Market Notices

120208RECLASSIFY CONTINGENCY10/11/2024 02:25:33 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: 10/11/2024 14:25 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


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120202SETTLEMENTS RESIDUE10/11/2024 02:01:40 PM

[EventId:202411101400_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 10 November 2024 14:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1400 hrs on 10 November 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 10 November 2024.

Refer to market notice: 120200

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 1400 hrs on 10 November 2024.

This is an AEMO autogenerated Market Notice.
     
120200SETTLEMENTS RESIDUE10/11/2024 01:05:27 PM

[EventId:202411101305_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 10 November 2024 13:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1305 hrs on 10 November 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 10 November 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 1305 hrs on 10 November 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.
     
120199SETTLEMENTS RESIDUE10/11/2024 12:00:28 PM

[EventId:202411101200_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 10 November 2024 12:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1200 hrs on 10 November 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 10 November 2024.

Refer to market notice: 120198

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 1200 hrs on 10 November 2024.

This is an AEMO autogenerated Market Notice.
     
120198SETTLEMENTS RESIDUE10/11/2024 10:40:38 AM

[EventId:202411101040_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 10 November 2024 10:40

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1040 hrs on 10 November 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 10 November 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 1040 hrs on 10 November 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.
     
120178SETTLEMENTS RESIDUE08/11/2024 09:15:16 PM

[EventId:202411082115_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 08 November 2024 21:15

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 2115 hrs on 8 November 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 November 2024.

Refer to market notice: 120165

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 2115 hrs on 8 November 2024.

This is an AEMO autogenerated Market Notice.
     
120165SETTLEMENTS RESIDUE08/11/2024 05:05:17 PM

[EventId:202411081705_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 08 November 2024 17:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1705 hrs on 8 November 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 November 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 1705 hrs on 8 November 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.
     
120146SETTLEMENTS RESIDUE08/11/2024 02:30:30 PM

[EventId:202411081430_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 08 November 2024 14:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 8 November 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 November 2024.

Refer to market notice: 120143

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 8 November 2024.

This is an AEMO autogenerated Market Notice.
     
120145RECLASSIFY CONTINGENCY08/11/2024 02:09:26 PM

Cancellation of a Non-Credible Contingency Event: Gordon - Chapel St No 1 220kV line and Gordon - Chapel St No 2 220kV line in TAS1 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: TAS1

Lines: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV

Cancellation time: 08/11/2024 14:09

Constraint set(s) revoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
T-CSGO_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 120144

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