I have an off grid house on a mountain.
Its about 25 Km from work, and I spend there 6-9 months of the year.
I have a small solar panel installation 420Wp (+ 1200VA inverter), which is enough for lights, fridge, TV, laptop, etc.
In the kitchen I use gas, and a solar water heater for bath.
In the cold days a fire place (woods from tree pruning around the house) is perfect.
The only bill I'm paying is for water. (in this area is once a year, last year I've payed about 50 Euros).
That's all.
You don't need 10KW solar panels, if you make a good plan for your needs.