Also on a side note (moved this to a separate post) for your overhaul system it would make more sense if all electrical producing entities produced high voltage as default, but i am using power overload and turned off the overhaul so it doesn't really matter to me. But if it is realism you are trying to accomplish.
But i understand that because high voltage in your overhaul has no coverage they would not be able to "collect" the power. But it feels wierd for me that are used to work on real electrical grids.