smart Solar 100/30 connected to 600w (four 150w panels)

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spic1973 asked Feb 15, '21

smart Solar 100/30 connected to 600w (four 150w panels)

I have a smart solar 100/30 and would like to install four 150w hqst panels. Their Voc is 22.7 and Isc is 8.09. Can I connect them all in series safely? Would this be considered overpaneling?

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Answer 1 · 2021-02-15T06:01:54Z

Stefanie (Victron Energy Staff) answered · Feb 15, 2021 at 06:01 AM

Hi @Spic1973,

probably not, unless 22.7V is their rated voltage at low temperature. Borderline, thus not considered safe.

You can check that yourself using the Victron MPPT Calculator.

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Answer 2 · 2021-02-15T06:10:40Z

spic1973 answered · Feb 15, 2021 at 06:10 AM

Thanks for the feedback......could I just wire them two pairs in series and then both pairs in parallel? That should give me 45.4 volts maximum with plenty of margin to 100v and the current max at 16.8amps correct?

I apologize if this has been asked before but I’m trying to make sure that whatever I do, has the safest margins.

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Stefanie (Victron Energy Staff) ♦♦ commented · Feb 15, 2021 at 06:47 AM

Yes, wiring two in series and then parallel will absolutely work.

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