Market Notices

122504RECLASSIFY CONTINGENCY27/12/2024 04:01:40 AM

Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV 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: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV

Duration: 27/12/2024 04:01 until further notice

Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1


Auto-generated on behalf of Manager NEM Real Time Operations
     
122503RECLASSIFY CONTINGENCY27/12/2024 03:59:23 AM

Cancellation of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 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: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV

Cancellation time: 27/12/2024 03:59

Constraint set(s) revoked:
V-ROYP78_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 122501

Auto-generated on behalf of Manager NEM Real Time Operations
     
122502RECLASSIFY CONTINGENCY27/12/2024 03:08:10 AM

Reclassification 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

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: VIC1

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

Duration: 27/12/2024 03:08 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
122501RECLASSIFY CONTINGENCY27/12/2024 02:55:49 AM

Reclassification of a Non-Credible Contingency Event: Yallourn - Rowville 7 220 kV line and Yallourn - Rowville 8 220 kV line in VIC1 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: VIC1

Lines: Yallourn - Rowville 7 220 kV and Yallourn - Rowville 8 220 kV

Duration: 27/12/2024 02:55 until further notice

Constraint set(s) invoked:
V-ROYP78_R_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
     
122500RECLASSIFY CONTINGENCY27/12/2024 02:04:36 AM

Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 27/12/2024 02:04 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
122499NON-CONFORMANCE27/12/2024 01:15:22 AM

NON-CONFORMANCE Region VIC1 Friday, 27 December 2024

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE VIC1 Region Friday, 27 December 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: LYA3
Duration: 27/12/2024 01:05 to 27/12/2024 01:15
Amount: 28 MW
Constraint: NC-V_LYA3

Auto-generated on behalf of Manager NEM Real Time Operations
     
122498RECLASSIFY CONTINGENCY26/12/2024 05:43:25 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: 26/12/2024 17:43

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 122494

Auto-generated on behalf of Manager NEM Real Time Operations
     
122497RECLASSIFY CONTINGENCY26/12/2024 05:43:20 PM

Cancellation 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

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: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 26/12/2024 17:43

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 122495

Auto-generated on behalf of Manager NEM Real Time Operations
     
122496NON-CONFORMANCE26/12/2024 04:20:19 PM

NON-CONFORMANCE Region VIC1 Thursday, 26 December 2024

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE VIC1 Region Thursday, 26 December 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: LYA4
Duration: 26/12/2024 16:00 to 26/12/2024 16:20
Amount: -13 MW
Constraint: NC-V_LYA4

Auto-generated on behalf of Manager NEM Real Time Operations
     
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