Market Notices

123589RESERVE NOTICE22/01/2025 05:47:39 PM

Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 22/01/2025

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 22/01/2025

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs

The capacity reserve requirement is 854 MW
The minimum capacity reserve available is 543 MW

Manager NEM Real Time Operations
     
123588INTER-REGIONAL TRANSFER22/01/2025 05:29:02 PM

Inter-regional transfer limit variation - Constraint invocation to manage Power System Security in NSW region - 25/01/2025

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the NSW region (Northern NSW) , AEMO has invoked constraint set #N-Q-MNSP1_E from 1720 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1

Manager NEM Real Time Operations
     
123554INTER-REGIONAL TRANSFER22/01/2025 10:40:43 AM

Inter-regional transfer limit variation -Bundy-Buronga (6F) 330 kV line - NSW region - 21/01/2025

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - - NSW region - 21/01/2025

At 1935 hrs 21/01/2025 there was a short notice outage of Bundy-Buronga (6F) 330 kV line

The following constraint set(s) invoked
I-BDBU_ONE

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

The outage is scheduled to return to service at 1935 hrs 22/01/2025

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
123451POWER SYSTEM EVENTS18/01/2025 04:19:58 PM

Update - Non-credible contingency event - NSW region - 15/01/2025

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 15/01/2025

Refer AEMO Electricity Market Notice 123354

At 1458 hrs the Tomago - Taree (963) 132kV line was returned to service. The Tomago - Brandy Hill (9C6) 132kV line was returned to service on 16/01/2025.

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.

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

Manager NEM Real Time Operations
     
123445POWER SYSTEM EVENTS18/01/2025 02:06:59 PM

Update - Non-credible contingency event - NSW region - 17/01/2025

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 17/01/2025

Refer AEMO Electricity Market Notice 123406

At 1345 hrs the Buronga 330 kV B 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.

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

Manager NEM Real Time Operations
     
123406POWER SYSTEM EVENTS17/01/2025 02:46:41 PM

Update Non-credible contingency event - NSW region - 17/01/2025

AEMO ELECTRICITY MARKET NOTICE.

Update Non-credible contingency event - NSW region - 17/01/2025

Refer AEMO Electricity Market Notice 123404

At 0825 hrs the Buronga 330 kV B 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.

Manager NEM Real Time Operations
     
123404POWER SYSTEM EVENTS17/01/2025 10:11:09 AM

Non-credible contingency event - NSW region - 17/01/2025

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 17/01/2025

At 0825 hrs the Buronga 330 kV B 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
     
123382INTER-REGIONAL TRANSFER16/01/2025 02:40:39 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 16/01/2025

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_BRIS_569B1432 from 1425 hrs until further notice.

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

NSW1-QLD1

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

Manager NEM Real Time Operations
     
123354POWER SYSTEM EVENTS15/01/2025 10:45:07 PM

Non-credible contingency event - NSW region - 15/01/2025

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 15/01/2025

At 2019 hrs the Tomago - Taree (963) 132kV line and the Tomago - Brandy Hill (96C) 132kV line tripped.

AEMO did not instruct load shedding.

AEMO has been advised of disconnection of 80 MW of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
     
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