Industry jargon

HomePlug Green PHY

HomePlug Green PHY is a power-line communications technology used in wired EV charging to carry high-level data between the vehicle and EVSE. It is the PLC technology associated with CCS implementations of ISO 15118. The communication is coupled onto the charging conductors rather than requiring a separate Ethernet cable between the vehicle and charge point. ISO 15118-3 defines the physical and data-link requirements for this wired communication. HomePlug Green PHY sits below the ISO 15118 application layer. It transports the data; it does not define Plug & Charge, charging tariffs or the charging-control messages themselves.