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90056PRICES SUBJECT TO REVIEW31/08/2021 09:15:18 AM
[EventId:202108310920_review] Prices for interval 31-Aug-2021 09:20 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0915 hrs on 31 August 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 31-Aug-2021 09:20.
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 0915 hrs on 31 August 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 31-Aug-2021 09:20.
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.
90055PRICES SUBJECT TO REVIEW31/08/2021 09:10:11 AM
[EventId:202108310915_review] Prices for interval 31-Aug-2021 09:15 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0910 hrs on 31 August 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 31-Aug-2021 09:15.
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 0910 hrs on 31 August 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 31-Aug-2021 09:15.
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.
90054NON-CONFORMANCE31/08/2021 08:05:22 AM
NON-CONFORMANCE Region QLD1 Tuesday, 31 August 2021
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Tuesday, 31 August 2021
AEMO declared a schedule generating unit non-conforming
Unit: TNPS1
Duration: 31/08/2021 08:00 to 31/08/2021 08:05
Amount: -21 MW
Constraint: NC-Q_TNPS1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Tuesday, 31 August 2021
AEMO declared a schedule generating unit non-conforming
Unit: TNPS1
Duration: 31/08/2021 08:00 to 31/08/2021 08:05
Amount: -21 MW
Constraint: NC-Q_TNPS1
Auto-generated on behalf of Manager NEM Real Time Operations
90053NON-CONFORMANCE31/08/2021 05:45:16 AM
NON-CONFORMANCE Region QLD1 Tuesday, 31 August 2021
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Tuesday, 31 August 2021
AEMO declared a schedule generating unit non-conforming
Unit: TNPS1
Duration: 31/08/2021 05:35 to 31/08/2021 05:45
Amount: 29 MW
Constraint: NC-Q_TNPS1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Tuesday, 31 August 2021
AEMO declared a schedule generating unit non-conforming
Unit: TNPS1
Duration: 31/08/2021 05:35 to 31/08/2021 05:45
Amount: 29 MW
Constraint: NC-Q_TNPS1
Auto-generated on behalf of Manager NEM Real Time Operations
90052RECLASSIFY CONTINGENCY31/08/2021 04:39:48 AM
Cancellation of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV line in QLD1 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: QLD1
Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 31/08/2021 04:39
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 90051
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: QLD1
Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 31/08/2021 04:39
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 90051
Auto-generated on behalf of Manager NEM Real Time Operations
90051RECLASSIFY CONTINGENCY31/08/2021 03:35:16 AM
Reclassification of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV line in QLD1 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: QLD1
Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Duration: 31/08/2021 03:35 until further notice
Constraint set(s) invoked:
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: QLD1
Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Duration: 31/08/2021 03:35 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
90050POWER SYSTEM EVENTS31/08/2021 02:33:36 AM
Non-credible contingency event - Qld Region - 31/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld Region - 31/08/2021
At 0207 hrs the T32 Blackwater No 1 132 kV SVC and T209 Bluff No 1 132 kV SVC tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - Qld Region - 31/08/2021
At 0207 hrs the T32 Blackwater No 1 132 kV SVC and T209 Bluff No 1 132 kV SVC tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
90049INTER-REGIONAL TRANSFER31/08/2021 12:34:35 AM
Inter-regional transfer limit variation: Hazelwood - South Morang No 2 500 kV Line (VIC) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
The Hazelwood - South Morang No 2 500 kV Line has been de-energised to manage voltages in the Victoria region.
The following constraint set was invoked at 0035 hrs 31/08/2021.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for return to service details
Manager NEM Real Time Operations
The Hazelwood - South Morang No 2 500 kV Line has been de-energised to manage voltages in the Victoria region.
The following constraint set was invoked at 0035 hrs 31/08/2021.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for return to service details
Manager NEM Real Time Operations
90048RESERVE NOTICE30/08/2021 07:32:03 PM
Cancellation of Actual (LOR1) condition in the QLD region - 30/08/2021
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the QLD region - 30/08/2021
The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No 90047 is cancelled at 1915 hrs 30/08/2021
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the QLD region - 30/08/2021
The Actual LOR1 Condition in the QLD Region advised in AEMO Electricity Market Notice No 90047 is cancelled at 1915 hrs 30/08/2021
Manager NEM Real Time Operations