The way the pallet numbers worked out, I ended up with 13 Sunpower 435W panels, and I need to figure out how to wire this odd number of panels. Here are the panel specs.
Model: SPR-E20-435-COM
Nominal Power: 435 W
Power Tolerance: +5/−3%
Avg. Panel Efficiency: 20.3%
Rated Voltage (Vmpp) 72.9 V
Rated Current (Impp) 5.97 A
Open-Circuit Voltage (Voc) 85.6 V
Short-Circuit Current (Isc) 6.43 A
Max. System Voltage 1500 V UL & 1000 V IEC
Maximum Series Fuse 15 A
Power Temp Coef. −0.35% / o C
Voltage Temp Coef. −235.5 mV / o C
Current Temp Coef. 2.6 mA / o C
My Growatt 5000ES has a max PV input voltage of 450V and max PV amperage input of 100A, so I have plenty of head room to work with.
I assume the common way to wire this for 12 panels would be in 3 paralleled sets of 4 panels in series (85.6V x 4), for a max PV input voltage of 342.4V. My question is how to wire/add the 13th panel?
Thanks in advance.
Model: SPR-E20-435-COM
Nominal Power: 435 W
Power Tolerance: +5/−3%
Avg. Panel Efficiency: 20.3%
Rated Voltage (Vmpp) 72.9 V
Rated Current (Impp) 5.97 A
Open-Circuit Voltage (Voc) 85.6 V
Short-Circuit Current (Isc) 6.43 A
Max. System Voltage 1500 V UL & 1000 V IEC
Maximum Series Fuse 15 A
Power Temp Coef. −0.35% / o C
Voltage Temp Coef. −235.5 mV / o C
Current Temp Coef. 2.6 mA / o C
My Growatt 5000ES has a max PV input voltage of 450V and max PV amperage input of 100A, so I have plenty of head room to work with.
I assume the common way to wire this for 12 panels would be in 3 paralleled sets of 4 panels in series (85.6V x 4), for a max PV input voltage of 342.4V. My question is how to wire/add the 13th panel?
Thanks in advance.