Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - APD - Heywood - Mortlake 500 kV line - VIC region - 10/04/2025

At 0825 hrs 10/04/2025 there was an unplanned outage of the APD - Heywood - Mortlake 500 kV line.

The following constraint set(s) invoked at 0835 hrs 10/04/2025
V-HYMO

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1,NSW1-QLD1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the NSW region - 09/04/2025

The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.126458 is cancelled at 1845 hrs 09/04/2025.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 09/04/2025

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1830 hrs

The capacity reserve requirement is 1549 MW
The minimum capacity reserve available is 1164 MW

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_56FB4FDD from 1405 hrs until further notice.

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

VIC1-NSW1

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

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Mullumbimby - Dunoon - Lismore 132 kV 9U6 line - NSW region - 29/03/2025

At 0427 hrs 29/03/2025 there was an unplanned outage of Mullumbimby - Dunoon - Lismore 132 kV 9U6 line.

The following constraint set(s) invoked at 0435 hrs 29/03/2025
N-LSDU_9U6

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-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 - Hazelwood -South Morang No.1 500 kV line - VIC region - 27/03/2025

At 1150 hrs 27/03/2025 there was a short notice outage of Hazelwood -South Morang No.1 500 kV line.

The following constraint set(s) invoked at 1150 hrs 27/03/2025
V-HWSM

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,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 NSW region, AEMO has invoked automated constraint set CA_SYDS_56F70932 from 0820 hrs until further notice.

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

VIC1-NSW1

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Palmerston A 220kV Bus - TAS region - 26/03/2025

Refer to Market Notice 125962.

The following constraint set(s) invoked from 1600 hrs to 1620 hrs 26/03/2026.
T-LIPM_WACB
T-LIPM_WACB_SL_N-2


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 ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Lower Tumut - Canberra 07 330kV Line - NSW region - 25/03/2025

A planned outage of Lower Tumut - Canberra 07 330kV Line in the NSW region was scheduled from 1746 hrs 21/03/2025 to 1800 hrs 26/03/2025.

The outage has been completed and Lower Tumut - Canberra 07 330kV Line returned to service at 1555 hrs 25/03/2025

Constraint set(s) revoked: N-CNLT_07

Manager NEM Real Time Operations