Energy balance mismatch

DIY
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1

Hi everyone,
My setup is

  • 3 phase
  • 3 x MultiPlus-II 48/5000/70-50
  • 2 x AC inverted connected to phases L2 and L3
  • 2 x AC PV power measured with VM-3P75CT
  • 2 x US5000 from Pylontech
  • Grid measured with P1 meter from Home Wizard
  • EVCS connected but not the case for now

The issue I have is that energy balance does not sum up.
With EVCS running it is getting worse but I would like to focus on setup with EV charging since I was able to record such situation.

Belgium, around 2pm.
Calculated consumption is assigned to single phase only (happens often, not able to measure it with 2nd meter but looks suspicious to me)

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I see that I produce on L2 and L3 but gives to grid on L1 and L2, could that interrupt internal calculations?

2

Is your grid 3x230V without N or 3x230/400V with N?

4

Can’t build systems without a Neutral.

5

@chrigu it is 3x230/400 with N

6

Theres been a few threads lately from people using victron systems in 3x230V delta grid without N and then running into control issues. Im aware that its not supported by victron, thats why i asked about the grid form

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