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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.
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
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
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
128415NON-CONFORMANCE01/08/2025 02:40:13 PM
NON-CONFORMANCE Region NSW1 Friday, 1 August 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Friday, 1 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEVERSF1
Duration: 01/08/2025 14:25 to 01/08/2025 14:40
Amount: 26 MW
Constraint: NC-N_NEVERSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Friday, 1 August 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEVERSF1
Duration: 01/08/2025 14:25 to 01/08/2025 14:40
Amount: 26 MW
Constraint: NC-N_NEVERSF1
Auto-generated on behalf of Manager NEM Real Time Operations
128410NON-CONFORMANCE31/07/2025 03:35:22 PM
NON-CONFORMANCE Region NSW1 Thursday, 31 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Thursday, 31 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HUNTER1
Duration: 31/07/2025 15:05 to 31/07/2025 15:35
Amount: -6 MW
Constraint: NC-N_HUNTER1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Thursday, 31 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: HUNTER1
Duration: 31/07/2025 15:05 to 31/07/2025 15:35
Amount: -6 MW
Constraint: NC-N_HUNTER1
Auto-generated on behalf of 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
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
128378NON-CONFORMANCE26/07/2025 09:25:25 PM
NON-CONFORMANCE Region QLD1 Saturday, 26 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Saturday, 26 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: ULPBESS1
Duration: 26/07/2025 21:15 to 26/07/2025 21:25
Amount: 6 MW
Constraint: NC-Q_ULPBESS1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Saturday, 26 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: ULPBESS1
Duration: 26/07/2025 21:15 to 26/07/2025 21:25
Amount: 6 MW
Constraint: NC-Q_ULPBESS1
Auto-generated on behalf of Manager NEM Real Time Operations
128375NON-CONFORMANCE26/07/2025 02:05:19 PM
NON-CONFORMANCE Region VIC1 Saturday, 26 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Saturday, 26 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: KESSB1
Duration: 26/07/2025 13:40 to 26/07/2025 14:05
Amount: 55 MW
Constraint: NC-V_KESSB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Saturday, 26 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: KESSB1
Duration: 26/07/2025 13:40 to 26/07/2025 14:05
Amount: 55 MW
Constraint: NC-V_KESSB1
Auto-generated on behalf of Manager NEM Real Time Operations