Market Notices

115374RESERVE NOTICE29/02/2024 04:26:50 PM

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 29/02/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 29/02/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1600 hrs.

The Actual LOR1 condition is forecast to exist until 1830 hrs.

The forecast capacity reserve requirement is 1370 MW.
The minimum capacity reserve available is 1001 MW.

Manager NEM Real Time Operations
115373RECLASSIFY CONTINGENCY29/02/2024 04:18:30 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: 29/02/2024 16:18

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 115367

Auto-generated on behalf of Manager NEM Real Time Operations
115372INTER-REGIONAL TRANSFER29/02/2024 04:18:08 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA-BRIS_54F2ABFD_1 from 1610 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

VIC1-NSW1

Manager NEM Real Time Operations
115371RESERVE NOTICE29/02/2024 03:49:22 PM

Cancellation of Actual (LOR1) condition in the NSW region - 29/02/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the NSW region - 29/02/2024

The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.115370 is cancelled at 1545 hrs 29/02/2024.

Manager NEM Real Time Operations
115370RESERVE NOTICE29/02/2024 03:12:55 PM

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 29/02/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 29/02/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1500 hrs.
The Actual LOR1 condition is forecast to exist until 1830 hrs

The capacity reserve requirement is 1360 MW
The minimum capacity reserve available is 1066 MW

Manager NEM Real Time Operations
115369SETTLEMENTS RESIDUE29/02/2024 02:40:34 PM

[EventId:202402291440_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 29 February 2024 14:40

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1440 hrs on 29 February 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 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 1440 hrs on 29 February 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.
115368SETTLEMENTS RESIDUE29/02/2024 02:30:28 PM

[EventId:202402291430_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 February 2024 14:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 29 February 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 February 2024.

Refer to market notice: 115360

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 1430 hrs on 29 February 2024.

This is an AEMO autogenerated Market Notice.
115367RECLASSIFY CONTINGENCY29/02/2024 02:24:25 PM

Reclassification 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

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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Duration: 29/02/2024 14:24 until further notice

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


Auto-generated on behalf of Manager NEM Real Time Operations
115366RECLASSIFY CONTINGENCY29/02/2024 02:24:25 PM

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: 29/02/2024 14:24 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
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