Market Notices

116298RECLASSIFY CONTINGENCY23/04/2024 11:34:10 PM

Cancellation of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and line in TAS1 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: TAS1

Lines: Palmerston - Hadspen 3 & 4 110kV and

Cancellation time: 23/04/2024 23:33

Constraint set(s) revoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 116296

Auto-generated on behalf of Manager NEM Real Time Operations
     
116297RECLASSIFY CONTINGENCY23/04/2024 10:34:01 PM

Cancellation of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 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: TAS1

Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Cancellation time: 23/04/2024 22:33

Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1


Refer AEMO Electricity Market Notice 116295

Auto-generated on behalf of Manager NEM Real Time Operations
     
116296RECLASSIFY CONTINGENCY23/04/2024 10:28:55 PM

Reclassification of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and line in TAS1 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: TAS1

Lines: Palmerston - Hadspen 3 & 4 110kV and

Duration: 23/04/2024 22:28 until further notice

Constraint set(s) invoked:
T-HAPM_110_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
     
116295RECLASSIFY CONTINGENCY23/04/2024 09:33:41 PM

Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 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: TAS1

Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Duration: 23/04/2024 21:33 until further notice

Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1


Auto-generated on behalf of Manager NEM Real Time Operations
     
116275INTER-REGIONAL TRANSFER23/04/2024 08:52:22 AM

Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024

At 0837 hrs 23/04/2024 there was an unplanned outage of Para No 1 SVC.

Constraint set(s) invoked: S-PA_VC1


This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,V-S-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
116272INTER-REGIONAL TRANSFER22/04/2024 02:55:17 PM

Inter-regional transfer limit variation -Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024

A planned outage of Liddell - Tomago 82 330kV Line in the NSW region was scheduled from 0600 hrs 03/04/2024 to 1700 hrs 22/04/2024.

The outage has been completed and Liddell - Tomago 82 330kV Line returned to service at 1450 hrs 22/04/2024

Constraint set(s) revoked: N-LDTM_82_OPEN

Manager NEM Real Time Operations
     
116271RECLASSIFY CONTINGENCY22/04/2024 01:44:46 PM

Cancellation of the reclassification of a Non-Credible contingency event: Farrell - Sheffield Nos 1 and 2 220kV Lines line in TAS due to Bushfire.

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the 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. There is no longer any non credible event activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: TAS

Lines: Farrell - Sheffield Nos 1 and 2 220kV Lines
Cancellation time: 13:40 hrs 22/04/2024

Constraint set(s) revoked:
T-FASH_N-2_CP4_SB
T-NIL_WCP_CLOSE

Refer AEMO Electricity Market Notice 116269

Manager NEM Real Time Operations
     
116270INTER-REGIONAL TRANSFER22/04/2024 01:32:54 PM

Inter-regional transfer limit variation - Farrell - Sheffield Nos 1 and 2 220kV Lines - TAS region - 22/04/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Farrell - Sheffield Nos 1 and 2 220kV Lines - TAS region - 22/04/2024

At 1315 hrs 22/04/2024 there was an unplanned outage of Farrell - Sheffield Nos 1 and 2 220kV Lines.

The following constraint set(s) invoked at 1315 hrs 22/04/2024
T-X_FASH_C

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
116269RECLASSIFY CONTINGENCY22/04/2024 01:05:20 PM

Reclassification of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and 2 220kV Lines in TAS 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: TAS

Lines: Farrell - Sheffield No. 1 and 2 220kV Lines

Duration:12:50 hrs 22/04/2024 until further notice

Constraint set(s) invoked:
T-NIL_WCP_CLOSE
F-FASH_N-2_CP4_SB

Manager NEM Real Time Operations
     
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