Technology options generally break down into four categories: Power line carrier (PLC); Broadband over Power Lines (BPL); Hard wired such as fiber or copper; and Wireless or radio frequency (RF). Abstract—Electric power lines could, in principle, provide a ubiquitous wired communication network linking electrical loads, power meters, and other devices. This communication infrastruc-ture could unlock new sensing and control capabilities, improving the efficiency and reliability of power. In today's rapidly changing energy landscape, achieving a more carbon-free grid will rely upon the efficient coordination of numerous distributed energy resources (DERs) such as solar, wind, storage, and loads. This new paradigm is a significant operational shift from how coordination of. Afterward, a system model for the low-power communication of terminal sensors is established based on cognitive backscatter technology. Subsequently, key technologies, such as RF energy harvesting of terminal sensors and distance–energy level coupling analysis, are proposed to achieve continuous. This model is used to investigate the influence of a parallel conductor on microwave power line communication systems. When the complete current spectrum is used, it is shown that the SG mode is not the primary reason why low-loss communication is possible on power lines for distances on the order. The design and implementation of ultra-low power communication systems for Industrial Internet of Things (IIoT) applications are critical for improving reliability, energy efficiency, and performance in industrial environments. Telecommunications system are critical for protection, control, and coordination of the electric power.