[mbesto]

4 bedroom house in Austin, TX. A hot summer is around 100 kWh and my Rivian battery is 135 kWh. Which means I can roughly get a one full summer day out of my car's battery (assuming I still need to drive the car and usually leave it at 70% max).

So there you have it, I get about one full day. Not "days on end".

[tzs]

On the other hand here in Washington a little west of Seattle with a 3 bedroom all electric house I use about 40 kWh a day in the coldest month of winter and 8-10 kWh a day in summer.

[megaman821]

You could get something like a Span electrical panel and only enable critical loads during a blackout and set the AC a little higher than normal. Even a large house can go down to 20-30 kWh a day.

[qwerpy]

That's on the higher end of household usage. On the lower end, during a cold windstorm in the PNW I was able to get it down to 600W (15 kWh/day) because I have mostly natural gas appliances. My Cybertruck kept us going for nearly a week with just one top-up (because I don't like to go above 80% or below 20%). We deferred using the dryer and dishwasher, and relied on the fireplace for warmth instead of the HVAC.

On a hot day yeah I'd be running the A/C but ideally you'd have solar to offset much of that.