Hi
I have an offgrid system already installed 3 kwp PV and one Multiplus II 48 3000 gx.
I need to use energy produced from PV during the day, and if PV is not enough i want to keep batteries fully charged from the grid just in case of black out during night. Batteries are charged by an MPPT charger not Victron.
I am trying to fix something via ess but it shows no "ess assistant found" even though i have set ESS on System Name.
Is there any clue? any idea how to set it?
Thanx in advance
Thank you @Alexandra
I have dvcc enabled but it wont work as I would like it to do so. Even though I set limit to 50 vdc, it will still continue charging and bypassing from the grid to consumption while battery is 51vdc or more.
The only thing i could do for the moment is limiting charging current to 1amp through VRM.
I think I will have to try it through mk3 adaptor.
I will post again after I try to reprogram it
Thank you
Hi @beso
ESS isn't really suited (nor supported) for offgrid use.
You could consider using the Generator Start/Stop Assistant in the Multi, but instead of a generator, set it to switch ACIN.
So you could set the Multi to charge to a Storage V of say 51V (batteries always full), but once the solar comes on and V rises to >52V, the grid will switch off completely. Depends on loads/hysteresis where you set the switch point(s), and for how long, but this should do what you want..
