Roof top solar with carry out solar, how to connect

[cvretis]

I have 2 x 100 W solar on the roof and a 100 W carry out panel. What are the suggestions for wiring these into the Renogy Rover controller 40A? The roof panels are connected in series since they might be in shade some of the time.

Do I need 2 switches and fuses, or can they be combined?

We will be going to Alaska in May 2022 for 4+ months. Most nights will be boon-docking.

I was going to add more solar up top, but we traded in the 10 month old Expedition ( great power, but the CCD suspension fought with the weight distributing hitch ). Got an F150 PowerBoost with the 7.2 Kw power station.

[Country Campers]

If the mobile solar panel has a charge controller already on it you could just wire direct to the battery or connect to the exterior solar port, if your Rv has that.

Brian

[cvretis]

If the mobile solar panel has a charge controller already on it you could just wire direct to the battery or connect to the exterior solar port, if your Rv has that.

Brian

No, the carry out DOES NOT have it's own controller.

[ncitro]

No, the carry out DOES NOT have it's own controller.

I am not familiar with that particular controller, but generally you would be paralleling the carryout with the rooftop panels. When doing that you want them to be the same size and capacity, but if you are putting two in series on the roof, then that array is going to have a higher voltage than the carryout will. I would suggest paralleling the roof panels so the voltage is the same on all three. Then just give yourself some kind of disconnect to hook the carryout to. Maybe a small Andersen connector? Just put the wires going to the connector on the terminal with the ones coming down from the roof and plug and unplug the carryout as needed. When connected the controller will be fed with the additional wattage and current the carryout provides, and when not it would just run off the roof, less wattage but the same voltage.

[DarnDave]

Here's another option for connection: https://www.amazon.com/CERRXIAN-Weat...7TB7XH2H&psc=1. Pulling that up opens up a whole lot of choices for installing low voltage stuff.

[Scott'n'Wendy]

Ya, agree with Neil, getting both solar sources to provide the same voltage would be key.