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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.
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 17/05/2026
The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 144106 is cancelled at 1400 hrs 17/05/2026.
Manager NEM Real Time Operations
PDPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 18/05/2026
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following Period:
[1.] From 1700 hrs 18/05/2026 to 1900 hrs 18/05/2026.
The forecast capacity reserve requirement is 759 MW.
The minimum capacity reserve available is 357 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 19/05/2026
The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 144093 is cancelled at 1030 hrs 17/05/2026.
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 19/05/2026
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following period:
[1.] From 0600 hrs 19/05/2026 to 1930 hrs 19/05/2026.
The forecast capacity reserve requirement is 760 MW.
The minimum capacity reserve available is 605 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
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