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Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - SA region.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 127999 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 1905 hrs 08/07/2025
Constraint set(s) revoked: I-VS_250
Manager NEM Real Time Operations
[EventId:202507081730_review] Prices for interval 08-Jul-2025 17:30 are subject to review
Issued by Australian Energy Market Operator Ltd at 1725 hrs on 8 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Jul-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:202507081725_review] Prices for interval 08-Jul-2025 17:25 are subject to review
Issued by Australian Energy Market Operator Ltd at 1720 hrs on 8 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Jul-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:202507081720_review] Prices for interval 08-Jul-2025 17:20 are subject to review
Issued by Australian Energy Market Operator Ltd at 1715 hrs on 8 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Jul-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.
[EventId:202507081715_review] Prices for interval 08-Jul-2025 17:15 are subject to review
Issued by Australian Energy Market Operator Ltd at 1710 hrs on 8 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Jul-2025 17:15.
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.
[EventId:202507081710_review] Prices for interval 08-Jul-2025 17:10 are subject to review
Issued by Australian Energy Market Operator Ltd at 1705 hrs on 8 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Jul-2025 17:10.
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:202507081705_review] Prices for interval 08-Jul-2025 17:05 are subject to review
Issued by Australian Energy Market Operator Ltd at 1700 hrs on 8 July 2025
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Jul-2025 17:05.
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.
Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - SA region.
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 weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action(s) to maintain power system security at 0220 hrs 08/07/2025.
Constraint set(s) invoked:
I-VS_250
Duration: 0220 hrs until further notice
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
Reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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: SA
Lines: Para-Templers West and Magill-Torrens Island A 275kV lines
Duration: 0030 hrs 08/07/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations