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85333RECLASSIFY CONTINGENCY11/05/2021 02:53:48 PM
Reclassification of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV 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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Duration: 11/05/2021 14:53 until further notice
Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
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: QLD1
Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Duration: 11/05/2021 14:53 until further notice
Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
85332POWER SYSTEM EVENTS11/05/2021 12:28:50 PM
Update - Non-credible contingency event - NSW region - 11/05/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 11/05/2021
Refer AEMO ELECTRICITY MARKET NOTICE MN85323
At 1212 hrs the Port Macquarie - Taree No. 964 132 kV Line was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 11/05/2021
Refer AEMO ELECTRICITY MARKET NOTICE MN85323
At 1212 hrs the Port Macquarie - Taree No. 964 132 kV Line was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
85331MARKET INTERVENTION11/05/2021 02:05:35 PM
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 10/05/2021
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 10/05/2021
Refer Market Notice 85311
The AEMO Intervention Event and all associated directions are cancelled from 1330 hrs 11/05/2021
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 10/05/2021
Refer Market Notice 85311
The AEMO Intervention Event and all associated directions are cancelled from 1330 hrs 11/05/2021
Manager NEM Real Time Operations
85329RESERVE NOTICE11/05/2021 12:56:33 PM
RESERVE NOTICE MT PASA PUBLICATION 11 May 2021
The MTPASA result published on 11 May 2021 identifies no Low Reserve Conditions.
This MTPASA run includes updates consistent with the May generation information page. Additionally, South Australian operational demand profiles have been updated to reflect new industrial consumer survey information on periods of planned industrial load reduction between May and November in 2021.
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 market intervention or direction from AEMO.
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 85085 published on 4th May 2021.
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-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO
This MTPASA run includes updates consistent with the May generation information page. Additionally, South Australian operational demand profiles have been updated to reflect new industrial consumer survey information on periods of planned industrial load reduction between May and November in 2021.
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 market intervention or direction from AEMO.
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 85085 published on 4th May 2021.
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-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO
85328MARKET SYSTEMS11/05/2021 11:14:44 AM
CHG0064354 : Implementation of r40 schema to FBS responder as part of Gas Life Support project
Change Number: CHG0064354
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Hub
Change Title: Implementation of r40 schema to FBS responder as part of Gas Life Support project
Change Start Date & Time: 13/05/2021 10:00:00 AEST
Change End Date & Time: 14/05/2021 16:00:00 AEST
Outage Start Date & Time: 13/05/2021 13:00:00 AEST
Outage End Date & Time: 13/05/2021 17:00:00 AEST
Change Description:
AEMO is introducing the additional capability to perform gas certification with the r40 schema as part of gas life support program whilst retaining support for the existing schemas .
Environment: Pre-Production
Participant Impact and Requirements:
The following impacts are expected during this maintenance:
- Access to the Gas Certification Responder will be unavailable during the Change window
- Users are not required to take any action due to this change
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: Initial
Change Type: Normal
Service/ Component: Gas Hub
Change Title: Implementation of r40 schema to FBS responder as part of Gas Life Support project
Change Start Date & Time: 13/05/2021 10:00:00 AEST
Change End Date & Time: 14/05/2021 16:00:00 AEST
Outage Start Date & Time: 13/05/2021 13:00:00 AEST
Outage End Date & Time: 13/05/2021 17:00:00 AEST
Change Description:
AEMO is introducing the additional capability to perform gas certification with the r40 schema as part of gas life support program whilst retaining support for the existing schemas .
Environment: Pre-Production
Participant Impact and Requirements:
The following impacts are expected during this maintenance:
- Access to the Gas Certification Responder will be unavailable during the Change window
- Users are not required to take any action due to this change
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
85327RECLASSIFY CONTINGENCY11/05/2021 07:14:15 AM
Cancellation of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV 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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 11/05/2021 07:14
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 85326
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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 11/05/2021 07:14
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 85326
Auto-generated on behalf of Manager NEM Real Time Operations
85326RECLASSIFY CONTINGENCY11/05/2021 06:11:40 AM
Reclassification of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV 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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Duration: 11/05/2021 06:11 until further notice
Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
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: QLD1
Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Duration: 11/05/2021 06:11 until further notice
Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
85325RECLASSIFY CONTINGENCY11/05/2021 05:34:15 AM
Cancellation of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV 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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 11/05/2021 05:34
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 85318
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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 11/05/2021 05:34
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 85318
Auto-generated on behalf of Manager NEM Real Time Operations
85324INTER-REGIONAL TRANSFER11/05/2021 05:20:50 AM
Inter-regional transfer limit variation - 964 Line - NSW region - 11/05/2021
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - 964 Line - NSW region - 11/05/2021
At 0507 hrs 11/05/2021 there was an unplanned outage of Port Macquarie - Taree No. 964 132 kV Line
The following constraint set was invoked from 0515 hrs 11/05/2021.
N-TAPM_964
The constraint set contains equations with the following interconnectors on the LHS
N-Q-MNSP1
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - 964 Line - NSW region - 11/05/2021
At 0507 hrs 11/05/2021 there was an unplanned outage of Port Macquarie - Taree No. 964 132 kV Line
The following constraint set was invoked from 0515 hrs 11/05/2021.
N-TAPM_964
The constraint set contains equations with the following interconnectors on the LHS
N-Q-MNSP1
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations