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127866SETTLEMENTS RESIDUE25/06/2025 05:20:24 PM
[EventId:202506251720_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 25 June 2025 17:20
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1720 hrs on 25 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 25 June 2025.
Refer to market notice: 127856
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 1720 hrs on 25 June 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1720 hrs on 25 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 25 June 2025.
Refer to market notice: 127856
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 1720 hrs on 25 June 2025.
This is an AEMO autogenerated Market Notice.
127864RESERVE NOTICE25/06/2025 04:58:25 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 3 (LOR3) in the SA Region on 02/07/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 127847 is cancelled at 1600 hrs on 25/06/2025.
No LOR3 condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR3 condition in the SA region advised in AEMO Electricity Market Notice No. 127847 is cancelled at 1600 hrs on 25/06/2025.
No LOR3 condition is currently forecast in the STPASA period.
AEMO Operations
127863RECLASSIFY CONTINGENCY25/06/2025 04:34:25 PM
Cancellation of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 kV line in VIC1 due to Lightning.
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 25/06/2025 16:34
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 127855
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 25/06/2025 16:34
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 127855
Auto-generated on behalf of Manager NEM Real Time Operations
127860RESERVE NOTICE25/06/2025 04:35:44 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 01/07/2025
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 periods:
From 0000 hrs to 0030 hrs 01/07/2025.
The forecast capacity reserve requirement is 1163 MW.
The minimum capacity reserve available is 1010 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the VIC region for the following periods:
From 0000 hrs to 0030 hrs 01/07/2025.
The forecast capacity reserve requirement is 1163 MW.
The minimum capacity reserve available is 1010 MW.
AEMO Operations
127859RESERVE NOTICE25/06/2025 04:35:44 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 03/07/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
From 0330 hrs to 0400 hrs 03/07/2025.
The forecast capacity reserve requirement is 467 MW.
The minimum capacity reserve available is 253 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
From 0330 hrs to 0400 hrs 03/07/2025.
The forecast capacity reserve requirement is 467 MW.
The minimum capacity reserve available is 253 MW.
AEMO Operations
127858RESERVE NOTICE25/06/2025 04:35:34 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 02/07/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
1. From 1130 hrs to 1300 hrs 02/07/2025.
The forecast capacity reserve requirement is 423 MW.
The minimum capacity reserve available is 269 MW.
2. From 1530 hrs to 1630 hrs 02/07/2025.
The forecast capacity reserve requirement is 437 MW.
The minimum capacity reserve available is 391 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
1. From 1130 hrs to 1300 hrs 02/07/2025.
The forecast capacity reserve requirement is 423 MW.
The minimum capacity reserve available is 269 MW.
2. From 1530 hrs to 1630 hrs 02/07/2025.
The forecast capacity reserve requirement is 437 MW.
The minimum capacity reserve available is 391 MW.
AEMO Operations
127856SETTLEMENTS RESIDUE25/06/2025 03:35:15 PM
[EventId:202506251535_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 25 June 2025 15:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1535 hrs on 25 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 25 June 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 1535 hrs on 25 June 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 1535 hrs on 25 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 25 June 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 1535 hrs on 25 June 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.
127855RECLASSIFY CONTINGENCY25/06/2025 03:29:35 PM
Reclassification of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 kV line in VIC1 due to Lightning.
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Duration: 25/06/2025 15:29 until further notice
Constraint set(s) invoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Duration: 25/06/2025 15:29 until further notice
Constraint set(s) invoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
127854RESERVE NOTICE25/06/2025 04:35:34 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the VIC Region on 30/06/2025
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 periods:
1. From 0630 hrs to 1230 hrs 30/06/2025.
The forecast capacity reserve requirement is 1163 MW.
The minimum capacity reserve available is 766 MW.
2. From 1430 hrs to 2359 hrs 30/06/2025.
The forecast capacity reserve requirement is 1163 MW.
The minimum capacity reserve available is 739 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the VIC region for the following periods:
1. From 0630 hrs to 1230 hrs 30/06/2025.
The forecast capacity reserve requirement is 1163 MW.
The minimum capacity reserve available is 766 MW.
2. From 1430 hrs to 2359 hrs 30/06/2025.
The forecast capacity reserve requirement is 1163 MW.
The minimum capacity reserve available is 739 MW.
AEMO Operations