Filter by:
Filter by category
Filter by Date
From
To
126871INTER-REGIONAL TRANSFER05/05/2025 01:52:26 PM
Inter-regional transfer limit variation - Greenbank - Mudgeeraba No. 836 275 kV Line - QLD region - 05/05/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Greenbank - Mudgeeraba No. 836 275 kV Line - QLD region - 05/05/2025
At 1336 hrs 05/05/2025 there was an unplanned outage of Greenbank - Mudgeeraba No. 836 275 kV Line.
The following constraint set(s) invoked at 1340 hrs 05/05/2025
Q-GBMU_835_836
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Greenbank - Mudgeeraba No. 836 275 kV Line - QLD region - 05/05/2025
At 1336 hrs 05/05/2025 there was an unplanned outage of Greenbank - Mudgeeraba No. 836 275 kV Line.
The following constraint set(s) invoked at 1340 hrs 05/05/2025
Q-GBMU_835_836
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
126861RECLASSIFY CONTINGENCY05/05/2025 01:21:02 PM
Reclassification of a Non-Credible Contingency Event: Gordon - Chapel St No 1 220kV line and Gordon - Chapel St No 2 220kV line in TAS1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
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: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV
Duration: 05/05/2025 13:20 until further notice
Constraint set(s) invoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
T-CSGO_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
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: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV
Duration: 05/05/2025 13:20 until further notice
Constraint set(s) invoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
T-CSGO_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
126857RECLASSIFY CONTINGENCY05/05/2025 12:36:31 PM
Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
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: 05/05/2025 12:36 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: 05/05/2025 12:36 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
126853INTER-REGIONAL TRANSFER03/05/2025 04:11:50 PM
Inter-regional transfer limit variation - South Morang - Thomastown No 2 220 kV Line - VIC region - 03/05/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation -South Morang - Thomastown No 2 220 kV Line - VIC region - 03/05/2025
A planned outage of South Morang - Thomastown No 2 220 kV Line in the VIC region was scheduled from 0629 hrs 03/05/2025 to 1830 hrs 03/05/2025.
The outage has been completed and South Morang - Thomastown No 2 220 kV Line returned to service at 1615 hrs 03/05/2025
Constraint set(s) revoked: V-SMTT2
Manager NEM Real Time Operations
Inter-regional transfer limit variation -South Morang - Thomastown No 2 220 kV Line - VIC region - 03/05/2025
A planned outage of South Morang - Thomastown No 2 220 kV Line in the VIC region was scheduled from 0629 hrs 03/05/2025 to 1830 hrs 03/05/2025.
The outage has been completed and South Morang - Thomastown No 2 220 kV Line returned to service at 1615 hrs 03/05/2025
Constraint set(s) revoked: V-SMTT2
Manager NEM Real Time Operations
126829RECLASSIFY CONTINGENCY01/05/2025 04:12:51 AM
Cancellation 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.
AEMO ELECTRICITY MARKET NOTICE
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: QLD1
Lines: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line
Cancellation time: 01/05/2025 04:12
Constraint set(s) revoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 126828
Auto-generated on behalf of Manager NEM Real Time Operations
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: QLD1
Lines: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line
Cancellation time: 01/05/2025 04:12
Constraint set(s) revoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 126828
Auto-generated on behalf of Manager NEM Real Time Operations
126828RECLASSIFY CONTINGENCY01/05/2025 03:16:15 AM
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.
AEMO ELECTRICITY MARKET NOTICE
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: 01/05/2025 03:16 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
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: 01/05/2025 03:16 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
126812INTER-REGIONAL TRANSFER30/04/2025 04:31:48 PM
Inter-regional transfer limit variation - Red Cliffs - Buronga X1 220kV Line - NSW region - 30/04/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Red Cliffs - Buronga X1 220kV Line - NSW region - 30/04/2025
A planned outage of Red Cliffs - Buronga X1 220kV Line in the NSW region was scheduled from 0700 hrs 27/04/2025 to 1700 hrs 02/05/2025.
The outage has been completed and Red Cliffs - Buronga X1 220kV Line returned to service at 1625 hrs 30/04/2025
Constraint set(s) revoked: I-BURC_X1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Red Cliffs - Buronga X1 220kV Line - NSW region - 30/04/2025
A planned outage of Red Cliffs - Buronga X1 220kV Line in the NSW region was scheduled from 0700 hrs 27/04/2025 to 1700 hrs 02/05/2025.
The outage has been completed and Red Cliffs - Buronga X1 220kV Line returned to service at 1625 hrs 30/04/2025
Constraint set(s) revoked: I-BURC_X1
Manager NEM Real Time Operations
126811RECLASSIFY CONTINGENCY30/04/2025 03:54:51 PM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 30/04/2025 15:54
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 126807
Auto-generated on behalf of Manager NEM Real Time Operations
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 30/04/2025 15:54
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 126807
Auto-generated on behalf of Manager NEM Real Time Operations
126807RECLASSIFY CONTINGENCY30/04/2025 02:51:35 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 30/04/2025 14:51 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 30/04/2025 14:51 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations