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Planned outage of Moorabool - Cressy No 1 500 kV line in the VIC region on 19/06/2025
The Moorabool - Cressy No 1 500 kV line in the Victoria (VIC) region is planned to be out of service from 0600 hrs to 1700 hrs on 19/06/2025.
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM.
During this planned outage:
* Power transfer will be restricted across the VIC - SA interconnector (Heywood interconnector); and
* Post contingent FCAS will be sourced within SA following Separation event.
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
Cancellation - AEMO Intervention Event - SA region 15/06/2025
Cancellation - AEMO Intervention Event - SA region 15/06/2025
Refer to Market Notice 127557
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs on 16/06/2025.
Manager NEM Real Time Operations
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 127558
Direction is cancelled from: 1500 hrs 16/06/2025
Manager NEM Real Time Operations
[EventId:202506161145_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 16 June 2025 11:45
Issued by Australian Energy Market Operator Ltd at 1145 hrs on 16 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 16 June 2025.
Refer to market notice: 127594
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 1145 hrs on 16 June 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202506161105_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 16 June 2025 11:05
Issued by Australian Energy Market Operator Ltd at 1105 hrs on 16 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 16 June 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 1105 hrs on 16 June 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.
[EventId:202506161030_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 16 June 2025 10:30
Issued by Australian Energy Market Operator Ltd at 1030 hrs on 16 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 16 June 2025.
Refer to market notice: 127578
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 1030 hrs on 16 June 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202506160935_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 16 June 2025 09:35
Issued by Australian Energy Market Operator Ltd at 0935 hrs on 16 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 16 June 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 0935 hrs on 16 June 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.
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 16/06/2025
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 16/06/2025
Refer Market Notice 127570
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 0840 hrs 16/06/2025.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2230 hrs 16/06/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations