Market Notices

112189RECLASSIFY CONTINGENCY11/12/2023 04:58:34 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: 11/12/2023 16:58 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
112181RECLASSIFY CONTINGENCY11/12/2023 02:46:31 PM

Update - Non-credible contingency event - SA region - 11/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 11/12/2023

Refer AEMO Electricity Market Notice 112170

Region: SA

At 0444 hrs the Mintaro - Waterloo 132 kV Line tripped and the Clare North - Mintaro 132 kV Line tripped at the Mintaro end only.

At 1413 hrs the Clare North - Mintaro 132 kV Line was returned to service (RTS)

The following constraint set(s) invoked:
S-X-MNWT+CB

The following constraint set(s) revoked:
S-BR_MN+MN_WT

This constraint set(s) contains equations with the following interconnectors on the LHS:
V-S-MNSP1


Refer to the AEMO Network Outage Scheduler for further information.


Manager NEM Real Time Operations
112170RECLASSIFY CONTINGENCY11/12/2023 07:44:18 AM

Update - Non-credible contingency event - SA region - 11/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 11/12/2023

Refer AEMO Electricity Market Notice 112165

Region: SA

The following constraint set(s) invoked:
Initially S-MNWT and S-MN_0 then replaced with S-BR_MN+MN_WT

This constraint set(s) contains equations with the following interconnectors on the LHS:
V-S-MNSP1


Refer to the AEMO Network Outage Scheduler for further information.


Manager NEM Real Time Operations
112161RECLASSIFY CONTINGENCY10/12/2023 03:45:45 PM

Reclassification of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

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: SA

Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines

Duration: 10/12/2023 15:45 hrs until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
112156RECLASSIFY CONTINGENCY10/12/2023 12:30:18 PM

Reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

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: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Duration: 10/12/2023 12:30 hrs until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
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
112154RESERVE NOTICE09/12/2023 06:50:27 PM

Cancellation of Actual (LOR1) condition in the NSW region - 09/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the NSW region - 09/12/2023

The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.112137 is cancelled at 1850 hrs 09/12/2023.

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.
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