I think it's more like doing the wave at a large sports stadium.
Everyone isn't always in phase with every other station's phase at that exact moment in time. They're just in phase with their local part of the grid's phase. Though amount that is different is milliseconds, not seconds as in the stadium wave example.
Everyone isn't always in phase with every other station's phase at that exact moment in time. They're just in phase with their local part of the grid's phase. Though amount that is different is milliseconds, not seconds as in the stadium wave example.
This mostly came from reading this: https://electronics.stackexchange.com/a/291328