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124060INTER-REGIONAL TRANSFER04/02/2025 05:11:43 AM
Inter-regional transfer limit variation - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 04/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 04/02/2025
At 0449 hrs 04/02/2025 there was an unplanned outage of South Morang - Dederang No.1 330kV line series capacitor.
The following constraint set(s) invoked at 0505 hrs 04/02/2025
V-SMSC
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 - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 04/02/2025
At 0449 hrs 04/02/2025 there was an unplanned outage of South Morang - Dederang No.1 330kV line series capacitor.
The following constraint set(s) invoked at 0505 hrs 04/02/2025
V-SMSC
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
124044POWER SYSTEM EVENTS03/02/2025 02:13:15 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 124043
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: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
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: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
124043POWER SYSTEM EVENTS03/02/2025 02:02:24 PM
Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 and No.2 220 kV lines 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
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 - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 and No.2 220 kV lines 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
124020INTER-REGIONAL TRANSFER02/02/2025 10:38:53 PM
Update - Inter-regional transfer limit variation - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025
At 2138 hrs 02/02/2025 there was an unplanned outage of Ararat to Waubra to Ballarat 220 kV line.
The following constraint set(s) invoked at 2150 hrs 02/02/2025
V-AR_WB_BA
The following constraint set(s) invoked at 2230 hrs 02/02/2025
V-KIAMAL_SC_220CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,T-V-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 - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025
At 2138 hrs 02/02/2025 there was an unplanned outage of Ararat to Waubra to Ballarat 220 kV line.
The following constraint set(s) invoked at 2150 hrs 02/02/2025
V-AR_WB_BA
The following constraint set(s) invoked at 2230 hrs 02/02/2025
V-KIAMAL_SC_220CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,T-V-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
124017INTER-REGIONAL TRANSFER02/02/2025 10:04:02 PM
Inter-regional transfer limit variation - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025
At 2138 hrs 02/02/2025 there was an unplanned outage of Ararat to Waubra to Ballarat 220 kV line.
The following constraint set(s) invoked at 2150 hrs 02/02/2025
V-AR_WB_BA
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,T-V-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 - Ararat to Waubra to Ballarat 220 kV line - VIC region - 02/02/2025
At 2138 hrs 02/02/2025 there was an unplanned outage of Ararat to Waubra to Ballarat 220 kV line.
The following constraint set(s) invoked at 2150 hrs 02/02/2025
V-AR_WB_BA
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,T-V-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
123995SETTLEMENTS RESIDUE01/02/2025 06:30:45 PM
[EventId:202502011830_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 01 February 2025 18:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1830 hrs on 1 February 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 1 February 2025.
Refer to market notice: 123990
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 1830 hrs on 1 February 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1830 hrs on 1 February 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 1 February 2025.
Refer to market notice: 123990
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 1830 hrs on 1 February 2025.
This is an AEMO autogenerated Market Notice.
123990SETTLEMENTS RESIDUE01/02/2025 05:00:25 PM
[EventId:202502011700_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 01 February 2025 17:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 1 February 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 1 February 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1700 hrs on 1 February 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 1 February 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 1 February 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1700 hrs on 1 February 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
123980INTER-REGIONAL TRANSFER01/02/2025 08:53:03 AM
Inter-regional transfer limit variation - Armidale - Tamworth No. 86 330 kV Line - NSW region - 01/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale - Tamworth No. 86 330 kV Line - NSW region - 01/02/2025
A planned outage of Armidale - Tamworth No. 86 330 kV Line in the NSW region was scheduled to be completed at 1030 hrs 01/02/2025
The outage has been completed by 0835 hrs 01/02/2025
Constraint set(s) invoked:
N-ARTW_86
N-DM_SVC
N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale - Tamworth No. 86 330 kV Line - NSW region - 01/02/2025
A planned outage of Armidale - Tamworth No. 86 330 kV Line in the NSW region was scheduled to be completed at 1030 hrs 01/02/2025
The outage has been completed by 0835 hrs 01/02/2025
Constraint set(s) invoked:
N-ARTW_86
N-DM_SVC
N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
123931INTER-REGIONAL TRANSFER30/01/2025 03:24:25 PM
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 2 Leg of Directlink .
The following constraint set was invoked at 1525 hrs 30/01/2025
N-X_MBTE_2
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 2 Leg of Directlink .
The following constraint set was invoked at 1525 hrs 30/01/2025
N-X_MBTE_2
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