This article from Trilliant, an electric metering company, examines the pros and cons of including a gateway in an electric meter. The gateway translates communications telemetry between a neighborhood network and a home network. Although the number of smart meters to be deployed may reach 100 million over the next five years and half may include gateways, the number of households with home networks may reach only 20% by 2013. There are technical challenges for the gateway to communicate successfully with a home network if the gateway uses radio or power line carrier, depending on the meter location. Also, a gateway in a meter cannot adopt the variety of competitive home network technologies. The conclusion is that a gateway should be in a home device, not in a meter.