Forum Discussion
rich85704
Mar 10, 2018Explorer
OP again, here:
Folks, I'm getting closer. I'm grateful for the info and your patience with a noob.
I'm going with 2 100W panels, each with Voc of about 20 VDC. I intend to run these in parallel, outside of the rig, to optimize solar exposure, and run a cable from the panels to the controller, which will be mounted in the rig, as close to the 12V dep-cycle batteries as possible. My original idea was that this would require an MPPT controller. But after talking and reading, it seems like that was wrong. The panels would be electrically identical. So am I now right that I can use a PWM controller? The one I'm considering right now is a 30A Renogy Adventurer; the manual says that the combined Voc of the panels should not exceed 50 VDC.
It looks like I'd be OK unless I decided to add a third panel, which would take the Voc over the max. That's not in the picture right now.
Given all this, is there a reason to go with a more expensive MPPT controller?
Is there some other factor I'm not taking into account?
Thanks, again. Happy Saturday!
Rich
Folks, I'm getting closer. I'm grateful for the info and your patience with a noob.
I'm going with 2 100W panels, each with Voc of about 20 VDC. I intend to run these in parallel, outside of the rig, to optimize solar exposure, and run a cable from the panels to the controller, which will be mounted in the rig, as close to the 12V dep-cycle batteries as possible. My original idea was that this would require an MPPT controller. But after talking and reading, it seems like that was wrong. The panels would be electrically identical. So am I now right that I can use a PWM controller? The one I'm considering right now is a 30A Renogy Adventurer; the manual says that the combined Voc of the panels should not exceed 50 VDC.
It looks like I'd be OK unless I decided to add a third panel, which would take the Voc over the max. That's not in the picture right now.
Given all this, is there a reason to go with a more expensive MPPT controller?
Is there some other factor I'm not taking into account?
Thanks, again. Happy Saturday!
Rich
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