This achievement involved research on key technologies such as the STS prepayment protocol, DLMS/COSEM communication protocol, switching power supplies, IoT communication, and dual-mode communication. Products including energy meters, in-house terminals, AMI systems, and prepayment systems compliant with international standards such as IEC62052, IEC62053, IEC62055, and IEC62056 were developed. These products have passed testing and certification from internationally authoritative organizations such as DLMS, STS, G3-PLC, and KEMA. In addition, intelligent anti-tampering technology, an enterprise service bus, and corresponding products were proposed, forming a comprehensive new smart power solution.