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91941RESERVE NOTICE26/10/2021 09:38:27 AM
RESERVE NOTICE MT PASA PUBLICATION 26 October 2021
The MTPASA result published on 26 October 2021 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 91800 published on 19 October 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
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 91800 published on 19 October 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
91940RECLASSIFY CONTINGENCY25/10/2021 01:55:35 PM
Reclassification of a Non-Credible Contingency Event: Tarong - Chinchilla No.7168 132 kV line and Tarong - Chinchilla No.7183 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: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Duration: 25/10/2021 13:55 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: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Duration: 25/10/2021 13:55 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91939RECLASSIFY CONTINGENCY25/10/2021 01:55:30 PM
Reclassification of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV 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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Duration: 25/10/2021 13:55 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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Duration: 25/10/2021 13:55 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91938RESERVE NOTICE25/10/2021 01:50:42 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region beginning on 27/10/2021.
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 91937 is cancelled at 1300 hrs 25/10/2021.
No LOR2 condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 91937 is cancelled at 1300 hrs 25/10/2021.
No LOR2 condition is currently forecast in the STPASA period.
AEMO Operations
91937RESERVE NOTICE25/10/2021 10:44:28 AM
STPASA - Update Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region beginning on 27/10/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 conditions in the SA region advised in AEMO Electricity Market Notice No. 91936 has been updated at 1000 hrs 25/10/2021 to the following:
From 0600 hrs 28/10/2021 to 0700 hrs 28/10/2021.
The forecast capacity reserve requirement is 451 MW.
The minimum capacity reserve available is 449 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
The Forecast LOR2 condition on 27/10/2021 advised in AEMO Electricity Market Notice No. 91936 is cancelled at 1000 hrs 25/10/202.
AEMO Operations
The Forecast LOR2 conditions in the SA region advised in AEMO Electricity Market Notice No. 91936 has been updated at 1000 hrs 25/10/2021 to the following:
From 0600 hrs 28/10/2021 to 0700 hrs 28/10/2021.
The forecast capacity reserve requirement is 451 MW.
The minimum capacity reserve available is 449 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
The Forecast LOR2 condition on 27/10/2021 advised in AEMO Electricity Market Notice No. 91936 is cancelled at 1000 hrs 25/10/202.
AEMO Operations
91936RESERVE NOTICE25/10/2021 10:00:03 AM
STPASA - Update Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region beginning on 27/10/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 conditions in the SA region advised in AEMO Electricity Market Notice No. 91935 has been updated at 0900 hrs 25/10/2021 to the following:
[1.] From 1800 hrs 27/10/2021 to 1900 hrs 27/10/2021.
The forecast capacity reserve requirement is 417 MW.
The minimum capacity reserve available is 239 MW.
[2.] From 0430 hrs 28/10/2021 to 0730 hrs 28/10/2021.
The forecast capacity reserve requirement is 425 MW.
The minimum capacity reserve available is 235 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
The Forecast LOR2 conditions in the SA region advised in AEMO Electricity Market Notice No. 91935 has been updated at 0900 hrs 25/10/2021 to the following:
[1.] From 1800 hrs 27/10/2021 to 1900 hrs 27/10/2021.
The forecast capacity reserve requirement is 417 MW.
The minimum capacity reserve available is 239 MW.
[2.] From 0430 hrs 28/10/2021 to 0730 hrs 28/10/2021.
The forecast capacity reserve requirement is 425 MW.
The minimum capacity reserve available is 235 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
91935RESERVE NOTICE25/10/2021 08:07:31 AM
STPASA - Update Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region beginning on 27/10/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 conditions in the SA region advised in AEMO Electricity Market Notice No. 91934 has been updated at 0700 hrs 25/10/2021 to the following:
[1.] From 1800 hrs 27/10/2021 to 1900 hrs 27/10/2021.
The forecast capacity reserve requirement is 459 MW.
The minimum capacity reserve available is 246 MW.
[2.] From 0530 hrs 28/10/2021 to 0700 hrs 28/10/2021.
The forecast capacity reserve requirement is 373 MW.
The minimum capacity reserve available is 233 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
The Forecast LOR2 conditions in the SA region advised in AEMO Electricity Market Notice No. 91934 has been updated at 0700 hrs 25/10/2021 to the following:
[1.] From 1800 hrs 27/10/2021 to 1900 hrs 27/10/2021.
The forecast capacity reserve requirement is 459 MW.
The minimum capacity reserve available is 246 MW.
[2.] From 0530 hrs 28/10/2021 to 0700 hrs 28/10/2021.
The forecast capacity reserve requirement is 373 MW.
The minimum capacity reserve available is 233 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
91934RESERVE NOTICE25/10/2021 07:15:28 AM
STPASA - Update Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region beginning on 27/10/2021
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO Market Notice 91932
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
[1.] From 1730 hrs 27/10/2021 to 1900 hrs 27/10/2021.
The forecast capacity reserve requirement is 485 MW.
The minimum capacity reserve available is 262 MW.
[2.] From 0530 hrs 28/10/2021 to 0600 hrs 28/10/2021.
The forecast capacity reserve requirement is 373 MW.
The minimum capacity reserve available is 284 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
Refer AEMO Market Notice 91932
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
[1.] From 1730 hrs 27/10/2021 to 1900 hrs 27/10/2021.
The forecast capacity reserve requirement is 485 MW.
The minimum capacity reserve available is 262 MW.
[2.] From 0530 hrs 28/10/2021 to 0600 hrs 28/10/2021.
The forecast capacity reserve requirement is 373 MW.
The minimum capacity reserve available is 284 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
91933INTER-REGIONAL TRANSFER24/10/2021 10:11:09 PM
Inter-regional transfer limit variation - Sydenham 500kV centre CB Moorabool 2 line South Morang 2 line- Vic region - 20/10/2020
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Sydenham 500kV centre CB Moorabool 2 line South Morang 2 line- Vic region - 20/10/2020
At 2156 hrs there was a short notice outage at Sydenham on 500kV centre CB Moorabool 2 line /South Morang 2 line.
The following constraint set(s) was invoked from 2205 hrs until further notice
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Sydenham 500kV centre CB Moorabool 2 line South Morang 2 line- Vic region - 20/10/2020
At 2156 hrs there was a short notice outage at Sydenham on 500kV centre CB Moorabool 2 line /South Morang 2 line.
The following constraint set(s) was invoked from 2205 hrs until further notice
V-SY_CB
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Manager NEM Real Time Operations