Whinny
Solar Enthusiast
- Joined
- Dec 24, 2020
- Messages
- 399
22 foot trailer with not much roof space....
The physical work is done, I was able to shoehorn a 315 watt panel onto the old mounts that held my two older 100w panels. I'm going to be placing the 100w panels in a different location, in front of the A/C. Would I be better off using 2 controllers or putting the 100w in series and parallel them with the 315. I did the math (correctly I hope) but would appreciate thoughts on it....
315 watt...VMP 33.7
IMP 9.36
VOC 40.6
ISC 9.94
100 watt x 2 in series....VMP....36
IMP.....5.55
VOC 43.2
ISC 6.11
Panels are mounted flat, I get 376 watts versus 386 watts after the 75% correction, would I be better off with a 30a or 40a controller?
**edited for formatting**
The physical work is done, I was able to shoehorn a 315 watt panel onto the old mounts that held my two older 100w panels. I'm going to be placing the 100w panels in a different location, in front of the A/C. Would I be better off using 2 controllers or putting the 100w in series and parallel them with the 315. I did the math (correctly I hope) but would appreciate thoughts on it....
315 watt...VMP 33.7
IMP 9.36
VOC 40.6
ISC 9.94
100 watt x 2 in series....VMP....36
IMP.....5.55
VOC 43.2
ISC 6.11
Panels are mounted flat, I get 376 watts versus 386 watts after the 75% correction, would I be better off with a 30a or 40a controller?
**edited for formatting**
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