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128212SETTLEMENTS RESIDUE21/07/2025 04:30:39 PM
[EventId:202507211630_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 21 July 2025 16:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1630 hrs on 21 July 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 21 July 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 1630 hrs on 21 July 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 1630 hrs on 21 July 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 21 July 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 1630 hrs on 21 July 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.
128190INTER-REGIONAL TRANSFER19/07/2025 07:35:53 PM
Inter-regional transfer limit variation - Eraring 500kV - Kemps Creek 5A2 500kV Line - NSW region - 19/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Eraring500kV - Kemps Creek 5A2 500kV Line - NSW region - 19/07/2025
At 1910 hrs 19/07/2025 there was a short notice outage of Eraring 500kV - Kemps Creek 5A2 500kV Line .
The following constraint set(s) invoked at 1920 hrs 19/07/2025
N-ERKC_ONE
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 - Eraring500kV - Kemps Creek 5A2 500kV Line - NSW region - 19/07/2025
At 1910 hrs 19/07/2025 there was a short notice outage of Eraring 500kV - Kemps Creek 5A2 500kV Line .
The following constraint set(s) invoked at 1920 hrs 19/07/2025
N-ERKC_ONE
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
128176INTER-REGIONAL TRANSFER19/07/2025 03:25:24 PM
Inter-regional transfer limit variation - Bulgana-Horsham 220kV LINE - VIC region - 19/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Bulgana-Horsham 220kV LINE - VIC region - 19/07/2025
A planned outage of Bulgana-Horsham 220kV LINE in the VIC region was scheduled from 0700 hrs 19/07/2025 to 1730 hrs 19/07/2025.
The outage has been completed and Bulgana-Horsham 220kV LINE returned to service at 1525 hrs 19/07/2025
Constraint set(s) revoked: V-BUHO
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Bulgana-Horsham 220kV LINE - VIC region - 19/07/2025
A planned outage of Bulgana-Horsham 220kV LINE in the VIC region was scheduled from 0700 hrs 19/07/2025 to 1730 hrs 19/07/2025.
The outage has been completed and Bulgana-Horsham 220kV LINE returned to service at 1525 hrs 19/07/2025
Constraint set(s) revoked: V-BUHO
Manager NEM Real Time Operations
128164INTER-REGIONAL TRANSFER18/07/2025 12:18:28 PM
Inter-regional transfer limit variation - S3 Greenbank 275 kV SVC - QLD region - 18/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - S3 Greenbank 275 kV SVC - QLD region - 18/07/2025
At 1207 hrs 18/07/2025 there was an unplanned outage of S3 Greenbank 275 kV SVC.
The following constraint set(s) invoked at 1215 hrs 18/07/2025
Q-GB_VC
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - S3 Greenbank 275 kV SVC - QLD region - 18/07/2025
At 1207 hrs 18/07/2025 there was an unplanned outage of S3 Greenbank 275 kV SVC.
The following constraint set(s) invoked at 1215 hrs 18/07/2025
Q-GB_VC
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
128151INTER-REGIONAL TRANSFER17/07/2025 03:15:24 PM
Inter-regional transfer limit variation - Calvale-Halys 8810 275kV LINE - QLD region - 17/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Calvale-Halys 8810 275kV LINE - QLD region - 17/07/2025
A planned outage of Calvale-Halys 8810 275kV LINE in the QLD region was scheduled from 2300 hrs 15/07/2025 to 1600 hrs 18/07/2025.
The outage has been completed and Calvale-Halys 8810 275kV LINE returned to service at 1500 hrs 17/07/2025
Constraint set(s) revoked: Q-HACL
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Calvale-Halys 8810 275kV LINE - QLD region - 17/07/2025
A planned outage of Calvale-Halys 8810 275kV LINE in the QLD region was scheduled from 2300 hrs 15/07/2025 to 1600 hrs 18/07/2025.
The outage has been completed and Calvale-Halys 8810 275kV LINE returned to service at 1500 hrs 17/07/2025
Constraint set(s) revoked: Q-HACL
Manager NEM Real Time Operations
128134INTER-REGIONAL TRANSFER16/07/2025 01:32:26 PM
Inter-regional transfer limit variation - Heywood M1 Transformer - VIC region - 16/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Heywood M1 Transformer- VIC region - 16/07/2025
A planned outage of Heywood M1 Transformer in the VIC region was scheduled from 0700 hrs 16/07/2025 to 1800 hrs 16/07/2025.
The outage has been completed and Heywood M1 Transformer returned to service at 1335 hrs 16/07/2025
Constraint set(s) revoked: V-HYTX_M12
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood M1 Transformer- VIC region - 16/07/2025
A planned outage of Heywood M1 Transformer in the VIC region was scheduled from 0700 hrs 16/07/2025 to 1800 hrs 16/07/2025.
The outage has been completed and Heywood M1 Transformer returned to service at 1335 hrs 16/07/2025
Constraint set(s) revoked: V-HYTX_M12
Manager NEM Real Time Operations
128105INTER-REGIONAL TRANSFER12/07/2025 10:59:10 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 3 Leg of Directlink .
The following constraint set was invoked at 2255 hrs 12/07/2025
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 3 Leg of Directlink .
The following constraint set was invoked at 2255 hrs 12/07/2025
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
128104INTER-REGIONAL TRANSFER12/07/2025 09:47:24 PM
Inter-regional transfer limit variation - Braemar (R2) No.1 330/275 kV Transformer - QLD region - 12/07/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Braemar (R2) No.1 330/275 kV Transformer - QLD region - 12/07/2025
At 2145 hrs 12/07/2025 there was an unplanned outage of Braemar (R2) No.1 330/275 kV Transformer.
The following constraint set(s) invoked at 2145 hrs 12/07/2025
Q-BRTX1
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Braemar (R2) No.1 330/275 kV Transformer - QLD region - 12/07/2025
At 2145 hrs 12/07/2025 there was an unplanned outage of Braemar (R2) No.1 330/275 kV Transformer.
The following constraint set(s) invoked at 2145 hrs 12/07/2025
Q-BRTX1
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
128098INTER-REGIONAL TRANSFER12/07/2025 01:52:13 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 1350 hrs 12/07/2025
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 1350 hrs 12/07/2025
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