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127507RECLASSIFY CONTINGENCY11/06/2025 10:24:10 PM
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.
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 11/06/2025 22:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127506
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 11/06/2025 22:24
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 127506
Auto-generated on behalf of Manager NEM Real Time Operations
127506RECLASSIFY CONTINGENCY11/06/2025 09:23:01 PM
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.
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 11/06/2025 21:22 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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Duration: 11/06/2025 21:22 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
127503INTER-REGIONAL TRANSFER11/06/2025 06:24:21 PM
Cancellation- Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 11/06/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation- Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 11/06/2025
Refer AEMO Electricity Market Notice 127501
In order to maintain the power system in a secure operating state in the NSW region, AEMO invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until 1810 hrs.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Manager NEM Real Time Operations
Cancellation- Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 11/06/2025
Refer AEMO Electricity Market Notice 127501
In order to maintain the power system in a secure operating state in the NSW region, AEMO invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until 1810 hrs.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Manager NEM Real Time Operations
127501INTER-REGIONAL TRANSFER11/06/2025 06:01:39 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 11/06/2025
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Manager NEM Real Time Operations
127498RESERVE NOTICE11/06/2025 05:04:31 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 12/06/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 127494 is cancelled at 1700 hrs 11/06/2025.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 127494 is cancelled at 1700 hrs 11/06/2025.
Manager NEM Real Time Operations
127497RESERVE NOTICE11/06/2025 05:05:52 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 11/06/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following Period:
[1.] From 1700 hrs 11/06/2025 to 1930 hrs 11/06/2025.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 638 MW.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following Period:
[1.] From 1700 hrs 11/06/2025 to 1930 hrs 11/06/2025.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 638 MW.
Manager NEM Real Time Operations
127496INTER-REGIONAL TRANSFER11/06/2025 04:25:53 PM
Inter-regional transfer limit variation - Collector - Yass (3L) 330kV line - NSW region - 11/06/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Collector - Yass (3L) 330kV line - NSW region - 11/06/2025
A planned outage of Collector - Yass (3L) 330kV line in the NSW region was scheduled from 0700 hrs 10/06/2025 to 1500 hrs 16/06/2025.
The outage has been completed and Collector - Yass (3L) 330kV line returned to service at 1611 hrs 11/06/2025
Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Collector - Yass (3L) 330kV line - NSW region - 11/06/2025
A planned outage of Collector - Yass (3L) 330kV line in the NSW region was scheduled from 0700 hrs 10/06/2025 to 1500 hrs 16/06/2025.
The outage has been completed and Collector - Yass (3L) 330kV line returned to service at 1611 hrs 11/06/2025
Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE
Manager NEM Real Time Operations
127495RESERVE NOTICE11/06/2025 03:06:50 PM
STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 17/06/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
1. From 1100 hrs to 1130 hrs 17/06/2025.
The forecast capacity reserve requirement is 440 MW.
The minimum capacity reserve available is 339 MW.
2. From 1400 hrs to 1430 hrs 17/06/2025.
The forecast capacity reserve requirement is 500 MW.
The minimum capacity reserve available is 371 MW.
AEMO Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
1. From 1100 hrs to 1130 hrs 17/06/2025.
The forecast capacity reserve requirement is 440 MW.
The minimum capacity reserve available is 339 MW.
2. From 1400 hrs to 1430 hrs 17/06/2025.
The forecast capacity reserve requirement is 500 MW.
The minimum capacity reserve available is 371 MW.
AEMO Operations
127494RESERVE NOTICE11/06/2025 01:14:31 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 12/06/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Period:
[1.] From 1730 hrs 12/06/2025 to 1930 hrs 12/06/2025.
The forecast capacity reserve requirement is 1734 MW.
The minimum capacity reserve available is 1441 MW.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Period:
[1.] From 1730 hrs 12/06/2025 to 1930 hrs 12/06/2025.
The forecast capacity reserve requirement is 1734 MW.
The minimum capacity reserve available is 1441 MW.
Manager NEM Real Time Operations