Market Notices

112321RECLASSIFY CONTINGENCY14/12/2023 02:02:47 PM

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

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: 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
112308PRICES SUBJECT TO REVIEW14/12/2023 11:25:24 AM

[EventId:202312141130_review] Prices for interval 14-Dec-2023 11:30 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1125 hrs on 14 December 2023

PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 11:30.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
112307PRICES SUBJECT TO REVIEW14/12/2023 11:20:30 AM

[EventId:202312141125_review] Prices for interval 14-Dec-2023 11:25 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1120 hrs on 14 December 2023

PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 11:25.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
112306PRICES SUBJECT TO REVIEW14/12/2023 11:15:25 AM

[EventId:202312141120_review] Prices for interval 14-Dec-2023 11:20 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1115 hrs on 14 December 2023

PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 11:20.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
112305PRICES SUBJECT TO REVIEW14/12/2023 11:10:24 AM

[EventId:202312141115_review] Prices for interval 14-Dec-2023 11:15 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1110 hrs on 14 December 2023

PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 11:15.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
112304PRICES SUBJECT TO REVIEW14/12/2023 11:05:10 AM

[EventId:202312141110_review] Prices for interval 14-Dec-2023 11:10 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1105 hrs on 14 December 2023

PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 11:10.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
112302PRICES SUBJECT TO REVIEW14/12/2023 11:00:20 AM

[EventId:202312141105_review] Prices for interval 14-Dec-2023 11:05 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1100 hrs on 14 December 2023

PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 11:05.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
112297RECLASSIFY CONTINGENCY14/12/2023 09:41:03 AM

Cancellation - Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region - 14/12/2023

AEMO ELECTRICITY MARKET NOTICE

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
112295RECLASSIFY CONTINGENCY14/12/2023 07:45:16 AM

Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region 14/12/2023

AEMO ELECTRICITY MARKET NOTICE

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
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