Wallbox calculator

Estimate wallbox investment, compare it to public DC charging and see what charging power makes sense for your EV.

Wallbox type

Wallbox price (EUR)

Installation price (EUR)

EV model

Monthly mileage

1 250 km

Home electricity price (€/kWh)

Public DC price (€/kWh)

Wallbox payback

Investment after subsidy

€1200

Monthly saving

€39.38

Payback

31 months

Scenario	Price / kWh	Monthly	Yearly
At home	€0.18	€39.38	€472.50
Public DC	€0.36	€78.75	€945

With a 3-phase 11 kW wallbox, a daily distance of about 42 km charges in 40 min.

Recommendation for your EV

The optimal choice is 3-phase 11 kW.

In 5 years

€1162.50

In 10 years

€3525

What shapes wallbox investment

The total wallbox cost is not just about the unit itself. Power level, protective devices, cabling, electrician work and the current state of the home electrical installation all play a role in the final budget.

The business case becomes stronger when home charging replaces expensive public DC charging. That is why usage pattern matters almost as much as the hardware price.

Why home charging changes the economics

A wallbox is not only about saving money. It also improves convenience, availability and the ability to leave each morning with a charged battery without depending on public infrastructure.

Frequently Asked Questions

What does a home wallbox actually cost?

The total cost includes both the hardware and installation work. The final number depends on power level, cabling, protection and how ready the existing electrical setup is.

Is a wallbox worth it without subsidies?

It can be, especially if you replace regular public fast charging with cheaper home charging. Higher monthly mileage improves the payback case.

How much wallbox power do I need?

Your EV onboard AC charger is the key limit. If the car only accepts 7.4 kW AC, a more expensive 22 kW setup brings limited benefit.

Is the benefit only financial?

No. Convenience matters a lot too. A home wallbox makes charging more predictable and removes dependence on public infrastructure for everyday use.