Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Dumaresq No. 1 330kV SVC- NSW region - 28/06/2024

At 1649 hrs 28/06/2024 there was a short notice outage of the Dumaresq No. 1 330kV SVC.

The following constraint set invoked at 1650 hrs 28/06/2024
N-DM_SVC

This constraint set 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

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024

Refer AEMO Electricity Market Notice 117239.

Constraint set CA_SYDS_5590C0E2 revoked 1530 hrs.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Liddell to Tomago 82 330kV Line - NSW region - 28/06/2024

At 1407 hrs 28/06/2024 there was an unplanned outage of Liddell to Tomago 82 330kV Line.

The following constraint set invoked at 1415 hrs 28/06/2024
N-LDTM_82_OPEN

This constraint set 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

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_5590C0E2 from 1355hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

V-S-MNSP1

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 27/06/2024

At 0845 hrs the Sydney West No.1 330 kV SVC tripped during switching for planned outage of Sydney West No.4 330/132 kV transformer.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/06/2024

A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0815 hrs 26/06/2024 to 1930 hrs 26/06/2024.

The outage has been completed and Heywood - South East No 2 275 kV Line returned to service at 1410 hrs 26/06/2024

Constraint set(s) revoked:
I-HYSE
I-VS_050
I-VS+LKB_050

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Hazelwood - South Morang No 1 500 kV Line - VIC region - 25/06/2024

A planned outage of Hazelwood - South Morang No 1 500 kV Line in the VIC region was scheduled from 0800 hrs 25/06/2024 to 1530 hrs 25/06/2024.

The outage has been completed and Hazelwood - South Morang No 1 500 kV Line returned to service at 1016 hrs 25/06/2024

Constraint set(s) revoked: V-HWSM

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 25/06/2024

At 0901 hrs the Sydney West No.1 330 kV SVC tripped during switching for planned outage of Sydney West No.4 330/132 kV transformer.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the NSW region - 20/06/2024

The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.117086 is cancelled at 1930hrs 20/06/2024.

Manager NEM Real Time Operations