Real-Time Energy Monitoring and Management in Educational Institutions: A Case Study of Universitas Brawijaya
Keywords:
energy management system, PZEM power sensors, ESP32 controllers, real-time monitoring, energy efficiencyAbstract
Energy consumption in educational institutions, particularly universities, represents a significant portion of operational costs and has substantial environmental impacts. This study focuses on developing an energy management system for the Faculty of Vocational Studies at Universitas Brawijaya, Indonesia. Utilizing advanced technologies such as PZEM power sensors and ESP32 controllers, the system aims to monitor and manage energy usage at the classroom level. The system includes PZEM power sensors for accurate measurement of electrical parameters, ESP32 controllers for data processing and transmission over Wi-Fi using HTTP, and a cloud-based server for data storage and real-time analytics. A user-friendly web-based dashboard was developed to provide real-time and historical data visualization, allowing faculty management to monitor energy usage, identify
inefficiencies, and make informed decisions. The preliminary results showed significant variations in energy consumption across
different classrooms and floors, with an average 20% higher consumption in the afternoons compared to mornings. Key performance metrics indicated a data transmission latency of 500 milliseconds, a data packet loss rate of 1.5%, and an energy data
accuracy of ±1%. User feedback highlighted the dashboard's intuitive design and usefulness in identifying energy-saving opportunities. The system demonstrated potential cost savings of up to 15% of the annual energy bill. Future work will focus on expanding the system to other faculties and integrating additional features such as automated control of electrical devices and predictive analytics.
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