Just got off statewide elected officials call with ERCOT. Trying to relay from memory:
-17 GigaWatt still off line.
-Trying to bring stuff back on line ASAP.
-Combination of gas, coal, solar, wind, and nukes went off line. (Nukes?)
-500 MW (0.5GW) came back during the call
Sun warming up wind turbine blades and shed off ice that formed during cold rain will put wind farms back on line quickly.
Water vapor in gas lines freezing up sensors and regulators in LNG plants.
LNG well heads frozen at the pump.
All cold related outage.
There were cold related measures taken after the freeze of 2011.
But the measures were for 2011 level storm.
2021 far exceeded what was planned or expected.
Just didn't expect this cold and across the entire state.
ERCOT is not responsible for who gets blacked out.
That goes to the transmission entity... oncor, centerpoint, and co-ops decide how to rotate the blackouts. ERCOT just tells them how much load to shed.
The expected blackout cycle is supposed to be 24hr on 24 off.
The only regulation on blackouts is about first responders and critical infrastructure.
(Downtown and hospital districts are critical I would guess)
They apologize for not letting the public know that this was what was going to happen. They knew this was coming last week. (?)