Is it possible to remove the visible connection (red arrow)? The solar power never goes directly into the grid but always via the storage system!
Not sure if it’s the same for this card, but in the custom:tesla-style-solar-power-card there is a hide_inactive_lines: setting.
Yup, there’s a setting in the ‘Advanced Options’ called ‘Display Zero Lines’ and in the YAML it looks like this:
display_zero_lines:
mode: hide
But:
It’s dynamic, i.e. it seems to hide ALL lines that are currently 0, i.e. if you PV is not producing anything, it will hide all the lines from it.
Thank you. I had already found that. But when the sun shines again tomorrow, the connection will be there again and deliver incorrect data again.
Hmmm - reading your post again, I’m getting even more confused 
- The red arrow does not point to the PV - Grid connection which seems to be the one you want removed and your last image shows that all connections from the solar installation are gone once there’s no power production
- Why would the power not go to the grid directly once the battery/storage system is fully charged?
Sorry for the confusion. I have connected the solar modules to my battery, and I use the battery to control whether or not electricity goes into the house. The electricity from the battery goes into the house, or if too much is supplied, into the grid. Electricity also flows from the grid into the house. I hope it’s easier to understand now.
Am I really the only one who has connected their solar modules directly to a battery storage system and wants to manage everything in the Home Assistant?
I have something similar but I do not export to the grid. My battery system either consumes from both grid & solar when below 40% (reserve level) or ONLY solar when above 40%. Also, my devices NEVER consume directly from GRID, only from inverter/battery system.
I believe that this purple line is for Battery → Grid, but I need Grid → Battery
Also, the blue line from Grid to House is never seen (I have it set to hidden) but had to SHOW all so that you would see the blue line.
The built in sensors on my inverter/battery setup have a TOTAL input along with PV input. I have a custom sensor that calculates AC Input. I think the most straight forward way to handle this would be to have multiple entities for “production” on the Battery. One for “Solar” and one for “Grid”.