I’ve been off-grid 10 years and have also migrated away from the propane refrigerators!
I wrote up a series on refrigerator tips you may want to read:
Recently I purchased a Kill-a-watt power meter, and just today began measuring the real world power consumption of our unit. Will be updating the article soon. For the 6 hours I tested today it looks like an average of 25-30 Watt-Hour! More details soon.
Thank you kindly,