Earlier quoted context omitted.
I know it's kWh. EE, so I get it. Don't know where you live but "a few hundred Watts" would only power my computers. I keep a couple of deep cycle 12V batteries fully charged in the garage. We typically use them as power sources for chargin LiPo's for electric model aircraft at the field or to power the glider launch winch. A nice side effect is that the are available for emergency power if ever needed. I still have…
The refrigerator seems like the only real substantial load. I looked that up, and while it'll draw over 1kW when starting, the continuous load is something like 200W for a modern one. Nothing else is in my house is going to approach that. I'm not going to be running desktop computers during an extended outage, and laptops will add a negligible impact. In colder weather I'd want enough power to run the gas furnace, wh…
:)