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im braindead :) help with math for panels pls

Jubba

New Member
Joined
Jun 1, 2022
Messages
4
As the title says, my skills DO not extend to math, it fries my brain cell lol.
I have:
4 x 235 watt, 37.4v oc, 7.94a premium L poly panels
4 x 120 watt, 21.6v oc, 6.67a eco worthy panels
epever MPPT solar controller 40a, 1040w/24v(pv power), max pv open circuit 100v

anyone able to help with how to connect all these panels series/parallel so i can keep within the controller stats ?
ideal world i would like to use all the panels but we will see.


thank you
 
Your coldest temp is going to effect any calculation
The difference between the panels indicates using an additional SCC
wired together the Eco panels will gimp your better panels

The 37.4 Voc panels can be wired 2s2p and fed to the epever (that should cover cold temps)
The Eco panels can be wired the same (2s2p) and fed to another SCC (100/40)
or
all eco in series, 4s to a 150/ SCC
 
Your coldest temp is going to effect any calculation
The difference between the panels indicates using an additional SCC
wired together the Eco panels will gimp your better panels

The 37.4 Voc panels can be wired 2s2p and fed to the epever (that should cover cold temps)
The Eco panels can be wired the same (2s2p) and fed to another SCC (100/40)
or
all eco in series, 4s to a 150/ SCC
Thanks very much for the reply, very much appreciated.
for now then i will store the eco until funds are better and stick with your advise on the Voc panels. thanks again
 

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