v8.54.2 Power Flow Diagram

[AberDino]

Over the weekend I added a car_charging_power sensor to my Predbat apps.yaml file, so I can see it in the Predbat power flow diagram.

I have a couple of questions / observations:

1. My car_charging_power sensor reports a negative value when charging the car. I think that's OK, because the arrow is pointing the right way (power flow to the car), but can somebody please confirm that is indeed correct? If not, I can invert the value for use in Predbat.
2. In the diagram, the power flow to the car comes off the grid icon, but I think it should come from the house icon, because the grid power flow report the total power value to the home, including the car charging power. Is this a bug, or do others see the car charging power coming off the house icon?

[gcoan]

Question 2 is covered in the Dashboard documentation https://springfall2008.github.io/batpred/web-interface/#dash-view

Question 1 its up to you, the car charging power is display only https://springfall2008.github.io/batpred/car-charging/#filtering-car-charging-energy-from-house-load

[AberDino]

Thanks @gcoan,

Regarding question 2, apologies, I somehow missed the latest dashboard documentation update.

I did think it might be related to whether the EVC comes off the house load or not. As I have a GivEnergy Gateway, my house load does not include the EVC. However, by definition, grid power does include everything, so even though the EVC does not come off the house load, I think it would still be more correct to show the EVC power coming off the house icon rather than the grid icon (the diagram as shown above would suggest 13,481W + 6,700W being drawn from the grid, which is not the case). This would then also work if the car is charged from excess solar. In my case, the house icon would effectively be the Gateway with the house load shown on top.

This is just my opinion of course, and as it's a visualisation only, I cannot get too excited about it.