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Solar panel question
#1
So i have 9 

Mission 320w solar mono panels without frames.

Specifications:

Rated Power: 320W
Open circuit voltage (VOC): 46.7 V
Max power voltage (VMP): 37.8 V
Short circuit current (ISC): 9.15 A
Max power current:  8.52 A
Maximum system voltage: 1000V
Fuse Rating: 15 A
Weight: 50 lbs
Dimensions: 1970mm x 990mm x 5mm

I am looking at adding these ( i dont know if i can )



Can these be added in series to those?
I try... Sometimes i fail.... ok most times. lol

www.youtube.com/user/MasterYodaJames
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#2
Yes but you lose 60% of the output of the larger panels and your inverter/charger need to be able to handle the larger current.

And they dont fit in parallel either due to voltage. I suggest 1 MPP for each type instead. You save energy and headache in the long run!
Crimp Daddy likes this post
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#3
Why would i lose 60%? Just asking so i will understand it more... The sunny boy will handle it
I try... Sometimes i fail.... ok most times. lol

www.youtube.com/user/MasterYodaJames
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#4
The output of panels in series is capped by the panel with the lowest output.
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#5
You didn't specify how you're hooking all these panels up, in series or parallel or a combination of both. That will dictate more if they can work together or not. Your image shows a much higher open circuit voltage than the 320watt panels, that is more of a concern than the actual wattage. As others have said though, it's probably much easier to have the different types of panels on separate charge controllers.
Solexx X likes this post
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#6
It's the wide difference in current that's the issue.
If the Imp's were close, you could put them in series. You might burn out the bypass diodes in the "STION" panels if you tried this due to the other ones high current.
If the Vmp's were similar you could put them in parallel.
But like said above, they're quite different types of panels so 2x separate strings into 2x separate MPPT's would work best.
Solexx X likes this post
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#7
Can i run all three in parallel and then series it into the main array? That should get the imp's close. And will help with the extra volts needed to start the sunny boy quicker. I am barely starting the sunny boy in full sun with the 365volts needed.
I try... Sometimes i fail.... ok most times. lol

www.youtube.com/user/MasterYodaJames
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#8
Or you could get a few cheap solar charge controllers and use one for each panel or set of matching panels. Then feed into a boost converter if need be and dump into your main battery lines. (at least, I think this would work. Curious if it would)
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#9
Korishan... I am running on grid right now.. The off grid is coming

Just trying to help get the volts up for the sunnyboy.. Its almost 12 noon before it kicks on. It runs around 350volts from 6:30 ish till noon
I try... Sometimes i fail.... ok most times. lol

www.youtube.com/user/MasterYodaJames
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#10
Can i run all three in parallel and then series it into the main array? That should get the imp's close. And will help with the extra volts needed to start the sunny boy quicker. I am barely starting the sunny boy in full sun with the 365volts needed.

Can i do this???????????????????????????????????
I try... Sometimes i fail.... ok most times. lol

www.youtube.com/user/MasterYodaJames
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