Unfortunately, it is not technically possible for us to have your power tariff dynamically change with you like the power tariff on the energy market. This requires the total cooperation of the major energy companies and they are not inclined to cooperate on this.
Energy cap and charge tariffs - how do you deal with it?
You generally use your low energy tariff (which is what the energy cap applies to) entirely for the energy your home consumes. Charging your car often consumes so much power that you end up above the ceiling. To avoid paying a lot of extra money at the end of the year, it is best to set the high tariff on your charging point.
Conclusion:
Do you often charge your car during normal hours? Then set the high rate for this.
Do you often charge your car during off-peak hours? Then set the average between the high rate and off-peak rate.
You can adjust your electricity tariff in the portal as often as you like, but you will have to do this yourself.