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EV charging glossary

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.

Read more ISO 15118 software stack

Related terms

Power Line Communication

ISO 15118

Combined Charging System
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