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126786CONSTRAINTS29/04/2025 05:43:58 PM
Updated Victorian system normal voltage stability limit for the south-west Victoria
AEMO ELECTRICITY MARKET NOTICE
Refer to Market Notice 101368
AEMO has completed a review of the system normal voltage stability limit in the south-west Victoria as a result of Mortlake terminal station cut-in on the Haunted Gully to Tarrone 500 kV line.
The revised limit is increased by 100 MW on the cut-set from Haunted Gully to Moorabool and Mortlake to Moorabool 500 kV lines for flow towards Moorabool.
Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit has been implemented at 1201 hrs on Tuesday 29th April 2025, by updating V^^V_NIL_SWVIC.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
Refer to Market Notice 101368
AEMO has completed a review of the system normal voltage stability limit in the south-west Victoria as a result of Mortlake terminal station cut-in on the Haunted Gully to Tarrone 500 kV line.
The revised limit is increased by 100 MW on the cut-set from Haunted Gully to Moorabool and Mortlake to Moorabool 500 kV lines for flow towards Moorabool.
Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit has been implemented at 1201 hrs on Tuesday 29th April 2025, by updating V^^V_NIL_SWVIC.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
126783INTER-REGIONAL TRANSFER29/04/2025 04:51:17 PM
Inter-regional transfer limit variation - Eraring - Kemps Creek 5A1 500 kV line- NSW region - 29/04/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Eraring - Kemps Creek 5A1 500 kV line - NSW region - 29/04/2025
A planned outage of Eraring - Kemps Creek 5A1 500 kV line in the NSW region was scheduled from 0730 hrs 28/04/2025 to 1600 hrs 02/05/2025.
The outage has been completed and Eraring - Kemps Creek 5A1 500 kV line returned to service at 1650 hrs 29/04/2025
Constraint set revoked: N-ERKC_ONE
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Eraring - Kemps Creek 5A1 500 kV line - NSW region - 29/04/2025
A planned outage of Eraring - Kemps Creek 5A1 500 kV line in the NSW region was scheduled from 0730 hrs 28/04/2025 to 1600 hrs 02/05/2025.
The outage has been completed and Eraring - Kemps Creek 5A1 500 kV line returned to service at 1650 hrs 29/04/2025
Constraint set revoked: N-ERKC_ONE
Manager NEM Real Time Operations
126771GENERAL NOTICE29/04/2025 08:40:07 PM
Network Augmentation Commissioned - Vic Region - 29/04/2025
AEMO ELECTRICITY MARKET NOTICE
Network Augmentation Commissioned - Vic Region - 29/04/2025
At 2030hrs 29/04/2025, the existing Haunted Gully - Tarrone No1 500 kV transmission line has been cut in at Mortlake Power Station to create the following transmission line sections:
Mortlake PS - Tarrone No.1 500 kV transmission line
Mortlake PS - Haunted Gully No.1 500 kV transmission line
Manager NEM Real Time Operations
Network Augmentation Commissioned - Vic Region - 29/04/2025
At 2030hrs 29/04/2025, the existing Haunted Gully - Tarrone No1 500 kV transmission line has been cut in at Mortlake Power Station to create the following transmission line sections:
Mortlake PS - Tarrone No.1 500 kV transmission line
Mortlake PS - Haunted Gully No.1 500 kV transmission line
Manager NEM Real Time Operations
126740INTER-REGIONAL TRANSFER26/04/2025 11:57:04 AM
Inter-regional transfer limit variation - [outage element] - NSW region - 26/04/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - [outage element] - NSW region - 26/04/2025
At 1140 hrs 26/04/2025 there was a short notice outage of Griffith - Yanco 99J 132 kV Line.
The following constraint set(s) invoked at 1140 hrs 26/04/2025
N-GFYC-99J-C
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - [outage element] - NSW region - 26/04/2025
At 1140 hrs 26/04/2025 there was a short notice outage of Griffith - Yanco 99J 132 kV Line.
The following constraint set(s) invoked at 1140 hrs 26/04/2025
N-GFYC-99J-C
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
126722GENERAL NOTICE24/04/2025 03:59:43 PM
Release of QNI limit from NSW to Qld - 29th April 2025
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 124749.
AEMO, Transgrid, Powerlink have reviewed the test results following the QNI minor testing on 16th February 2025. The next hold point can now be released.
The hold point of 950 MW from NSW to Qld will be implemented as of 1000 hrs 29th April 2025.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
Refer to market notice 124749.
AEMO, Transgrid, Powerlink have reviewed the test results following the QNI minor testing on 16th February 2025. The next hold point can now be released.
The hold point of 950 MW from NSW to Qld will be implemented as of 1000 hrs 29th April 2025.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
126685SETTLEMENTS RESIDUE22/04/2025 03:00:23 PM
[EventId:202504221500_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 22 April 2025 15:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 22 April 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 2025.
Refer to market notice: 126682
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 1500 hrs on 22 April 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 22 April 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 2025.
Refer to market notice: 126682
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 1500 hrs on 22 April 2025.
This is an AEMO autogenerated Market Notice.
126682SETTLEMENTS RESIDUE22/04/2025 02:05:23 PM
[EventId:202504221405_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 22 April 2025 14:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1405 hrs on 22 April 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 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 1405 hrs on 22 April 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 1405 hrs on 22 April 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 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 1405 hrs on 22 April 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.
126670SETTLEMENTS RESIDUE22/04/2025 12:30:20 PM
[EventId:202504221230_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 22 April 2025 12:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1230 hrs on 22 April 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 2025.
Refer to market notice: 126667
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 1230 hrs on 22 April 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1230 hrs on 22 April 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 2025.
Refer to market notice: 126667
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 1230 hrs on 22 April 2025.
This is an AEMO autogenerated Market Notice.
126667SETTLEMENTS RESIDUE22/04/2025 10:35:19 AM
[EventId:202504221035_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 22 April 2025 10:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 22 April 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 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 1035 hrs on 22 April 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 1035 hrs on 22 April 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 April 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 1035 hrs on 22 April 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.