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115488RECLASSIFY CONTINGENCY04/03/2024 03:14:55 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: 04/03/2024 15:14 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: 04/03/2024 15:14 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115487RECLASSIFY CONTINGENCY04/03/2024 03:10:01 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: 04/03/2024 15:09 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: 04/03/2024 15:09 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115486RECLASSIFY CONTINGENCY04/03/2024 03:10:00 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: 04/03/2024 15:09 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: 04/03/2024 15:09 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
115485MARKET INTERVENTION04/03/2024 05:29:59 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 02/03/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 02/03/2024
Refer Market Notice 115433
The AEMO Intervention Event and all associated directions are cancelled from 1730 hrs 04/03/2024
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 02/03/2024
Refer Market Notice 115433
The AEMO Intervention Event and all associated directions are cancelled from 1730 hrs 04/03/2024
Manager NEM Real Time Operations
115482MARKET INTERVENTION04/03/2024 03:00:10 PM
Direction - SA region 04/03/2024
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 04/03/2024
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
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.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1505 hrs on 04/03/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 04/03/2024
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
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.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1505 hrs on 04/03/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
115479RESERVE NOTICE05/03/2024 08:19:36 AM
RESERVE NOTICE MT PASA PUBLICATION 5 March 2024
The MTPASA result published on 5 March 2024 identifies Low Reserve Conditions as annual unserved energy exceeds the Reliability Standard between:
-- March 2025 - March 2026 in New South Wales.
AEMO declares low reserve conditions in accordance with clause 4.8.4 of the National Electricity Rules for the following region(s) and periods:
-- August 2025 - March 2026
in New South Wales when forecast demand exceeds supply under some circumstances.
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any AEMO intervention.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 115137 published on 27 February 2024.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at https://www.aemo.com.au/Electricity/National
Forecasting
AEMO
-- March 2025 - March 2026 in New South Wales.
AEMO declares low reserve conditions in accordance with clause 4.8.4 of the National Electricity Rules for the following region(s) and periods:
-- August 2025 - March 2026
in New South Wales when forecast demand exceeds supply under some circumstances.
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any AEMO intervention.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 115137 published on 27 February 2024.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at https://www.aemo.com.au/Electricity/National
Forecasting
AEMO
115478MARKET INTERVENTION04/03/2024 02:24:06 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 115474
The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 05/03/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1500 hrs 04/03/2024, 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 115474
The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 05/03/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1500 hrs 04/03/2024, 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
115477RECLASSIFY CONTINGENCY04/03/2024 12:22:50 PM
Reclassification of a Non-Credible Contingency Event: Middle Ridge No.2 275/110 kV Transformer line and Middle Ridge No.3 275/110 kV Transformer 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: Middle Ridge No.2 275/110 kV Transformer and Middle Ridge No.3 275/110 kV Transformer
Duration: 04/03/2024 12:22 until further notice
Constraint set(s) invoked:
Q-MR_TX2_3_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
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: Middle Ridge No.2 275/110 kV Transformer and Middle Ridge No.3 275/110 kV Transformer
Duration: 04/03/2024 12:22 until further notice
Constraint set(s) invoked:
Q-MR_TX2_3_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
115476SETTLEMENTS RESIDUE04/03/2024 11:30:20 AM
[EventId:202403041130_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 04 March 2024 11:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 4 March 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 March 2024.
Refer to market notice: 115475
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 1130 hrs on 4 March 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1130 hrs on 4 March 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 4 March 2024.
Refer to market notice: 115475
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 1130 hrs on 4 March 2024.
This is an AEMO autogenerated Market Notice.