Market Notices

116734INTER-REGIONAL TRANSFER21/05/2024 02:51:33 AM

Inter-Regional Transfer limit variation - Basslink 21/05/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Basslink

There has been an unplanned outage of the Basslink interconnector at 0235 hrs

The following constraint set was invoked at 0240 hrs 21/05/2024

I-BL_ZERO

The constraint set contains the following interconnector on the left hand side.

T-V-MNSP1

Manager NEM Real Time Operations
     
116732SETTLEMENTS RESIDUE20/05/2024 06:30:21 PM

[EventId:202405201830_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 20 May 2024 18:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1830 hrs on 20 May 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 May 2024.

Refer to market notice: 116731

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 1830 hrs on 20 May 2024.

This is an AEMO autogenerated Market Notice.
     
116731SETTLEMENTS RESIDUE20/05/2024 05:30:23 PM

[EventId:202405201730_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 20 May 2024 17:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1730 hrs on 20 May 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 May 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 1730 hrs on 20 May 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.
     
116691RECLASSIFY CONTINGENCY18/05/2024 08:09:51 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: 18/05/2024 20:09

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 116690

Auto-generated on behalf of Manager NEM Real Time Operations
     
116690RECLASSIFY CONTINGENCY18/05/2024 07:05:40 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: 18/05/2024 19:05 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
     
116687INTER-REGIONAL TRANSFER18/05/2024 06:02:12 PM

Inter-regional transfer limit variation - Tamworth - Armidale No. 86 330 kV Line - NSW region - 19/05/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tamworth - Armidale No. 86 330 kV Line - NSW region - 19/05/2024

A planned outage of Tamworth - Armidale No. 86 330 kV Line in the NSW region was scheduled from 0800 hrs 07/05/2024 to 1800 hrs 20/05/2024.

The outage has been rescheduled to be completed by 1200 hrs 19/05/2024.

Constraint set(s) invoked:
N-ARTW_86
N-DM_SVC
N-TW_SVC

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
T-V-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
116686INTER-REGIONAL TRANSFER18/05/2024 06:06:00 PM

Inter-regional transfer limit variation - DAPTO - MARULAN 8 330KV Line- NSW region - 18/05/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - DAPTO - MARULAN 8 330KV Line - NSW region - 18/05/2024

A planned outage of DAPTO - MARULAN 8 330KV Line in the NSW region was scheduled from 0830 hrs 27/04/2024 to 1200 hrs 20/05/2024.

The outage has been completed at 1750 hrs 18/05/2024.

Constraint set(s) revoked: N-DTMN_8_15M, N-X_3L+8

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,
NSW1-QLD1,
V-S-MNSP1
VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
116682RECLASSIFY CONTINGENCY18/05/2024 04:49:50 PM

Cancellation 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

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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV

Cancellation time: 18/05/2024 16:49

Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1


Refer AEMO Electricity Market Notice 116676

Auto-generated on behalf of Manager NEM Real Time Operations
     
116676RECLASSIFY CONTINGENCY18/05/2024 01:44:56 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: 18/05/2024 13:44 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


Auto-generated on behalf of Manager NEM Real Time Operations
     
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