M2M and ZigBee
Snippet from the ZigBee newsletter
The Alliance has seen strong interest from electric utilities around the globe in using ZigBee to help their consumers be more energy efficient. Several utilities are now in active development of customer programs which will make use of ZigBee enabled electric meters being installed at homes throughout the territory. Utilities leading this market development include utilities from California and Texas as well as Canada and Australia. Other utilities beginning to explore the use of ZigBee for their customers include utilities in California, Connecticut, Michigan, Missouri, Ohio and Virginia along with Scandinavia, France and Japan. The key for utilities in developing robust customer programs for energy efficiency is using open standards like ZigBee. ZigBee enables utility owned devices, such as electric meters to communicate with consumer owned devices, such as thermostats, appliances, lighting system, etc. This communication network is known as the Home Area Network (HAN). With a standards-based HAN able to communicate with the electric meter, home owners can receive information about real-time energy prices, up-to-date energy consumption and other information direct from devices in their home without waiting for the monthly bill to telling them what happened last month. In May, Texas became the first state to require utilities to include HANs as part of their upgrade plans, if the utility wishes to seek cost recovery from the public. Currently, several other legislative bodies are considering similar approaches for utilities in their state or country.
http://www.zigbee.org/en/newsletters/2007_08-Newsletter/0807-external.asp#newsletter