[martinald]

No. As I pointed out in another link, there were too many outages for transmission to cover it.

For example, California "only" has 10GW of north-south transmission capacity. TX lost nearly 45GW. Even if it was part of the East or West grid there wouldn't be the transmission capacity there to cover such a loss, plus the states closest to TX which were "connected" were also having major outages, which would have put even more strain on it.

TX does have HVDC interconnects to other states too, but I believe imports to TX were significantly down/zero over this crisis.

[txlpo78]

Exactly. The DC ties with the other grids are small and can only import <1 GW, but even if they were larger it wouldn’t have mattered much in this case. TX was pulling 600 MW from the Eastern grid but even that had to be shut off because Oklahoma, Arkansas, Louisiana, Missouri etc were all under blackouts too. The other grids had no spare electricity to share.

TX also has ties with Mexico, but those were useless too because even Mexico was hit hard by this storm and had blackouts all along the US border.