Market Notices

117888SETTLEMENTS RESIDUE27/08/2024 03:30:23 PM

[EventId:202408271530_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 27 August 2024 15:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1530 hrs on 27 August 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 27 August 2024.

Refer to market notice: 117877

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

The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1530 hrs on 27 August 2024.

This is an AEMO autogenerated Market Notice.
     
117877SETTLEMENTS RESIDUE27/08/2024 02:37:01 PM

[EventId:202408271435_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 27 August 2024 14:35

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1435 hrs on 27 August 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 27 August 2024.

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

The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1435 hrs on 27 August 2024.

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.
     
117848SETTLEMENTS RESIDUE27/08/2024 12:30:27 PM

[EventId:202408271230_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 27 August 2024 12:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1230 hrs on 27 August 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 27 August 2024.

Refer to market notice: 117834

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

The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1230 hrs on 27 August 2024.

This is an AEMO autogenerated Market Notice.
     
117834SETTLEMENTS RESIDUE27/08/2024 11:36:54 AM

[EventId:202408271135_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 27 August 2024 11:35

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1135 hrs on 27 August 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 27 August 2024.

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

The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1135 hrs on 27 August 2024.

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.
     
117818RECLASSIFY CONTINGENCY27/08/2024 05:36:33 AM

Reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

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: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Duration: 0530 hrs 27 Aug 2024 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
     
117817RECLASSIFY CONTINGENCY26/08/2024 01:57:09 PM

Cancellation of the reclassification of a Non-Credible Contingency Event: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a Non-Credible Contingency Event: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Refer AEMO Electricity Market Notice 117212

AEMO considers the simultaneous trip of the following elements no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW

Elements: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Cancellation time:: 1400 hrs 26/08/2024
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
     
117807RECLASSIFY CONTINGENCY26/08/2024 03:44:15 AM

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: 26/08/2024 03:44

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117805

Auto-generated on behalf of Manager NEM Real Time Operations
     
117805RECLASSIFY CONTINGENCY26/08/2024 02:41:50 AM

Reclassification 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

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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 26/08/2024 02:41 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
117804RECLASSIFY CONTINGENCY26/08/2024 02:34:21 AM

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: 26/08/2024 02:34

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 117802

Auto-generated on behalf of Manager NEM Real Time Operations
     
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