Installing a home EV charger in Belgium: power, connection and registering with Fluvius

Which power fits your connection

Belgian homes have one of two kinds of connection. A single-phase connection (1 x 230 V), common in older houses and apartments, is usually fused at 40 A, which allows a charger of 7.4 kW at 32 A with room left for the house. A three-phase connection is either 3 x 230 V without neutral, typical in older parts of the province of Antwerp, or 3 x 400 V plus neutral in newer homes. Both can run an 11 kW charger at 16 A per phase; the newer type is needed for 22 kW at 32 A per phase.

In practice 7.4 kW is enough for nearly every household. A car that uses 18 kWh per 100 km and drives 50 km a day needs about 9 kWh a night, which is 75 minutes at 7.4 kW. Even a nearly empty 75 kWh battery charges fully in about ten hours. Higher power mostly raises your peak for the capacity tariff without saving you anything.

You can read your connection type from the main circuit breaker next to the meter: 1 x 40 A, 3 x 25 A, 3 x 40 A and so on, and from the number of live wires. If the connection is too light, Fluvius can upgrade it (a verzwaring) on request; count on a few hundred euro for a fuse increase and more if the cable or meter has to change, with a lead time of several weeks.

What the installation involves

A charger is never plugged into an existing socket circuit. The Belgian electrical code, the AREI, requires its own circuit from the fuse box with a dedicated automatic fuse and residual current device. Because an EV charger can leak DC current that a standard RCD does not detect, the device is either a type B RCD or a type A RCD combined with DC leakage detection inside the charger. The cable is sized for the length and the current, typically 6 mm2 for 32 A single-phase or 2.5 to 4 mm2 for 16 A three-phase.

The job then has these steps:

• Checking the fuse box for space and whether the earth connection measures below 30 ohm
• Running the cable from the fuse box to the parking spot, through the house or along the facade
• Mounting the charger and, if wanted, the energy meter the charger uses for dynamic load management
• Configuring load management, solar surplus charging and the app
• Inspection by an accredited body and registration with Fluvius

Registering with Fluvius

Since June 2021 every private charging point connected to the Flemish low-voltage grid has to be registered with Fluvius, the distribution grid operator, including chargers that were installed before that date. The threshold is 5 kVA, so every real wallbox falls under the rule; a simple charging cable on a household socket does not always. Registration is done online in Mijn Fluvius under green energy, new installation, with the inspection certificate and the technical data of the charger. Bidirectional chargers follow a separate procedure.

The owner of the connection is responsible, not the installer and not the employer who paid for the charger. Fluvius can impose an administrative fine of 117.68 euro for an unregistered charger. In early 2026 the Flemish energy minister asked Fluvius to contact owners first and fine only as a last resort, but the obligation itself has not changed. Agree in writing with your installer who files the registration, and ask for the confirmation.

Fluvius uses the registrations to plan the grid: a street with twenty chargers needs a heavier cable than one with two. There is no cost for registering and no change to your tariff.

What decides the price and what the company pays

The price of an installed home charger of 7.4 or 11 kW depends on the brand, the cable length and whether the fuse box needs an extension. It covers the dedicated circuit, protection, inspection and registration, and after the site visit you receive a fixed price in the quote. The inspection by an accredited body costs about 135 to 200 euro. For a home older than ten years, 6 percent VAT can apply to the installation, under conditions (the home is mainly used privately and you sign a declaration); we confirm that at the site visit.

If you drive a company car, your employer or leasing company usually reimburses the electricity you charge at home. That requires a charger with a certified MID energy meter and a link to the platform the employer uses, so that the kilowatt hours are reported automatically. Ask your fleet manager which platform before you choose a charger; retrofitting a meter is more expensive than ordering it at the start.

Charging and the capacity tariff

A charger at 7.4 kW running in the early evening is the single biggest driver of a high monthly peak under the capaciteitstarief, the capacity tariff on your digital meter that is explained in the capacity tariff article. Every kW of peak costs roughly 45 euro a year. Dynamic load management solves most of it: the charger measures what the house is drawing and lowers its own power so that the total stays under a limit you set, then charges at full speed after midnight.

If you have solar panels, the same charger can follow your surplus during the day and charge the car with electricity you would otherwise inject at 0.04 euro per kWh. Combined with a home battery you can cover most of a commute from your own roof in summer. Roakus-E configures both modes at installation and files the Fluvius registration as part of every EV charger job.