I don’t get why this isn’t commonplace globally. Water boilers can easily maintain temp for 24hrs plus. Sure you don’t want the energy provider to mess with i

I don’t get why this isn’t commonplace globally. Water boilers can easily maintain temp for 24hrs plus. Sure you don’t want the energy provider to mess with it too much but switching that off in the crucial peak each day say 2 hrs a day is a huge win for the grid without real inconvenience for the user