2023 Reflection 303RLS Additional Solar Panel Installation

[tbwilliams]

Since we bought our Reflection in late September I’ve been working on upgrading the electrical system with Lithium batteries and Victron Inverter, Solar Controller and SmartShunt. That thread can be found in the Electrical Sub-Forum at https://gdrvowners.com/forum/operati...de-2023-303rls. On our recent trip to Tucson I stopped at Santan Solar in Gilbert, AZ and was able to pick up a new LG 370W panel for $131. The MPP voltage is within 1.3 volts of the existing Furrion 370W panel and the MPP current is within 0.39 amps. Doing the math, I end up with 729W out of a theoretical 740W, a 1.5% difference, close enough. Had a friend come over this morning and help me get the panel up on roof. Wired the new panel in series with the existing panel, pulled the covers off the panels, turned on the disconnect and everything worked as expected. I’ll see how this works out, and if needed, have space to add at least two more 200W panels. If additional panels are installed I’ll run them through a separate solar controller, the existing one is maxed out. Here are some pics of the finished installation:

[TucsonJim]

Nicely done. And great job on the calculations to show the two panels can share the controller. It looks like you taped down the wires to keep them from flopping. Eternabond Tape?

Jim

[tbwilliams]

Nicely done. And great job on the calculations to show the two panels can share the controller. It looks like you taped down the wires to keep them from flopping. Eternabond Tape?

Jim

Yep, 1-1/2” x 4” strips