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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: 06/12/2024 20:08 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
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: 06/12/2024 18:34
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 121522
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202412061800_confirmed] Prices for interval 06-Dec-2024 18:00 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 6 December 2024
PRICES ARE NOW CONFIRMED for trading interval 06-Dec-2024 18:00.
In accordance with Market Notice 121532 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:202412061820_confirmed] Prices for interval 06-Dec-2024 18:20 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 6 December 2024
PRICES ARE NOW CONFIRMED for trading interval 06-Dec-2024 18:20.
In accordance with Market Notice 121537 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:202412061815_confirmed] Prices for interval 06-Dec-2024 18:15 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 6 December 2024
PRICES ARE NOW CONFIRMED for trading interval 06-Dec-2024 18:15.
In accordance with Market Notice 121536 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:202412061810_confirmed] Prices for interval 06-Dec-2024 18:10 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 6 December 2024
PRICES ARE NOW CONFIRMED for trading interval 06-Dec-2024 18:10.
In accordance with Market Notice 121535 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:202412061805_confirmed] Prices for interval 06-Dec-2024 18:05 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 6 December 2024
PRICES ARE NOW CONFIRMED for trading interval 06-Dec-2024 18:05.
In accordance with Market Notice 121533 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:202412061755_confirmed] Prices for interval 06-Dec-2024 17:55 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 6 December 2024
PRICES ARE NOW CONFIRMED for trading interval 06-Dec-2024 17:55.
In accordance with Market Notice 121531 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.
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 121524
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN at 1615 hrs 06/12/2024
Type of resource: generating unit
Required actions: Synchronise and follow dispatch targets at 0700 hrs 07/12/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 0400 hrs 08/12/2024.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations