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Reclassification of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 132kV line line in QLD1 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: QLD1
Lines: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 13/12/2024 15:25 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 16/12/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 121791 has been updated at 1400 hrs 13/12/2024 to the following:
From 1530 hrs to 2130 hrs 16/12/2024.
The forecast capacity reserve requirement is 1395 MW.
The minimum capacity reserve available is 710 MW.
AEMO Operations
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 16/12/2024
The Forecast LOR1 condition in the VIC region advised in AEMO Electricity Market Notice No. 121795 has been updated at 1400 hrs 13/12/2024 to the following:
From 1630 hrs to 1730 hrs 16/12/2024.
The forecast capacity reserve requirement is 1120 MW.
The minimum capacity reserve available is 1031 MW.
AEMO Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 15/12/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 121793 is cancelled at 1400 hrs 13/12/2024.
AEMO Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 17/12/2024
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 121794 is cancelled at 1400 hrs 13/12/2024.
AEMO Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 16/12/2024
The Forecast LOR1 condition in the TAS region advised in AEMO Electricity Market Notice No. 121796 is cancelled at 1400 hrs 13/12/2024.
AEMO Operations
Reclassification of a Non-Credible Contingency Event: Guybal Munjan - Chalumbin 857 275kV line line and Guybal Munjan - Chalumbin 858 275kV line line in QLD1 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: QLD1
Lines: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line
Duration: 13/12/2024 13:14 until further notice
Constraint set(s) invoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
CORRECTION: Update - Vulnerable lines in QLD region
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 121840
Fix typo: Line 7141 should read Line 7143
At 2026 hrs 12/12/2024 the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines in QLD 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: QLD
Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines
Duration: 13/12/2024 13:07 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations