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CHG0064858 : Unplanned System Maintenance - Declared Wholesale Gas Market (DWGM)
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Expedited
Service/ Component: Declared Wholesale Gas Market
Change Title: Unplanned System Maintenance - Declared Wholesale Gas Market (DWGM)
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Cancellation of Actual (LOR1) condition in the NSW region - 01/07/2021
Cancellation of Actual (LOR1) condition in the NSW region - 01/07/2021
The Actual LOR1 Condition in the NSW region advised in AEMO Electricity Market Notice No.87792 is cancelled at 1800 hrs 01/07/2021.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021
Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021
A planned outage of Liddell- Tamworth 84 330 kV Line in the NSW region was scheduled from 0700 hrs 01/07/2021 to 1830 hrs 01/07/2021.
The outage has been returned to service at 1655 hrs 01/07/2021
Constraint set(s) revoked: N-LDTW_84
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/07/2021
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/07/2021
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1800 hrs.
The capacity reserve requirement is 1470 MW
The minimum capacity reserve available is 1433 MW
Manager NEM Real Time Operations
[EventId:202107011630_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 01 July 2021 16:30
Issued by Australian Energy Market Operator Ltd at 1630 hrs on 1 July 2021
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 1 July 2021.
Refer to market notice: 87786
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the QLD to NSW directional interconnector.
The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1630 hrs on 1 July 2021.
This is an AEMO autogenerated Market Notice.
Direction - SA region 01/07/2021
Direction - SA region 01/07/2021
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1605 hrs on 01/07/2021.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Dederang- South Morang No1 330 kV Line - Victoria region - 01/07/2021
Inter-regional transfer limit variation - Dederang- South Morang No1 330 kV Line - Victoria region - 01/07/2021
A planned outage of Dederang- South Morang No1 330 kV Line in the Victoria region was scheduled for completion at 1700 hrs 05/07/2021.
The outage has been returned to service 1520 hrs 01/07/2021.
Constraint set(s) revoked: V-DDSM, V-DBUSS_L and V-DBUSS_T
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
T-V-MNSP1
V-SA
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021
Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021
A planned outage of Liddell- Tamworth 84 330 kV Line in the NSW region was scheduled from 0700 hrs 01/07/2021 to 1700 hrs 01/07/2021.
The outage has been rescheduled for 0700 hrs 01/07/2021 to 1830 hrs 01/07/2021.
Constraint set(s) invoked: N-LDTW_84
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
[EventId:202107011505_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 01 July 2021 15:05
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 1 July 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 1 July 2021.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.
The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1505 hrs on 1 July 2021.
This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.