And more, Texas has it's own power grid.Not all, and there are a couple of "tie-lines" between the 'island' portion that is independent from the other two main 'grids' (east and west) to the eastern grid ...
A portion of the far eastern part of the state *is* connected to the 'eastern' grid.
I knew there were a few "Islands of Un Civilation" but most of the state is ERCOT, as is my area.
Appreciate the correction.