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79742MARKET INTERVENTION09/11/2020 11:18:46 PM
Direction - Tas Region 09/11/2020
AEMO ELECTRICITY MARKET NOTICE.
Direction - Tas Region 09/11/2020
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the Tasmania region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 2310 hrs on 09/11/2020.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - Tas Region 09/11/2020
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the Tasmania region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 2310 hrs on 09/11/2020.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
79736INTER-REGIONAL TRANSFER09/11/2020 05:52:38 AM
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500 kV Line (Vic) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500 kV Line (Vic) - Voltage Control
Refer AEMO Electricity Market Notice 79704
The Hazelwood - South Morang No. 1 500 kV Line has been returned to service.
The following constraint set was revoked at 0520 hrs 09/11/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500 kV Line (Vic) - Voltage Control
Refer AEMO Electricity Market Notice 79704
The Hazelwood - South Morang No. 1 500 kV Line has been returned to service.
The following constraint set was revoked at 0520 hrs 09/11/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
79731INTER-REGIONAL TRANSFER08/11/2020 09:54:19 AM
Cancellation - Inter-regional transfer limit variation - Tarong - Blackwall (875) 275kV Line (Qld) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Refer to Market Notice 79727
The Tarong - Blackwall (875) 275kV Line has been returned to service.
The following constraint set was revoked at 0740 hrs.
Q-TRBK
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Refer to Market Notice 79727
The Tarong - Blackwall (875) 275kV Line has been returned to service.
The following constraint set was revoked at 0740 hrs.
Q-TRBK
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
79730INTER-REGIONAL TRANSFER08/11/2020 09:53:38 AM
Cancellation - Inter-regional transfer limit variation - Greenbank - Middle Ridge (8848) 275kV Line (Qld) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Refer to Market Notice 79728
The Greenbank - Middle Ridge (8848) 275kV Line has been returned to service.
The following constraint set was revoked at 0740 hrs.
Q-MRGB_8848_8849
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Refer to Market Notice 79728
The Greenbank - Middle Ridge (8848) 275kV Line has been returned to service.
The following constraint set was revoked at 0740 hrs.
Q-MRGB_8848_8849
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
79729NON-CONFORMANCE08/11/2020 08:20:16 AM
NON-CONFORMANCE Region NSW1 Sunday, 8 November 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Sunday, 8 November 2020
AEMO declared a schedule generating unit non-conforming
Unit: DARLSF1
Duration: 08/11/2020 08:05 to 08/11/2020 08:20
Amount: 12 MW
Constraint: NC-N_DARLSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Sunday, 8 November 2020
AEMO declared a schedule generating unit non-conforming
Unit: DARLSF1
Duration: 08/11/2020 08:05 to 08/11/2020 08:20
Amount: 12 MW
Constraint: NC-N_DARLSF1
Auto-generated on behalf of Manager NEM Real Time Operations
79728INTER-REGIONAL TRANSFER08/11/2020 03:25:55 AM
Inter-regional transfer limit variation - Greenbank to Middle Ridge (8848) 275kV Transmission Line (Qld) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Greenbank to Middle Ridge (8848) 275kV Transmission Line (Qld) - Voltage Control
The Greenbank to Middle Ridge (8848) 275kV Transmission Line has been de-energised to manage voltages in the Qld region.
Constraint set Q-MRGB_8848_8849 invoked at 0320 hrs 08/11/2020
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Refer to AEMO Network Outage Schedule for further details.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Greenbank to Middle Ridge (8848) 275kV Transmission Line (Qld) - Voltage Control
The Greenbank to Middle Ridge (8848) 275kV Transmission Line has been de-energised to manage voltages in the Qld region.
Constraint set Q-MRGB_8848_8849 invoked at 0320 hrs 08/11/2020
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Refer to AEMO Network Outage Schedule for further details.
Manager NEM Real Time Operations
79727INTER-REGIONAL TRANSFER08/11/2020 03:17:14 AM
Inter-regional transfer limit variation - Tarong to Blackwall (875) 275kV Transmission Line (Qld) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tarong to Blackwall (875) 275kV Transmission Line (Qld) - Voltage Control
The Tarong - Blackwall (875) 275kV Line has been de-energised to manage voltages in the QLD region.
Constraint set Q-TRBK invoked at 0305 hrs 08/11/2020.
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tarong to Blackwall (875) 275kV Transmission Line (Qld) - Voltage Control
The Tarong - Blackwall (875) 275kV Line has been de-energised to manage voltages in the QLD region.
Constraint set Q-TRBK invoked at 0305 hrs 08/11/2020.
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
79726RECLASSIFY CONTINGENCY07/11/2020 11:14:15 PM
Cancellation of a Non-Credible Contingency Event: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV line and Goonyella - Newlands No. 7155 132 kV 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: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV and Goonyella - Newlands No. 7155 132 kV
Cancellation time: 07/11/2020 23:14
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 79724
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: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV and Goonyella - Newlands No. 7155 132 kV
Cancellation time: 07/11/2020 23:14
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 79724
Auto-generated on behalf of Manager NEM Real Time Operations
79724RECLASSIFY CONTINGENCY07/11/2020 08:10:21 PM
Reclassification of a Non-Credible Contingency Event: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV line and Goonyella - Newlands No. 7155 132 kV 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: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV and Goonyella - Newlands No. 7155 132 kV
Duration: 07/11/2020 20:10 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: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV and Goonyella - Newlands No. 7155 132 kV
Duration: 07/11/2020 20:10 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations