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Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 11/06/2025 22:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127506
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 11/06/2025 21:22 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of the Actual Lack Of Reserve Level 1 (LOR1) condition in the QLD Region on 11/06/2025
The Actual LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 127504 is cancelled at 1945 hrs 11/06/2025.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 11/06/2025
Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 11/06/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1900 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs
The capacity reserve requirement is 730 MW
The minimum capacity reserve available is 693 MW
Manager NEM Real Time Operations
Update - Non-credible contingency event - QLD region - 11/06/2025
Update - Non-credible contingency event - QLD region - 11/06/2025
Refer AEMO Electricity Market Notice 127499
At 1713 hrs the Belmont (H3) No.1 275 kV bus and Loganlea - Belmont (829) 275 kV line 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
Non-credible contingency event - QLD region - 11/06/2025
Non-credible contingency event - QLD region - 11/06/2025
At 1713 hrs the Belmont (H3) No.1 275 kV bus 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
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 12/06/2025
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 127494 is cancelled at 1700 hrs 11/06/2025.
Manager NEM Real Time Operations
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 11/06/2025
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following Period:
[1.] From 1700 hrs 11/06/2025 to 1930 hrs 11/06/2025.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 638 MW.
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 17/06/2025
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
1. From 1100 hrs to 1130 hrs 17/06/2025.
The forecast capacity reserve requirement is 440 MW.
The minimum capacity reserve available is 339 MW.
2. From 1400 hrs to 1430 hrs 17/06/2025.
The forecast capacity reserve requirement is 500 MW.
The minimum capacity reserve available is 371 MW.
AEMO Operations