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[EventId:202502140905_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 14 February 2025 09:05
Issued by Australian Energy Market Operator Ltd at 0905 hrs on 14 February 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 14 February 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 0905 hrs on 14 February 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.
Inter-regional transfer limit variation - Greenbank 275kV SVC - QLD region - 13/02/2025
Inter-regional transfer limit variation - Greenbank 275kV SVC - QLD region - 13/02/2025
At 1738 hrs 13/02/2025 there was an unplanned outage of the Greenbank 275kV SVC.
The following constraint set(s) invoked at 1745 hrs 13/02/2025
Q-GB_VC
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Directlink- NSW region - 13/02/2025
Inter-regional transfer limit variation - No.2 Leg of Directlink - NSW region - 13/02/2025
A planned outage of the No.2 Leg of Directlink in the NSW region was scheduled from 1517 hrs 30/01/2025 to 1700 hrs 20/02/2025.
The outage has been completed and the No.2 Leg of Directlink returned to service at 1312 hrs 13/02/2025
Constraint set(s) revoked: N-X_MBTE_2
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the SA region - 12/02/2025
Cancellation of Actual (LOR1) condition in the SA region - 12/02/2025
The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No.124572 is cancelled at 2040 hrs 12/02/2025.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 12/02/2025
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 12/02/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 1830 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs
The capacity reserve requirement is 524 MW
The minimum capacity reserve available is 470 MW
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale No 1 SVC- NSW region - 11/02/2025
Inter-regional transfer limit variation - Armidale No 1 SVC - NSW region - 11/02/2025
At 2315 hrs 11/02/2025 there was an unplanned outage of Armidale No 1 SVC.
The following constraint set(s) invoked at 2325 hrs 11/02/2025
N-AR_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
Inter-regional transfer limit variation - Yass Overload Control Scheme - NSW region - 11/02/2025
At 1750 hrs 11/02/2025 there was a short notice outage of Yass Overload Control Scheme.
The following constraint set(s) invoked at 1750 hrs: N-YSWG_SCHEME
This constraint set(s) contains equations with the following interconnectors on the LHS,
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
Inter-regional transfer limit variation - MLTS-SMTS No1 500 kV line CB at SYTS - VIC region - 11/02/2025
At 1538 hrs 11/02/2025 there was an unplanned outage of MLTS-SMTS No1 500 kV line CB at SYTS .
The following constraint set(s) invoked at 1600 hrs 11/02/2025
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in SA region - 11/02/2025
Referring to Market Notice 124466.
The power system security condition in the SA region, requiring AEMO to invoke the automated constraint set CA_SYDS_56BD5936 has ended at 1520 hrs.
Constraint set revoked: CA_SYDS_56BD5936
Manager NEM Real Time Operations