Filter by:
Filter by category
Filter by Date
From
To
75015RECLASSIFY CONTINGENCY25/03/2020 06:57:40 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: 25/03/2020 18:57 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: 25/03/2020 18:57 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
75014RESERVE NOTICE25/03/2020 04:34:56 PM
RESERVE NOTICE MT PASA PUBLICATION 24 March 2020
The MTPASA result published on 25 March 2020 identifies no Low Reserve Conditions.
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 75007 published published on 24 March 2020.
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
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 75007 published published on 24 March 2020.
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
75013RECLASSIFY CONTINGENCY25/03/2020 03:29:50 PM
Reclassification of a Non-Credible Contingency Event: Mt Piper - Wallar 5A3 330kV line and Mt Piper - Wallar 5A5 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: Mt Piper - Wallar 5A3 330kV and Mt Piper - Wallar 5A5 330kV
Duration: 25/03/2020 15:29 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: NSW1
Lines: Mt Piper - Wallar 5A3 330kV and Mt Piper - Wallar 5A5 330kV
Duration: 25/03/2020 15:29 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
75012MARKET SYSTEMS25/03/2020 02:47:04 PM
AEMO Help Desk Bulletin No. 2448 - CHG0058351 : PROD - 5MS - Release 1 - Reallocations
Change Number: CHG0058351
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Settlements, EMMS - Billing
Change Title: PROD - 5MS - Release 1 - Reallocations
Change Start Date & Time: 30/03/2020 08:00:00 AEST
Change End Date & Time: 02/04/2020 18:00:00 AEST
Outage Start Date & Time: 01/04/2020 13:00:00 AEST
Outage End Date & Time: 01/04/2020 14:00:00 AEST
Change Description:
The Reallocations functionality for 5MS will be deployed in the AEMO Production environment on Wednesday 1 April 2020.
Environment: Production
Participant Impact and Requirements:
The new functionality will allow for those Market Participants that are registered for reallocations to submit reallocations for the period after 1 July 2021 in five-minute intervals.
EMMS 5MS Technical Specification - Reallocations is the relevant Technical Specification for the deployment and is available on our website.
https://aemo.com.au/-/media/files/electricity/nem/it-systems-and-change/2019/emms-technical-specification-5ms-reallocations.pdf
Market Participants will also experience a new User Interface and new APIs to submit reallocations and new alert and notification features. Some other enhancements include: bulk edit, CSV download or upload capability, public holidays, and reversing or duplicating reallocations.
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: EMMS - Settlements, EMMS - Billing
Change Title: PROD - 5MS - Release 1 - Reallocations
Change Start Date & Time: 30/03/2020 08:00:00 AEST
Change End Date & Time: 02/04/2020 18:00:00 AEST
Outage Start Date & Time: 01/04/2020 13:00:00 AEST
Outage End Date & Time: 01/04/2020 14:00:00 AEST
Change Description:
The Reallocations functionality for 5MS will be deployed in the AEMO Production environment on Wednesday 1 April 2020.
Environment: Production
Participant Impact and Requirements:
The new functionality will allow for those Market Participants that are registered for reallocations to submit reallocations for the period after 1 July 2021 in five-minute intervals.
EMMS 5MS Technical Specification - Reallocations is the relevant Technical Specification for the deployment and is available on our website.
https://aemo.com.au/-/media/files/electricity/nem/it-systems-and-change/2019/emms-technical-specification-5ms-reallocations.pdf
Market Participants will also experience a new User Interface and new APIs to submit reallocations and new alert and notification features. Some other enhancements include: bulk edit, CSV download or upload capability, public holidays, and reversing or duplicating reallocations.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
75011RECLASSIFY CONTINGENCY25/03/2020 01:44:40 PM
Cancellation of a Non-Credible Contingency Event: Mt Piper - Wallar 5A3 330kV line and Mt Piper - Wallar 5A5 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: Mt Piper - Wallar 5A3 330kV and Mt Piper - Wallar 5A5 330kV
Cancellation time: 25/03/2020 13:44
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 75010
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: Mt Piper - Wallar 5A3 330kV and Mt Piper - Wallar 5A5 330kV
Cancellation time: 25/03/2020 13:44
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 75010
Auto-generated on behalf of Manager NEM Real Time Operations
75010RECLASSIFY CONTINGENCY25/03/2020 08:39:40 AM
Reclassification of a Non-Credible Contingency Event: Mt Piper - Wallar 5A3 330kV line and Mt Piper - Wallar 5A5 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: Mt Piper - Wallar 5A3 330kV and Mt Piper - Wallar 5A5 330kV
Duration: 25/03/2020 08:39 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: NSW1
Lines: Mt Piper - Wallar 5A3 330kV and Mt Piper - Wallar 5A5 330kV
Duration: 25/03/2020 08:39 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
75009INTER-REGIONAL TRANSFER24/03/2020 07:44:57 PM
Cancellation - Inter-regional transfer limit variation - Ararat - Crowlands 220 kV Line - Vic region - 24/03/2020
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Inter-regional transfer limit variation - Ararat - Crowlands 220 kV Line - Vic region - 24/03/2020
At 1921 hrs 24/03/2020 the Ararat - Crowlands 220 kV Line was returned to service
The following constraint set was revoked at 1930 hrs 24/03/2020
V-ARCW
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Cancellation - Inter-regional transfer limit variation - Ararat - Crowlands 220 kV Line - Vic region - 24/03/2020
At 1921 hrs 24/03/2020 the Ararat - Crowlands 220 kV Line was returned to service
The following constraint set was revoked at 1930 hrs 24/03/2020
V-ARCW
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
75008INTER-REGIONAL TRANSFER24/03/2020 03:46:42 PM
Inter-regional transfer limit variation - Ararat - Crowlands 220 kV Line - Vic region - 24/03/2020
AEMO ELECTRICITY MARKET NOTICE
At 1528 hrs 24/03/2020 there was an unplanned outage of Ararat - Crowlands 220 kV Line.
The following constraint set invoked at 1535 hrs 24/03/2020
V-ARCW
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
At 1528 hrs 24/03/2020 there was an unplanned outage of Ararat - Crowlands 220 kV Line.
The following constraint set invoked at 1535 hrs 24/03/2020
V-ARCW
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
75007RESERVE NOTICE24/03/2020 02:25:54 PM
RESERVE NOTICE MT PASA PUBLICATION 24 March 2020
The MTPASA result published on 24 March 2020 identifies no Low Reserve Conditions.
The published MTPASA results (run number 259) were simulated on Friday 20th March as AEMO identified an issue with a participant's MTPASA Offer when preparing today's scheduled MTPASA run. AEMO determined that it would be invalid to publish results which reflected incorrect inputs. An updated MTPASA run with corrected bidding inputs will be published later this week.
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 74966 published on 17 March 2020.
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
The published MTPASA results (run number 259) were simulated on Friday 20th March as AEMO identified an issue with a participant's MTPASA Offer when preparing today's scheduled MTPASA run. AEMO determined that it would be invalid to publish results which reflected incorrect inputs. An updated MTPASA run with corrected bidding inputs will be published later this week.
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 74966 published on 17 March 2020.
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