Market Notices

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

From 1 July 2024 AEMO will dispatch R1 and L1 FCAS locally in the SA region during conditions of actual islanding of the SA region.

This follows the end of contracts for Fast Frequency Response (FFR) in the SA region.

The dispatch of R1 and L1 FCAS under these island conditions will not be capped.

These changes are only applicable for conditions of actual SA islanding from the rest of the NEM.

No other changes to the dispatch of R1 and L1 FCAS will be made on this date.

For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response

Andrew Groom
AEMO 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

Network Augmentation Commissioned - QLD Region - 21/06/2024

Commissioned:
H90 Tully South - T48 Tully 7162 132kV line
H90 Tully South No.1 275kV /132 kV transformer

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink - NSW Region

There has been an unplanned outage of the No 1 Leg of Directlink .

The following constraint set was invoked at 1725 hrs 19/06/2024

N-X_MBTE_2

The constraint set contains the following interconnector on the left hand side.

N-Q-MNSP1

Refer AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Rowville - South Morang 500 kV line in the Victoria (VIC) region is planned to be out of service from 1400 hrs to 1630 hrs on 20/06/2024.

A credible contingency event during this planned outage could cause:
- A large reduction in generation in VIC; and/ or
- Restrict power transfer across the VIC - South Australia (SA) interconnector (Heywood interconnector).

Refer AEMO Network Outage Schedule (NOS) for further details.

AEMO Operations