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Cancellation of a Non-Credible Contingency Event: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers in SA region 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: SA1
Elements: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers
Cancellation time: 14/12/2023 14:10
Constraint set(s) revoked: S-RBTU+SCON_N-2
Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
Refer AEMO Electricity Market Notice 111818
Manager NEM Real Time Operations
[EventId:202312141130_confirmed] Prices for interval 14-Dec-2023 11:30 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 14 December 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Dec-2023 11:30.
In accordance with Market Notice 112308 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:202312141125_confirmed] Prices for interval 14-Dec-2023 11:25 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 14 December 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Dec-2023 11:25.
In accordance with Market Notice 112307 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:202312141120_confirmed] Prices for interval 14-Dec-2023 11:20 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 14 December 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Dec-2023 11:20.
In accordance with Market Notice 112306 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:202312141115_confirmed] Prices for interval 14-Dec-2023 11:15 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 14 December 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Dec-2023 11:15.
In accordance with Market Notice 112305 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:202312141110_confirmed] Prices for interval 14-Dec-2023 11:10 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 14 December 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Dec-2023 11:10.
In accordance with Market Notice 112304 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:202312141105_confirmed] Prices for interval 14-Dec-2023 11:05 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 14 December 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Dec-2023 11:05.
In accordance with Market Notice 112302 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.
Cancellation - Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region - 14/12/2023
Cancellation - Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region - 14/12/2023
Refer to MN 112295
Based on advice from the asset owner, AEMO no longer considers the simultaneous trip of all the generators at Darling Downs Power Station as a credible contingency event.
Therefore AEMO cancels the reclassification as a credible contingency event from 0935 hrs 14/12/2023.
Constraint set Q-DARLING_DOWNS_N-2 invoked from 0745 hrs 14/12/2023 to 0935 hrs 14/12/2023
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region 14/12/2023
Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region 14/12/2023
Based on advice from the asset owner, AEMO has declared the simultaneous trip of all the generators at Darling Downs Power Station as a credible contingency event.
AEMO considers the simultaneous trip of those generators to now be more likely.
AEMO has reclassified this as a credible contingency event from 0745 hrs 14/12/2023.
To manage power system security constraint set Q-DARLING_DOWNS_N-2 invoked from 0745 hrs 14/12/2023 until further notice.
Manager NEM Real Time Operations