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125550POWER SYSTEM EVENTS12/03/2025 09:47:07 AM
Update - Non-credible contingency event - TAS region - 12/03/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 12/03/2025
Refer AEMO Electricity Market Notice 125548
At 09:29 hrs the Burnie - Smithton Tee Port Latta No. 1 110kV Line and the Burnie - Smithton Tee Port Latta No. 2 110kV Line tripped and auto-reclosed (2nd event).
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: TAS
Elements: Burnie - Smithton Tee Port Latta No. 1 110kV Line and Burnie - Smithton Tee Port Latta No. 2 110kV Line
Duration: 0940 hrs 12/03/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 12/03/2025
Refer AEMO Electricity Market Notice 125548
At 09:29 hrs the Burnie - Smithton Tee Port Latta No. 1 110kV Line and the Burnie - Smithton Tee Port Latta No. 2 110kV Line tripped and auto-reclosed (2nd event).
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: TAS
Elements: Burnie - Smithton Tee Port Latta No. 1 110kV Line and Burnie - Smithton Tee Port Latta No. 2 110kV Line
Duration: 0940 hrs 12/03/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
125548POWER SYSTEM EVENTS12/03/2025 09:46:32 AM
Non-credible contingency event - TAS region - 12/03/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 12/03/2025
At 0909 hrs the Burnie -Smithton Tee Port Latta No. 1 110kV Line and the Burnie -Smithton Tee Port Latta No. 2 110kV Line tripped and auto-reclosed.
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 - TAS region - 12/03/2025
At 0909 hrs the Burnie -Smithton Tee Port Latta No. 1 110kV Line and the Burnie -Smithton Tee Port Latta No. 2 110kV Line tripped and auto-reclosed.
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
125543INTER-REGIONAL TRANSFER12/03/2025 07:03:39 AM
Inter-regional transfer limit variation - Waterloo - Hummocks 132kV Line - SA region - 12/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Waterloo - Hummocks 132kV Line - SA region - 12/03/2025
At 0641 hrs 12/03/2025 there was an unplanned outage of Waterloo - Hummocks 132kV Line.
The following constraint set(s) invoked at 0650 hrs 12/03/2025
S-HUWT
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Waterloo - Hummocks 132kV Line - SA region - 12/03/2025
At 0641 hrs 12/03/2025 there was an unplanned outage of Waterloo - Hummocks 132kV Line.
The following constraint set(s) invoked at 0650 hrs 12/03/2025
S-HUWT
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125518INTER-REGIONAL TRANSFER11/03/2025 10:05:53 AM
Inter-regional transfer limit variation - Penola West - South East 132 kV line and Kincraig - Penola West 132 kV line - SA region - 11/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Penola West - South East 132 kV line and Kincraig - Penola West 132 kV line - SA region - 11/03/2025
At 0917 hrs 11/03/2025 there was an unplanned outage of Penola West - South East 132 kV line and Kincraig - Penola West 132 kV line.
The following constraint set(s) invoked at 0925 hrs 11/03/2025
S-KNPW and S-PWSE.
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Penola West - South East 132 kV line and Kincraig - Penola West 132 kV line - SA region - 11/03/2025
At 0917 hrs 11/03/2025 there was an unplanned outage of Penola West - South East 132 kV line and Kincraig - Penola West 132 kV line.
The following constraint set(s) invoked at 0925 hrs 11/03/2025
S-KNPW and S-PWSE.
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125517POWER SYSTEM EVENTS11/03/2025 10:05:23 AM
Non-credible contingency event - SA region - 11/03/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 11/03/2025
At 0917 hrs the Penola West - South East 132 kV line and the Kincraig - Penola West 132 kV line tripped.
AEMO did not instruct load shedding.
Approximately 3 MW of electrical load has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - SA region - 11/03/2025
At 0917 hrs the Penola West - South East 132 kV line and the Kincraig - Penola West 132 kV line tripped.
AEMO did not instruct load shedding.
Approximately 3 MW of electrical load has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
125357INTER-REGIONAL TRANSFER07/03/2025 07:27:37 AM
Inter-regional transfer limit variation - Lismore SVC - NSW region - 07/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lismore SVC - NSW region - 07/03/2025
At 0720 hrs 07/03/2025 there was an unplanned outage of Lismore SVC.
The following constraint set(s) invoked at 0725 hrs 07/03/2025
N-LS_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lismore SVC - NSW region - 07/03/2025
At 0720 hrs 07/03/2025 there was an unplanned outage of Lismore SVC.
The following constraint set(s) invoked at 0725 hrs 07/03/2025
N-LS_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125356INTER-REGIONAL TRANSFER07/03/2025 06:44:20 AM
Inter-Regional Transfer limit variation - Directlink - NSW Region
AEMO ELECTRICITY MARKET NOTICE
Refer to Market Notice 125355.
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 and 2 cables of Directlink .
The following constraint set was invoked at 0620 hrs 07/03/2025
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Refer to Market Notice 125355.
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 and 2 cables of Directlink .
The following constraint set was invoked at 0620 hrs 07/03/2025
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
125355POWER SYSTEM EVENTS07/03/2025 06:40:37 AM
Non-credible contingency event - NSW region - 07/03/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 07/03/2025
At 0612 hrs the following plant tripped.
Lismore132 - Mullumbimby 9U6 132kV Line
Lismore132 - Mullumbimby 9U7 132kV Line
Ewingsdale - Mullumbimby 9G5 132kV Line
No 1 and 2 cables of Directlink
AEMO did not instruct load shedding.
Approximately 7MW of bulk electrical load has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 07/03/2025
At 0612 hrs the following plant tripped.
Lismore132 - Mullumbimby 9U6 132kV Line
Lismore132 - Mullumbimby 9U7 132kV Line
Ewingsdale - Mullumbimby 9G5 132kV Line
No 1 and 2 cables of Directlink
AEMO did not instruct load shedding.
Approximately 7MW of bulk electrical load has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
125312INTER-REGIONAL TRANSFER06/03/2025 11:29:23 AM
Inter-Regional Transfer limit variation - Directlink - NSW Region
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No. 1 and 2 Legs of Directlink.
The following constraint set was invoked at 1125 hrs 06/03/2025.
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No. 1 and 2 Legs of Directlink.
The following constraint set was invoked at 1125 hrs 06/03/2025.
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations