+1 on turning the fridge off at night.... we found that really helps.
We added 4 100W solar panels... and added a few extra batteries (5 total house batteries- in one of the external storage compartments on our 31W, currently 12 volt series 27 batteries but they'll be 6 volt in a year or two when time to replace.
With those two additions, we can go pretty close to generator-less for 2-3 days during the summer in a campsite with good sun on the panels.
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