# Product brief: ISO 15118 communication module

Part number: PLC-15118  
Status: Implemented, on order  
Price: on request  

Brief: PB-PLC-15118 · rev 1.0 · September 2026  
PDF: https://edgetech.eu/briefs/iso15118-module.pdf  
Full product page: https://edgetech.eu/electronics/iso15118-module

An add-on for the smart charger: HomePlug GreenPHY on the control pilot for ISO 15118 digital communication with the vehicle. With 15118-20 vehicles it shows the state of charge while charging on AC and identifies the vehicle for authorisation. Price on request; V2G under investigation.

Two things a plain Mode 3 charger cannot do: know how full the battery is, and know which car is plugged in. With ISO 15118 on the pilot, both become possible, and a charger can start for a known vehicle without a card and stop when the battery is at the level the user asked for.

## Key facts

| Specification | Value |
|---|---|
| Function | ISO 15118 digital communication over the control pilot (HomePlug GreenPHY), next to the IEC 61851 PWM signalling |
| State of charge on AC | Available with ISO 15118-20 vehicles; -2 vehicles do not report SoC on AC |
| Vehicle identification | EVCCID at SLAC, or the vehicle certificate with Plug & Charge; usable for card-less authorisation and billing |
| Fallback | Analog IEC 61851 per ISO 15118-3 when the vehicle does not speak 15118 |
| V2G / bidirectional | Under investigation. Needs a bidirectional on-board charger in the vehicle, a grid-code path for feed-in and 15118-20 bidirectional power transfer. Nothing claimed until investigated. |
| Plug & Charge | Needs a certificate backend (CPO / PKI); to be confirmed |



## Contact

info@edgetech.eu · https://edgetech.eu