Home charging: 11 kW or 22 kW wallbox

11 kW is often enough

Many buyers look for a 22 kW wallbox because the number sounds better. In a home setting, 11 kW is often the more practical choice. Overnight, it can add enough energy for daily use without requiring such a high connected power supply.

22 kW makes sense with a suitable three-phase installation, sufficient available power, a car with a 22 kW onboard charger, and a genuine need for faster AC charging.

What to check before installation

• Do you have your own parking space or approval from the building's homeowners' association.
• What power is available on your electrical connection.
• Is there room for a dedicated circuit, proper protection, and correct wiring.
• Does your car support 11 kW or 22 kW AC charging.
• Is load balancing needed if there are other major power consumers.

Costs and safety

Don't choose a charger based on maximum power alone. What matters is quality installation, residual current protection, overload protection, the right cable, and the possibility of future servicing. Installation should be carried out by a qualified electrician.

Relationship with public charging

Home charging reduces cost and reliance on public stations, but it doesn't eliminate the need for them. For long trips, check CCS availability, power, and reliability along your route in advance.