Market Notices

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the NSW region - 13/12/2024

The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.121872 is cancelled at 1915 hrs 13/12/2024.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 13/12/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1830 hrs

The capacity reserve requirement is 1370 MW
The minimum capacity reserve available is 1359 MW

Manager NEM Real Time Operations

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 North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Cancellation time: 13/12/2024 17:44

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 121832

Auto-generated on behalf of Manager NEM Real Time Operations

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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV

Duration: 13/12/2024 16:41 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

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: 13/12/2024 15:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 121835

Auto-generated on behalf of Manager NEM Real Time Operations

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 - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line

Duration: 13/12/2024 15:25 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

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: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line

Duration: 13/12/2024 13:14 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

AEMO ELECTRICITY MARKET NOTICE.

Update - Lightning vulnerable lines in QLD region

Refer to AEMO Electricity Market Notice 121840

Fix typo: Line 7141 should read Line 7143

At 2026 hrs 12/12/2024 the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 tripped.

The cause of the trip was identified as due to lightning.

In accordance with SO_OP_3715, AEMO now considers the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 to be vulnerable with a category of probable due to lightning.

Manager NEM Real Time Operations

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: QLD

Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines
Duration: 13/12/2024 13:07 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations