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118398RECLASSIFY CONTINGENCY23/09/2024 12:53:03 PM
Cancellation - Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024
Refer to MN 118393
Based on advice from the asset owner, AEMO no longer considers the simultaneous trip of Eraring Power Station Units 2 and 4 as a credible contingency event.
Therefore AEMO cancels the reclassification as a credible contingency event from 1250 hrs 23/09/2024.
Constraint set N-ERARING_N-2 revoked from 1250 hrs 23/09/2024
Manager NEM Real Time Operations
Cancellation - Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024
Refer to MN 118393
Based on advice from the asset owner, AEMO no longer considers the simultaneous trip of Eraring Power Station Units 2 and 4 as a credible contingency event.
Therefore AEMO cancels the reclassification as a credible contingency event from 1250 hrs 23/09/2024.
Constraint set N-ERARING_N-2 revoked from 1250 hrs 23/09/2024
Manager NEM Real Time Operations
118397MARKET INTERVENTION23/09/2024 12:46:38 PM
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Participant Notice 118372
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 1530 hrs 23/09/2024.
The direction update is issued at 1240 hrs 23/09/2024.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Participant Notice 118372
The TORRB4 TORRENS ISLAN direction is now expected to stay in place until 1530 hrs 23/09/2024.
The direction update is issued at 1240 hrs 23/09/2024.
Manager NEM Real Time Operations
118396RESERVE NOTICE23/09/2024 12:24:36 PM
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 118395 has been updated at 1220 hrs to the following:
From 2000 hrs 23/09/2024 to 2030 hrs 23/09/2024.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 552 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 118395 has been updated at 1220 hrs to the following:
From 2000 hrs 23/09/2024 to 2030 hrs 23/09/2024.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 552 MW.
Manager NEM Real Time Operations
118395RESERVE NOTICE23/09/2024 10:19:53 AM
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 118392 has been updated at 1020 hrs to the following:
From 1830 hrs 23/09/2024 to 2200 hrs 23/09/2024.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 450 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 118392 has been updated at 1020 hrs to the following:
From 1830 hrs 23/09/2024 to 2200 hrs 23/09/2024.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 450 MW.
Manager NEM Real Time Operations
118394RESERVE NOTICE24/09/2024 11:30:12 AM
RESERVE NOTICE MT PASA PUBLICATION 24 September 2024
The MTPASA result published on 24 September 2024 identifies Low Reserve Conditions as annual unserved energy exceeds the Reliability Standard between:
-- September 2024 - September 2025 in South Australia.
AEMO declares low reserve conditions in accordance with clause 4.8.4 of the National Electricity Rules for the following region(s) and periods:
-- January 2025 - March 2025 in South Australia 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 118296 published on 17 September 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
-- September 2024 - September 2025 in South Australia.
AEMO declares low reserve conditions in accordance with clause 4.8.4 of the National Electricity Rules for the following region(s) and periods:
-- January 2025 - March 2025 in South Australia 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 118296 published on 17 September 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
118393RECLASSIFY CONTINGENCY23/09/2024 09:50:10 AM
Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024
Based on advice from the asset owner, AEMO has declared the simultaneous trip of Eraring Power Station Units 2 and 4 as a credible contingency event.
AEMO considers the simultaneous trip of those generators to now be more likely.
AEMO has reclassified this as a credible contingency event from 1000 hrs 23/09/2024.
To manage power system security constraint set N-ERARING_N-2 invoked from 1000 hrs 23/09/2024 until further notice.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Eraring Power Station in NSW Region 23/09/2024
Based on advice from the asset owner, AEMO has declared the simultaneous trip of Eraring Power Station Units 2 and 4 as a credible contingency event.
AEMO considers the simultaneous trip of those generators to now be more likely.
AEMO has reclassified this as a credible contingency event from 1000 hrs 23/09/2024.
To manage power system security constraint set N-ERARING_N-2 invoked from 1000 hrs 23/09/2024 until further notice.
Manager NEM Real Time Operations
118392RESERVE NOTICE23/09/2024 07:27:49 AM
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 118374 has been updated at 0720 hrs to the following:
From 1800 hrs 23/09/2024 to 2230 hrs 23/09/2024.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 523 MW.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 118374 has been updated at 0720 hrs to the following:
From 1800 hrs 23/09/2024 to 2230 hrs 23/09/2024.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 523 MW.
Manager NEM Real Time Operations
118391RESERVE NOTICE23/09/2024 07:12:59 AM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 118390 is cancelled at 07:15 hrs 23/09/2024.
Manager NEM Real Time Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 118390 is cancelled at 07:15 hrs 23/09/2024.
Manager NEM Real Time Operations
118390RESERVE NOTICE23/09/2024 06:13:09 AM
PDPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 23/09/2024
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 2000 hrs 23/09/2024 to 2030 hrs 23/09/2024.
The forecast capacity reserve requirement is 350 MW.
The minimum capacity reserve available is 308 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 2000 hrs 23/09/2024 to 2030 hrs 23/09/2024.
The forecast capacity reserve requirement is 350 MW.
The minimum capacity reserve available is 308 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations