It runs a 4cf freezer with a spillover into a 6cf fridge. Our energy use is ~50-60Ahr/day. The compressor averages 5.5 amps, and ours runs 10hrs/day in the deep tropics.
If it was only a 6cf fridge (approximately 200qts), then I would expect less power used.
The key, of course, is insulation. If you don't have enough, you will use a lot of power.
Mark