

Things like that can definitely be accomodated. A famous example is how the UK would keep pumped storage hydro power ready for moments like half time in major football games or breaks in popular TV shows, because the entire country would pretty much simultaneously put their kettles on
Charging a car is a much bigger draw than powering a kettle, obviously, but the point is that these things tend to be reasonably predictable and we are able to ccount for them if we know they are coming
“Cats Living Together”