Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Dumaresq SVC - NSW region - 12/03/2026

At 1501 hrs 12/03/2026 there was an unplanned outage of Dumaresq SVC.

The following constraint set(s) invoked at 1510 hrs 12/03/2026
N-DM_SVC

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

Inter-regional transfer limit variation - Alcoa Portland A4 500/220 kV transformer - VIC region - 12/03/2026

At 0650 hrs 12/03/2026 there was a short notice outage of Alcoa Portland A4 500/220 kV transformer.

The following constraint set(s) invoked at 0650 hrs 12/03/2026
F-I_ML_APD

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO and APA have been working on better ways to reflect Murraylink transfer capability more accurately during high ambient temperature conditions. APA has supplied AEMO with a real time dynamic rating and AEMO will apply this in new constraint equations to dispatch Murraylink.

At this stage, the constraint equations will only be active in Dispatch timeframe.

The following two constraint equations will be implemented in constraint set V-NIL and S-NIL, at 1000 hrs on Thursday 12th March 2026:

VSML_RAT_LIM_DYN
SVML_RAT_LIM_DYN

For full details on the formulation, the new constraint equations have now been loaded into AEMO's pre-production systems.

Terry Liu
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tamworth 1 330kV SVC - NSW region - 07/03/2026

A planned outage of Tamworth 1 330kV SVC in the NSW region was scheduled from 2031 hrs 03/03/2026 to 1700 hrs 17/04/2026.

The outage has been completed and Tamworth 1 330kV SVC returned to service at 1130 hrs 07/03/2026

Constraint set(s) revoked: N-TW_SVC

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Waterloo - Mintaro line 132 kV - SA region - 06/03/2026

At 1445 hrs 06/03/2026 there was a short notice outage of Waterloo - Mintaro line 132 kV.

The following constraint set(s) invoked at 1445 hrs 06/03/2026
S-X_MNWT+BRMN+CB

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,V-SA

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 - Manage Power System Security in NSW Region - 05/03/2026

Refer market notice 134558

In order to maintain the power system in a secure operating state in the New South Wales region, AEMO has invoked a discretionary constraint to limit the transfer from Qld to NSW.
.
Constraint set I-QN_550 was invoked from 1320 hrs until 1710 hrs

This Constraint Set contains equations with the following interconnector on the LHS;

NSW1 - QLD1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Manage Power System Security in NSW Region - 05/03/2026

In order to maintain the power system in a secure operating state in the New South Wales region, AEMO has invoked a discretionary constraint to limit the transfer from Qld to NSW.
.
Constraint set I-QN_550 has been invoked from 1320 hrs until further advice

This Constraint Set contains equations with the following interconnector on the LHS;

NSW1 - QLD1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Stockdill Upper Tumut No1 330kV line - NSW region - 04/03/2026

At 0843 hrs 04/03/2026 there was an unplanned outage of Stockdill Upper Tumut No1 330kV line.

The following constraint set(s) invoked at 0855 hrs 04/03/2026
N-SDUT_1

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Dumaresq SVC, Tamworth SVC and Taree to Port Macquarie 964 132 kV line - NSW region - 03/03/2026

At 1910 hrs 03/03/2026 there was a short notice outage of Dumaresq SVC, Tamworth SVC and Taree to Port Macquarie 964 132 kV line.

The following constraint set(s) invoked at 1910 hrs 03/03/2026
N-TAPM_964, N-X_DM+TW_SVC

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