Design and Construction of Off-Grid PLTS Installation in a Smart Home

Siti Nurhayati Jabir; Zainal Akbar; Roby Tristiantoro; Taufik Muchtar

doi:10.31963/elekterika.v23i1.6339

Authors

Siti Nurhayati Jabir Politeknik ATI Makassar
Zainal Akbar Politeknik ATI Makassar
Roby Tristiantoro Politeknik ATI Makassar
Taufik Muchtar Politeknik ATI Makassar

DOI:

https://doi.org/10.31963/elekterika.v23i1.6339

Keywords:

Off-grid solar power system, solar panel, maximum power point tracking, smart home, power monitoring

Abstract

The increasing demand for household electrical energy continues to grow along with the widespread use of electronic devices and the development of smart home technologies. However, the availability of electrical power from conventional energy sources is not always sufficient to meet these demands sustainably. One potential solution is the utilization of an off-grid Solar Power Plant (PLTS off-grid) system that can operate independently without reliance on the public electricity grid. This research aims to design and construct an off-grid solar power installation integrated into a smart home system and to measure the performance of the generated electrical power. The proposed system consists of solar panels, a Maximum Power Point Tracking (MPPT) controller, batteries, an inverter, an Automatic Transfer Switch (ATS), and a WiFi-based smart MCB. The research methodology includes system design, component installation, and direct performance testing through electrical parameter measurements. The results indicate that optimal system performance occurs during midday, between 11:00 and 14:00, with the solar panel current reaching 31.6 Amperes, panel voltage of 78 Volts, and battery voltage of 54.4 Volts. In the afternoon, between 15:30 and 17:00, system performance decreases due to reduced solar irradiance. Furthermore, five-day air conditioner energy consumption data show that the off-grid solar power system is capable of meeting household electrical energy needs, with a total energy output of 9.222 kWh. These results demonstrate that the installation and power measurement of the off-grid solar power system were successfully implemented, and that electrical energy production is strongly influenced by solar irradiance intensity. Keywords: Off-grid solar power system, solar panel, maximum power point tracking, smart home, power monitoring.

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