A Cup of the Sun

The Cup in the Sun

There's 2,700 watts of photovoltaic wonderfulness on the roof!

We’re not much into “boondocking” so we designed the system to maximize the available power while driving or “lot-docking” (extended rest stops for lunch or sightseeing), knowing that we will most likely spend the night in an RV park with full hookups.

2700 watts of solar panels installed on a 36 foot Newmar Dutch Star

The System

  • Victron solar components4 Battle Born 100Ah 12V LiFePO4 Batteries (wired in 1 group with cut-off)
  • Victron Multi-Plus II Inverter 12/3000/120-50 2x120V
  • Victron Smart Solar MPPT Charge Controller 150/100
  • Victron Smart Solar MPPT Charge Controller 150/70
  • Victron Smart Shunt (battery monitoring)
  • Victron Lynx Distributor
  • Victron Cerbo GX
  • Victron Touch 50 Display
  • Victron Orion DC/DC Charger (30 amp)
  • 4 360-Watt Newpowa Solar Panels
  • 6 210-Watt Newpowa Solar Panels
  • Breakers, Fuses, Cutoff Switches, etc.

More photos

Updates and Improvements

As we expected, a significant amount of heat is generated by the inverter and, to a lesser extent, the solar controllers when the system is in the sun and under a load. We installed a CoolerGuys fan kit to pipe the hot air through the floor and out of the cabin.

The Installer

The Cup’s solar system was installed by Derek Green of Cross Country RV Tech and Solar of Alpena, Michigan. Derek is an NRVTA-certified RV technician who will come to you for service and installation. We traveled to Derek’s home base in Michigan where he was able to complete the installation within six weeks of our first contact.

Derek published a short video about the installation on his Youtube channel.

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