Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 31/10/2024

At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.

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

AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region on 05/11/2024.

Minimum regional demand is forecast to be 1238 MW at 1300 hrs, and the advisory threshold is:
MSL1 - 1535 MW
MSL2 - 1035 MW
MSL3 - 535 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1030 hrs to 1400 hrs 05/11/2024.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any Lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: VIC

Lines: Rowville - Yallourn No. 7 220 kV Line and the Rowville - Yallourn No. 8 220 kV Line

Cancellation time: 12:20 hrs 30/10/2024

Constraint set(s) revoked:
V-ROYP78_R_N-2

Refer AEMO Electricity Market Notice 119030

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update to Market Notice 119571 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region on 02/11/2024.

Minimum regional demand is forecast to be 1457 MW at 1230 hrs, and the advisory threshold is:
MSL1 - 1695 MW
MSL2 - 1195 MW
MSL3 - 695 MW


The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1130 hrs to 1400 hrs 02/11/2024.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW1

Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV

Cancellation time: 28/10/2024 15:39

Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1


Refer AEMO Electricity Market Notice 119561

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation - MSL1- VIC Region at 1400 hrs 28/10/2024.

Refer to Market Notice 119497 for Forecast MSL1.


AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region on 02/11/2024.

Minimum regional demand is forecast to be 1491 MW at 1230 hrs, and the advisory threshold is:
MSL1 = 1695 MW
MSL2 = 1195 MW
MSL3 = 695 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1100 hrs to 1330 hrs 02/11/2024.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: NSW1

Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV

Duration: 28/10/2024 11:33 until further notice

Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1


Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation - MSL1- VIC Region at 1315 hrs 26/10/2024.

Refer to Market Notice 119423 for MSL1.

Manager NEM Real Time Operations