I've installed an electricity meter 2 weeks ago, and the lowest it got was 4,8 kWh/day in a 2-person Croatian household, although I do have a small Synology NAS running 24/7 and we have a TV on for a couple of hours.
But we heat the house on gas, and last december we burned about 180 m3 of it. Now, during summer, (in the Netherlands) we don't need heating or air-conditioning.
We heat and cook using natural gas.
The biggest consumer are the same here. Dishwasher and laundry.
All that stuff gives one great insights into what a kWh is (how much energy), where you use the most energy etc. I love it.
[0]: https://www.home-assistant.io/blog/2021/08/04/home-energy-ma...
[1]: https://www.zuidwijk.com/product/slimmelezer/
[2]: https://shelly.cloud/products/shelly-plug-s-smart-home-autom...
With all major appliances off (except the fridge/freezer) I consume ~0,13 kW/h, that adds up to 3,36 kWh in 24 hours.
Easy, live in a house 4x the size of a 2-person Dutch household and in a climate that averages 10 degrees C warmer, like would be common in the southeast US.