Two ESS systems working together

[NEOTCO]

@owenb79

I have 2 ESS working fine. They are both AC-coupled to the grid with AC-coupled solar. If you want to use the other input you can use it on and try the generating settings. There are so many generator controls, especially with the ESS installed. I have a 48V 5000 36kwh ESS and a 12V 1200 ESS in the shed with about a 10kwh battery. The only problem I found was the 12v or the 48v would charge from each other in certain situations overnight. This was solved by setting the DVCC to 0 overnight using node-red. Also charging using solar and the internal charger on the 12V needed tweaking to prioritise solar. This is what my flows look like. You are unlimited in how you want to configure it.

May i ask you how you wired the two systems, maybe you can help me if you look here:

How to combine 2 3P Victron Systems without Grid

Ah i see missed that, but as i already said, no you cant feedback to ac in Let the small system feed to “grid” in your case this is the ac out on the big system the smaller is connected to So connected like this 8kw ac out 2 > 3kw ac in, thats all, alltough i dint know if the dont know the multiplus 1 one can feedback to on ac in