Are 4 pannels (405wp) enough for growatt SPF 5000 ES

Parameters AT STC​

sunshine_eggo said:

The unit requires 150±10V to start. I would assume 160V is needed. 4S will fall short.

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haselbay said:

thanks, so I have to add one more panel?

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Steve Fractals said:

So does this mean even if the inverter is started up with either DC batts or AC-in that it still won't collect and invert the solar energy unless the panels are sending 160V?

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haselbay said:

can you please tell me what is the maximum panels I can connect is serie? 12 ?

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haselbay said:

Hello, I'm new to the solar systems..

Maybe I stupid question.

I'm planning to use 4 pannels + Growatt SPF 5000 ES + SOK battery 48V 100A

JA Solar mono

Parameters AT STC​

Pmax 405V
Vos 37,23V
Vmp 31,21V

Are 4 pannels (405wp) enough for growatt SPF 5000 ES to work? Maybe I will add more later, but are 4 pannels enough to start?
Or does Growatt SPF 5000 ES require more to proper work?

According to Growatt datasheet
MPPT Range @ Operating Voltage 120VDC ~ 430VDC

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wilsonb100 said:

I ran Growatt SPF 5000 ES (screw removed and well insulated) with 4 cheapo 325-watt panels and it worked just fine with about 75 feet of #10 gauge stranded copper wire and insulated of course.
Top it off I live in Canada. Being power greedy I upgraded to 4 470 watt 78 cell - Bifacial panels. If you have the space (I do not) go with the 5 panels for the extra boost. Otherwise, 4 panels will work just fine. Be careful of the high voltage even on the (-) line to earth ground when all connected.

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