Development of Kilowatt-Hour Consumption Monitoring System for a State University: Real-Time Tracking with Sub-Meter

Angelo T. Aga (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Jomer C. Basa (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Tyrone Jr. M. Cailing (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Jomar D. David (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Adolfo E (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Rimando VII (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Charles Mendy D. Canonero (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)
Andrei M. Viscayno (Department of Electrical Engineering, Don Honorio Ventura State University, Philippines)

International Journal of Informatics, Information System and Computer Engineering (INJIISCOM)
Vol. 6 No. 2 (2025): INJIISCOM: VOLUME 6, ISSUE 2, DECEMBER 2025

This study details the development of an Internet of Things (IoT)-based kilowatt-hour (kWh) consumption monitoring system for Don Honorio Ventura State University. Utilizing smart sub-metering technology, the system captures real-time, granular electrical data at the building level, significantly overcoming the limitations of conventional utility meters. The integrated web-based dashboard effectively visualizes usage trends, historical consumption, and peak demand periods. Field testing in selected campus buildings confirmed the system's overall reliability, usability, and performance. Ultimately, this real-time monitoring solution enhances energy visibility, promotes cost-reduction efforts, and fosters sustainable, energy-efficient practices aligned with the university's broader smart campus initiatives