Market Notices

AEMO ELECTRICITY MARKET NOTICE

Cancellation- Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 11/06/2025

Refer AEMO Electricity Market Notice 127501

In order to maintain the power system in a secure operating state in the NSW region, AEMO invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until 1810 hrs.

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

N-Q-MNSP1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until further notice.

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

N-Q-MNSP1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Collector - Yass (3L) 330kV line - NSW region - 11/06/2025

A planned outage of Collector - Yass (3L) 330kV line in the NSW region was scheduled from 0700 hrs 10/06/2025 to 1500 hrs 16/06/2025.

The outage has been completed and Collector - Yass (3L) 330kV line returned to service at 1611 hrs 11/06/2025

Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Middle Ridge - Greenbank (8848) 275 kV LINE - QLD region - 10/06/2025

At 1000 hrs 10/06/2025 there was a short notice outage of Middle Ridge - Greenbank (8848) 275 kV LINE.

The following constraint set(s) invoked at 1030 hrs 10/06/2025
Q-MRGB_8848_8849

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

AEMO ELECTRICITY MARKET NOTICE

A network augmentation has been commissioned in the NSW region at 2350 hrs 07/06/2025 as follows:

Culcairn Solar Farm substation has been cut into the existing Walla Walla - Wagga 6Y 330 kV Transmission Line to form the following circuits:

Culcairn - Walla Walla 6Y 330 kV Transmission Line
Walla Walla - Wagga 3G 330 kV Transmission Line

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation Inter-Regional Transfer limit variation - Murraylink control unavailable (SA Region)

Refer AEMO Electricity Market Notice 127439

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

Constraint set I-CTRL_ISSUE_ML revoked at 1150 hrs.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

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

Refer AEMO Electricity Market Notice 127438

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

Constraint set I-CTRL_ISSUE_TE revoked at 1150 hrs.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Murraylink control unavailable (SA Region)

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

Constraint set I-CTRL_ISSUE_ML invoked from 0920 hrs.

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

V-S-MNSP1


Manager NEM Real Time Operations

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 0855 hrs.

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

N-Q-MNSP1


Manager NEM Real Time Operations