Market Notices

112925RECLASSIFY CONTINGENCY30/12/2023 04:27:15 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: 30/12/2023 16:27 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
112922RECLASSIFY CONTINGENCY30/12/2023 03:12:44 PM

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: 30/12/2023 15:12 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
112913RECLASSIFY CONTINGENCY30/12/2023 04:43:14 PM

Cancellation of the reclassification of a Non-Credible Contingency Event: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers in Qld Region due to lighting

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the 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 elements. Accordingly its classification has reverted to a non-credible contingency event.

Region: QLD

Elements: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers

Cancellation time: 1645 hrs 30/12/2023
Constraint set(s) revoked: Q-MR_TX2_3_N-2

Refer AEMO Electricity Market Notice 112911

Manager NEM Real Time Operations
112911RECLASSIFY CONTINGENCY30/12/2023 09:09:04 AM

Reclassification of a Non-Credible Contingency Event: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers in Qld Region due to lighting

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to lightning.
AEMO considers the simultaneous trip of the following elements to now be reasonably possible. Accordingly AEMO has reclassified it as a non-credible contingency event.

Region: QLD1
Elements: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers
Duration: 30/12/2023 08:50 until further notice
Constraint set(s) invoked: Q-MR_TX2_3_N-2
Constraint set contains the following interconnector(s) on the left hand side : Nil


Manager NEM Real Time Operations
112910RECLASSIFY CONTINGENCY29/12/2023 08:29:30 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: 29/12/2023 20:29

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 112908

Auto-generated on behalf of Manager NEM Real Time Operations
112909RECLASSIFY CONTINGENCY29/12/2023 07:54:30 PM

Cancellation of a Non-Credible Contingency Event: Collinsville - Stoney Creek 7306 132KV LINE line and Collinsville - Newlands 7121 132KV LINE line in QLD1 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: QLD1

Lines: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE

Cancellation time: 29/12/2023 19:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 112881

Auto-generated on behalf of Manager NEM Real Time Operations
112908RECLASSIFY CONTINGENCY29/12/2023 07:23:55 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: 29/12/2023 19:23 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
112907RECLASSIFY CONTINGENCY29/12/2023 07:09:30 PM

Cancellation of a Non-Credible Contingency Event: Collinsville North - Proserpine No.7125 132 kV line and Collinsville North - Proserpine No.7126 132 kV line in QLD1 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: QLD1

Lines: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Cancellation time: 29/12/2023 19:09

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 112889

Auto-generated on behalf of Manager NEM Real Time Operations
112906PRICES UNCHANGED29/12/2023 06:39:39 PM

[EventId:202312291810_confirmed] Prices for interval 29-Dec-2023 18:10 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1835 hrs on 29 December 2023

PRICES ARE NOW CONFIRMED for trading interval 29-Dec-2023 18:10.

In accordance with Market Notice 112894 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
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