Prepaid single-phase smart electricity metering system composed of a meter unit and customer interface unit (CIU), designed for controlled energy distribution and structured billing environments.

The system supports STS-compliant prepaid functionality and enables secure energy management across residential and light commercial applications. It is suitable for deployment scenarios requiring prepaid control, user-side interaction and remote monitoring.

With a modular communication design, the STE18-G supports multiple network options including PLC, RF, GPRS, 3G and 4G LTE, allowing utilities to adapt to local infrastructure conditions. Communication modules can be replaced independently, enabling cost-effective upgrades and maintenance without replacing the entire meter.

Designed for integration into AMI systems, the solution supports scalable deployment, operational flexibility and long-term infrastructure compatibility.