonesia, particularly in remote areas where access to the national grid remains limited. Off-grid solar power systems offer a promising solution, although fixed photovoltaic (PV) installations are less efficient because they cannot follow the sun’s movement. This study experimentally evaluated the performance of a 50 Wp off-grid solar power system equipped with a linear actuator-based solar tracker and assessed its structural safety using Finite Element Analysis (FEA) in SolidWorks. A quantitative experimental approach compared a fixed PV system positioned at a 34° angle with a solar tracker system. Data on PV voltage, solar flux, and battery voltage were collected every 30 minutes between 11:00 a.m. and 2:00 p.m. Results showed that the solar tracker maintained more stable power generation and reduced afternoon output losses, producing an average power of 15.83 W compared with 6.79 W from the fixed system. Battery charging was also faster using the tracker. FEA results confirmed that all support structures met safety standards, with maximum stresses below the ASTM A36 yield strength and acceptable Factors of Safety. These findings demonstrate that linear actuator-based solar trackers significantly improve off-grid solar power performance while maintaining structural reliability.
Co-Authors Asri Nugrahanti Erfiana Wahyuningasih Komarudin Komarudin Muhammad Fajry Setiawan Muhammad Fajry Setyawan