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Cancellation of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Cancellation time: 03/09/2020 18:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 77480
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 03/09/2020 18:14
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 77465
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 due to Lightning.
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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Duration: 03/09/2020 17:51 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Farrell-Sheffield No.1 220 kV line and Farrell-Sheffield No.2 220 kV line in TAS1 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: TAS1
Lines: Farrell-Sheffield No.1 220 kV and Farrell-Sheffield No.2 220 kV
Cancellation time: 03/09/2020 17:49
Constraint set(s) revoked:
T-FASH_N-2_CP4_S4 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 77468
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Farrell-John Butters line and Farrell-Rosebery-Newton-Queenstown line in TAS1 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: TAS1
Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown
Cancellation time: 03/09/2020 17:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 77467
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation - Inter-regional transfer limit variation - VIC to NSW Interconnector - Voltage Control.
Cancellation - Inter-regional transfer limit variation - VIC to NSW Interconnector - Voltage Control.
Refer AEMO Electricity Market Notices. 77456
Voltage control issues across the VIC to NSW Interconnection are no longer present.
The following constraint set has been revoked.
I-VN_1100 revoked 2000 hrs
The constraint set contains equations with the following interconnector on the LHS.
VIC1-NSW1
Manager NEM Real Time Operations
CHG0060236 : Planned System Maintenance - STTM Production Systems - Active Site Windows Patching in Norwest - Rescheduled
Notification issued to: Market Notice
Notification Type: Rescheduled
Change Type: Normal
Service/ Component: Short Term Trading Market
Change Title: Planned System Maintenance - STTM Production Systems - Active Site Windows Patching in Norwest
Change Start Date & Time: 10/09/2020 17:30:00 AEST
Change End Date & Time: 10/09/2020 22:30:00 AEST
Outage Start Date & Time: 10/09/2020 18:30:00 AEST
Outage End Date & Time: 10/09/2020 21:30:00 AEST
Change Description:
Maintenance is to be performed on the Production STTM to increase reliability, security and stability of the system. During the maintenance, there will be an outage to the application as per the times mentioned.
Environment: Production
Participant Impact and Requirements:
There will be no access to the Production STTM systems for the duration of the outage. Please access outside these hours.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Direction - SA region - 03/09/2020
Direction - SA region - 03/09/2020
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA 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 1645 hrs on 03/09/2020.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 02/09/2020
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 02/09/2020
Refer Market Notice 77427
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 03/09/2020
Manager NEM Real Time Operations