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PDPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 14/12/2023
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112279 has been updated at 1015 hrs to the following:
[1.] From 1730 hrs 14/12/2023 to 1800 hrs 14/12/2023.
The forecast capacity reserve requirement is 714 MW.
The minimum capacity reserve available is 597 MW.
AEMO is seeking a market response.
AEMO estimates the latest time at which it would need to intervene through an AEMO intervention event is 1630 hrs on 14/12/2023.
Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 14/12/2023
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 112280 has been updated at 0930 hrs to the following:
[1.] From 1600 hrs 14/12/2023 to 1700 hrs 14/12/2023.
The forecast capacity reserve requirement is 1380 MW.
The minimum capacity reserve available is 867 MW.
[2.] From 1800 hrs 14/12/2023 to 2000 hrs 14/12/2023.
The forecast capacity reserve requirement is 1380 MW.
The minimum capacity reserve available is 775 MW.
Manager NEM Real Time Operations
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 14/12/2023
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 112277 is cancelled at 0930 hrs 14/12/2023.
Manager NEM Real Time Operations
Cancellation - Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region - 14/12/2023
Cancellation - Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region - 14/12/2023
Refer to MN 112295
Based on advice from the asset owner, AEMO no longer considers the simultaneous trip of all the generators at Darling Downs Power Station as a credible contingency event.
Therefore AEMO cancels the reclassification as a credible contingency event from 0935 hrs 14/12/2023.
Constraint set Q-DARLING_DOWNS_N-2 invoked from 0745 hrs 14/12/2023 to 0935 hrs 14/12/2023
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region 14/12/2023
Reclassification of a Non-Credible Contingency Event: Darling Downs Power Station in Queensland Region 14/12/2023
Based on advice from the asset owner, AEMO has declared the simultaneous trip of all the generators at Darling Downs Power Station as a credible contingency event.
AEMO considers the simultaneous trip of those generators to now be more likely.
AEMO has reclassified this as a credible contingency event from 0745 hrs 14/12/2023.
To manage power system security constraint set Q-DARLING_DOWNS_N-2 invoked from 0745 hrs 14/12/2023 until further notice.
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 14/12/2023 07:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 112292
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV 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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 14/12/2023 06:19
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 112286
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 14/12/2023 05:23 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: Lindisfarne - Mornington No.1 TEE line and Lindisfarne - Mornington No.2 TEE 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: Lindisfarne - Mornington No.1 TEE and Lindisfarne - Mornington No.2 TEE
Cancellation time: 14/12/2023 04:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 112285
Auto-generated on behalf of Manager NEM Real Time Operations