Published date: Mar 22 2024

Journal Title: KnE Social Sciences

Issue title: International Conference on Engineering Management and Sustainable Innovative Technology (ICEMSIT)

Pages: 363–372

DOI: 10.18502/kss.v9i10.15742

Widodo Pudji MuljantoNational Institute of Technology (ITN) Malang, Malang, Indonesia

Abraham LomiNational Institute of Technology (ITN) Malang, Malang, Indonesia

Radimas Putra Muhammad Davi LabibNational Institute of Technology (ITN) Malang, Malang, Indonesia

Muhammad Wahyu SolihinNational Institute of Technology (ITN) Malang, Malang, Indonesia

A monitoring system is needed to determine the performance of an off-grid solar power plant. This paper presents a monitoring system design for an off-grid solar power plant with a capacity of 4 kWp. This off-grid solar power plant system was built on campus 2 of Institut Teknologi Nasional Malang. The purpose of a monitoring system is to collect and present information systematically about the state of the off-grid solar power plant system. This information can be accessed anywhere and anytime by users. Hardware used includes SPM91 to read energy meters digitally, PZEM-017 as a Modbus-based measuring instrument, and communication devices to send data to a database server. The monitoring system dashboard was built using Haiwell SCADA software. The result was a monitoring system that can display parameter data, data loggers, and graphs of the condition of the off-grid solar power plant. The PZEM-017 has an accuracy rate of 99.48% for voltage readings and 98.76% for current readings. Meanwhile, the SPM91 has an accuracy rate of 99.89% for voltage readings and 99.25% for current readings.

Keywords: monitoring system, off-grid solar power plant, SCADA software

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