Use EVCC to monitor energy consumption, but leave control with wallbox' original system

[VeronikaWehrle]

Hi all,

I have a question / request, that might sound a bit like a misuse of EVCC: I would like to use EVCC to just monitor the loading, BUT I do not want to use EVCC to control the loading.

That might sound rather strange, therefore let me explain why.
We have two PV plants (a very old one and a Fronius Symo) and a Wattpilot for loading.
The system is configured for excess solar power load, and this works fine; the energy of both plants is used to charge the car.

I can monitor the solar power production of the inverter, etc. with my smart home system (openhab), but what I'm missing is the information how much energy is loaded into the car and it's SoC, etc.
This is where EVCC comes into play; in can easily be integrated into openhab and would provide me with all information I want.

BUT it conflicts with the systems own configuration.

Using EVCC to control the loading is not really an option. With EVCC the power of the old solar plant is not taken into account; it seems as if the Fronius inverter does not expose the information to EVCC.

So to put it short: Is there a way to use EVCC and it's integration into e.g. openhab, but to leave the control for loading with an other system (e.g. the Fronius system)?

Thanks,
Veronika

[VolkerK62]

With EVCC the power of the old solar plant is not taken into account;

if this is the main reason, you can provide this information also via mqtt

But back to your wish. I do similar with my tumble dryer.
Charger is a switchsocket which is always in "fast" mode. If the dryer is in use, the energy is counted.
I think it is not possible by configuring your wattpilot in evcc.
So you must configure a grid or pv meter (could be a dummy), a dummy charger, a charge meter for the power of your wattpilot and your car.
Depending on the charge power, the dummy charger must report the correct status.

[dglaude]

For other reasons, I would like to be able to tell evcc to "not touch" but let the user (or an external system) do the control (I am more than happy if it continue to display the status).

Usecases are:

• If the end-user does not master evcc UI yet, or want to use scheduling from the car because it is currently easier for that user.
• Some electricity provider have a dedicate app that can control the best time of the night for charging your car (and give price reduction)... but currently evcc would stop any unexpected charging (AFAIK).

So I think this would need an 5th option in addition to Off / Solar / Min+Solar / Fast.
And maybe a way to schedule things so that it goes to that 5th state during the night.