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116374MARKET SYSTEMS29/04/2024 03:35:35 PM
CHG0088931 | Completed | Production | Planned System Maintenance activity.
Change Number: CHG0088931
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: EMS NEM - Network Outage Scheduler (NOS)
Change Title: Planned System Maintenance activity.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: EMS NEM - Network Outage Scheduler (NOS)
Change Title: Planned System Maintenance activity.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
116370MARKET INTERVENTION29/04/2024 02:46:55 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 116368
The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 30/04/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 29/04/2024, 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 116368
The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 30/04/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 29/04/2024, 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
116369NON-CONFORMANCE29/04/2024 01:05:16 PM
NON-CONFORMANCE Region VIC1 Monday, 29 April 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Monday, 29 April 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: JLB01
Duration: 29/04/2024 13:00 to 29/04/2024 13:05
Amount: 35 MW
Constraint: NC-V_JLB01
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Monday, 29 April 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: JLB01
Duration: 29/04/2024 13:00 to 29/04/2024 13:05
Amount: 35 MW
Constraint: NC-V_JLB01
Auto-generated on behalf of Manager NEM Real Time Operations
116368MARKET INTERVENTION29/04/2024 12:48:10 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 0830 hrs 30/04/2024 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 0830 hrs 30/04/2024 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
116367MARKET SYSTEMS29/04/2024 10:36:02 AM
CHG0089027 | Cancelled | Pre-Production | Pre-Prod eMDM May Maintenance Release
Change Number: CHG0089027
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: MDM - Meter Data Management
Change Title: Pre-Prod eMDM May Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: MDM - Meter Data Management
Change Title: Pre-Prod eMDM May Maintenance Release
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
116366RECLASSIFY CONTINGENCY29/04/2024 06:29:49 AM
Cancellation of a Non-Credible Contingency Event: Tungatinah-Lake Echo-Waddamana 1 110kV line and Tungatinah-Waddamana 2 110kV line in TAS1 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: TAS1
Lines: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV
Cancellation time: 29/04/2024 06:29
Constraint set(s) revoked:
T-TUWA12_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 116365
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: TAS1
Lines: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV
Cancellation time: 29/04/2024 06:29
Constraint set(s) revoked:
T-TUWA12_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 116365
Auto-generated on behalf of Manager NEM Real Time Operations
116365RECLASSIFY CONTINGENCY29/04/2024 05:28:35 AM
Reclassification of a Non-Credible Contingency Event: Tungatinah-Lake Echo-Waddamana 1 110kV line and Tungatinah-Waddamana 2 110kV line in TAS1 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: TAS1
Lines: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV
Duration: 29/04/2024 05:28 until further notice
Constraint set(s) invoked:
T-TUWA12_110_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: TAS1
Lines: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV
Duration: 29/04/2024 05:28 until further notice
Constraint set(s) invoked:
T-TUWA12_110_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
116364MARKET INTERVENTION28/04/2024 05:00:44 PM
Cancellation - Possible intervention to manage power system security in SA region 28/04/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Possible intervention to manage power system security in SA region 28/04/2024
Refer Market Notice 116361
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1700 hrs 28/04/2024.
Manager NEM Real Time Operations
Cancellation - Possible intervention to manage power system security in SA region 28/04/2024
Refer Market Notice 116361
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1700 hrs 28/04/2024.
Manager NEM Real Time Operations
116363MARKET INTERVENTION28/04/2024 03:30:28 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 27/04/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 27/04/2024
Refer Market Notice 116353
The AEMO Intervention Event and all associated directions are cancelled from 1530 hrs 28/04/2024
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 27/04/2024
Refer Market Notice 116353
The AEMO Intervention Event and all associated directions are cancelled from 1530 hrs 28/04/2024
Manager NEM Real Time Operations