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128417RECLASSIFY CONTINGENCY01/08/2025 03:06:50 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 01/08/2025 15:06 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 01/08/2025 15:06 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
128415NON-CONFORMANCE01/08/2025 02:40:13 PM
NON-CONFORMANCE Region NSW1 Friday, 1 August 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Friday, 1 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEVERSF1
Duration: 01/08/2025 14:25 to 01/08/2025 14:40
Amount: 26 MW
Constraint: NC-N_NEVERSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Friday, 1 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEVERSF1
Duration: 01/08/2025 14:25 to 01/08/2025 14:40
Amount: 26 MW
Constraint: NC-N_NEVERSF1
Auto-generated on behalf of Manager NEM Real Time Operations
128414RECLASSIFY CONTINGENCY01/08/2025 02:09:50 PM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 01/08/2025 14:09
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 128412
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 01/08/2025 14:09
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 128412
Auto-generated on behalf of Manager NEM Real Time Operations
128412RECLASSIFY CONTINGENCY01/08/2025 01:06:50 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 01/08/2025 13:06 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 01/08/2025 13:06 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
128410NON-CONFORMANCE31/07/2025 03:35:22 PM
NON-CONFORMANCE Region NSW1 Thursday, 31 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Thursday, 31 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HUNTER1
Duration: 31/07/2025 15:05 to 31/07/2025 15:35
Amount: -6 MW
Constraint: NC-N_HUNTER1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Thursday, 31 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HUNTER1
Duration: 31/07/2025 15:05 to 31/07/2025 15:35
Amount: -6 MW
Constraint: NC-N_HUNTER1
Auto-generated on behalf of Manager NEM Real Time Operations
128406RECLASSIFY CONTINGENCY30/07/2025 10:02:13 AM
Cancellation: Reclassification of non-credible contingency event - QLD region - 22/02/2021
AEMO ELECTRICITY MARKET NOTICE.
Cancellation: Reclassification of non-credible contingency event - QLD region - 22/02/2021
Refer AEMO Electricity Market Notice 82959
Elements: South Pine SVC and the Mount England - Wivenhoe Power Station No 824 275 kV line
AEMO considers the occurrence of a non-credible contingency event is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1000 hrs 30/07/2025.
Manager NEM Real Time Operations
Cancellation: Reclassification of non-credible contingency event - QLD region - 22/02/2021
Refer AEMO Electricity Market Notice 82959
Elements: South Pine SVC and the Mount England - Wivenhoe Power Station No 824 275 kV line
AEMO considers the occurrence of a non-credible contingency event is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1000 hrs 30/07/2025.
Manager NEM Real Time Operations
128386MARKET INTERVENTION28/07/2025 06:26:22 AM
Cancellation - AEMO Intervention Event - SA region 25/07/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - SA region 25/07/2025
Refer to Market Notice 128310
The AEMO Intervention Event and all associated directions are cancelled from 0630 hrs on 28/07/2025.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - SA region 25/07/2025
Refer to Market Notice 128310
The AEMO Intervention Event and all associated directions are cancelled from 0630 hrs on 28/07/2025.
Manager NEM Real Time Operations
128385MARKET INTERVENTION28/07/2025 06:26:22 AM
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128380
Direction is cancelled from: 0630 hrs 28/07/2025
Manager NEM Real Time Operations
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128380
Direction is cancelled from: 0630 hrs 28/07/2025
Manager NEM Real Time Operations
128384RECLASSIFY CONTINGENCY27/07/2025 07:29:30 PM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 27/07/2025 19:29
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 128383
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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 27/07/2025 19:29
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 128383
Auto-generated on behalf of Manager NEM Real Time Operations