One energy meter for two EVs, is there any solution to route it into two utility meters?

[serene hatch]

Hi, here is my issue, I have a Zigbee energy meter that measure how many kW is being used and total kWh for the current day.
Each of my EV car is in home assistant, I can detect when they are at home and charging, but BMW Connected Drive doesn't expose any energy meter.
My idea was to be able to tell which EV has used the power on a given period.

My idea was to use a cost utility input, and change it on the fly. It would be accurate for the price but not for the energy used.

If somebody has an idea.

Thank you 🙂

[marble phoenix]

template 2 different sensors:
if car A is charging then output=energy meter else 0
if car B is charging then output=energy meter else 0
then have a utility meter for each sensor

[serene hatch]

Oh thank you, didn't thought about this trick