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[EventId:202312181825_review] Prices for interval 18-Dec-2023 18:25 are subject to review
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 18 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 18-Dec-2023 18:25.
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.
[EventId:202312181820_review] Prices for interval 18-Dec-2023 18:20 are subject to review
Issued by Australian Energy Market Operator Ltd at 1815 hrs on 18 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 18-Dec-2023 18:20.
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.
[EventId:202312181815_review] Prices for interval 18-Dec-2023 18:15 are subject to review
Issued by Australian Energy Market Operator Ltd at 1810 hrs on 18 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 18-Dec-2023 18:15.
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.
[EventId:202312181810_review] Prices for interval 18-Dec-2023 18:10 are subject to review
Issued by Australian Energy Market Operator Ltd at 1805 hrs on 18 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 18-Dec-2023 18:10.
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.
[EventId:202312181805_review] Prices for interval 18-Dec-2023 18:05 are subject to review
Issued by Australian Energy Market Operator Ltd at 1800 hrs on 18 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 18-Dec-2023 18:05.
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.
Direction - SA region 18/12/2023
Direction - SA region 18/12/2023
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1635 hrs on 18/12/2023.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
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: 18/12/2023 14:27 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
Update - Possible intervention to manage power system security in SA region
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 112482
The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 19/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1630 hrs 18/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 17/12/2023
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 17/12/2023
Refer Market Notice 112469
The AEMO Intervention Event and all associated directions are cancelled from 1230 hrs 18/12/2023
Manager NEM Real Time Operations