Market Notices

93014RECLASSIFY CONTINGENCY07/12/2021 09:34:05 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: 07/12/2021 21:34

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 93012

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93013RECLASSIFY CONTINGENCY07/12/2021 09:14:20 PM

Reclassification of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV 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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV

Duration: 07/12/2021 21:14 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
93012RECLASSIFY CONTINGENCY07/12/2021 07:30:55 PM

Reclassification 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

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

Duration: 07/12/2021 19:30 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
93011RECLASSIFY CONTINGENCY07/12/2021 07:30:55 PM

Reclassification of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV line in NSW1 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: NSW1

Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV

Duration: 07/12/2021 19:30 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
93010RECLASSIFY CONTINGENCY07/12/2021 06:49:08 PM

Cancellation of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 & No.3 220 kV Lines line and Numurkah Solar Farm line in VIC1 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: VIC1

Lines: Dederang - Glenrowan No.1 & No.3 220 kV Lines and Numurkah Solar Farm

Cancellation time: 07/12/2021 18:49

Constraint set(s) revoked:
V-NIL_DDGN_NSF_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1


Refer AEMO Electricity Market Notice 92996

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93009MARKET INTERVENTION07/12/2021 06:46:25 PM

Update - Direction - SA Region - 01/12/2021

AEMO ELECTRICITY MARKET NOTICE

Update - Direction - SA Region - 01/12/2021

Refer Market Notice 92850

The AEMO intervention event that commenced from interval ending 1605 hrs on 01/12/2021 is continuing.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.

Manager NEM Real Time Operations
     
93005RECLASSIFY CONTINGENCY07/12/2021 05:54:05 PM

Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1

Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV

Cancellation time: 07/12/2021 17:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 92993

Auto-generated on behalf of Manager NEM Real Time Operations
     
93004RESERVE NOTICE07/12/2021 05:21:14 PM

PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 07/12/2021

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the Tas region advised in AEMO Electricity Market Notice No. 92999 is cancelled at 1630 hrs 07/12/2021

Manager NEM Real Time Operations
     
93003RECLASSIFY CONTINGENCY07/12/2021 05:22:02 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Loss of any one 220 kV bus at Gordon Substation in TAS1 .

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event .

Based on TNSP advice received, AEMO no longer considers the trip of any one 220 kV bus at Gordon Substation as a credible contingency when there is lightning activity in the vicinity.

Accordingly the reclassification as a credible contingency is cancelled .


Region: TAS1

Element: Gordon Substation A or B or C 220 kV bus

Cancellation time: 07/12/2021 1530 hrs

Constraint set(s) revoked: NONE

Refer AEMO Electricity Market Notices 90307 and 90345

Manager NEM Real Time Operations
     
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