Phase switching on ev charger (from 1 phase to 3 phases and vice versa)

[cchhrriiss]

Hi, this looks like a very good automation! I want to try it. But I have the following question:
I have an ev charger (KEBA P40) which is controlled via Modbus TCP from HA. It also supports a command to do phase switching from 1 phase to 3 phases and vice versa. With this function the power can be adjusted from 1.4 kW (1 phase 6A) to 11kW (3 phases 16A). This gives a very wide power range for solar surplus charging.
Does this automation support phase switching logic?
If no, does anybody has an idea how I could extend this automation to support phase switching? e.g. by somehow making a calculation with a template sensor based on the output of this automation or so...

[flashg1]

Suggest to try using a template sensor to calculate the "Charger effective voltage", eg.

Charger effective voltage = phase count * line voltage

I think that is all you need provided you have the "phase count" value in HA.

"phase count" can be a template sensor as well, eg. if exported solar is greater than certain amount, set to 3 phase, otherwise set to 1 phase.

[cchhrriiss]

Thanks for the quick answer and suggestion! I will try it.