Why does Texas have its own power grid?

Why does Texas have its own electric grid? Texas’ secessionist inclinations have at least one modern outlet: the electric grid. There are three grids in the Lower 48 states: the Eastern Interconnection, the Western Interconnection — and Texas. The Texas grid is called ERCOT, and it is run by an agency of the same name — the Electric Reliability Council of Texas. ERCOT does not actually cover…

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