In a sense, I have a small battery at home that I “could’ run a lamp off of for a few hours - the UPS for my computer. I just replaced the batteries in it, and what’s in there is basically 2 motorcycle/lawn tractor sized 12 volt batteries in series, that slide into the case.
They’re not lithium, they’re non-liquid lead acid cells, which are actually pretty good. The old ones were over 4 years old and probably wouldn’t carry a load for very long.
The UPS route is rather expensive in terms of dollars per watt-hour, but it serves its purpose.
I also have a small 3 kw gas-fired generator out in the garage (which I need to run, but I have to get some gas for it first). It would hold me over for several hours, and if there were a gas station in the region, I have 3 5-gallon jerrycans that I could fill and go for days. I also have a gas fireplace, and I have a small propane “ventless” heater and 3 or 4 tanks of propane I can use for heat in an emergency.
Plus candles, oil lamps, and a 12 volt battery with a solar panel that might charge it if I can get sufficient sun. That would be more useful, I think, for keeping the electronics charged.
A nice, reasonably small battery/solar system would be nice though, if not too terribly expensive. Being able to run the furnace blower would be a great asset. As long as there’s natural gas available.
Your new digs sound wonderful! So self sufficient!