Power Line

For European power wiring, about 200 residences share a single transformer. Using FM modulation in the 3-15 MHz band, data rates of 500 kb/s to 1 Mb/s (symmetric, shared medium) can be achieved. For the US, a far smaller number of dwellings share a distribution transformer, due to the lower voltage and a power rating higher by a factor of two. Examples:

Internet Technical Notes and Resources
Last updated by Henning Schulzrinne