> First, Texas has its own independent grid as a matter of physics.
Except that every state directly north of Texas is either on the East or West interconnects. ERCOT having its own grid is solely a matter of political desire.
> One top of that reduced capacity, not all equipment is prepared for ice storms because it doesn't really happen here.
Except a very similar event happened in 2011, and a specific set of recommendations were made by FERC to winterize power producers, and the recommendations were promptly ignored. Better discussion on reddit: https://old.reddit.com/r/Austin/comments/ll2slh/texas_failed...
> And finally, the wind farms are not handling the ice well
Yes, this is true, but this is almost insignificant. The grid is already designed to handle windless days: https://www.bloomberg.com/news/articles/2021-02-16/frozen-wi...
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://en.wikipedia.org/wiki/IPS/UPS#Interconnections_with_...
You just need to be in sync with whatever the phase is in your local grid. For a real world example: https://en.wikipedia.org/wiki/IPS/UPS