Multiplus with ESS: charge and passthrought during night, invert during day HELP!

DIY
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Hi! I am struggling to configure my victron system (3phase) to charge batteries during night and keep them charged while powering loads from grid (passthrough), and during day to not use grid but power loads from battery. I don’t have PV installed yet but I have cheaper energy during the night and I want to take advantage of that. What I tried:

  1. set 100% SOC schedule in ESS for the night and for the day set 30% SOC limit with self consumption from battery enabled . During night battery charge starts as expected but as soon as I hit float charging victrons start power my loads from battery (float V lower than absorption).
  2. tried DESS. Configured everything, put the prices, set it to Green mode. The problem was that it was always powering loads from batteries even during lower energy price periods. I also saw that there were no grid consumption scheduled for DESS prediction charts. Maybe it needs more time to learn the consumption trends? Or maybe it will not work as expected without PV? Batteries were above SOC limit but that is irrelevant. I dont want to discharge the batteries in the low price peroids because it is pointless.

I assume it is a simple task to achieve using node red but maybe there is a simpler way? Thanks for your advice.

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DESS completely does not plan any usage of the grid as you can see.

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Try changing the Grid setpoint at night so loads will come from the grid, not your battery.

4

Yes but that requieres me to use node red. I want to avoid that if possible not because I personally dont know how to, but to make system more understandable for other family members so they are more aware how it works.

Also the easiest way in node red would be set the multiplus switch position to Charger only during night, this will force it to passthrought grid to loads. But I also have multi control, will it override its physical switch that is set to “ON” (inverter on)? Also as I said I want to avoid using node red if possible.

From my understanding DESS should work as I need but…it doesnt. So my main question is why?