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daren-connor avatar image
daren-connor asked

How to configure PV assistant (3 phase)

What is the total solar power in a 3 phase system with 3 x 48/5000/70 fed by a Fronius Symo 15kw PV inverte being fed by 18kw of solar panels. I need to get my PV solar inverter support assistant set correctly. Thanks for any help anyone can provide...

Multiplus-IIsolarFroniusAssistants
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2 |3000

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daren-connor avatar image daren-connor commented ·

Should the figure be 4000w, 15000w or 18000w For Total Solar power in PV inverter support assistant? Does anyone know?

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Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

you use the total power, and both figures:



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2 |3000

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daren-connor avatar image daren-connor commented ·

So based on the information of my system 15000 and 18000 are the figures that I would use?

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daren-connor avatar image daren-connor commented ·

Hi, I have done exactly what has been advised. I updated the firmware & set the PV inverter support assistant as advised but the system is ramping down at to 10500w & won't go above. Do you have any suggestions that may fix it. The system will ramp down Fronius to 10500 even while batteries are at 60% & the house is using 3000w so the charge going into the batteries is reduced instead of Fronius being ramped up to compensate. I just can't get the system to use all the solar I have. When I fire up the generator, the system will use 10kw continuously to charge the batteries then ramps the generator up to meet the house demand. I have as much solar power as I have generator power but the system just won't use the solar. What settings could be wrong to cause this major inefficiency? Thanks for any help you could provide.

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