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115975POWER SYSTEM EVENTS05/04/2024 06:57:00 PM
Update - Non-credible contingency event - SA region - 25/03/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 25/03/2024
Refer AEMO Electricity Market Notice 115794
At 1736 hrs Torrens Island BC3 275 kV CB was returned to service.
Torrens Island BW3 275 kV CB and Torrens Island - Lefevre 275 kV line previously returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - SA region - 25/03/2024
Refer AEMO Electricity Market Notice 115794
At 1736 hrs Torrens Island BC3 275 kV CB was returned to service.
Torrens Island BW3 275 kV CB and Torrens Island - Lefevre 275 kV line previously returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
115974GENERAL NOTICE09/04/2024 06:18:24 PM
Update - Network Augmentation Commissioned - QLD Region - 09/04/2024
AEMO ELECTRICITY MARKET NOTICE
Update - Network Augmentation Commissioned - QLD Region - 09/04/2024
Refer Market notice: 115957
Guybal Munjan 275 kV Switching Station has been cut into the existing Ross - Chalumbin No.858 275 kV line to form the following circuits:
H93 Guybal Munjan - H32 Chalumbin No.858 275 kV line
H13 Ross - H93 Guybal Munjan No.8916 275 kV line
Manager NEM Real Time Operations
Update - Network Augmentation Commissioned - QLD Region - 09/04/2024
Refer Market notice: 115957
Guybal Munjan 275 kV Switching Station has been cut into the existing Ross - Chalumbin No.858 275 kV line to form the following circuits:
H93 Guybal Munjan - H32 Chalumbin No.858 275 kV line
H13 Ross - H93 Guybal Munjan No.8916 275 kV line
Manager NEM Real Time Operations
115972MARKET INTERVENTION05/04/2024 04:06:18 PM
Update - Direction - SA Region - 03/04/2024
AEMO ELECTRICITY MARKET NOTICE
Update - Direction - SA Region - 03/04/2024
Refer Market Notice 115945
The AEMO intervention event that commenced from interval ending 1405 hrs on 03/04/2024 is continuing.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
Manager NEM Real Time Operations
Update - Direction - SA Region - 03/04/2024
Refer Market Notice 115945
The AEMO intervention event that commenced from interval ending 1405 hrs on 03/04/2024 is continuing.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
Manager NEM Real Time Operations
115969NON-CONFORMANCE05/04/2024 09:05:15 AM
NON-CONFORMANCE Region QLD1 Friday, 5 April 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Friday, 5 April 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 05/04/2024 08:45 to 05/04/2024 09:05
Amount: -49 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Friday, 5 April 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 05/04/2024 08:45 to 05/04/2024 09:05
Amount: -49 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
115968RECLASSIFY CONTINGENCY05/04/2024 01:14:52 AM
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: 05/04/2024 01:14
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 115967
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: 05/04/2024 01:14
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 115967
Auto-generated on behalf of Manager NEM Real Time Operations
115967RECLASSIFY CONTINGENCY05/04/2024 12:11:01 AM
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: 05/04/2024 00:10 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: 05/04/2024 00:10 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
115966RECLASSIFY CONTINGENCY04/04/2024 05:22:18 PM
Cancellation of the Reclassification of a Non Credible Contingency event to a Credible Event - Kareeya Units 1,2,3,4 - Qld Region - 03/04/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the Reclassification of a Non Credible Contingency event to a Credible Event - Kareeya Units 1,2,3 and 4 - Qld Region - 03/04/2024
AEMO considers the trip of the Kareeya Power Station Units 1,2,3 and 4 is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Kareeya Power Station Units 1,2,3 and 4
Cancellation time: 1715 hrs 04/04/2024
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 115949
Manager NEM Real Time Operations
Cancellation of the Reclassification of a Non Credible Contingency event to a Credible Event - Kareeya Units 1,2,3 and 4 - Qld Region - 03/04/2024
AEMO considers the trip of the Kareeya Power Station Units 1,2,3 and 4 is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Kareeya Power Station Units 1,2,3 and 4
Cancellation time: 1715 hrs 04/04/2024
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 115949
Manager NEM Real Time Operations
115965MARKET INTERVENTION04/04/2024 05:29:44 PM
Update - Direction - SA Region - 03/04/2024
AEMO ELECTRICITY MARKET NOTICE
Update - Direction - SA Region - 03/04/2024
Refer Market Notice 115945
The AEMO intervention event that commenced from interval ending 1405 hrs on 03/04/2024 is continuing.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
Manager NEM Real Time Operations
Update - Direction - SA Region - 03/04/2024
Refer Market Notice 115945
The AEMO intervention event that commenced from interval ending 1405 hrs on 03/04/2024 is continuing.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
Manager NEM Real Time Operations
115959SETTLEMENTS RESIDUE04/04/2024 01:30:24 PM
[EventId:202404041330_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 04 April 2024 13:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1330 hrs on 4 April 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 April 2024.
Refer to market notice: 115958
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1330 hrs on 4 April 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1330 hrs on 4 April 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 April 2024.
Refer to market notice: 115958
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1330 hrs on 4 April 2024.
This is an AEMO autogenerated Market Notice.