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124472INTER-REGIONAL TRANSFER11/02/2025 06:00:41 PM
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
At 1750 hrs 11/02/2025 there was a short notice outage of Yass Overload Control Scheme.
The following constraint set(s) invoked at 1750 hrs: N-YSWG_SCHEME
This constraint set(s) contains equations with the following interconnectors on the LHS,
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
At 1750 hrs 11/02/2025 there was a short notice outage of Yass Overload Control Scheme.
The following constraint set(s) invoked at 1750 hrs: N-YSWG_SCHEME
This constraint set(s) contains equations with the following interconnectors on the LHS,
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
124469INTER-REGIONAL TRANSFER11/02/2025 03:59:36 PM
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
At 1538 hrs 11/02/2025 there was an unplanned outage of MLTS-SMTS No1 500 kV line CB at SYTS .
The following constraint set(s) invoked at 1600 hrs 11/02/2025
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
At 1538 hrs 11/02/2025 there was an unplanned outage of MLTS-SMTS No1 500 kV line CB at SYTS .
The following constraint set(s) invoked at 1600 hrs 11/02/2025
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
124468INTER-REGIONAL TRANSFER11/02/2025 03:40:29 PM
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in SA region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
Referring to Market Notice 124466.
The power system security condition in the SA region, requiring AEMO to invoke the automated constraint set CA_SYDS_56BD5936 has ended at 1520 hrs.
Constraint set revoked: CA_SYDS_56BD5936
Manager NEM Real Time Operations
Referring to Market Notice 124466.
The power system security condition in the SA region, requiring AEMO to invoke the automated constraint set CA_SYDS_56BD5936 has ended at 1520 hrs.
Constraint set revoked: CA_SYDS_56BD5936
Manager NEM Real Time Operations
124466INTER-REGIONAL TRANSFER11/02/2025 02:19:04 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in SA region - 11/02/2025
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the SA region, AEMO has invoked automated constraint set CA_SYDS_56BD5936 from 1410 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-SA
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the SA region, AEMO has invoked automated constraint set CA_SYDS_56BD5936 from 1410 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-SA
Manager NEM Real Time Operations
124416INTER-REGIONAL TRANSFER10/02/2025 10:09:20 AM
Inter-regional transfer limit variation - Ingleburn - Wallerawang (77) 330 kV line - NSW region - 10/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Ingleburn - Wallerawang (77) 330 kV line - NSW region - 10/02/2025
At 0945 hrs 10/02/2025 there was an unplanned outage of Ingleburn - Wallerawang (77) 330 kV line.
The following constraint set(s) invoked at 0955 hrs 10/02/2025
N-X_AVMA_SSWW
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Ingleburn - Wallerawang (77) 330 kV line - NSW region - 10/02/2025
At 0945 hrs 10/02/2025 there was an unplanned outage of Ingleburn - Wallerawang (77) 330 kV line.
The following constraint set(s) invoked at 0955 hrs 10/02/2025
N-X_AVMA_SSWW
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
124301POWER SYSTEM EVENTS07/02/2025 03:34:46 PM
Update - Non-credible contingency event - NSW region - 23/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123615
At 0240 hrs on the 23/01/2025 there was a trip and auto reclose of the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
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
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123615
At 0240 hrs on the 23/01/2025 there was a trip and auto reclose of the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
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
124232INTER-REGIONAL TRANSFER06/02/2025 08:25:29 AM
Inter-regional transfer limit variation - Collector - Marulan (4) 330 kV line - NSW region - 06/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation -Collector - Marulan (4) 330 kV line - NSW region - 06/02/2025
The outage has been completed and Collector - Marulan (4) 330 kV line returned to service at 0825 hrs 06/02/2025
Constraint set(s) revoked: N-CTMN_4_WG_CLOSE
Manager NEM Real Time Operations
Inter-regional transfer limit variation -Collector - Marulan (4) 330 kV line - NSW region - 06/02/2025
The outage has been completed and Collector - Marulan (4) 330 kV line returned to service at 0825 hrs 06/02/2025
Constraint set(s) revoked: N-CTMN_4_WG_CLOSE
Manager NEM Real Time Operations
124181POWER SYSTEM EVENTS05/02/2025 03:22:35 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124044
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 cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124044
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 cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
124125INTER-REGIONAL TRANSFER04/02/2025 05:20:29 PM
Inter-regional transfer limit variation - Collector WF to Marulan No. 4 330 kV Line - NSW region - 04/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Collector WF to Marulan No. 4 330 kV Line - NSW region - 04/02/2025
A planned outage of Collector WF to Marulan No. 4 330 kV Line in the NSW region was scheduled from 0600 hrs 02/02/2025 to 1600 hrs 19/02/2025.
The outage has been completed and Collector WF to Marulan No. 4 330 kV Line returned to service at 1710 hrs 04/02/2025
Constraint set(s) revoked: N-CTMN_4_WG_CLOSE
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Collector WF to Marulan No. 4 330 kV Line - NSW region - 04/02/2025
A planned outage of Collector WF to Marulan No. 4 330 kV Line in the NSW region was scheduled from 0600 hrs 02/02/2025 to 1600 hrs 19/02/2025.
The outage has been completed and Collector WF to Marulan No. 4 330 kV Line returned to service at 1710 hrs 04/02/2025
Constraint set(s) revoked: N-CTMN_4_WG_CLOSE
Manager NEM Real Time Operations