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[EventId:202505281845_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 28 May 2025 18:45
Issued by Australian Energy Market Operator Ltd at 1845 hrs on 28 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 May 2025.
Refer to market notice: 127328
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1845 hrs on 28 May 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202505281830_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 28 May 2025 18:30
Issued by Australian Energy Market Operator Ltd at 1830 hrs on 28 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1830 hrs on 28 May 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202505281800_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 28 May 2025 18:00
Issued by Australian Energy Market Operator Ltd at 1800 hrs on 28 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 May 2025.
Refer to market notice: 127323
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1800 hrs on 28 May 2025.
This is an AEMO autogenerated Market Notice.
Inter-regional transfer limit variation - Armidale Dumaresq 8C and Dumaresq Bulli 8M 330kV lines - NSW region - 28/05/2025
Inter-regional transfer limit variation - Armidale Dumaresq 8C and Dumaresq Bulli 8M 330kV lines - NSW region - 28/05/2025
At 1750 hrs 28/05/2025 there was a short notice outage of Armidale Dumaresq 8C and Dumaresq Bulli 8M 330kV lines.
The following constraint set(s) invoked at 1745 hrs 28/05/2025
N-ARDM_8C
N-X_8C+DM+TW_SVC
and the following constraint set(s) invoked at 1750 hrs 28/05/2025
I-BCDM_ONE
N-X_8L+DM+TW_SVC
These constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
[EventId:202505281635_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 28 May 2025 16:35
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 28 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1635 hrs on 28 May 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202505271800_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 27 May 2025 18:00
Issued by Australian Energy Market Operator Ltd at 1800 hrs on 27 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 27 May 2025.
Refer to market notice: 127307
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 1800 hrs on 27 May 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202505271640_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 27 May 2025 16:40
Issued by Australian Energy Market Operator Ltd at 1640 hrs on 27 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 27 May 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 1640 hrs on 27 May 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.
Update - Non-credible contingency event - NSW region - 07/03/2025
Update - Non-credible contingency event - NSW region - 07/03/2025
Refer AEMO Electricity Market Notice 125536
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 no longer reclassify this event as a credible contingency event.
Region: NSW
Elements:
- Lismore132 - Mullumbimby 9U6 132kV Line
- Lismore132 - Mullumbimby 9U7 132kV Line
- Ewingsdale - Mullumbimby 9G5 132kV Line
Duration: 1730 hrs 11/03/2025 until 1230 hrs 27/05/2025
Constraint set(s) invoked: NONE
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Brinkworth - Templers West 275 kV line - SA region - 27/05/2025
Inter-regional transfer limit variation - Brinkworth - Templers West 275 kV line - SA region - 27/05/2025
At 0337 hrs 27/05/2025 there was an unplanned outage of Brinkworth - Templers West 275 kV line.
The following constraint set(s) invoked at 0340 hrs 27/05/2025
S-BRTW
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