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Cancellation of Actual (LOR1) condition in the NSW region - 01/06/2025
Cancellation of Actual (LOR1) condition in the NSW region - 01/06/2025
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.127348 is cancelled at 1910 hrs 01/06/2025.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/06/2025
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/06/2025
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1830 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1666 MW
The minimum capacity reserve available is 1646 MW
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW Region on 01/06/2025
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/06/2025
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 1830 hrs.
The forecast capacity reserve requirement is 1694 MW.
The minimum capacity reserve available is 1568 MW.
Manager NEM Real Time Operations
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 02/06/2025
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following period:
[1.] From 1730 hrs 02/06/2025 to 1900 hrs 02/06/2025.
The forecast capacity reserve requirement is 1766 MW.
The minimum capacity reserve available is 1650 MW.
Manager NEM Real Time Operations
Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - All NEM regions.
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely Severe Space Weather Watch in all NEM regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations
[EventId:202505291735_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 29 May 2025 17:35
Issued by Australian Energy Market Operator Ltd at 1735 hrs on 29 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 May 2025.
Refer to market notice: 127331
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1735 hrs on 29 May 2025.
This is an AEMO autogenerated Market Notice.
Cancellation of the Reclassification of a Non-Credible Contingency Event: Loss of the Sheffield - Burnie No. 1 220kV Line, Sheffield - Burnie No. 2 110kV Line and the Ulverstone - Emu Bay 110kV Line in TAS1 due to lightning
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event .
Based on advice received from the asset owner, AEMO no longer considers the trip of the Sheffield - Burnie No. 1 220kV Line, Sheffield - Burnie No. 2 110kV Line and the Ulverstone - Emu Bay 110kV Line in TAS1 due to lightning as a credible contingency when there is lightning activity in the vicinity.
Accordingly the reclassification as a credible contingency is cancelled .
Region: TAS1
Element: Sheffield - Burnie No. 1 220kV Line, Sheffield - Burnie No. 2 110kV Line and the Ulverstone - Emu Bay 110kV Line
Cancellation time: 29/05/2025 1600 hrs
Constraint set(s) revoked: NONE
Refer AEMO Electricity Market Notices 125566
Manager NEM Real Time Operations
[EventId:202505291600_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 29 May 2025 16:00
Issued by Australian Energy Market Operator Ltd at 1600 hrs on 29 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 29 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1600 hrs on 29 May 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202505281845_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 28 May 2025 18:45
Issued by Australian Energy Market Operator Ltd at 1845 hrs on 28 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 28 May 2025.
Refer to market notice: 127328
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1845 hrs on 28 May 2025.
This is an AEMO autogenerated Market Notice.