Inconsistent values for M_AC_Power_A, M_AC_Power_B, M_AC_Power_C since Solaredge firmware version higher 4.20.36

[MMelzig]

Describe the bug

In my opinion, this is a bug in the Solaredge firmware. However, as I was unable to find a solution with Solaredge, it seems appropriate to provide a note for this add-on.

My setting:

• Solaredge inverter SE10K
• Meter to the grid
• Battery BYD LVS 8.0

Assuming that the inverter outputs its power equally distributed on the three phases, I was able to calculate the house consumption per phase via

haus_verbrauch_power_x: |-
  {{   states('sensor.solaredge_i1_ac_power') | float(0) / 3
     - states('sensor.solaredge_i1_m1_ac_power_x') | float(0) }}

This was working pretty fine.

With a firmware update higher than 4.20.36, this calculation no longer worked. It now seemed that the inverter outputs the power more fitting for each phase. This means that now, for example, if the house is powered from the battery, the power per phase from the grid is approximately zero. However, the inverter currents, which could also be used to determine the phase power, are still approximately the same.

This means the data are no longer consistent.

I assume that the Solaredge firmware is outputting incorrect values for M_AC_POWER_A .. _C. Unfortunately, I was unable to clarify this with the support team and had got a downgrade to the old firmware version 4.20.36. And Solaredge has confirmed to me that even in the new firmware versions, the inverter power is distributed equally on the three phases.

For me, the use of firmware version 4.20.36 is sufficient for now, but the topic should be generally known here.

Expected behavior

Clarify whether it is possibly an issue for this add-on after all.

Or if you have a better contact to Solaredge, clarify what has changed in the Solaredge firmware

Screenshots

No response

Diagnostic File

No file available

Debug logs

Home Assistant Version

2024.12.5

solaredge-modbus-multi Version

3.0.6

Installation Type

HAOS

Read the Instructions

• My configuration follows https://github.com/WillCodeForCats/solaredge-modbus-multi/wiki/Configuration
• I have read the Known Issues https://github.com/WillCodeForCats/solaredge-modbus-multi/wiki/Known-Issues
• This issue is not about a template error (do not report template errors, read https://github.com/WillCodeForCats/solaredge-modbus-multi/wiki/Template-Design-Notes)

Additional Context

No response