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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.
Inter-regional transfer limit variation - Heywood M1 500/275kV XFMR - VIC region - 29/05/2026
Inter-regional transfer limit variation - Heywood M1 500/275kV XFMR - VIC region - 29/05/2026
A planned outage of Heywood M1 500/275kV XFMR in the VIC region was scheduled from 1100 hrs 25/05/2026 to 1800 hrs 29/05/2026.
The outage has been completed and Heywood M1 500/275kV XFMR returned to service at 0920 hrs 29/05/2026
Constraint set(s) revoked: V-HYTX_M12
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Koorangie to Wemen 220 kV Line - VIC region - 25/05/2026
Inter-regional transfer limit variation - Koorangie to Wemen 220 kV Line - VIC region - 25/05/2026
At 1130 hrs 25/05/2026 there was a short notice outage of Koorangie to Wemen 220 kV Line.
The following constraint set(s) invoked at 1130 hrs 25/05/2026
V-KOWE
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,T-V-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tailem Bend 275 kV East Bus - SA region - 24/05/2026
Inter-regional transfer limit variation - Tailem Bend 275 kV East Bus - SA region - 24/05/2026
At 1250 hrs 24/05/2026 there was a short notice outage of Tailem Bend 275 kV East Bus.
The following constraint set(s) invoked at 1250 hrs 24/05/2026
S-TB275_E_BUS
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South Morang F2 500/330kV XFMR - VIC region - 20/05/2026
Inter-regional transfer limit variation - South Morang F2 500/330kV XFMR - VIC region - 20/05/2026
The outage has been rescheduled for 0630 hrs 18/05/2026 to 1700 hrs 22/05/2026.
Constraint set(s) invoked: V-SMTX_F_R
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-SA,VIC1-NSW1,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 18/05/2026
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 144111 is cancelled at 1015 hrs 18/05/2026.
Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 18/05/2026
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 144108 has been updated to the following:
[1.] From 1700 hrs 18/05/2026 to 1900 hrs 18/05/2026.
The forecast capacity reserve requirement is 1194 MW.
The minimum capacity reserve available is 1014 MW.
Manager NEM Real Time Operations
ST PASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 19/01/2026
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 144092 has been updated to the following:
[1.] From 0600 hrs 19/05/2026 to 1930 hrs 19/05/2026.
The forecast capacity reserve requirement is 1197 MW.
The minimum capacity reserve available is 1012 MW.
[2.] From 2130 hrs 19/05/2026 to 2200 hrs 19/05/2026.
The forecast capacity reserve requirement is 1199 MW.
The minimum capacity reserve available is 1146 MW.
Manager NEM Real Time Operations