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115124RECLASSIFY CONTINGENCY25/02/2024 09:55:06 PM
Reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 kV 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV
Duration: 25/02/2024 21:55 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV
Duration: 25/02/2024 21:55 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115123RECLASSIFY CONTINGENCY25/02/2024 09:55:06 PM
Reclassification 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
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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 25/02/2024 21:55 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 25/02/2024 21:55 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115122RECLASSIFY CONTINGENCY25/02/2024 09:55:05 PM
Reclassification 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
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: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 25/02/2024 21:55 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: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 25/02/2024 21:55 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115121RECLASSIFY CONTINGENCY25/02/2024 08:59:15 PM
Reclassification of a Non-Credible Contingency Event: Strathmore - Clare South No.7208 132 kV line and Strathmore - Clare South tee King Creek No.7128 132 kV 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV
Duration: 25/02/2024 20:59 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: Strathmore - Clare South No.7208 132 kV and Strathmore - Clare South tee King Creek No.7128 132 kV
Duration: 25/02/2024 20:59 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115120INTER-REGIONAL TRANSFER25/02/2024 07:46:45 PM
Inter-regional transfer limit variation - Moorabool Sydenham No1 500 kV line - Vic region - 25/02/2024
AEMO ELECTRICITY MARKET NOTICE
At 1929 hrs 25/02/2024 in the Victoria region the Moorabool Sydenham No1 500 kV line returned to service on temporary towers.
The Moorabool Sydenham No2 500 kV line remains out of service
Constraint set changes.
Invoked:
V-MLSY_NOEMTT_R
Revoked:
V-X_MLSY_MLTS_TIE
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer Market Notices 114577, 114768, 114686 and 114770
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
At 1929 hrs 25/02/2024 in the Victoria region the Moorabool Sydenham No1 500 kV line returned to service on temporary towers.
The Moorabool Sydenham No2 500 kV line remains out of service
Constraint set changes.
Invoked:
V-MLSY_NOEMTT_R
Revoked:
V-X_MLSY_MLTS_TIE
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer Market Notices 114577, 114768, 114686 and 114770
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
115119MARKET INTERVENTION25/02/2024 05:28:14 PM
Possible intervention to manage power system security in SA Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in SA Region
The synchronous generating units currently expected to be synchronised in SA from 0100 hrs 27/02/2024 will be inadequate to maintain a secure operating state in SA.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Possible intervention to manage power system security in SA Region
The synchronous generating units currently expected to be synchronised in SA from 0100 hrs 27/02/2024 will be inadequate to maintain a secure operating state in SA.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
115118SETTLEMENTS RESIDUE25/02/2024 03:00:24 PM
[EventId:202402251500_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 25 February 2024 15:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 25 February 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 February 2024.
Refer to market notice: 115112
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1500 hrs on 25 February 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1500 hrs on 25 February 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 25 February 2024.
Refer to market notice: 115112
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1500 hrs on 25 February 2024.
This is an AEMO autogenerated Market Notice.
115117MARKET INTERVENTION25/02/2024 05:25:17 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 24/02/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 24/02/2024
Refer Market Notice 115081
The AEMO Intervention Event and all associated directions are cancelled from 1730 hrs 25/02/2024
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 24/02/2024
Refer Market Notice 115081
The AEMO Intervention Event and all associated directions are cancelled from 1730 hrs 25/02/2024
Manager NEM Real Time Operations
115114RESERVE NOTICE25/02/2024 02:32:31 PM
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 29/02/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 115087 has been updated at 1430 hrs 25/02/2024 to the following:
[1.] From 1800 hrs 29/02/2024 to 1900 hrs 29/02/2024.
The forecast capacity reserve requirement is 1255 MW.
The minimum capacity reserve available is 1152 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 115087 has been updated at 1430 hrs 25/02/2024 to the following:
[1.] From 1800 hrs 29/02/2024 to 1900 hrs 29/02/2024.
The forecast capacity reserve requirement is 1255 MW.
The minimum capacity reserve available is 1152 MW.
Manager NEM Real Time Operations