Market Notices

112844RECLASSIFY CONTINGENCY28/12/2023 03:03:15 PM

Cancellation of a Non-Credible Contingency Event: Tarong - Halys No.8868 and No.8869 275 kV lines in QLD1 due to Bushfire.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.

Region: QLD1

Lines: Tarong - Halys No.8868 and No.8869 275 kV lines

Cancellation time: 28/12/2023 15:00

Constraint set(s) revoked:
Nil


Refer AEMO Electricity Market Notice 112837

Manager NEM Real Time Operations
112840RECLASSIFY CONTINGENCY28/12/2023 02:46:20 PM

Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin No.857 275 kV line and Ross - Chalumbin No.858 275 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: Ross - Chalumbin No.857 275 kV and Ross - Chalumbin No.858 275 kV

Duration: 28/12/2023 14:46 until further notice

Constraint set(s) invoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Auto-generated on behalf of Manager NEM Real Time Operations
112838RECLASSIFY CONTINGENCY28/12/2023 02:20:43 PM

Reclassification of Non-Credible Contingency Event : Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers in SA region 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 be more likely and reasonably possible. Accordingly AEMO has reclassified it as credible contingency event.

Region: SA1

Elements: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers

Duration: 28/12/2023 14:25 hrs until further notice

Constraint set(s) revoked: S-RBTU+SCON_N-2

Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1

Manager NEM Real Time Operations
112837RECLASSIFY CONTINGENCY28/12/2023 02:07:12 PM

Reclassification of a Non-Credible Contingency Event: Tarong - Halys No.8868 and No.8869 275kV lines in QLD due to bushfire.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.

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: QLD

Lines: Tarong - Halys No.8868 and No.8869 275kV lines in QLD

Duration: 28/12/2023 1400hrs until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
112836RECLASSIFY CONTINGENCY28/12/2023 02:06:03 PM

Reclassification of a Non-Credible Contingency Event: Tarong - Halys No.8870 and No.8871 275kV lines in QLD due to bushfire.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.

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: QLD

Lines: Tarong - Halys No.8870 and No.8871 275kV lines in QLD

Duration: 28/12/2023 1400hrs until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
112835RECLASSIFY CONTINGENCY28/12/2023 12:35:05 PM

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

Duration: 28/12/2023 12:35 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
112834RECLASSIFY CONTINGENCY28/12/2023 12:35:14 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: 28/12/2023 12:35 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
112832RECLASSIFY CONTINGENCY27/12/2023 09:09:30 PM

Cancellation 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

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: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE

Cancellation time: 27/12/2023 21:09

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 112830

Auto-generated on behalf of Manager NEM Real Time Operations
112831RECLASSIFY CONTINGENCY27/12/2023 08:42:00 PM

Cancellation of the reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No. 7208 and Collinsville North - Clare South Tee King Creek No. 7128 132 kV lines in QLD.

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a non-credible contingency event as a credible contingency event.

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: QLD

Lines: Strathmore - Clare South No. 7208 and Collinsville North - Clare South Tee King Creek No. 7128 132 kV lines

Cancellation time: 2030 hrs 27/12/2023
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 112794

Manager NEM Real Time Operations
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