We tend to use between 3kWh (vacation/idle power consumption) and around 8kWh per day. If we switched to electric stove, water heater, and heat pump, and add a hot tub, that'd increase substantially. But if we added solar (on our long Todo list...), the battery in the article (60kWh) would probably be able to handle all our storage needs, and it'd fit in he garage (bonus of it can be placed outside/under a deck!). I live in a major city, but I would absolutely love to effectively be off grid.
Exciting stuff
it seems these are touted as being extremely robust/safe, which is of course important for me if it's going to be in/near our house. Storage density not a huge concern, but price is somewhat important
let's hope this sort of thing ticks all the boxes.