Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 20/02/2025

At 1619 hrs the Capital WF A and C 330kV Buses tripped.

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 - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 19/02/2025

A planned outage of South Morang - Dederang No.1 330kV line series capacitor in the VIC region was scheduled from 0449 hrs 04/02/2025 to 1700 hrs 31/03/2025.

The outage has been completed and South Morang - Dederang No.1 330kV line series capacitor returned to service at 1205 hrs 19/02/2025

Constraint set(s) revoked: V-SMSC

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Greenbank 275kV SVC - QLD region - 13/02/2025

At 1738 hrs 13/02/2025 there was an unplanned outage of the Greenbank 275kV SVC.

The following constraint set(s) invoked at 1745 hrs 13/02/2025
Q-GB_VC

This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,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 - No.2 Leg of Directlink - NSW region - 13/02/2025

A planned outage of the No.2 Leg of Directlink in the NSW region was scheduled from 1517 hrs 30/01/2025 to 1700 hrs 20/02/2025.

The outage has been completed and the No.2 Leg of Directlink returned to service at 1312 hrs 13/02/2025

Constraint set(s) revoked: N-X_MBTE_2

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale No 1 SVC - NSW region - 11/02/2025

At 2315 hrs 11/02/2025 there was an unplanned outage of Armidale No 1 SVC.

The following constraint set(s) invoked at 2325 hrs 11/02/2025
N-AR_VC1

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 - Yass Overload Control Scheme - NSW region - 11/02/2025

At 1750 hrs 11/02/2025 there was a short notice outage of Yass Overload Control Scheme.

The following constraint set(s) invoked at 1750 hrs: N-YSWG_SCHEME

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025

At 1538 hrs 11/02/2025 there was an unplanned outage of MLTS-SMTS No1 500 kV line CB at SYTS .

The following constraint set(s) invoked at 1600 hrs 11/02/2025
V-SY_CB

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

Referring to Market Notice 124466.

The power system security condition in the SA region, requiring AEMO to invoke the automated constraint set CA_SYDS_56BD5936 has ended at 1520 hrs.

Constraint set revoked: CA_SYDS_56BD5936

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the SA region, AEMO has invoked automated constraint set CA_SYDS_56BD5936 from 1410 hrs until further notice.

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

V-SA

Manager NEM Real Time Operations