# Bidirectional EV charging interface

Canonical URL: https://eloragrid.ai/symbols/bidirectional-ev-charging-interface
Publisher: Elora Grid
Updated: 2026-10-27
Lookup label: V2G
Drawing use: Schematic
Reference families: Manufacturer

A bidirectional charging interface supports controlled energy transfer in both permitted directions.

## In plain English

### What does Bidirectional EV charging interface mean?

A bidirectional charging interface supports controlled energy transfer in both permitted directions.

### A simple example

A compatible installation can use vehicle energy to support another electrical system under its operating arrangement.

### What the drawings help you do

Use arrows in both permitted energy directions and identify the controller authorising each operating mode. The vehicle, charger and connected system must support the intended exchange. Keep the energy path separate from communication and operating permission so hardware capability is not mistaken for permission to export.

### Before using this reference

- Identify the intended charging and export modes.
- Show the compatible vehicle and system-control interfaces.
- Reference operating permissions and the complete selected equipment.

### Can any bidirectional charger export to a public grid?

No. Hardware capability alone does not establish vehicle compatibility, an approved installation or permission to export. Those conditions must be confirmed for the selected system and location.

### Terms

- Bidirectional: Capable of the specified transfer in two directions.
- Export: Supplying energy from the vehicle-side system to the connected system.

Concept diagram: Vehicle energy interface → Bidirectional conversion → Permitted connected-system mode
Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.

- [DC fast charging architecture](https://www.ti.com/solution/dc-fast-charging-station)


## What it represents

A bidirectional charging interface supports controlled energy transfer in both permitted directions.
A compatible installation can use vehicle energy to support another electrical system under its operating arrangement.
Use arrows in both permitted energy directions and identify the controller authorising each operating mode. The vehicle, charger and connected system must support the intended exchange. Keep the energy path separate from communication and operating permission so hardware capability is not mistaken for permission to export. This is original functional artwork, not a certified standard graphic or device pinout.

## How to read it

- Identify the intended charging and export modes.
- Show the compatible vehicle and system-control interfaces.
- Reference operating permissions and the complete selected equipment.
- Bidirectional hardware does not by itself establish grid permission, compatibility or operating approval.

## Information to show or reference

- Identify the intended charging and export modes.
- Show the compatible vehicle and system-control interfaces.
- Reference operating permissions and the complete selected equipment.

## Important distinction

Bidirectional hardware does not by itself establish grid permission, compatibility or operating approval.

## Facts

- Representation type: Original functional block; not a certified IEC or IEEE graphic
- Concept input: Vehicle energy interface
- Concept output: Permitted connected-system mode

## Public references

- [DC fast charging architecture](https://www.ti.com/solution/dc-fast-charging-station) — Texas Instruments. DC fast charging architecture: public technical context for the named function. Product and compliance details remain with the publisher.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.