Market Notices

117389INTER-REGIONAL TRANSFER20/07/2024 02:52:46 PM

Inter-regional transfer limit variation - Armidale Coffs Harbour 96C 132kV LINE - NSW region - 20/07/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale Coffs Harbour 96C 132kV LINE - NSW region - 20/07/2024

At 1422 hrs 20/07/2024 there was an unplanned outage of Armidale Coffs Harbour 96C 132kV LINE.

The following constraint set(s) invoked at 1430 hrs 20/07/2024
N-ARCH_96C

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
117387NON-CONFORMANCE20/07/2024 01:50:15 PM

NON-CONFORMANCE Region QLD1 Saturday, 20 July 2024

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Saturday, 20 July 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: GANGARR1
Duration: 20/07/2024 12:20 to 20/07/2024 13:50
Amount: 60 MW
Constraint: NC-Q_GANGARR1

Auto-generated on behalf of Manager NEM Real Time Operations
     
117381INTER-REGIONAL TRANSFER20/07/2024 01:03:16 PM

Inter-regional transfer limit variation - Mitchell Singleton 95X 132kV LINE- NSW region - 20/07/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Mitchell Singleton 95X 132kV LINE- NSW region - 20/07/2024

At 1117 hrs 20/07/2024 there was an unplanned outage of Mitchell Singleton 95X 132kV LINE.

The following constraint set(s) invoked at 1250 hrs 20/07/2024
N-NIL_RBKU_CLOSED
N-LDTM_82_CL

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
117375INTER-REGIONAL TRANSFER19/07/2024 07:03:12 PM

Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).

AEMO ELECTRICITY MARKET NOTICE

Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).

Refer AEMO Electricity Market Notice 117372

AEMO has been notified that the controls to vary Directlink output are now available.

Constraint set I-CTRL_ISSUE_TE revoked at 1835 hrs.

Manager NEM Real Time Operations
     
117374INTER-REGIONAL TRANSFER19/07/2024 06:01:53 PM

Inter-regional transfer limit variation - Heywood interconnector - SA and Vic regions - 19/07/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Heywood interconnector - SA and Vic regions- 19/07/2024

Refer to reclassification Market notice 117373

The following constraint set(s) invoked at 1740 hrs 19/07/2024
I-SV_250 , I-VS_250

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA

Manager NEM Real Time Operations
     
117373RECLASSIFY CONTINGENCY19/07/2024 05:36:20 PM

Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - South Australia and Victoria regions.

AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely widespread severe weather in the South Australia and Victoria regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.

AEMO has taken the following action(s) to maintain power system security at 1740 hrs 19/07/2024.
Constraint set(s) invoked:
I-SV_250
I-VS_250
Duration: until further notice

Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).

Manager NEM Real Time Operations
     
117372INTER-REGIONAL TRANSFER19/07/2024 04:41:55 PM

Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)

AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.

Constraint set I-CTRL_ISSUE_TE invoked from 1640 hrs.

The constraint set contains equations with the following interconnector on the LHS:

N-Q-MNSP1


Manager NEM Real Time Operations
     
117371INTER-REGIONAL TRANSFER19/07/2024 04:20:09 PM

Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).

AEMO ELECTRICITY MARKET NOTICE

Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).

Refer AEMO Electricity Market Notice 117368

AEMO has been notified that the controls to vary Directlink output are now available.

Constraint set I-CTRL_ISSUE_TE revoked at 1620 hrs.

Manager NEM Real Time Operations
     
117368INTER-REGIONAL TRANSFER19/07/2024 03:24:41 PM

Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)

AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.

Constraint set I-CTRL_ISSUE_TE invoked from 1530 hrs.

The constraint set contains equations with the following interconnector on the LHS:

N-Q-MNSP1


Manager NEM Real Time Operations
     
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