Market Notices

128456RESERVE NOTICE06/08/2025 03:07:57 PM

STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 07/08/2025

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the TAS region advised in AEMO Electricity Market Notice No. 128430 is cancelled at 1400 hrs 06/08/2025.

AEMO Operations
     
128455RESERVE NOTICE06/08/2025 01:25:22 PM

PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 07/08/2025

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the VIC region for the following Period:


[1.] From 0730 hrs 07/08/2025 to 0800 hrs 07/08/2025.
The forecast capacity reserve requirement is 1148 MW.
The minimum capacity reserve available is 942 MW.


Manager NEM Real Time Operations
     
128453INTER-REGIONAL TRANSFER06/08/2025 09:49:32 AM

Inter-regional transfer limit variation - Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE - VIC region - 06/08/2025

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE - VIC region - 06/08/2025

A planned outage of Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE in the VIC region was scheduled from 0700 hrs 06/08/2025 to 1800 hrs 06/08/2025.

The outage has been completed and Red Cliffs - Wemen 220kV LINE and Koorangie - Wemen 220kV LINE returned to service at 0945 hrs 06/08/2025

Constraint set(s) revoked: V-KO_WE_RC

Manager NEM Real Time Operations
     
128448INTER-REGIONAL TRANSFER05/08/2025 08:43:31 PM

Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - South East 275 kV No. 2 SVC - SA region - 05/08/2025

At 2036 hrs 05/08/2025 there was an unplanned outage of South East 275 kV No. 2 SVC.

The following constraint set(s) invoked at 2045 hrs 05/08/2025
S-SE_VC1

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
128434SETTLEMENTS RESIDUE04/08/2025 08:00:21 PM

[EventId:202508042000_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 04 August 2025 20:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 2000 hrs on 4 August 2025

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 4 August 2025.

Refer to market notice: 128433

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.

The negative residue constraint NRM_VIC1_SA1 ceased operating at 2000 hrs on 4 August 2025.

This is an AEMO autogenerated Market Notice.
     
128433SETTLEMENTS RESIDUE04/08/2025 07:00:29 PM

[EventId:202508041900_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 04 August 2025 19:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1900 hrs on 4 August 2025

ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 4 August 2025.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.

The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1900 hrs on 4 August 2025.

This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
     
128430RESERVE NOTICE04/08/2025 02:40:03 PM

STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 07/08/2025

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:

From 0730 hrs to 0830 hrs 07/08/2025.
The forecast capacity reserve requirement is 582 MW.
The minimum capacity reserve available is 549 MW.

AEMO Operations
     
128420INTER-REGIONAL TRANSFER02/08/2025 12:56:53 PM

Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 02/08/2025

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_57A00625 from 1235 hrs until further notice.

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

N-Q-MNSP1
NSW1-QLD1


Manager NEM Real Time Operations
     
128379INTER-REGIONAL TRANSFER27/07/2025 10:56:17 AM

Inter-regional transfer limit variation - South_East N 275kV BUS- SA region - 27/07/2025

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - South_East N 275kV BUS - SA region - 27/07/2025

A planned outage of South_East N 275kV BUS in the SA region was scheduled from 0730 hrs 23/07/2025 to 1730 hrs 27/07/2025.

The outage has been completed and South_East N 275kV BUSt returned to service at 1100 hrs 27/07/2025

Constraint set(s) revoked: S-SECB6611_10

Manager NEM Real Time Operations
     
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