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Bidirectional EV charger: sending power from your car back to your home

Not only charge your car, but also use the battery for your home. What is genuinely possible today?

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The battery of an electric car is large, and the idea of also using it for your home captures the imagination. A bidirectional charging station makes that possible in principle: charging when electricity is cheap or abundant, and feeding power back to your home when you need that energy.

Around a bidirectional charging station, also known as V2G (vehicle to grid) or vehicle to home, many expectations circulate. We explain soberly what the technology is, which conditions apply and what is realistic today, so that you make a well founded choice.

What is a bidirectional EV charger?

An ordinary charging station sends power in one direction: from the grid to your car. A bidirectional charging station can also go the other way: draw energy from the car battery and supply it to your home (vehicle to home) or to the grid (vehicle to grid).

That way your car can temporarily serve as a kind of home battery. That is attractive now that self consumption has become more important and a more even consumption counts because of the capacity tariff.

Electric car in a garage connected to a wall charger with a display
Photo: smart-me AG / Pexels

Conditions and limitations

Bidirectional charging requires more than just the right charging point. Your car must support it too, and that is not yet the case with every model. In addition, the connection, the metering and the applicable regulations all play a part.

The technology is still developing and the range of suitable cars and devices is growing step by step. What is possible today differs from what will be commonplace in a few years. We give you an honest picture of the current state of play for your situation.

Realistic expectations

Bidirectional charging could become interesting, but it is not a ready-made solution for every home. Whether it already makes sense for you depends on your car, your consumption, your installation and the rules around exporting to the grid.

If you want to store and manage energy today, a fixed home battery is in many cases a more predictable choice. We will look together at what suits you best and is future-proof.

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Frequently asked questions

What does V2G or vehicle to home mean?
V2G (vehicle to grid) and vehicle to home mean that you not only charge your car's battery, but also draw energy from it for the grid or your home. A bidirectional EV charger makes that possible.
Does bidirectional charging work with every car?
No. Your car must support bidirectional charging, and that is not yet the case for every model today. The charger, the connection and the regulations also play a part.
Can my car power my entire home?
That depends on your car, your consumption and your installation. Bidirectional charging can cover part of your consumption, but we make no fixed promises about that. We look at what is realistic.
Should I choose a bidirectional EV charger or a home battery?
If you want to store and steer energy predictably today, a fixed home battery is often the more predictable choice. What suits you best depends on your situation and future plans.

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Curious whether V2G suits you?

We look at your car, your installation and your consumption and give you an honest picture of what is feasible today. Ask for advice.

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