Perancangan dan Implementasi Smart kWh Meter Berbasis ESP32 untuk Manajemen Energi pada Pelanggan Rumah Tangga 1300 VA
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Nursalim Nursalim(1*)
Universitas Nusa Cendana
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wellem F Galla(2)
Universitas Nusa Cendana
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Nikxon J. Meok(3)
Universitas Nusa Cendana
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Silverster Tena(4)
Universitas Nusa Cendana
(*) Corresponding Author
Abstract
This research addresses the limitation of conventional analog and digital kWh meters that lack real-time monitoring capability and cannot provide energy consumption data from multiple loads simultaneously. The study proposes the design and implementation of a smart kWh meter system based on ESP32 microcontroller, three PZEM-004T sensors, Blynk cloud platform, and Telegram messaging service for real-time energy management in a 1300 VA residential household. The system monitors electrical parameters (voltage, current, power, energy, and power factor) from three separate load groups, displays real-time data via the Blynk mobile application, and enables remote load control through Telegram commands. Three relays automatically disconnect power supply when energy consumption exceeds user-defined thresholds, preventing overload conditions. Testing compared the smart kWh meter measurements with PLN (state-owned electricity company) standard kWh meters and demonstrated high measurement accuracy: 99.97% for current (LED lamps), 99.98% for current (fans), 99.99% for current (laptop charger and electric kettle), and 99.99% for energy measurements across all load types. The system successfully manages energy consumption, provides real-time load control, and enables efficient household electricity management. These findings demonstrate the practical feasibility of IoT-based smart metering for residential energy management with high accuracy and user-friendly control interfaces.
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References
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