ISO 15118-20:2022Published

Road vehicles — Vehicle to grid communication interface — Part 20: 2nd generation network layer and application layer requirements

Véhicules routiers — Interface de communication entre véhicule et réseau électrique — Partie 20: Exigences des couches réseau et application de 2ème génération

Abstract / scope

This document specifies the communication between the electric vehicle (EV), including battery electric vehicle (BEV) and plug-in hybrid electric vehicle (PHEV), and the electric vehicle supply equipment (EVSE). The application layer messages defined in this document are designed to support the electricity power transfer between an EV and an EVSE.

This document defines the communication messages and sequence requirements for bidirectional power transfer.

This document furthermore defines requirements of wireless communication for both conductive charging and wireless charging as well as communication requirements for automatic connection device and information services about charging and control status.

The purpose of this document is to detail the communication between an electric vehicle communication controller (EVCC) and a supply equipment communication controller (SECC). Aspects are specified to detect a vehicle in a communication network and enable an Internet Protocol (IP) based communication between the EVCC and the SECC. 

Life cycle

Amendments & corrigenda

ISO 15118-20:2022/Amd 1:2026PublishedRoad vehicles — Vehicle to grid communication interface — Part 20: 2nd generation network layer and application layer requirements — Amendment 1: AC DER service, MCS service, and improved security conceptInternational Standard · Published 13 Jul 2026 · ISO/TC 22/SC 31