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[EventId:202603071405_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 07 March 2026 14:05
Issued by Australian Energy Market Operator Ltd at 1405 hrs on 7 March 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 7 March 2026.
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 1405 hrs on 7 March 2026.
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.
[EventId:202603071300_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 07 March 2026 13:00
Issued by Australian Energy Market Operator Ltd at 1300 hrs on 7 March 2026
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 7 March 2026.
Refer to market notice: 134603
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 1300 hrs on 7 March 2026.
This is an AEMO autogenerated Market Notice.
[EventId:202603071210_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 07 March 2026 12:10
Issued by Australian Energy Market Operator Ltd at 1210 hrs on 7 March 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 7 March 2026.
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 1210 hrs on 7 March 2026.
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:202603061630_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 06 March 2026 16:30
Issued by Australian Energy Market Operator Ltd at 1630 hrs on 6 March 2026
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 6 March 2026.
Refer to market notice: 134584
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 1630 hrs on 6 March 2026.
This is an AEMO autogenerated Market Notice.
[EventId:202603061535_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 06 March 2026 15:35
Issued by Australian Energy Market Operator Ltd at 1535 hrs on 6 March 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 6 March 2026.
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 1535 hrs on 6 March 2026.
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.
Fast Frequency Response Market - Local dispatch of Very Fast Contingency FCAS in QLD
Following a review of the operation of the Very Fast FCAS market, from 10th Mar 2026 AEMO will increase the cap on dispatch of Very Fast Contingency FCAS in the QLD region from 100 MW to 200 MW, during periods where islanding of the QLD region is considered credible.
No other changes to the dispatch of Very Fast FCAS or FCAS constraint equations will be made on this date.
For more information on the Fast Frequency Response (FFR) initiative, please visit:
https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
AEMO Operations
[EventId:202603041645_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 04 March 2026 16:45
Issued by Australian Energy Market Operator Ltd at 1645 hrs on 4 March 2026
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 March 2026.
Refer to market notice: 134423
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 1645 hrs on 4 March 2026.
This is an AEMO autogenerated Market Notice.
[EventId:202603041605_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 04 March 2026 16:05
Issued by Australian Energy Market Operator Ltd at 1605 hrs on 4 March 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 March 2026.
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 1605 hrs on 4 March 2026.
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.
Update - Vulnerable lines in Qld region
Update - Lightning vulnerable lines in Qld region
Refer to AEMO Electricity Market Notice 133798 and 133799
At 1650 hrs on 19/02/2026 the Goonyella - North Goonyella Tee - Stony Creek No. 7122 and Goonyella - Newlands No. 7155 132 kV lines tripped and auto reclosed.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Goonyella - North Goonyella Tee - Stony Creek No. 7122 and Goonyella - Newlands No. 7155 132 kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations