What you're actually buying

A home charger (wallbox) does three things a regular socket doesn't: it charges several times faster, it's safer for sustained high loads, and it usually wastes less energy. Whether it's worth the money depends mostly on how you'd charge without it.

The costs, roughly

As of 2026, for a typical 7-11 kW home wallbox:

Hardware: €400-1,200 ($450-1,300). Basic units are fine. You're paying extra for app features, load balancing, and solar integration.
Installation: €300-1,500 ($350-1,700) for a straightforward job. The electrician, cabling, and a dedicated circuit are the core of it.
The expensive surprises: a long cable run to a detached garage, or an electrical panel that needs upgrading, can push the total well past €3,000.

Many countries and utilities still offer grants or tax credits for home charger installation. Check what applies locally before assuming the full price. It changes the payback math a lot.

The payback calculation

The wallbox pays for itself through the gap between home and public charging prices.

Say you drive 15,000 km/year at 18 kWh/100 km, about 2,700 kWh of charging:

Home at €0.29/kWh: about €780/year
Public charging at €0.55/kWh: about €1,490/year

That's roughly €700/year saved by charging at home. A €1,500 installation pays for itself in about two years, and faster if you have a cheap overnight tariff. After that it's pure savings for as long as you own an EV.

If you could already charge from a regular socket at home, the math is thinner: the wallbox mostly buys you speed and a few percentage points of charging efficiency. That's convenience more than savings, and convenience is a legitimate reason. Just be honest that that's what you're paying for.

Can't you just use a regular socket?

Sometimes, yes. A standard socket delivers 2-3 kW, which adds roughly 10-15 km of range per hour. If you drive modestly and the car sits at home every night, that genuinely covers it.

The caveats:

Slow charging wastes more energy. The car's electronics run for the whole session, so a 10-hour trickle charge loses a bigger share to overhead than a 3-hour wallbox charge.
Sustained max load on a household socket for hours, night after night, is exactly the scenario domestic sockets weren't designed for. If you go this route, have an electrician check the circuit.

When to skip the wallbox

You can't charge at home at all (street parking, apartment without garage rights). The decision is out of your hands; your numbers depend on public and workplace charging instead.
Your employer offers free or cheap workplace charging that covers your driving.
You drive so little that even public charging is a small line item.

Put it in the bigger picture

A charger is a one-time cost in a decision dominated by recurring ones. If you're working out whether the whole EV switch makes sense, add the installation cost to the purchase price in the ownership calculator and let the yearly savings tell you the break-even. For the day-to-day energy comparison, the fuel cost calculator is the place to start.