Market Notices

112155RECLASSIFY CONTINGENCY09/12/2023 10:59:35 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: 09/12/2023 22:59

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 112136

Auto-generated on behalf of Manager NEM Real Time Operations
112151PRICES UNCHANGED09/12/2023 06:30:50 PM

[EventId:202312091805_confirmed] Prices for interval 09-Dec-2023 18:05 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1825 hrs on 9 December 2023

PRICES ARE NOW CONFIRMED for trading interval 09-Dec-2023 18:05.

In accordance with Market Notice 112141 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.
112150PRICES UNCHANGED09/12/2023 06:29:29 PM

[EventId:202312091825_confirmed] Prices for interval 09-Dec-2023 18:25 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1825 hrs on 9 December 2023

PRICES ARE NOW CONFIRMED for trading interval 09-Dec-2023 18:25.

In accordance with Market Notice 112145 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.
112149PRICES UNCHANGED09/12/2023 06:27:36 PM

[EventId:202312091820_confirmed] Prices for interval 09-Dec-2023 18:20 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1825 hrs on 9 December 2023

PRICES ARE NOW CONFIRMED for trading interval 09-Dec-2023 18:20.

In accordance with Market Notice 112144 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.
112148PRICES UNCHANGED09/12/2023 06:28:31 PM

[EventId:202312091815_confirmed] Prices for interval 09-Dec-2023 18:15 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1825 hrs on 9 December 2023

PRICES ARE NOW CONFIRMED for trading interval 09-Dec-2023 18:15.

In accordance with Market Notice 112143 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.
112147PRICES UNCHANGED09/12/2023 06:26:31 PM

[EventId:202312091810_confirmed] Prices for interval 09-Dec-2023 18:10 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1825 hrs on 9 December 2023

PRICES ARE NOW CONFIRMED for trading interval 09-Dec-2023 18:10.

In accordance with Market Notice 112142 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.
112146PRICES UNCHANGED09/12/2023 06:25:21 PM

[EventId:202312091800_confirmed] Prices for interval 09-Dec-2023 18:00 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1825 hrs on 9 December 2023

PRICES ARE NOW CONFIRMED for trading interval 09-Dec-2023 18:00.

In accordance with Market Notice 112139 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.
112136RECLASSIFY CONTINGENCY09/12/2023 03:57:50 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: 09/12/2023 15:57 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
112131RECLASSIFY CONTINGENCY09/12/2023 01:18:47 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Loss of Sheffield 220 kV switchyard (all 220 kV buses) in Tas due to planned work

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to planned work. AEMO considers the simultaneous trip of the following plant is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.

Region: TAS1

Plant: Sheffield 220 kV switchyard (all 220 kV buses)

Cancellation time: 09/12/2023 13:20 hrs

Constraint set revoked:
T-SH_220_N-2
Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1



Refer AEMO Electricity Market Notice 112089

Manager NEM Real Time Operations
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