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Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 11/12/2024 03:49
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 121706
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 11/12/2024 01:45 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
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region beginning on 16/12/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121694 has been updated at 1900 hrs 10/12/2024 to the following:
[1.] From 1700 hrs 16/12/2024 to 1900 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 318 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
Update - Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 10 Dec 2024
Refer to MN 121688
In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs to 1510 hrs.
This constraint set contains equations with the following interconnector on the LHS;
NSW1-QLD1, N-Q_MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/12/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121687 has been updated at 1400 hrs 10/12/2024 to the following:
1. From 1630 hrs to 1930 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 277 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 10 Dec 2024
In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
NSW1-QLD1, N-Q_MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
STPASA - Update and correction of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/12/2024
Correction to Market Notice 121686, the external reference for the forecast LOR2 in the NSW region should read: 16/12/2024.
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121686 has been updated at 1200 hrs 10/12/2024 to the following:
1. From 1730 hrs to 1830 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 592 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/10/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121683 has been updated at 0800hrs 10/12/2024 to the following:
1. From 1700 hrs to 1900 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 336 MW.
AEMO is seeking a market response.
AEMO Operations
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/12/2024
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following periods:
[1.] From 1730 hrs 16/12/2024 to 1830 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 587 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations