JasonAch
New Member
Hi,
I have a Growatt SPF5000ES and I currently have 8x450w Canadian solar panels.
I would like to add more panels but im struggling to find stock of Canadian solar anywhere close to me so I was wondering if I could use Jinko 415w instead as it’s the closest matching panel I could find. I understand that this is not ideal and that I will be sacrificing some of the power the panels could generate in this configuration (about 50w if im correct).
I would like to buy 4 Jinko panels to add to my 8 Canadian panels.
I would then have 2 string. Each string with 4 Canadian and 2 Jinko panels.
From my understanding in series voltage is added up and current comes from lowest panel in your string so
I would end up with an open circuit voltage of 289.94v, an optimal voltage of 237.98v and a current of 10.96a so about 2608w per string.
If I combine 2 string in parallel, I would get a voltage of 237.98v and a current of 21.92a so about 5216w total.
Would this configuration be ok? Are my calculations correct? Is the voltage difference of 41.1v vs 36.79v too large for panels in series?
= Growatt SPF5000ES (Single MPPT)
Max PV Input Current: 18a (22a with a firmware upgrade)
MPPT Voltage Range 120Vdc~430Vdc (450Vdc MAX)
Max PV Array Power: 6000w
= 450w CanadianSolar CS3W-450MS
Open Circuit: 49.1v
Opt Voltage: 41.1v
Opt Current: 10.96a
= Jinko Solar Panel Tiger N-Type 415W Mono-Facial
Open Circuit: 46.77v
Opt Voltage: 36.79v
Opt Current: 11.28a
Thanks.
I have a Growatt SPF5000ES and I currently have 8x450w Canadian solar panels.
I would like to add more panels but im struggling to find stock of Canadian solar anywhere close to me so I was wondering if I could use Jinko 415w instead as it’s the closest matching panel I could find. I understand that this is not ideal and that I will be sacrificing some of the power the panels could generate in this configuration (about 50w if im correct).
I would like to buy 4 Jinko panels to add to my 8 Canadian panels.
I would then have 2 string. Each string with 4 Canadian and 2 Jinko panels.
From my understanding in series voltage is added up and current comes from lowest panel in your string so
I would end up with an open circuit voltage of 289.94v, an optimal voltage of 237.98v and a current of 10.96a so about 2608w per string.
If I combine 2 string in parallel, I would get a voltage of 237.98v and a current of 21.92a so about 5216w total.
Would this configuration be ok? Are my calculations correct? Is the voltage difference of 41.1v vs 36.79v too large for panels in series?
= Growatt SPF5000ES (Single MPPT)
Max PV Input Current: 18a (22a with a firmware upgrade)
MPPT Voltage Range 120Vdc~430Vdc (450Vdc MAX)
Max PV Array Power: 6000w
= 450w CanadianSolar CS3W-450MS
Open Circuit: 49.1v
Opt Voltage: 41.1v
Opt Current: 10.96a
= Jinko Solar Panel Tiger N-Type 415W Mono-Facial
Open Circuit: 46.77v
Opt Voltage: 36.79v
Opt Current: 11.28a
Thanks.