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ssoler asked

system ESS & parallel : Excessive consumption of the electrical network

In an ESS system, is there an explanation in the algorithms that justifies that when charging the battery from the solar panels, it takes more energy from the electrical network when we are in a parallel model than when it is just an inverter? as well as 10 times more, is this normal? or it may be a consequence of a bad configuration, a firmware update. ( configured with optimization with batterylife )

ESSmultiplus in parallel
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mvas avatar image mvas commented ·
Can you post the VRM images showing the two different scenarios?
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3 Answers
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ssoler answered ·


a) Mode Standalone: In the example, the power of the electrical network fluctuates between negative values and 50w max (normaly). Firmware multiplus II 5.02

standalone.jpg

b) Mode parallel: In the example, the power of the electrical network fluctuates between 280w and 450w (more or less) Firmware multiplus II 5.05 (both master and slave of course)



parallel.jpg


In both cases the configuration is the same standalone / parallel and the same with BatteryLife/ without BatteryLife. Cerbo GX: Firmaware in standalone 2.93 / Firmware in parallel 3.00

1689068810881.png


1689068653955.png

1689068703592.png


This is the consumption of the electrical network (in the load from fronius)

1690327816357.png



Fronius:

1690327929333.png


1689068653955.png (30.2 KiB)
1689068703592.png (18.1 KiB)
1689068810881.png (28.6 KiB)
standalone.jpg (99.6 KiB)
parallel.jpg (107.6 KiB)
1690327816357.png (19.6 KiB)
1690327929333.png (11.9 KiB)
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ssoler avatar image
ssoler answered ·

I have updated to version 3.01 Venus OS on the Cerbo GX, and the same problem persists

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ssoler answered ·

To try and rule out that it is the Venus OS 3.00/3.01 version, it would be compatible to go back and reinstall a previous version, for example the Venus OS 2.94 version.

Would it be compatible with multiplus II 5.05 versions?

and with the latest version of mk3, installed on the cerbo GX Venus OS (which was recently installed)?

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