Development of Web-Based Real-time Energy Monitoring System for Campus University
Keywords:Calibration, Energy Monitoring System, ESP8266 Wi-Fi Module, Energy Performance, 3 Phase Measurement,
AbstractThis study presents development of real time energy monitoring system installed in Level 17, Tower 2, Engineering Complex, Universiti Teknologi MARA (UiTM), Malaysia. The device and programming uses microcontroller board Arduino, ESP8266 Wi-Fi module, sensors and Emoncms.org web server to record and display the real time power and energy consumption, energy cost, energy index and CO2 emissions. The device allows 3 phase measurement of energy use in the building level where the main power source has been divided into several loads such as lighting, power plug, and Air Conditioning (AC) fan. The device is capable to transmit the data at set time interval using Wi-Fi communication and logging directly to local SD card for further analysis. The device was calibrated using FLUKE 485 power meter concurrently to meet a good reliable result with lower tolerance. The device was installed and tested during testing period including weekdays and weekend to see hourly energy performance in the particular building level. It is found that the device provides reading with average error of 2.04% as compared to commercial meter during one week testing period.
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