Peak limit calculator

Calculate your peak limit for home charging.

Enter how much you drive and when your car is at home. You can see which limit for the power consumption of your home and charging station can serve as a starting point. We also estimate the capacity tariff if that peak returns every month.

Takes less than a minuteNo email address requiredYour data remains on your device

01 How much do you drive on a normal busy day?Daily distancekmBased on the kilometers you want to top up before your next departure.

02 When will your car be at home?

Home fromDepart at

Departure may be the next morning.

03 How much does your home consume?

LowMainly basic consumptionAverageTypical householdHighHeat pump or boiler

During charging, we calculate an average of 0,4 kW for your home at 'Low', 0,8 kW at 'Average' and 1,5 kW at 'High'.

Make my calculation more accurate

Driving consumption of your car, without charging lossesFor example 18 kWh/100 km on your on-board computer. The calculator calculates charging losses separately.kWh/100 kmMaximum AC charging powerWhat your car can handle via a regular charging stationOwn average home consumptionLeave empty to use the chosen home profilekWNormal monthly peak without chargingOptional, found in Mijn FluviuskWConnection during chargingOnly choose a three-phase option if the car also charges in three phasesActual main fuseNot mandatory. We use this to check whether the calculated setting suits your connection.A

Enter your charging rhythm to calculate your target value.

Proposed peak limit

—kW

a starting point to limit the power that your home and charging station together demand from the grid

Enter your charging rhythm to calculate your target value.

We expect that 90% of the charging current ends up in your battery. We also provide 10% extra energy for the winter and keep 30 minutes of charging time as a reserve.

Indicative capacity tariff 2026— / jaar incl. 6% btw— average per month

First calculate your peak limit to see the estimated cost of the capacity tariff.

Need energy: —
Time available: —
Average for car: —
House included: —
Lowest calculated limit: —
Practical bandwidth: —

Have my setting checked

This calculation provides a guideline value for a home in Flanders with a digital meter. It does not change your physical main fuse and does not predict your entire energy bill. With a social rate you do not pay a capacity tariff. With a classic meter, your actual monthly peak is not measured.

For the cost estimate we use the Flemish average of € 53.39 per kW per year excluding VAT for 2026. We assume that the calculated peak returns every month. The average of your monthly peaks counts for your invoice. The exact rate depends on your network area.

Your actual consumption depends on the temperature, your driving style, the phases used and the devices operating simultaneously. For a multi-phase connection, your installer will need to check the current on each phase to determine the correct ampere limit. We do not count on solar panels or a home battery always being able to provide sufficient power. Never set a limit via the app or other software higher than the electrical protection allows.

What the calculator does

A peak limit that suits your daily journeys.

The calculator estimates how much power your car needs for your daily journeys. It takes into account the time you have to charge and the electricity that your home uses at the same time.

The proposed limit applies to the electricity that your home and charging station together draw from the grid. Estimated costs are based on the average Flemish capacity tariff for 2026. Your connection must support this power level. The result is an estimate; your actual energy bill may differ.

Read the complete guide about the capacity tariff at a charging station

Kilometers

Determines how much energy your car needs before your next departure.

Available charging time

Determines how many hours are available to replenish that energy steadily.

House

Take into account the electricity your home uses during charging.