Market Notices

117640RECLASSIFY CONTINGENCY11/08/2024 03:42:11 PM

Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 11/08/2024 15:42 until further notice

Constraint set(s) invoked:
NONE

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117638MARKET INTERVENTION11/08/2024 03:59:59 PM

Direction - SA region 11/08/2024

AEMO ELECTRICITY MARKET NOTICE

Direction - SA region 11/08/2024

Refer to Market Notice 117637


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 - TORRB2 TORRENS ISLAN at 1600 hrs 11/08/2024
Type of resource: generating unit
Required actions: remain synchronised and follow dispatch targets at 2230 hrs 11/08/2024
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: 0400 hrs 13/08/2024 / further notice.

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
     
117637MARKET INTERVENTION11/08/2024 03:39:48 PM

Update - Foreseeable AEMO intervention in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Foreseeable AEMO intervention in SA region

Refer AEMO Electricity Market Notice 117634

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2230 hrs 11/08/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.

AEMO estimates that, in the absence of sufficient market response by 1600 hrs 11/08/2024, AEMO may need to intervene by issuing a direction.

Manager NEM Real Time Operations
     
117636MARKET INTERVENTION11/08/2024 04:01:35 PM

Direction - SA region 11/08/2024

AEMO ELECTRICITY MARKET NOTICE

Direction - SA region 11/08/2024

Refer to Market Notice 117637


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 11/08/2024
Type of resource: generating unit
Required actions: remain synchronised and follow dispatch targets at 0030 hrs 12/08/2024
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: 0400 hrs 13/08/2024 / further notice.

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
     
117635RECLASSIFY CONTINGENCY11/08/2024 02:44:50 PM

Reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 kV line in QLD1 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: QLD1

Lines: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV

Duration: 11/08/2024 14:44 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
117634MARKET INTERVENTION11/08/2024 02:26:20 PM

Update - Foreseeable AEMO intervention in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Foreseeable AEMO intervention in SA region

Refer AEMO Electricity Market Notice 117630

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0030 hrs 12/08/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.

AEMO estimates that, in the absence of sufficient market response by 1600 hrs 11/08/2024, AEMO may need to intervene by issuing a direction.

Manager NEM Real Time Operations
     
117633RECLASSIFY CONTINGENCY11/08/2024 02:14:11 PM

Cancellation of a Non-Credible Contingency Event: Ross - Guybal Munjan 8917 275kVline line and Ross - Guybal Munjan 8916 275kV line line in QLD1 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: QLD1

Lines: Ross - Guybal Munjan 8917 275kVline and Ross - Guybal Munjan 8916 275kV line

Cancellation time: 11/08/2024 14:14

Constraint set(s) revoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 117627

Auto-generated on behalf of Manager NEM Real Time Operations
     
117632RECLASSIFY CONTINGENCY11/08/2024 01:39:10 PM

Cancellation of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 kV line in QLD1 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: QLD1

Lines: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV

Cancellation time: 11/08/2024 13:39

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117628

Auto-generated on behalf of Manager NEM Real Time Operations
     
117630MARKET INTERVENTION11/08/2024 01:00:37 PM

Update - Foreseeable AEMO intervention in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Foreseeable AEMO intervention in SA region

Refer AEMO Electricity Market Notice 117629

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0030 hrs 12/08/2024.

The foreseeable circumstance requiring the need for intervention is Voltage.



Manager NEM Real Time Operations
     
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