A quick snapshot from NEMwatch at 14:20 today highlighting the loss of approximately 2000MW of demand this afternoon – dropping the level of Scheduled Demand down to 3,775MW:
The AEMO Market Notice highlighted says:
From : AEMO
To : NEMITWEB1
Creation Date : 25/05/2021 14:10:44
Notice ID : 85926
Notice Type ID : POWER SYSTEM EVENTS
Notice Type Description : Emergency events/conditions
Issue Date : 25/05/2021
External Reference : Non-credible contingency event – Qld region – 25/05/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event – Qld region – 25/05/2021
At 1344 hrs the Callide C Power station generating units C3 and C4 tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
END OF REPORT
We can see the loss in generation output in the chart at the bottom of the NEMwatch snapshot.
PS… at 15:09 this series of tweets from CS Energy provided more context to an origination of the problems: