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[EventId:202606012000_NRM_VIC1_NSW1_stopped] NEGRES CONSTRAINT NRM_VIC1_NSW1 ceased operating from 01 June 2026 20:00
Issued by Australian Energy Market Operator Ltd at 2000 hrs on 1 June 2026
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 1 June 2026.
Refer to market notice: 144181
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to NSW directional interconnector.
The negative residue constraint NRM_VIC1_NSW1 ceased operating at 2000 hrs on 1 June 2026.
This is an AEMO autogenerated Market Notice.
[EventId:202606011820_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 01 June 2026 18:20
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 1 June 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 1 June 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 NSW directional interconnector.
The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 1820 hrs on 1 June 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.
Network Augmentation Commissioned - NSW Region - 09 May 2026
A network augmentation has been commissioned in the NSW Region.
At 1740 hrs the following equipment was commissioned.
Wagga - Dinawan 6L 330 kV Line
Wagga - Dinawan 6J 330 kV Line
Dinawan 330 kV A and B Buses
Manager NEM Real Time Operations
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 5th May 2026 AEMO will increase the cap on dispatch of Very Fast Contingency FCAS in the QLD region from 200 MW to 250 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
Update - Vulnerable lines in Tas region
Update - Lightning vulnerable lines in Tas region
Refer to AEMO Electricity Market Notice 141036
At 1357hrs 11/04/2026 the Farrell -Tribute 220 kV line and Farrell - John Butters 220kV Line tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Farrell -Tribute 220 kV line and the Farrell - John Butters 220kV line to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
[EventId:202604131615_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 13 April 2026 16:15
Issued by Australian Energy Market Operator Ltd at 1615 hrs on 13 April 2026
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 13 April 2026.
Refer to market notice: 141054
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the QLD to NSW directional interconnector.
The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1615 hrs on 13 April 2026.
This is an AEMO autogenerated Market Notice.
[EventId:202604131535_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 13 April 2026 15:35
Issued by Australian Energy Market Operator Ltd at 1535 hrs on 13 April 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 13 April 2026.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.
The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1535 hrs on 13 April 2026.
This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202604101945_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 10 April 2026 19:45
Issued by Australian Energy Market Operator Ltd at 1945 hrs on 10 April 2026
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 10 April 2026.
Refer to market notice: 141014
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 1945 hrs on 10 April 2026.
This is an AEMO autogenerated Market Notice.
[EventId:202604101900_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 10 April 2026 19:00
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 10 April 2026
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 10 April 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 1900 hrs on 10 April 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.