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112422MARKET INTERVENTION16/12/2023 02:36:15 PM
Update - Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 112415
The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 17/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1500 hrs 16/12/2023, 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
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 112415
The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 17/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1500 hrs 16/12/2023, 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
112418MARKET INTERVENTION16/12/2023 04:37:22 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 15/12/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 15/12/2023
Refer Market Notice 112383
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 16/12/2023
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 15/12/2023
Refer Market Notice 112383
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 16/12/2023
Manager NEM Real Time Operations
112415MARKET INTERVENTION16/12/2023 12:51:01 PM
Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0630 hrs 17/12/2023 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
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 South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0630 hrs 17/12/2023 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
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
112405RECLASSIFY CONTINGENCY16/12/2023 11:45:55 AM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV 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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 16/12/2023 11:45 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 16/12/2023 11:45 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
112395RECLASSIFY CONTINGENCY15/12/2023 09:59:35 PM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV 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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 15/12/2023 21:59
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 112379
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 15/12/2023 21:59
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 112379
Auto-generated on behalf of Manager NEM Real Time Operations
112392RESERVE NOTICE15/12/2023 04:35:43 PM
STPASA - Update to the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 19/12/2023
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112390 has been updated at 1600 hrs 15/12/2023 to the following:
From 1430 hrs to 1600 hrs 19/12/2023.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 171 MW.
AEMO is seeking a market response.
AEMO estimates that the latest time at which permission can be given for a planned outage to proceed is 0530 hrs on 19/12/2023.
AEMO Operations
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112390 has been updated at 1600 hrs 15/12/2023 to the following:
From 1430 hrs to 1600 hrs 19/12/2023.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 171 MW.
AEMO is seeking a market response.
AEMO estimates that the latest time at which permission can be given for a planned outage to proceed is 0530 hrs on 19/12/2023.
AEMO Operations
112391RECLASSIFY CONTINGENCY15/12/2023 04:30:36 PM
Cancellation of a Reclassification of a Non-Credible Contingency Event: Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer in QLD Region
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.
Based on the advice from the asset owner, AEMO considers the trip of the Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer.
Cancellation time: 1630 hrs 15/12/2023
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 109794
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event in the Qld region.
Based on the advice from the asset owner, AEMO considers the trip of the Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: QLD
Elements: Ross No.1 275 kV SVC and Ross No.4 275/132 kV transformer.
Cancellation time: 1630 hrs 15/12/2023
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 109794
Manager NEM Real Time Operations
112390RESERVE NOTICE15/12/2023 03:53:54 PM
STPASA - Update to the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 19/12/2023
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112371 has been updated at 1500 hrs 15/12/2023 to the following:
From 1430 hrs to 1600 hrs 19/12/2023.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 273 MW.
AEMO is seeking a market response.
AEMO estimates that the latest time at which permission can be given for a planned outage to proceed is 0530 hrs on 19/12/2013.
AEMO Operations
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112371 has been updated at 1500 hrs 15/12/2023 to the following:
From 1430 hrs to 1600 hrs 19/12/2023.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 273 MW.
AEMO is seeking a market response.
AEMO estimates that the latest time at which permission can be given for a planned outage to proceed is 0530 hrs on 19/12/2013.
AEMO Operations
112388MARKET INTERVENTION15/12/2023 04:00:18 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 14/12/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 14/12/2023
Refer Market Notice 112326
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 15/12/2023
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 14/12/2023
Refer Market Notice 112326
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 15/12/2023
Manager NEM Real Time Operations