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[EventId:202312141555_review] Prices for interval 14-Dec-2023 15:55 are subject to review
Issued by Australian Energy Market Operator Ltd at 1550 hrs on 14 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 15:55.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312141550_review] Prices for interval 14-Dec-2023 15:50 are subject to review
Issued by Australian Energy Market Operator Ltd at 1545 hrs on 14 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 15:50.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312141545_review] Prices for interval 14-Dec-2023 15:45 are subject to review
Issued by Australian Energy Market Operator Ltd at 1540 hrs on 14 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 15:45.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312141540_review] Prices for interval 14-Dec-2023 15:40 are subject to review
Issued by Australian Energy Market Operator Ltd at 1535 hrs on 14 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 15:40.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312141530_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 14 December 2023 15:30
Issued by Australian Energy Market Operator Ltd at 1530 hrs on 14 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 14 December 2023.
Refer to market notice: 112322
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 1530 hrs on 14 December 2023.
This is an AEMO autogenerated Market Notice.
[EventId:202312141535_review] Prices for interval 14-Dec-2023 15:35 are subject to review
Issued by Australian Energy Market Operator Ltd at 1530 hrs on 14 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 14-Dec-2023 15:35.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312141400_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 14 December 2023 14:00
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 14 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 14 December 2023.
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 1400 hrs on 14 December 2023.
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.
Cancellation of a Non-Credible Contingency Event: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers in SA region due to Lightning
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA1
Elements: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers
Cancellation time: 14/12/2023 14:10
Constraint set(s) revoked: S-RBTU+SCON_N-2
Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
Refer AEMO Electricity Market Notice 111818
Manager NEM Real Time Operations
Update - Vulnerbale lines - SA region
Vulnerable lines in SA region.
[Special Reclassification of Transmission Lines during lightning]
Refer to AEMO Electricity Market Notices 111818
At 1350 28/11/2023 hrs Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers were reclassified due to the elements tripping at 0534 hrs 28/11/2023
The cause of trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the following elements to be vulnerable due to lightning.
Elements: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers.
Manager NEM Real Time Operations