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128460NON-CONFORMANCE08/08/2025 09:45:17 AM
NON-CONFORMANCE Region NSW1 Friday, 8 August 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Friday, 8 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 08/08/2025 09:35 to 08/08/2025 09:45
Amount: 140 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Friday, 8 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 08/08/2025 09:35 to 08/08/2025 09:45
Amount: 140 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
128458POWER SYSTEM EVENTS07/08/2025 05:40:13 AM
Non-credible contingency event - SA region - 07/08/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 07/08/2025
At 0507 hrs the Dorrien end of the Templers West to Dorrien 132 kV line and the Templers battery 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
Non-credible contingency event - SA region - 07/08/2025
At 0507 hrs the Dorrien end of the Templers West to Dorrien 132 kV line and the Templers battery 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
128447NON-CONFORMANCE05/08/2025 04:55:17 PM
NON-CONFORMANCE Region SA1 Tuesday, 5 August 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE SA1 Region Tuesday, 5 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HPR1
Duration: 05/08/2025 16:50 to 05/08/2025 16:55
Amount: 13 MW
Constraint: NC-S_HPR1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE SA1 Region Tuesday, 5 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HPR1
Duration: 05/08/2025 16:50 to 05/08/2025 16:55
Amount: 13 MW
Constraint: NC-S_HPR1
Auto-generated on behalf of Manager NEM Real Time Operations
128446MARKET INTERVENTION05/08/2025 02:29:15 PM
Cancellation - AEMO Intervention Event - SA region 02/08/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - SA region 02/08/2025
Refer to Market Notice 128424
The AEMO Intervention Event and all associated directions are cancelled from 1430 hrs on 05/08/2025.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - SA region 02/08/2025
Refer to Market Notice 128424
The AEMO Intervention Event and all associated directions are cancelled from 1430 hrs on 05/08/2025.
Manager NEM Real Time Operations
128445MARKET INTERVENTION05/08/2025 02:27:06 PM
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128432
Direction is cancelled from: 1430 hrs 05/08/2025
Manager NEM Real Time Operations
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128432
Direction is cancelled from: 1430 hrs 05/08/2025
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.
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.
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.
128432MARKET INTERVENTION04/08/2025 04:00:50 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128427
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1430 hrs 05/08/2025.
The direction update is issued at 1600 hrs 04/08/2025.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128427
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 1430 hrs 05/08/2025.
The direction update is issued at 1600 hrs 04/08/2025.
Manager NEM Real Time Operations
128427MARKET INTERVENTION03/08/2025 02:35:58 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128425
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 05/08/2025.
The direction update is issued at 1435 hrs 03/08/2025.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128425
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 05/08/2025.
The direction update is issued at 1435 hrs 03/08/2025.
Manager NEM Real Time Operations