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Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 20/02/2025 18:39
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 124940
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202502201830_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 20 February 2025 18:30
Issued by Australian Energy Market Operator Ltd at 1830 hrs on 20 February 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 20 February 2025.
Refer to market notice: 124950
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 1830 hrs on 20 February 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202502201745_review] Prices for interval 20-Feb-2025 17:45 are subject to review
Issued by Australian Energy Market Operator Ltd at 1740 hrs on 20 February 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 20-Feb-2025 17:45.
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:202502201735_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 20 February 2025 17:35
Issued by Australian Energy Market Operator Ltd at 1735 hrs on 20 February 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 20 February 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 1735 hrs on 20 February 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.
[EventId:202502201740_review] Prices for interval 20-Feb-2025 17:40 are subject to review
Issued by Australian Energy Market Operator Ltd at 1735 hrs on 20 February 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 20-Feb-2025 17:40.
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:202502201735_review] Prices for interval 20-Feb-2025 17:35 are subject to review
Issued by Australian Energy Market Operator Ltd at 1730 hrs on 20 February 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 20-Feb-2025 17:35.
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:202502201730_review] Prices for interval 20-Feb-2025 17:30 are subject to review
Issued by Australian Energy Market Operator Ltd at 1725 hrs on 20 February 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 20-Feb-2025 17:30.
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:202502201725_review] Prices for interval 20-Feb-2025 17:25 are subject to review
Issued by Australian Energy Market Operator Ltd at 1720 hrs on 20 February 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 20-Feb-2025 17:25.
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:202502201720_review] Prices for interval 20-Feb-2025 17:20 are subject to review
Issued by Australian Energy Market Operator Ltd at 1715 hrs on 20 February 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 20-Feb-2025 17:20.
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.