Wireless telecoms for distribution networks based on WiMax

Electrical distribution networks are becoming increasingly complex systems. The addition of embedded generation, sustainable energy projects, demand side participation schemes and smart metering require the system operator to gather an unprecedented level of information in real-time from their network. Current SCADA technologies, such as power-line carrier or slow scan UHF telemetry, have a low throughput (or bandwidth) and would be overwhelmed given the task of providing data service to the volume of devices needing telecoms that are predicted to be installed on the power system in the short to medium term. This paper examines alternative and emerging solutions to providing telecoms access to remote devices, with a focus on IEEE 802.16 “WiMax”. WiMax has been gaining momentum over the last few years as a solution in fixed “last mile” environment, providing broadband internet access to rural homes and businesses, as it provides excellent geographic coverage for a reasonable capital investment.