Filter by:
Filter by category
Filter by Date
From
To
125646SETTLEMENTS RESIDUE14/03/2025 04:35:26 PM
[EventId:202503141635_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 14 March 2025 16:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 14 March 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 14 March 2025.
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 1635 hrs on 14 March 2025.
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.
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 14 March 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 14 March 2025.
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 1635 hrs on 14 March 2025.
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.
125630RECLASSIFY CONTINGENCY14/03/2025 02:45:40 PM
Reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 kV 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV
Duration: 14/03/2025 14:45 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV
Duration: 14/03/2025 14:45 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
125628RECLASSIFY CONTINGENCY14/03/2025 02:37:05 PM
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: 14/03/2025 14:37 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: 14/03/2025 14:37 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
125626RECLASSIFY CONTINGENCY14/03/2025 01:07:45 PM
Reclassification of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 132kV line 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 14/03/2025 13:07 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 14/03/2025 13:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
125621INTER-REGIONAL TRANSFER14/03/2025 06:03:13 AM
Inter-regional transfer limit variation - Hummocks - Waterloo 132 kV line - SA region - 14/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Hummocks - Waterloo 132 kV line - SA region - 14/03/2025
At 0457 hrs 14/03/2025 there was an unplanned outage of Hummocks - Waterloo 132 kV line.
The following constraint set(s) invoked at 0505 hrs 14/03/2025
S-HUWT
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Hummocks - Waterloo 132 kV line - SA region - 14/03/2025
At 0457 hrs 14/03/2025 there was an unplanned outage of Hummocks - Waterloo 132 kV line.
The following constraint set(s) invoked at 0505 hrs 14/03/2025
S-HUWT
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125620INTER-REGIONAL TRANSFER14/03/2025 06:03:11 AM
Inter-regional transfer limit variation - Hummocks - Bungama 132 kV line - SA region - 14/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Hummocks - Bungama 132 kV line - SA region - 14/03/2025
At 0457 hrs 14/03/2025 there was an unplanned outage of Hummocks - Bungama 132 kV line.
The following constraint set(s) invoked at 0505 hrs 14/03/2025
S-HUBG
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Hummocks - Bungama 132 kV line - SA region - 14/03/2025
At 0457 hrs 14/03/2025 there was an unplanned outage of Hummocks - Bungama 132 kV line.
The following constraint set(s) invoked at 0505 hrs 14/03/2025
S-HUBG
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125618RECLASSIFY CONTINGENCY14/03/2025 04:24:25 AM
Cancellation of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 132kV line 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Cancellation time: 14/03/2025 04:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 125617
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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Cancellation time: 14/03/2025 04:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 125617
Auto-generated on behalf of Manager NEM Real Time Operations
125617RECLASSIFY CONTINGENCY14/03/2025 03:21:45 AM
Reclassification of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 132kV line 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 14/03/2025 03:21 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 14/03/2025 03:21 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
125616RECLASSIFY CONTINGENCY13/03/2025 10:34:25 PM
Cancellation of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 132kV line 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Cancellation time: 13/03/2025 22:34
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 125613
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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Cancellation time: 13/03/2025 22:34
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 125613
Auto-generated on behalf of Manager NEM Real Time Operations