Market Notices

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR3) condition in the VIC region - 13/02/2024

The Actual LOR3 Condition in the VIC region advised in AEMO Electricity Market Notice No.114604 is cancelled at 1515 hrs 13/02/2024.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

At 1308 hrs 13/02/2024 the Moorabool Sydenham No1 and No2 500 kV lines tripped.
There have been reports of towers on the ground.

In the Victorian region
1000 MW of customer load lost during the fault has been restored
2690 Generation tripped

The AEMO instructed loadshed of 300 MW is being progressively restored.

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Load Shedding Direction in the Vic Region

AEMO has directed load shedding commencing at 1420 hrs 13/02/2024
in the Victoria region to restore power system security.

The direction was issued under section 116 of the NEL, and was a clause 4.8.9 instruction under the NER.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 3 (LOR3) in the VIC region - 13/02/2024

Customer load shedding of non-interruptible load is occurring in the VIC region as a result of a shortfall of available capacity reserves.

An Actual LOR3 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the VIC region from 1420 hrs.
The Actual LOR3 condition is not forecast in Pre Dispatch.

The maximum load to be interrupted is up to 450 MW from 1420 hrs 13/02/2024

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Significant power system event - 13 Feb 2024

At 1308 hrs 13/02/2024 a significant power system event occurred.

Description of event - Multiple tripping of generation and transmission lines in the Vic region

Transmission element(s) tripped - Moorabool Sydenham No1 and No2 500 kV lines tripped

Region/s - Vic

Load interrupted - in excess of 1000 MW

Generation volume tripped - 2300 MW

Updates will be provided as additional information becomes available.

This Market Notice is issued in accordance with NER clause 4.8.3.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation - Non-credible contingency event - QLD region - 27/01/2024

Refer AEMO Electricity Market Notice 113825

At 0138 hrs the Gin Gin (H6) No.2 275 kV Busbar tripped.

AEMO has received further information and now determines this was not a non-credible contingency event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 27/01/2024

At 0138 hrs the Gin Gin (H6) No.2 275 kV Busbar 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.

Update - Non-credible contingency event - QLD region - 23/01/2024

Refer AEMO Electricity Market Notice 113659

At 1122 hrs the H35 Strathmore No2 275 kV bus was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

Nebo - Strathmore 878 275 kV line to remain out of service.

See Network Outage Scheduler (NOS) for further details.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 23/01/2024

At 0957 hrs the Strathmore No 2 275 kV bus 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.
The following constraint set(s) invoked
Q-NESTM
Q-X_NQ_275_FDR+BUS

Manager NEM Real Time Operations