Developments of technology forces all society elements to mitigate future risks by applying green technology and concerning energy sustainability. The rapid change of the internet allows people to take advantage of the Internet of Things (IoT) in energy manage-ment. The public has widely used IoT-based smart meters to monitor and control energy consumption in many households. The architecture of an IoT system consists of three main layers: device, network, and application, which are implemented to manage utility. The IoT-based smart meter device functions to monitor the use of electrical energy and enable kWh balance top-up. The smart electric meter is implemented to substitute post-paid con-ventional electricity meters with pre-paid ones. The smart electric meter device is embed-ded with a LoRa (long-range) communication module to send electricity data via the Lo-RaWAN (long-range wide-area network). LoRaWAN is confirmed as one of the most re-liable connectivity for IoT use in rural areas. LoRaWAN meets the needs of low-power, remote, efficient and affordable IoT technology in utility energy monitoring. The Lo-RaWAN network was built in the Musi Banyuasin area to meet the needs of implementing LoRaWAN-based smart electric meters. According to the results of the LoRa study, the gateway can optimally meet the connectivity needs of smart electric meters in rural areas. A gateway can reach a maximum distance of 1.58 km, with an RSSI of −99.40 dBm ±4.56 dBm. LoRa gateway availability can achieve 100% by implementing a gateway protection system. The data sent through the LoRa gateway is then consumed by the user at the ap-plication layer, where all electrical energy data are stored in the IoT Platform. Then by utilizing the API (Application Programming Interface), users can seamlessly consume data and display all monitoring results on the monitoring dashboard. The monitoring dashboard has features that read energy consumption on the smart electric meter and recap all energy usage. The dashboard also allows users to top-up their kWh balance when the electric bal-ance in each home is nearing the limit.