This is a no-go politically, since tge entire reason ERCOT exists was because of bad experiences for Texas with tying into the surrounding regional grids where issues in other states would spill over and adversely effect Texas.
I can't blame Texas for coming to the decision that it's better to implement one's own isolated grid so that mist problems are self-contained to that, and there is a bit more freedom to experiment.
That freedom comes with tradeoffs, and Texas has only itself to blame. I find it amusing because for the most part it's always out of staters that get out of shape out about it.
I can say, I can count on my fingers and toes the number of brown /blackout out periods in the past couple years we've had in Texas, qnd trace those failures to somewher in State. My mom back in VA however gets to deal with several hour irregular blackouts with no explanation whatsoever. There were two or three just in the time I was back there visiting.
Oveeall, it seems to me like the peaks may be more troublesome to Texas, but the overall consumption does seem to have fewer hiccups involved, and for somewhere where AC is a must, I'm pretty okay with that.
As long as they effing winterize. Winter a year or do ago was a boondoggle of epic proportions, and ERCOT's and PUC's leadership was as damn close to beng transparebtly corrupt as I've ever seen.