Market Notices

112178MARKET INTERVENTION11/12/2023 02:00:57 PM

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 08/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 08/12/2023

Refer Market Notice 112159

The AEMO Intervention Event and all associated directions are cancelled from 1400 hrs 11/12/2023

Manager NEM Real Time Operations
112176MARKET INTERVENTION11/12/2023 12:46:58 PM

Possible intervention to manage power system security in SA Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA Region

The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 12/12/2023 will be inadequate to maintain a secure operating state in SA.

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
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
112159MARKET INTERVENTION10/12/2023 05:05:58 PM

Update - Direction - SA Region - 08/12/2023

AEMO ELECTRICITY MARKET NOTICE

Update - Direction - SA Region - 08/12/2023

Refer Market Notice 112113

The AEMO intervention event that commenced from interval ending 1635 hrs on 08/12/2023 is continuing.

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.

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
112138MARKET INTERVENTION09/12/2023 05:37:54 PM

Update - Direction - SA Region - 08/12/2023

AEMO ELECTRICITY MARKET NOTICE

Update - Direction - SA Region - 08/12/2023

Refer Market Notice 112113

The AEMO intervention event that commenced from interval ending 1635 hrs on 08/12/2023 is continuing.

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.

Manager NEM Real Time Operations
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
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