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127626GENERAL NOTICE17/06/2025 01:30:24 PM
Planned outage of Moorabool - Cressy No 1 500 kV line in the VIC region on 19/06/2025
AEMO ELECTRICITY MARKET NOTICE
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
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
127610RECLASSIFY CONTINGENCY17/06/2025 06:54:10 AM
Cancellation of a Non-Credible Contingency Event: Kamerunga - Barron Gorge 7184 132kV line and Kamerunga - Barron Gorge 7143 132kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Kamerunga - Barron Gorge 7184 132kV and Kamerunga - Barron Gorge 7143 132kV
Cancellation time: 17/06/2025 06:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127609
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Kamerunga - Barron Gorge 7184 132kV and Kamerunga - Barron Gorge 7143 132kV
Cancellation time: 17/06/2025 06:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127609
Auto-generated on behalf of Manager NEM Real Time Operations
127609RECLASSIFY CONTINGENCY17/06/2025 04:52:05 AM
Reclassification of a Non-Credible Contingency Event: Kamerunga - Barron Gorge 7184 132kV line and Kamerunga - Barron Gorge 7143 132kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Kamerunga - Barron Gorge 7184 132kV and Kamerunga - Barron Gorge 7143 132kV
Duration: 17/06/2025 04:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Kamerunga - Barron Gorge 7184 132kV and Kamerunga - Barron Gorge 7143 132kV
Duration: 17/06/2025 04:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
127608RECLASSIFY CONTINGENCY16/06/2025 10:54:10 PM
Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale 1 110kV line and Norwood-Derby-Scottsdale 110kV line in TAS1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS1
Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Cancellation time: 16/06/2025 22:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127607
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS1
Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Cancellation time: 16/06/2025 22:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127607
Auto-generated on behalf of Manager NEM Real Time Operations
127607RECLASSIFY CONTINGENCY16/06/2025 09:52:30 PM
Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale 1 110kV line and Norwood-Derby-Scottsdale 110kV line in TAS1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS1
Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Duration: 16/06/2025 21:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS1
Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV
Duration: 16/06/2025 21:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
127596SETTLEMENTS RESIDUE16/06/2025 11:45:29 AM
[EventId:202506161145_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 16 June 2025 11:45
AEMO ELECTRICITY MARKET NOTICE
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.
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.
127594SETTLEMENTS RESIDUE16/06/2025 11:05:23 AM
[EventId:202506161105_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 16 June 2025 11:05
AEMO ELECTRICITY MARKET NOTICE
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.
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.
127581SETTLEMENTS RESIDUE16/06/2025 10:30:20 AM
[EventId:202506161030_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 16 June 2025 10:30
AEMO ELECTRICITY MARKET NOTICE
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.
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.
127578SETTLEMENTS RESIDUE16/06/2025 09:35:29 AM
[EventId:202506160935_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 16 June 2025 09:35
AEMO ELECTRICITY MARKET NOTICE
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.
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.