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126472NON-CONFORMANCE10/04/2025 03:35:16 PM
NON-CONFORMANCE Region NSW1 Thursday, 10 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Thursday, 10 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: QBYNB1
Duration: 10/04/2025 15:25 to 10/04/2025 15:35
Amount: -9 MW
Constraint: NC-N_QBYNB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Thursday, 10 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: QBYNB1
Duration: 10/04/2025 15:25 to 10/04/2025 15:35
Amount: -9 MW
Constraint: NC-N_QBYNB1
Auto-generated on behalf of Manager NEM Real Time Operations
126465INTER-REGIONAL TRANSFER10/04/2025 10:00:31 AM
Update - Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
AEMO ELECTRICITY MARKET NOTICE
Update - Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
Refer to Market Notice 126464.
The cause of the unplanned outage of APD - Heywood - Mortlake 500 kV line in the VIC region has been identified and resolved. The outage has been completed and the APD - Heywood - Mortlake 500 kV line returned to service at 0948 hrs 10/04/2025
Constraint set(s) revoked: V-HYMO
Manager NEM Real Time Operations
Update - Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
Refer to Market Notice 126464.
The cause of the unplanned outage of APD - Heywood - Mortlake 500 kV line in the VIC region has been identified and resolved. The outage has been completed and the APD - Heywood - Mortlake 500 kV line returned to service at 0948 hrs 10/04/2025
Constraint set(s) revoked: V-HYMO
Manager NEM Real Time Operations
126464INTER-REGIONAL TRANSFER10/04/2025 08:49:30 AM
Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
At 0825 hrs 10/04/2025 there was an unplanned outage of the APD - Heywood - Mortlake 500 kV line.
The following constraint set(s) invoked at 0835 hrs 10/04/2025
V-HYMO
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025
At 0825 hrs 10/04/2025 there was an unplanned outage of the APD - Heywood - Mortlake 500 kV line.
The following constraint set(s) invoked at 0835 hrs 10/04/2025
V-HYMO
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
126462NON-CONFORMANCE09/04/2025 07:05:12 PM
NON-CONFORMANCE Region NSW1 Wednesday, 9 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Wednesday, 9 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP6
Duration: 09/04/2025 19:00 to 09/04/2025 19:05
Amount: -38 MW
Constraint: NC-N_VP6
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Wednesday, 9 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP6
Duration: 09/04/2025 19:00 to 09/04/2025 19:05
Amount: -38 MW
Constraint: NC-N_VP6
Auto-generated on behalf of Manager NEM Real Time Operations
126414NON-CONFORMANCE07/04/2025 08:05:13 AM
NON-CONFORMANCE Region QLD1 Monday, 7 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Monday, 7 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 07/04/2025 07:55 to 07/04/2025 08:05
Amount: 16 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Monday, 7 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 07/04/2025 07:55 to 07/04/2025 08:05
Amount: 16 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
126381RECLASSIFY CONTINGENCY06/04/2025 01:59:40 PM
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: 06/04/2025 13:59
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 126379
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: 06/04/2025 13:59
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 126379
Auto-generated on behalf of Manager NEM Real Time Operations
126380NON-CONFORMANCE06/04/2025 12:55:19 PM
NON-CONFORMANCE Region SA1 Sunday, 6 April 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE SA1 Region Sunday, 6 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HPR1
Duration: 06/04/2025 12:40 to 06/04/2025 12:55
Amount: 16 MW
Constraint: NC-S_HPR1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE SA1 Region Sunday, 6 April 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HPR1
Duration: 06/04/2025 12:40 to 06/04/2025 12:55
Amount: 16 MW
Constraint: NC-S_HPR1
Auto-generated on behalf of Manager NEM Real Time Operations
126379RECLASSIFY CONTINGENCY06/04/2025 12:55:10 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: 06/04/2025 12:55 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: 06/04/2025 12:55 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
126376RECLASSIFY CONTINGENCY06/04/2025 02:19:40 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: 06/04/2025 02:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 126375
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: 06/04/2025 02:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 126375
Auto-generated on behalf of Manager NEM Real Time Operations