Market Notices

115490RECLASSIFY CONTINGENCY04/03/2024 07:04:52 PM

Cancellation of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV

Cancellation time: 04/03/2024 19:04

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 115489

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115489RECLASSIFY CONTINGENCY04/03/2024 04:03:05 PM

Reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV

Duration: 04/03/2024 16:03 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
115488RECLASSIFY CONTINGENCY04/03/2024 03:14:55 PM

Reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV

Duration: 04/03/2024 15:14 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
115487RECLASSIFY CONTINGENCY04/03/2024 03:10:01 PM

Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 132 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Duration: 04/03/2024 15:09 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
115486RECLASSIFY CONTINGENCY04/03/2024 03:10:00 PM

Reclassification of a Non-Credible Contingency Event: Tumoulin - Woree No.877 275 kV line and Chalumbin - Turkinje No.7166 132 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: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV

Duration: 04/03/2024 15:09 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
115477RECLASSIFY CONTINGENCY04/03/2024 12:22:50 PM

Reclassification of a Non-Credible Contingency Event: Middle Ridge No.2 275/110 kV Transformer line and Middle Ridge No.3 275/110 kV Transformer 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: Middle Ridge No.2 275/110 kV Transformer and Middle Ridge No.3 275/110 kV Transformer

Duration: 04/03/2024 12:22 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:
NONE


Auto-generated on behalf of Manager NEM Real Time Operations
115476SETTLEMENTS RESIDUE04/03/2024 11:30:20 AM

[EventId:202403041130_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 04 March 2024 11:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1130 hrs on 4 March 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 March 2024.

Refer to market notice: 115475

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 1130 hrs on 4 March 2024.

This is an AEMO autogenerated Market Notice.
115475SETTLEMENTS RESIDUE04/03/2024 10:05:26 AM

[EventId:202403041005_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 04 March 2024 10:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1005 hrs on 4 March 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 March 2024.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1005 hrs on 4 March 2024.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
115473RECLASSIFY CONTINGENCY03/03/2024 09:19:50 PM

Cancellation of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV 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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Cancellation time: 03/03/2024 21:19

Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


Refer AEMO Electricity Market Notice 115471

Auto-generated on behalf of Manager NEM Real Time Operations
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