How is this for a power system? Solar vs battery balance?

Geewizard wrote:
I have 220W of solar and it's a Tundra T42 refrigerator. In use since about 2007.

http://www.marinespecialists.com/Tundra/frige.html

Yes and the OP's Novacool RFS7501 fridge is almost twice the size. Not that it will use twice the power but still need a bit more and 9% less solar.

I would still plan on going a few more watts. Maybe some portables to tilt to the sun in winter. Max out a TC is not really a huge system. The lithium batteries will harvest more power from solar.