Volume 2 - Issue 2, March - April 2026

The global energy sector is undergoing rapid transformation due to rising electricity demand and the need for efficient power distribution. Modern power systems are evolving toward Smart Grids, which require real-time monitoring of energy consumption. Traditional energy meters depend on manual readings or mechanical systems, which are prone to errors and cannot provide remote monitoring or real-time analysis. Earlier smart metering solutions using GSM, Wi-Fi, and ZigBee introduced challenges such as network dependency, subscription costs, limited range, and higher power consumption. This project proposes an IoT-Enabled Smart Energy Meter using LoRa Communication, designed to provide accurate and long-range energy monitoring without relying on cellular networks or internet infrastructure. The system uses a dual ESP32 architecture consisting of a transmitter and receiver. At the transmitter node, the PZEM-004T v3.0 energy monitoring module measures key electrical parameters such as voltage, current, power, energy consumption, frequency, and power factor using a non-invasive current transformer. The ESP32 processes these readings to generate additional insights like session runtime and load condition. Wireless communication is achieved using the SX1278 LoRa module operating at 433 MHz, which enables reliable long-distance data transmission up to 2–5 km in open environments with low power consumption. This makes the system suitable for remote areas, industrial sites, and rural power monitoring. The system also features a local web-based monitoring dashboard hosted by ESP32 in Access Point mode, allowing users to view real-time energy data through smartphones or laptops. Additionally, a 0.96-inch OLED display on the receiver provides quick visual monitoring of system data and signal strength. Overall, the proposed system offers low cost, improved privacy, and flexible deployment, making it suitable for applications such as smart homes, industrial monitoring, microgrids, and smart city energy management.

Siyad S, Dr.S.Kannan,"IoT Enable Smart Energy Meter Using LoRa Communication" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(2): Page(1382-1387) Mar-Apr 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.