2024 TAB 320-S Black Canyon Factory Solar: Best Yield and Configuration?

bobctwin

All 2024-2026 320-S Black Canyon owners:
What is the maximum solar output (Watts) that you have seen for your 320-S Black Canyon (assuming a State Of Charge (SOC) required bulk charging from your MPPT controller)?
For those that are not familiar with the 2024+ 320-S Black Canyon, the model has the two 190W panels positioned on the left and right sides of the curved roof. The flexible panels stretch from the front just above the gally window over the curved roof to just above the bottom roof rack cross bar.

On a recent trip through the national parks of southern Utah, March 14th through the 21st, with consistent bright sunshine, no shade, >3000ft of elevation, maximum temperatures of 75 degrees, my Victron Cerbo GX recorded a single maximum solar yield of 157W. See the attached Solar yield and associated SOC graphs.

I'm concerned that these long 190W panels, curved over the roof, suffer too much partial shade during the day and as a result, yield less than half of their combined rated power.
If anyone knows the specifications of these panels and how NuCamp connected them, please let us know.

I'm not sure how these two panels are configured but the Victron MPPT controller reports an open circuit voltage (Voc) of about 42 Volts. Since a typical 200W panel has a Voc of 21-24V, I assume that the two 190W panels are connected in series to yield 42V.

Should NuCamp change the Black Canyon solar design to a Dual 200W panel configuration (one on the front slope and one on the rear slope) wired in parallel to compensate for front to back shadowing?

Or is a Voc of 21V, in this proposed configuratton, less efficient for the 12V MPPT controller?