Market Notices

117724INTER-REGIONAL TRANSFER19/08/2024 09:54:20 PM

Inter-Regional Transfer limit variation - Murraylink

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Murraylink

There has been an unplanned outage of the Murraylink interconnector.

The following constraint set was invoked at 2155 hrs 19/08/2024

I-MURRAYLINK

The constraint set contains the following interconnector on the left hand side.

V-S-MNSP1,VIC1-NSW1

Refer to AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
117689RECLASSIFY CONTINGENCY15/08/2024 07:14:36 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: 15/08/2024 19:14

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 117683

Auto-generated on behalf of Manager NEM Real Time Operations
117683RECLASSIFY CONTINGENCY15/08/2024 05:11:11 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: 15/08/2024 17:11 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
117677INTER-REGIONAL TRANSFER14/08/2024 04:22:12 PM

Inter-Regional Transfer limit variation - Directlink - NSW Region

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink - NSW Region

There has been an unplanned outage of the No 1 Leg of Directlink .

The following constraint set was invoked at 1620 hrs 14/08/2024

N-MBTE_1

The constraint set contains the following interconnector on the left hand side.

N-Q-MNSP1

Refer AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
117672INTER-REGIONAL TRANSFER14/08/2024 11:08:17 AM

Inter-regional transfer limit variation - CollectorWF-Marulan 4 330kV LINE - NSW region - 14/08/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - CollectorWF-Marulan 4 330kV LINE - NSW region - 14/08/2024

At 1006 hrs 14/08/2024 there was a short notice outage of CollectorWF-Marulan 4 330kV LINE.

The following constraint set(s) invoked at 1000 hrs 14/08/2024
N-CTMN_4_WG_CLOSE

This constraint set(s) contains equations with the following interconnectors on the LHS.
VIC1-NSW1,N-Q-MNSP1,NSW1-QLD1,V-S-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
117671RECLASSIFY CONTINGENCY14/08/2024 08:45:51 AM

Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition - NEM region.

AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117660 is no longer reasonably possible and accordingly its classification has reverted to non-credible.

Cancellation time: 0845hrs 14/08/2024.

No constraints were invoked during this event

Manager NEM Real Time Operations
117669INTER-REGIONAL TRANSFER14/08/2024 08:05:49 AM

Inter-regional transfer limit variation - Collector - Marulan No 4 330kV Line - NSW region - 14/08/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Collector - Marulan No 4 330kV Line - NSW region - 14/08/2024

A planned outage of Collector - Marulan No 4 330kV Line in the NSW region was scheduled from 0800 hrs 14/08/2024 to 1700 hrs 02/09/2024.


The outage has been cancelled.

Constraint set(s) invoked: N-CTMN_4_WG_CLOSE


Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
117660RECLASSIFY CONTINGENCY12/08/2024 10:40:27 PM

Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - NEM regions

AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely Severe Space Weather Watch in the NEM regions.

AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.

Duration: 2230 hrs 12/08/2024 until further notice

Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).

Manager NEM Real Time Operations
117658RECLASSIFY CONTINGENCY12/08/2024 07:20:23 PM

Cancellation of the reclassification of a Non-Credible contingency event: Buronga - Balranald X3 220 kV line, Buronga - Red Cliffs 0X1 220 kV kV line and Buronga - Broken Hill X2 220 kV line in NSW

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 elements is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.

Region: NSW

Elements: Liddell - Buronga - Balranald X3 220 kV line, Buronga - Red Cliffs 0X1 220 kV kV line and Buronga - Broken Hill X2 220 kV line.

Cancellation time: 1915 hrs

Refer AEMO Electricity Market Notice 117595

Manager NEM Real Time Operations
X
Cookies help us improve your website experience.
By using our website, you agree to our use of cookies.
Confirm