I've arrived at DD's prep school to find them sitting on window sills for daylight because the electricity has gone off again. They were told not to flush the loo unless necessary and rationed water at lunchtime and ate off paper plates for a week as water supply poor. I wondered why she was so thirsty when she got home.
Assuming you are paying no small amount for your DD's education, do you not feel a bit short-changed by this?
If it happened in a state school there would be, not unreasonably, parents and their children doing full sad-face in the local paper.