https://www.texastribune.org/2011/02/08/texplainer-why-does-...
They didn't have to be that isolated until the feds clamped down.
And ERCOT's only been going since 1970.
Could just be a matter of political "leadership" whether the feds are a riskier bureaucracy or the Austin-based boneheads.
https://www.texastribune.org/2011/02/08/texplainer-why-does-...