Texas' power grid has absolutely NOTHING to do with power outages that occur from hurricanes.
Texas' ERCOT power grid is working just fine. You have 30 million people living in Texas all have power except 1.3 million and that been lowered now to only half a million who don't have power, so 28 million people in Texas NEVER lost power. Texas grid is working just fine.
Downed power lines, and busted transformers on poles, gas meters installed... that is the responsibility of Centerpoint. Texas' ERCOT monitors electrical usage. It does NOT put up wires, transformers, gas meters, etc... The heavy winds blew in certain directions that affected less than 2 million people.