Market Notices

111978RECLASSIFY CONTINGENCY03/12/2023 07:00:15 PM

Cancellation of a Non-Credible Contingency Event: Woree -Tumoulin No.877 275 kV line and Chalumbin - Turkinje No.7166 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: Woree -Tumoulin No.877 275 kV line and Chalumbin - Turkinje No.7166 132 kV line

Cancellation time: 03/12/2023 19:00

Constraint set(s) revoked: NONE

Refer AEMO Electricity Market Notice 111960

Manager NEM Real Time Operations
111977RECLASSIFY CONTINGENCY03/12/2023 06:48:55 PM

Cancellation of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 03/12/2023 18:48

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 111975

Auto-generated on behalf of Manager NEM Real Time Operations
111975RECLASSIFY CONTINGENCY03/12/2023 05:47:10 PM

Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Duration: 03/12/2023 17:47 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
111974RECLASSIFY CONTINGENCY03/12/2023 05:30:10 PM

Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Duration: 03/12/2023 17:30 until further notice

Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


Auto-generated on behalf of Manager NEM Real Time Operations
111972RECLASSIFY CONTINGENCY03/12/2023 05:08:55 PM

Cancellation of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 03/12/2023 17:08

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 111958

Auto-generated on behalf of Manager NEM Real Time Operations
111971INTER-REGIONAL TRANSFER03/12/2023 04:38:17 PM

Inter-regional transfer limit variation - H2 South Pine 275kV SVC - QLD region - 03/12/2023

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - H2 South Pine 275kV SVC - QLD region - 03/12/2023

At 1626 hrs 03/12/2023 there was an unplanned outage of H2 South Pine 275kV SVC.

The following constraint set(s) invoked at 1630 hrs 03/12/2023
Q-SP_VC

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
111965RECLASSIFY CONTINGENCY03/12/2023 03:28:22 PM

Reclassification of a Non-Credible Contingency Event to a Credible Contingency Event: Kareeya Power Station in Queensland Region 03/12/2023

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event to a Credible Contingency Event: Kareeya Power Station in Queensland Region 03/12/2023

Based on advice from the asset owner, AEMO has declared the simultaneous trip of Units 1,2,3 and 4 at Kareeya Power Station as a credible contingency event.

AEMO considers the simultaneous trip of Units 1,2,3 and 4 to now be more likely.

AEMO has reclassified this as a credible contingency event from 1500 hrs 03/12/2023 until further notice.

Constraint set(s) invoked: None


Manager NEM Real Time Operations
111963RECLASSIFY CONTINGENCY03/12/2023 01:55:35 PM

Reclassification of a Non-Credible Contingency Event: Collinsville - Stoney Creek 7306 132KV LINE line and Collinsville - Newlands 7121 132KV LINE 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: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE

Duration: 03/12/2023 13:55 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
111960RECLASSIFY CONTINGENCY03/12/2023 01:35:23 PM

Reclassification of a Non-Credible Contingency Event: Woree -Tumoulin No.877 275 kV line and Chalumbin - Turkinje No.7166 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: Woree -Tumoulin No.877 275 kV line and Chalumbin - Turkinje No.7166 132 kV line

Duration: 03/12/2023 13:30 until further notice

Constraint set(s) invoked: None

Manager NEM Real Time Operations
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