Market Notices

112430RECLASSIFY CONTINGENCY17/12/2023 01:35:35 AM

Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin No.857 275 kV line and Ross - Chalumbin No.858 275 kV 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: Ross - Chalumbin No.857 275 kV and Ross - Chalumbin No.858 275 kV

Duration: 17/12/2023 01:35 until further notice

Constraint set(s) invoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Auto-generated on behalf of Manager NEM Real Time Operations
112428RESERVE NOTICE16/12/2023 03:40:28 PM

STPASA - Update to the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 19/12/2023

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 112385 has been updated at 1500 hrs 16/12/2023 to the following:

From 1200 hrs to 1330 hrs 19/12/2023.
The forecast capacity reserve requirement is 1370 MW.
The minimum capacity reserve available is 1335 MW.



Manager NEM RTO
112425RECLASSIFY CONTINGENCY16/12/2023 02:49:35 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: 16/12/2023 14:49

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 112405

Auto-generated on behalf of Manager NEM Real Time Operations
112405RECLASSIFY CONTINGENCY16/12/2023 11:45:55 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: 16/12/2023 11:45 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
112395RECLASSIFY CONTINGENCY15/12/2023 09:59:35 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: 15/12/2023 21:59

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 112379

Auto-generated on behalf of Manager NEM Real Time Operations
112391RECLASSIFY CONTINGENCY15/12/2023 04:30:36 PM

Cancellation of a Reclassification of a Non-Credible Contingency Event: Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer in QLD Region

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.

Based on the advice from the asset owner, AEMO considers the trip of the Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.

Region: QLD

Elements: Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer.

Cancellation time: 1630 hrs 15/12/2023

Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 109794

Manager NEM Real Time Operations
112385RESERVE NOTICE15/12/2023 03:07:23 PM

STPASA - Update to the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 19/12/2023

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 112327 has been updated at 1400 hrs 15/12/2023 to the following:

From 1230 hrs to 1430 hrs 19/12/2023.
The forecast capacity reserve requirement is 1370 MW.
The minimum capacity reserve available is 798 MW.

From 1600 hrs to 2030 hrs 19/12/2023.
The forecast capacity reserve requirement is 1415 MW.
The minimum capacity reserve available is 1314 MW.

AEMO Operations
112379RECLASSIFY CONTINGENCY15/12/2023 12:58:05 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: 15/12/2023 12:58 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
112375RECLASSIFY CONTINGENCY15/12/2023 11:59:23 AM

Cancellation of a Non-Credible Contingency Event: Edmonton - Woree 7284 132 kV Line, Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line in QLD Region

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.

Based on the advice from the asset owner, AEMO considers the trip of the Edmonton - Woree 7284 132 kV Line , Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.

Region: QLD

Elements: Edmonton - Woree 7284 132 kV Line, Barron Gorge - Kamerunga 7143 132 kV Line and the Barron Gorge - Kamerunga 7184 132 kV Line

Cancellation time: 1200 hrs 15/12/2023

Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 102439

Manager NEM Real Time Operations
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