Telecommunication networks are one of the most important factors for assuring a successful advanced metering infrastructure. The choice of the appropriate technology is not an easy decision for electricity distribution companies. Several questions arise.
PRIME (PoweRline Intelligent Metering Evolution) is a PLC (Power line communication) technology based on the ITU G.9904 specification. It uses OFDM (Orthogonal Frequency Division Multiplexing) technology to provide an efficient physical connectivity to elements that make up a smart grid, employing medium and low voltage power distribution networks that already exist.
An amendment to Spanish law in 2006 requires all domestic electricity meters to include a means for accurate real-time meter readings, as well as remote manageability. These new electricity meters are called smart meters.