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Growatt SPH5000 low light behaviour

Jason_R

New Member
Joined
Oct 25, 2022
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2
Hi,
I've raised an issue with Growatt support regarding unexpected behaviour under low light conditions. The issue presents itself as the system requiring almost full grid support during the am/pm low light conditions when a step change in load occurs(kettle etc. below 3kw), despite battery SOC >90%
Further noticed this behaviour can be prevented by isolating the PV prior to loading the system.
My main concern is the condition can persist, in some cases in excess of 30 minutes.
Not yet had a response from growatt technical.
Wondered if anyone else has experienced this?
 
Hi, I have a Growatt SPH3000 and have exactly the same issue.
My firmware version is RAAA219806.
Which Version do you have?
 

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