Market Notices

123605RECLASSIFY CONTINGENCY22/01/2025 08:54:44 PM

Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 22/01/2025 20:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 123586

Auto-generated on behalf of Manager NEM Real Time Operations
     
123604RECLASSIFY CONTINGENCY22/01/2025 08:34:40 PM

Cancellation 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

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: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 22/01/2025 20:34

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 123578

Auto-generated on behalf of Manager NEM Real Time Operations
     
123603RECLASSIFY CONTINGENCY22/01/2025 08:34:40 PM

Cancellation 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

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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 22/01/2025 20:34

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 123577

Auto-generated on behalf of Manager NEM Real Time Operations
     
123600RECLASSIFY CONTINGENCY22/01/2025 07:55:57 PM

Cancellation of a Non-Credible Contingency Event: Guybal Munjan - Chalumbin 857 275kV line line and Guybal Munjan - Chalumbin 858 275kV 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: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line

Cancellation time: 22/01/2025 19:55

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


Refer AEMO Electricity Market Notice 123592

Auto-generated on behalf of Manager NEM Real Time Operations
     
123599RECLASSIFY CONTINGENCY22/01/2025 07:49:44 PM

Cancellation of a Non-Credible Contingency Event: Kamerunga - Barron Gorge 7184 132kV line and Kamerunga - Barron Gorge 7143 132kV 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: Kamerunga - Barron Gorge 7184 132kV and Kamerunga - Barron Gorge 7143 132kV

Cancellation time: 22/01/2025 19:49

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 123583

Auto-generated on behalf of Manager NEM Real Time Operations
     
123596SETTLEMENTS RESIDUE22/01/2025 07:30:28 PM

[EventId:202501221930_NRM_NSW1_QLD1_stopped] NEGRES CONSTRAINT NRM_NSW1_QLD1 ceased operating from 22 January 2025 19:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1930 hrs on 22 January 2025

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to QLD - 22 January 2025.

Refer to market notice: 123591

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to QLD directional interconnector.

The negative residue constraint NRM_NSW1_QLD1 ceased operating at 1930 hrs on 22 January 2025.

This is an AEMO autogenerated Market Notice.
     
123595RECLASSIFY CONTINGENCY22/01/2025 07:24:41 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: 22/01/2025 19:24

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 123584

Auto-generated on behalf of Manager NEM Real Time Operations
     
123592RECLASSIFY CONTINGENCY22/01/2025 06:02:55 PM

Reclassification of a Non-Credible Contingency Event: Guybal Munjan - Chalumbin 857 275kV line line and Guybal Munjan - Chalumbin 858 275kV line 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: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line

Duration: 22/01/2025 18:02 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
     
123591SETTLEMENTS RESIDUE22/01/2025 06:00:29 PM

[EventId:202501221800_NRM_NSW1_QLD1_started] NEGRES CONSTRAINT NRM_NSW1_QLD1 started operating from 22 January 2025 18:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1800 hrs on 22 January 2025

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to QLD - 22 January 2025.

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

The negative residue constraint set NRM_NSW1_QLD1 commenced operating from 1800 hrs on 22 January 2025.

This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1

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


This is an AEMO autogenerated Market Notice.
     
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