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119356RECLASSIFY CONTINGENCY24/10/2024 06:44:06 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: 24/10/2024 18:44 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: 24/10/2024 18:44 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
119355RECLASSIFY CONTINGENCY24/10/2024 06:39:41 PM
Cancellation of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV 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: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 24/10/2024 18:39
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 119349
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: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 24/10/2024 18:39
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 119349
Auto-generated on behalf of Manager NEM Real Time Operations
119354RECLASSIFY CONTINGENCY24/10/2024 06:30:50 PM
Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 24/10/2024 18:30 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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 24/10/2024 18:30 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
119353RECLASSIFY CONTINGENCY24/10/2024 06:14:44 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: 24/10/2024 18:14
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 119313
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: 24/10/2024 18:14
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 119313
Auto-generated on behalf of Manager NEM Real Time Operations
119350RECLASSIFY CONTINGENCY24/10/2024 05:46:30 PM
Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown 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: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 24/10/2024 17:46 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: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 24/10/2024 17:46 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
119349RECLASSIFY CONTINGENCY24/10/2024 05:35:15 PM
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV 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: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Duration: 24/10/2024 17:35 until further notice
Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
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: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Duration: 24/10/2024 17:35 until further notice
Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Auto-generated on behalf of Manager NEM Real Time Operations
119336MARKET INTERVENTION24/10/2024 04:01:42 PM
Direction - to AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE
Direction - to AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 119198
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN at 1600 hrs 24/10/2024
Type of resource: generating unit
Required actions: Synchronise and follow dispatch targets at 0830 hrs 25/10/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 1630 hrs 25/10/2024.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
Direction - to AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 119198
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN at 1600 hrs 24/10/2024
Type of resource: generating unit
Required actions: Synchronise and follow dispatch targets at 0830 hrs 25/10/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 1630 hrs 25/10/2024.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
119334MARKET INTERVENTION24/10/2024 04:02:52 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Participant Notice 119237
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 1400 hrs 25/10/2024.
The direction update is issued at 1600 hrs 24/10/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Participant Notice 119237
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 1400 hrs 25/10/2024.
The direction update is issued at 1600 hrs 24/10/2024.
Manager NEM Real Time Operations
119313RECLASSIFY CONTINGENCY24/10/2024 02:10:34 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: 24/10/2024 14:10 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: 24/10/2024 14:10 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