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122447MARKET INTERVENTION24/12/2024 11:31:06 AM
Update - Foreseeable AEMO intervention in SA region
AEMO ELECTRICITY MARKET NOTICE
Update - Foreseeable AEMO intervention in SA region
Refer AEMO Electricity Market Notice 122446
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2200 hrs 24/12/2024.
The foreseeable circumstance requiring the need for intervention is Voltage.
AEMO estimates that, in the absence of sufficient market response by 1400 hrs 24/12/2024, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
Update - Foreseeable AEMO intervention in SA region
Refer AEMO Electricity Market Notice 122446
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2200 hrs 24/12/2024.
The foreseeable circumstance requiring the need for intervention is Voltage.
AEMO estimates that, in the absence of sufficient market response by 1400 hrs 24/12/2024, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
122446MARKET INTERVENTION24/12/2024 10:57:43 AM
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2200 hrs 24/12/2024.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2200 hrs 24/12/2024.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
122444POWER SYSTEM EVENTS23/12/2024 08:40:02 PM
Update - Non-credible contingency event - SA region - 23/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 23/12/2024
Refer AEMO Electricity Market Notice 122442
At 2036 hrs the Happy Valley - Morphett Vale East and the Morphett Vale - Cherry Gardens 275kV lines were 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 - 23/12/2024
Refer AEMO Electricity Market Notice 122442
At 2036 hrs the Happy Valley - Morphett Vale East and the Morphett Vale - Cherry Gardens 275kV lines were 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
122442POWER SYSTEM EVENTS23/12/2024 04:44:55 PM
Non-credible contingency event - SA region - 23/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 23/12/2024
At 1632 hrs the Happy Valley - Morphett Vale East 275kV Line and the Morphett Vale - Cherry Gardens 275kV line tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - SA region - 23/12/2024
At 1632 hrs the Happy Valley - Morphett Vale East 275kV Line and the Morphett Vale - Cherry Gardens 275kV line tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
122441MARKET INTERVENTION23/12/2024 04:34:00 PM
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 122408
The TORRB3 TORRENS ISLAN direction is now expected to stay in place until 1630 hrs 24/12/2024.
The direction update is issued at 1630 hrs 23/12/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 122408
The TORRB3 TORRENS ISLAN direction is now expected to stay in place until 1630 hrs 24/12/2024.
The direction update is issued at 1630 hrs 23/12/2024.
Manager NEM Real Time Operations
122440MARKET INTERVENTION23/12/2024 04:32:51 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 122407
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1400 hrs 24/12/2024.
The direction update is issued at 1630 hrs 23/12/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 122407
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1400 hrs 24/12/2024.
The direction update is issued at 1630 hrs 23/12/2024.
Manager NEM Real Time Operations
122435NON-CONFORMANCE23/12/2024 09:40:24 AM
NON-CONFORMANCE Region QLD1 Monday, 23 December 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Monday, 23 December 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 23/12/2024 09:25 to 23/12/2024 09:40
Amount: 36 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Monday, 23 December 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 23/12/2024 09:25 to 23/12/2024 09:40
Amount: 36 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
122434RECLASSIFY CONTINGENCY23/12/2024 05:39:21 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: 23/12/2024 05:39
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 122428
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: 23/12/2024 05:39
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 122428
Auto-generated on behalf of Manager NEM Real Time Operations
122433RECLASSIFY CONTINGENCY23/12/2024 04:22:36 AM
Cancellation of a Non-Credible Contingency Event: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines in QLD 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: QLD
Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines
Cancellation time: 23/12/2024 04:20
Constraint set(s) invoked: Nil
Refer AEMO Electricity Market Notice 122409
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: QLD
Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines
Cancellation time: 23/12/2024 04:20
Constraint set(s) invoked: Nil
Refer AEMO Electricity Market Notice 122409
Manager NEM Real Time Operations