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RANCANG BANGUN SISTEM ABSENSI SISWA SMKN KAIDIPANG MENGGUNAKAN RFID DAN ESP 8266 BERBASIS WEB Korompot, Samsul; Tansa, Salmawaty; Wiranto, Ifan; Dako, Amirudin Yunus; Bonok, Zainudin; Nasibu, Iskandar Zulkarnain
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 12 No. 1 (2024): RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v12i1.447

Abstract

Abstract : Design and Construction of a Kaidipang Vocational School Student Attendance System Using WEB-Based RFID and ESP 8266. This research aims to build a web-based RFID and ESP8266 attendance system. This system uses RFID cards to identify students and store attendance data digitally. The methods used in this research are literature study, observation and experiment. The research results show that the RFID and web-based ESP8266 attendance system can read and process data quickly and accurately, and student attendance is recorded correctly. This system can also operate consistently and does not experience significant disruption. The implementation of an RFID-based and web-based ESP8266 attendance system at SMK Negeri 1 Kaidipang is expected to increase the efficiency and effectiveness of recording student attendance data at SMK 1 Kaidipang, which currently still uses conventional attendance, resulting in time inefficiencies, proneness to loss of absence data, and the use of a lot of paper. and attendance printing costs.
Comparative Analysis and Optimization of GIS-Based Rooftop Solar Power Plants Hidayat, Ikhsan; Salim, Sardi; Tolago, Ade Irawaty; Mohamad, Yasin; Bonok, Zainudin
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 1 (2026): Januari - Juni 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i1.34333

Abstract

The increasing demand for electricity and the global commitment to carbon reduction have encouraged higher education institutions to integrate renewable energy into campus infrastructures. However, most previous rooftop PV studies at Universitas Negeri Gorontalo (UNG) have been limited to single-building assessments or have not fully integrated spatial analysis with technical simulation. This study addresses this research gap by conducting a comparative analysis and system optimization of a rooftop photovoltaic (PV) installation at the Faculty of Engineering building using a combined Geographic Information System (GIS) approach and detailed technical simulation through HelioScope. The optimized design yields a total capacity of 368.79 kWp comprising 647 Canadian Solar 570W modules. Simulation results indicate an annual energy output of 486.5 MWh with a Performance Ratio (PR) of 95.8%, where PR represents the ratio of actual system performance to ideal irradiance conditions, and a solar access value of 99.2%. The economic assessment shows a payback period of 11.04 years under an export tariff of IDR 1,440/kWh. Furthermore, a comparative evaluation with two previous studies demonstrates significant improvements in both technical and economic aspects due to the integrated GIS and high-resolution simulation approach. The findings provide a valuable reference for advancing renewable energy implementation in educational institutions, particularly in designing efficient and sustainable rooftop PV systems.