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125081CONSTRAINTS25/02/2025 08:31:51 AM
Yass to Wagga control scheme change - removal system normal constraint equations in NSW managing 990, 991 and 970 132kV lines
AEMO ELECTRICITY MARKET NOTICE
Transgrid has advised AEMO of an update to the Yass overload trip scheme. The scheme is normally armed managing line flow on 990, 991, 970 132kV lines and it is now operating both directions of flow from Wagga to Yass.
Based on this advice, the following constraint equations will be removed from the NSW system normal constraint sets N-NIL and N-NIL_991, effective immediately.
N>>NIL_970_051
N>>NIL_990_051
N>>NIL_991_051
Ben Blake
AEMO Operations
Transgrid has advised AEMO of an update to the Yass overload trip scheme. The scheme is normally armed managing line flow on 990, 991, 970 132kV lines and it is now operating both directions of flow from Wagga to Yass.
Based on this advice, the following constraint equations will be removed from the NSW system normal constraint sets N-NIL and N-NIL_991, effective immediately.
N>>NIL_970_051
N>>NIL_990_051
N>>NIL_991_051
Ben Blake
AEMO Operations
125026INTER-REGIONAL TRANSFER23/02/2025 03:44:24 AM
Inter-regional transfer limit variation - BassLink Harmonic Filter - TAS region - 23/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - BassLink Harmonic Filter - TAS region - 23/02/2025
At 0305 hrs 23/02/2025 there was an unplanned outage of BassLink Harmonic Filter.
The following constraint set(s) invoked at 0305 hrs 23/02/2025
T-BLGC_HF_43MVAR
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - BassLink Harmonic Filter - TAS region - 23/02/2025
At 0305 hrs 23/02/2025 there was an unplanned outage of BassLink Harmonic Filter.
The following constraint set(s) invoked at 0305 hrs 23/02/2025
T-BLGC_HF_43MVAR
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
124986INTER-REGIONAL TRANSFER22/02/2025 08:11:27 AM
Inter-regional transfer limit variation - Collector Windfarm - Yass (3L) 330 kV line - NSW region - 22/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Collector Windfarm - Yass (3L) 330 kV line - NSW region - 22/02/2025
A planned outage of Collector Windfarm - Yass (3L) 330 kV line in the NSW region was scheduled from 0600 hrs 17/02/2025 to 1600 hrs 24/02/2025.
The outage has been completed and Collector Windfarm - Yass (3L) 330 kV line returned to service at 0746 hrs 22/02/2025
Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Collector Windfarm - Yass (3L) 330 kV line - NSW region - 22/02/2025
A planned outage of Collector Windfarm - Yass (3L) 330 kV line in the NSW region was scheduled from 0600 hrs 17/02/2025 to 1600 hrs 24/02/2025.
The outage has been completed and Collector Windfarm - Yass (3L) 330 kV line returned to service at 0746 hrs 22/02/2025
Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE
Manager NEM Real Time Operations
124877INTER-REGIONAL TRANSFER19/02/2025 12:06:26 PM
Inter-regional transfer limit variation - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 19/02/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 19/02/2025
A planned outage of South Morang - Dederang No.1 330kV line series capacitor in the VIC region was scheduled from 0449 hrs 04/02/2025 to 1700 hrs 31/03/2025.
The outage has been completed and South Morang - Dederang No.1 330kV line series capacitor returned to service at 1205 hrs 19/02/2025
Constraint set(s) revoked: V-SMSC
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South Morang - Dederang No.1 330kV line series capacitor - VIC region - 19/02/2025
A planned outage of South Morang - Dederang No.1 330kV line series capacitor in the VIC region was scheduled from 0449 hrs 04/02/2025 to 1700 hrs 31/03/2025.
The outage has been completed and South Morang - Dederang No.1 330kV line series capacitor returned to service at 1205 hrs 19/02/2025
Constraint set(s) revoked: V-SMSC
Manager NEM Real Time Operations
124622INTER-REGIONAL TRANSFER13/02/2025 05:52:57 PM
Inter-regional transfer limit variation - Greenbank 275kV SVC - QLD region - 13/02/2025
AEMO ELECTRICITY MARKET NOTICE
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 - 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
124617INTER-REGIONAL TRANSFER13/02/2025 02:53:56 PM
Inter-regional transfer limit variation - Directlink- NSW region - 13/02/2025
AEMO ELECTRICITY MARKET NOTICE
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
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
124616MINIMUM SYSTEM LOAD13/02/2025 03:08:09 PM
Cancellation of Forecast Minimum System Load (MSL) MSL1 event in the Vic Region on 16/02/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 13/02/2025.
Refer to Market Notice 124560 for MSL1.
AEMO Operations
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 13/02/2025.
Refer to Market Notice 124560 for MSL1.
AEMO Operations
124579RESERVE NOTICE12/02/2025 08:44:30 PM
Cancellation of Actual (LOR1) condition in the SA region - 12/02/2025
AEMO ELECTRICITY MARKET NOTICE
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
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
124572RESERVE NOTICE12/02/2025 06:53:15 PM
Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 12/02/2025
AEMO ELECTRICITY MARKET NOTICE
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
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