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116572RECLASSIFY CONTINGENCY10/05/2024 10:13:53 AM
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.
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
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.
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
116571NON-CONFORMANCE10/05/2024 10:05:15 AM
NON-CONFORMANCE Region QLD1 Friday, 10 May 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Friday, 10 May 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: OAKEY2SF
Duration: 10/05/2024 08:35 to 10/05/2024 10:05
Amount: 35 MW
Constraint: NC-Q_OAKEY2SF
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Friday, 10 May 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: OAKEY2SF
Duration: 10/05/2024 08:35 to 10/05/2024 10:05
Amount: 35 MW
Constraint: NC-Q_OAKEY2SF
Auto-generated on behalf of Manager NEM Real Time Operations
116557RECLASSIFY CONTINGENCY09/05/2024 01:58:22 PM
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer - Qld region.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following elements to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Duration: 1400 hrs 09/05/2024 until further notice
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following elements to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Duration: 1400 hrs 09/05/2024 until further notice
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
116518RECLASSIFY CONTINGENCY08/05/2024 01:09:54 AM
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: 08/05/2024 01:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 116517
Auto-generated on behalf of Manager NEM Real Time Operations
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: 08/05/2024 01:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 116517
Auto-generated on behalf of Manager NEM Real Time Operations
116517RECLASSIFY CONTINGENCY08/05/2024 12:07:25 AM
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: 08/05/2024 00:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: 08/05/2024 00:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
116487RECLASSIFY CONTINGENCY05/05/2024 06:19:50 PM
Cancellation 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
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 05/05/2024 18:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 116484
Auto-generated on behalf of Manager NEM Real Time Operations
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: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 05/05/2024 18:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 116484
Auto-generated on behalf of Manager NEM Real Time Operations
116484RECLASSIFY CONTINGENCY05/05/2024 03:15:06 PM
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: 05/05/2024 15:15 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: 05/05/2024 15:15 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
116448NON-CONFORMANCE03/05/2024 07:10:20 AM
NON-CONFORMANCE Region VIC1 Friday, 3 May 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Friday, 3 May 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: YWPS3
Duration: 03/05/2024 07:00 to 03/05/2024 07:10
Amount: -45 MW
Constraint: NC-V_YWPS3
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Friday, 3 May 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: YWPS3
Duration: 03/05/2024 07:00 to 03/05/2024 07:10
Amount: -45 MW
Constraint: NC-V_YWPS3
Auto-generated on behalf of Manager NEM Real Time Operations
116447NON-CONFORMANCE03/05/2024 06:35:20 AM
NON-CONFORMANCE Region NSW1 Friday, 3 May 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Friday, 3 May 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BW04
Duration: 03/05/2024 06:20 to 03/05/2024 06:35
Amount: -43 MW
Constraint: NC-N_BW04
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Friday, 3 May 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BW04
Duration: 03/05/2024 06:20 to 03/05/2024 06:35
Amount: -43 MW
Constraint: NC-N_BW04
Auto-generated on behalf of Manager NEM Real Time Operations