Market Notices

122371RECLASSIFY CONTINGENCY21/12/2024 03:24:20 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: 21/12/2024 15:24

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 122367

Auto-generated on behalf of Manager NEM Real Time Operations
     
122369MINIMUM SYSTEM LOAD21/12/2024 02:45:39 PM

Forecast Minimum System Load MSL2 condition in the VIC Region on 22/12/2024

AEMO ELECTRICITY MARKET NOTICE
Forecast Minimum System Load MSL2 condition in the VIC Region on 22/12/2024

Update to Market Notice 122341 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC on 22/12/2024.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
- MSL1 - 1825 MW
- MSL2 - 1325 MW
- MSL3 - 825 MW

The regional demand is forecast to be below the MSL2 threshold for the following period[s]:
- From 1230 hrs 22/12/2024 to 1300 hrs 22/12/2024. Minimum regional demand is forecast to be 1314 MW at 1300 hrs.


Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .

AEMO is seeking a market response.


Manager NEM Real Time Operations
     
122368RECLASSIFY CONTINGENCY21/12/2024 02:28:51 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: 21/12/2024 14:28 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
122367RECLASSIFY CONTINGENCY21/12/2024 02:23:46 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: 21/12/2024 14:23 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
122358RECLASSIFY CONTINGENCY21/12/2024 01:06:16 PM

Reclassification of a Non-Credible Contingency Event: Guybal Munjan - Chalumbin 857 275kV line line and Guybal Munjan - Chalumbin 858 275kV 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: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line

Duration: 21/12/2024 13:06 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
     
122349RECLASSIFY CONTINGENCY21/12/2024 12:41:55 PM

Reclassification of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 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: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line

Duration: 21/12/2024 12:41 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
122344MINIMUM SYSTEM LOAD21/12/2024 08:57:33 AM

Cancellation of Forecast Minimum System Load (MSL) MSL1 event in the VIC Region on 21/12/2024.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Forecast Minimum System Load (MSL) MSL1 event in the VIC Region on 21/12/2024.

Cancellation - Forecast MSL1- VIC Region at 0900 hrs 21/12/2024.

Refer to Market Notice 122109 for MSL1.

Manager NEM Real Time Operations
     
122342RECLASSIFY CONTINGENCY21/12/2024 05:38:01 AM

Cancellation of a Non-Credible Contingency Event: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines in QLD 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: QLD

Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines

Cancellation time: 21/12/2024 05:30

Constraint set(s) invoked: Nil

Refer AEMO Electricity Market Notice 122339

Manager NEM Real Time Operations
     
122341MINIMUM SYSTEM LOAD21/12/2024 03:08:02 AM

Forecast Minimum System Load MSL2 condition in the VIC Region on 22/12/2024

AEMO ELECTRICITY MARKET NOTICE
Forecast Minimum System Load MSL2 condition in the VIC Region on 22/12/2024

AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC on 22/12/2024.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
- MSL1 - 1825 MW
- MSL2 - 1325 MW
- MSL3 - 825 MW

The regional demand is forecast to be below the MSL2 threshold for the following period[s]:
- From 1200 hrs 22/12/2024 to 1330 hrs 22/12/2024. Minimum regional demand is forecast to be 1276 MW at 1300 hrs.

Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .


Manager NEM Real Time Operations
     
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