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Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
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: 06/06/2024 13:34
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 116902
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
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: 06/06/2024 12:30 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
Inter-regional transfer limit variation - Tarrone K1 500/132 kV Transformer - VIC region - 06/06/2024
Inter-regional transfer limit variation - Tarrone K1 500/132 kV Transformer - VIC region - 06/06/2024
At 1058 hrs 06/06/2024 there was an unplanned outage of Tarrone K1 500/132 kV Transformer.
The following constraint set(s) invoked at 1115 hrs 06/06/2024
V-TRTS_BUS_CB_500
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 0805 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations
Network Augmentation Commissioned - QLD Region - 05/06/2024
Network Augmentation Commissioned - QLD Region - 05/06/2024
H20 Broadsound 275 kV Bus Reactor 1 (150 MVAr) has been commissioned as at 1043 hrs.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink .
The following constraint set was invoked at 2135 hrs 04/06/2024
N-MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink .
The following constraint set was invoked at 1945 hrs 04/06/2024
N-MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
[EventId:202406041900_confirmed] Prices for interval 04-Jun-2024 19:00 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 4 June 2024
PRICES ARE NOW CONFIRMED for trading interval 04-Jun-2024 19:00.
In accordance with Market Notice 116890 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202406041855_confirmed] Prices for interval 04-Jun-2024 18:55 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 4 June 2024
PRICES ARE NOW CONFIRMED for trading interval 04-Jun-2024 18:55.
In accordance with Market Notice 116889 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.