No other state operates its own grid, this is a unique "feature" of Texas trying to avoid federal energy regulation in the 70s. The US (minus Texas) is split i

No other state operates its own grid, this is a unique "feature" of Texas trying to avoid federal energy regulation in the 70s. The US (minus Texas) is split in to an Eastern and Western grid, so that a single doomsday event can't knock the entire country offline.