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128155RECLASSIFY CONTINGENCY17/07/2025 09:41:05 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 17/07/2025 21:41 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 17/07/2025 21:41 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
128153RECLASSIFY CONTINGENCY17/07/2025 05:07:13 PM
Cancellation - Reclassification of a non-credible contingency event to credible event - SA region - 15/08/2023
AEMO ELECTRICITY MARKET NOTICE.
Cancellation - Reclassification of a non-credible contingency event to credible event - SA region - 15/08/2023
Refer AEMO ELECTRICITY MARKET NOTICES 109321,109323
Based on advise received from TNSP, AEMO is satisfied that this non credible event is unlikely to re-occur.
AEMO therefore cancels this reclassification as a credible contingency event.
Region: SA
Elements: Blyth West - Munno Para 275 kV Line tripping at Blyth West end only
Cancelled: 17/07/2025 1630 hrs
Constraint(s) invoked: Nil
Manager NEM Real Time Operations
Cancellation - Reclassification of a non-credible contingency event to credible event - SA region - 15/08/2023
Refer AEMO ELECTRICITY MARKET NOTICES 109321,109323
Based on advise received from TNSP, AEMO is satisfied that this non credible event is unlikely to re-occur.
AEMO therefore cancels this reclassification as a credible contingency event.
Region: SA
Elements: Blyth West - Munno Para 275 kV Line tripping at Blyth West end only
Cancelled: 17/07/2025 1630 hrs
Constraint(s) invoked: Nil
Manager NEM Real Time Operations
128152RECLASSIFY CONTINGENCY17/07/2025 04:09:50 PM
Cancellation of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 kV line in VIC1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 17/07/2025 16:09
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 128150
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Cancellation time: 17/07/2025 16:09
Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 128150
Auto-generated on behalf of Manager NEM Real Time Operations
128150RECLASSIFY CONTINGENCY17/07/2025 03:07:35 PM
Reclassification of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 kV line in VIC1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Duration: 17/07/2025 15:07 until further notice
Constraint set(s) invoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV
Duration: 17/07/2025 15:07 until further notice
Constraint set(s) invoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
128143PRICES SUBJECT TO REVIEW16/07/2025 10:30:20 PM
[EventId:202507162235_review] Prices for interval 16-Jul-2025 22:35 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2230 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:35.
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.
Issued by Australian Energy Market Operator Ltd at 2230 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:35.
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.
128142PRICES SUBJECT TO REVIEW16/07/2025 10:25:20 PM
[EventId:202507162230_review] Prices for interval 16-Jul-2025 22:30 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2225 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:30.
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.
Issued by Australian Energy Market Operator Ltd at 2225 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:30.
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.
128141PRICES SUBJECT TO REVIEW16/07/2025 10:20:28 PM
[EventId:202507162225_review] Prices for interval 16-Jul-2025 22:25 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2220 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:25.
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.
Issued by Australian Energy Market Operator Ltd at 2220 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:25.
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.
128140PRICES SUBJECT TO REVIEW16/07/2025 10:15:20 PM
[EventId:202507162220_review] Prices for interval 16-Jul-2025 22:20 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2215 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:20.
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.
Issued by Australian Energy Market Operator Ltd at 2215 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:20.
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.
128139PRICES SUBJECT TO REVIEW16/07/2025 10:10:27 PM
[EventId:202507162215_review] Prices for interval 16-Jul-2025 22:15 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2210 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:15.
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.
Issued by Australian Energy Market Operator Ltd at 2210 hrs on 16 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 16-Jul-2025 22:15.
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.