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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
128374NON-CONFORMANCE26/07/2025 01:00:19 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: RANGEB1
Duration: 26/07/2025 12:45 to 26/07/2025 13:00
Amount: 102 MW
Constraint: NC-V_RANGEB1
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: RANGEB1
Duration: 26/07/2025 12:45 to 26/07/2025 13:00
Amount: 102 MW
Constraint: NC-V_RANGEB1
Auto-generated on behalf of Manager NEM Real Time Operations
128360SETTLEMENTS RESIDUE26/07/2025 09:00:21 AM
[EventId:202507260900_NRM_SA1_VIC1_stopped] NEGRES CONSTRAINT NRM_SA1_VIC1 ceased operating from 26 July 2025 09:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0900 hrs on 26 July 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 26 July 2025.
Refer to market notice: 128358
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 0900 hrs on 26 July 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0900 hrs on 26 July 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 26 July 2025.
Refer to market notice: 128358
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 0900 hrs on 26 July 2025.
This is an AEMO autogenerated Market Notice.
128358SETTLEMENTS RESIDUE26/07/2025 08:05:28 AM
[EventId:202507260805_NRM_SA1_VIC1_started] NEGRES CONSTRAINT NRM_SA1_VIC1 started operating from 26 July 2025 08:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0805 hrs on 26 July 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 26 July 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 0805 hrs on 26 July 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 0805 hrs on 26 July 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 26 July 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 0805 hrs on 26 July 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.