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Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 due to Lightning.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 28/08/2024 03:29 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Update - Non-credible contingency event - VIC region - 28/08/2024
Update - Non-credible contingency event - VIC region - 28/08/2024
Refer AEMO Electricity Market Notice 117908
At 0134 hrs the APD No 2 Potline was returned to service.
At 0200 hrs the APD No 1 Potline was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 28/08/2024
Non-credible contingency event - VIC region - 28/08/2024
At 0001 hrs the APD No1 Potline and the APD No 2 Potline tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning.
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Duration: 27/08/2024 23:50 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer AEMO Electricity Market Notice 117812
The TORRB3 TORRENS ISLAN direction is now expected to stay in place until 1830 hrs 28/08/2024.
The direction update is issued at 1600 hrs 27/08/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer AEMO Electricity Market Notice 117811
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 29/08/2024.
The direction update is issued at 1600 hrs 27/08/2024.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: SA
Lines: Para-Templers West and Magill-Torrens Island A 275kV lines
Duration: 0530 hrs 27 Aug 2024 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible Contingency Event: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Cancellation of the reclassification of a Non-Credible Contingency Event: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Refer AEMO Electricity Market Notice 117212
AEMO considers the simultaneous trip of the following elements no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW
Elements: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Cancellation time:: 1400 hrs 26/08/2024
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - SA region 22/08/2024
Cancellation - AEMO Intervention Event - SA region 22/08/2024
Refer to Market Notice 117756
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs on 26/08/2024.
Manager NEM Real Time Operations