Rolling Blackouts?

Woke up this morning to a dark, quiet house. No biggie, probably a broken tree limb on a line somewhere. After a few minutes it will be back on... and it was. Then the power went out again a few hours later. This time I called Wise Electric to report it. I was told we are having rolling blackouts.

Not sure but this may be the first time I've experienced a rolling blackout. I thought Texas had it's own power grid so this wouldn't happen?

UPDATE: After watching a news report and a discussion with Brother Inlaw, we were wondering why the windmills didn't pick up the slack with the high winds when the other plants went down? Are they working? Do we need more?

I wonder if there is a way to monitor their output to the grid?