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Albert de Jongh avatar image
Albert de Jongh asked

Strange behaviour with ESS, Keep batteries charged - MPPT goes to zero watts, starts discharging batteries

Strange behaviour here - happened once yesterday, and just now again:

  • The MPPT (pv yield) drops to zero watts for a few minutes.
  • Batteries are discharged; looks like power is taken from grid as well.

I have not seen this behaviour before.

ESS configured with "Keep Batteries Charged", and DVCC.


ESS
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3 Answers
Albert de Jongh avatar image
Albert de Jongh answered ·

These are the screen shots from yesterday.


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1 comment
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klim8skeptic avatar image klim8skeptic ♦ commented ·

It would be most helpful to know what "STATE" the mppt was in.

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Albert de Jongh avatar image
Albert de Jongh answered ·

I just found this: https://community.victronenergy.com/questions/46115/why-does-mppt-throttle-to-zero.html

May be related.

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kimmo-paukku avatar image
kimmo-paukku answered ·

Hi,

I have this same problem.... and it happen randomly.

Setup: Multiplus 48/5000, 2x150/35 (Ext.Control v.1.47), CCGX, ESS, 6xpylontech.


Br, Kimmo


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