Market Notices

117471MARKET INTERVENTION26/07/2024 04:02:22 PM

Direction - SA region 26/07/2024

AEMO ELECTRICITY MARKET NOTICE

Direction - SA region 26/07/2024

Refer to Market Notice 117469


In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).

Direction issued to: AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN at 1600 hrs 26/07/2024
Type of resource: generating unit
Required actions: remain synchronised and follow dispatch targets at 0000 hrs 27/07/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1400 hrs 27/07/2024

AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.

Manager NEM Real Time Operations
     
117470MARKET INTERVENTION26/07/2024 04:00:49 PM

Direction - SA region 26/07/2024

AEMO ELECTRICITY MARKET NOTICE

Direction - SA region 26/07/2024

Refer to Market Notice 117469


In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).

Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN at 1600 hrs 26/07/2024
Type of resource: generating unit
Required actions: synchronise and follow dispatch targets at 0930 hrs 27/07/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1430 hrs 27/07/2024

AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.

Manager NEM Real Time Operations
     
117469MARKET INTERVENTION26/07/2024 03:09:13 PM

Update - Foreseeable AEMO intervention in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Foreseeable AEMO intervention in SA region

Refer AEMO Electricity Market Notice 117465

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0000 hrs 27/07/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.

AEMO estimates that, in the absence of sufficient market response by 1600 hrs 26/07/2024, AEMO may need to intervene by issuing a direction.

Manager NEM Real Time Operations
     
117465MARKET INTERVENTION26/07/2024 01:01:31 PM

Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region

AEMO ELECTRICITY MARKET NOTICE

Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0000 hrs 27/07/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.

Manager NEM Real Time Operations
     
117464MARKET INTERVENTION26/07/2024 12:25:11 PM

Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN

AEMO ELECTRICITY MARKET NOTICE.

Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN

Refer AEMO Electricity Market Notice 117446

The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 1700 hrs 26/07/2024.

The direction update is issued at 1220 hrs 26/07/2024.

Manager NEM Real Time Operations
     
117463MARKET INTERVENTION26/07/2024 12:23:36 PM

Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN

AEMO ELECTRICITY MARKET NOTICE.

Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN

Refer AEMO Electricity Market Notice 117460

The TORRB3 TORRENS ISLAN direction is now expected to stay in place until 1530 hrs 26/07/2024.

The direction update is issued at 1220 hrs 26/07/2024.

Manager NEM Real Time Operations
     
117462RECLASSIFY CONTINGENCY26/07/2024 09:49:26 AM

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: 26/07/2024 09:49

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 117461

Auto-generated on behalf of Manager NEM Real Time Operations
     
117461RECLASSIFY CONTINGENCY26/07/2024 08:45:20 AM

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: 26/07/2024 08:45 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
     
117460MARKET INTERVENTION26/07/2024 06:44:31 AM

Update Direction - SA region 25/07/2024

AEMO ELECTRICITY MARKET NOTICE

Update Direction - SA region 25/07/2024

Refer to Market Notice 117445

In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).

Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN at 0645 hrs 26/07/2024
Type of resource: generating unit
Required actions: synchronise and follow dispatch targets at 0900 hrs 26/07/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1700 hrs 26/07/2024

AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.

Manager NEM Real Time Operations
     
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