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91957RECLASSIFY CONTINGENCY26/10/2021 09:29:30 AM
Cancellation of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV 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: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Cancellation time: 26/10/2021 09:29
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91955
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: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Cancellation time: 26/10/2021 09:29
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91955
Auto-generated on behalf of Manager NEM Real Time Operations
91956RESERVE NOTICE26/10/2021 09:43:01 AM
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 27/10/2021
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 periods:
[1.] From 1730 hrs 27/10/2021 to 1800 hrs 27/10/2021.
The forecast capacity reserve requirement is 363 MW.
The minimum capacity reserve available is 339 MW.
[2.] From 1830 hrs 27/10/2021 to 2000 hrs 27/10/2021.
The forecast capacity reserve requirement is 366 MW.
The minimum capacity reserve available is 305 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
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 1800 hrs 27/10/2021.
The forecast capacity reserve requirement is 363 MW.
The minimum capacity reserve available is 339 MW.
[2.] From 1830 hrs 27/10/2021 to 2000 hrs 27/10/2021.
The forecast capacity reserve requirement is 366 MW.
The minimum capacity reserve available is 305 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
91955RECLASSIFY CONTINGENCY26/10/2021 08:28:31 AM
Reclassification of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV 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: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Duration: 26/10/2021 08:28 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: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Duration: 26/10/2021 08:28 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91951RECLASSIFY CONTINGENCY25/10/2021 09:59:32 PM
Cancellation 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
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: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 25/10/2021 21:59
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91940
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: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 25/10/2021 21:59
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91940
Auto-generated on behalf of Manager NEM Real Time Operations
91950RECLASSIFY CONTINGENCY25/10/2021 06:49:30 PM
Cancellation 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
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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 25/10/2021 18:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91949
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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 25/10/2021 18:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91949
Auto-generated on behalf of Manager NEM Real Time Operations
91949RECLASSIFY CONTINGENCY25/10/2021 05:44:47 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 17:44 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 17:44 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
91948RECLASSIFY CONTINGENCY25/10/2021 04:59:45 PM
Cancellation 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
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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 25/10/2021 16:59
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91939
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: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 25/10/2021 16:59
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 91939
Auto-generated on behalf of Manager NEM Real Time Operations
91943RESERVE NOTICE25/10/2021 02:39:23 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region beginning on 28/10/2021.
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 91931 is cancelled at 1400 hrs 25/10/2021.
No LOR conditions currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 91931 is cancelled at 1400 hrs 25/10/2021.
No LOR conditions currently forecast in the STPASA period.
AEMO Operations
91942CONSTRAINTS25/10/2021 02:33:10 PM
Updated system strength limit advice for SA - any two synchronous condensers
AEMO MARKET NOTICE
Refer to market notices 84211 and 89336
Following new advice from ElectraNet AEMO has published a new version of the SA system strength limits advice. The new advice is that the combinations for two Davenport synchronous condensers can be updated to be for any two synchronous condensers at either Davenport or Robertstown.
For more information refer to the updated limits advice (which has been published today):
https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
For further details on this constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
Refer to market notices 84211 and 89336
Following new advice from ElectraNet AEMO has published a new version of the SA system strength limits advice. The new advice is that the combinations for two Davenport synchronous condensers can be updated to be for any two synchronous condensers at either Davenport or Robertstown.
For more information refer to the updated limits advice (which has been published today):
https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
For further details on this constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations