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116280MARKET INTERVENTION23/04/2024 05:48:19 PM
Update - Direction - SA Region - 22/04/2024
AEMO ELECTRICITY MARKET NOTICE
Update - Direction - SA Region - 22/04/2024
Refer Market Notice 116263
The AEMO intervention event that commenced from interval ending 1205 hrs on 22/04/2024 is continuing.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
Manager NEM Real Time Operations
Update - Direction - SA Region - 22/04/2024
Refer Market Notice 116263
The AEMO intervention event that commenced from interval ending 1205 hrs on 22/04/2024 is continuing.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
Manager NEM Real Time Operations
116277MARKET INTERVENTION23/04/2024 01:06:47 PM
Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 0400 hrs 24/04/2024 will be inadequate to maintain a secure operating state in SA .
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA .
Manager NEM Real Time Operations
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 0400 hrs 24/04/2024 will be inadequate to maintain a secure operating state in SA .
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA .
Manager NEM Real Time Operations
116276POWER SYSTEM EVENTS23/04/2024 12:09:41 PM
Non-credible contingency event - VIC region - 23/04/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 23/04/2024
At 1056 hrs the MOPS 11 Gen TX 2 Bus 500kV CB and the Dundonnell WF tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
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
Non-credible contingency event - VIC region - 23/04/2024
At 1056 hrs the MOPS 11 Gen TX 2 Bus 500kV CB and the Dundonnell WF tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
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
116275INTER-REGIONAL TRANSFER23/04/2024 08:52:22 AM
Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024
At 0837 hrs 23/04/2024 there was an unplanned outage of Para No 1 SVC.
Constraint set(s) invoked: S-PA_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024
At 0837 hrs 23/04/2024 there was an unplanned outage of Para No 1 SVC.
Constraint set(s) invoked: S-PA_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116273MARKET SYSTEMS22/04/2024 02:59:52 PM
CHG0088831 | Completed | Production | Identity Service Config Update in Production.
Change Number: CHG0088831
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Identity Service (IDS)
Change Title: Identity Service Config Update in Production.
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: Completed
Change Type: Normal
Service/Component: Identity Service (IDS)
Change Title: Identity Service Config Update in Production.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
116272INTER-REGIONAL TRANSFER22/04/2024 02:55:17 PM
Inter-regional transfer limit variation -Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024
A planned outage of Liddell - Tomago 82 330kV Line in the NSW region was scheduled from 0600 hrs 03/04/2024 to 1700 hrs 22/04/2024.
The outage has been completed and Liddell - Tomago 82 330kV Line returned to service at 1450 hrs 22/04/2024
Constraint set(s) revoked: N-LDTM_82_OPEN
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024
A planned outage of Liddell - Tomago 82 330kV Line in the NSW region was scheduled from 0600 hrs 03/04/2024 to 1700 hrs 22/04/2024.
The outage has been completed and Liddell - Tomago 82 330kV Line returned to service at 1450 hrs 22/04/2024
Constraint set(s) revoked: N-LDTM_82_OPEN
Manager NEM Real Time Operations
116271RECLASSIFY CONTINGENCY22/04/2024 01:44:46 PM
Cancellation of the reclassification of a Non-Credible contingency event: Farrell - Sheffield Nos 1 and 2 220kV Lines line in TAS due to Bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event due to Bushfire. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any non credible event activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS
Lines: Farrell - Sheffield Nos 1 and 2 220kV Lines
Cancellation time: 13:40 hrs 22/04/2024
Constraint set(s) revoked:
T-FASH_N-2_CP4_SB
T-NIL_WCP_CLOSE
Refer AEMO Electricity Market Notice 116269
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event due to Bushfire. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any non credible event activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS
Lines: Farrell - Sheffield Nos 1 and 2 220kV Lines
Cancellation time: 13:40 hrs 22/04/2024
Constraint set(s) revoked:
T-FASH_N-2_CP4_SB
T-NIL_WCP_CLOSE
Refer AEMO Electricity Market Notice 116269
Manager NEM Real Time Operations
116270INTER-REGIONAL TRANSFER22/04/2024 01:32:54 PM
Inter-regional transfer limit variation - Farrell - Sheffield Nos 1 and 2 220kV Lines - TAS region - 22/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Farrell - Sheffield Nos 1 and 2 220kV Lines - TAS region - 22/04/2024
At 1315 hrs 22/04/2024 there was an unplanned outage of Farrell - Sheffield Nos 1 and 2 220kV Lines.
The following constraint set(s) invoked at 1315 hrs 22/04/2024
T-X_FASH_C
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Farrell - Sheffield Nos 1 and 2 220kV Lines - TAS region - 22/04/2024
At 1315 hrs 22/04/2024 there was an unplanned outage of Farrell - Sheffield Nos 1 and 2 220kV Lines.
The following constraint set(s) invoked at 1315 hrs 22/04/2024
T-X_FASH_C
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116269RECLASSIFY CONTINGENCY22/04/2024 01:05:20 PM
Reclassification of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and 2 220kV Lines in TAS due to Bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire. 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: TAS
Lines: Farrell - Sheffield No. 1 and 2 220kV Lines
Duration:12:50 hrs 22/04/2024 until further notice
Constraint set(s) invoked:
T-NIL_WCP_CLOSE
F-FASH_N-2_CP4_SB
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire. 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: TAS
Lines: Farrell - Sheffield No. 1 and 2 220kV Lines
Duration:12:50 hrs 22/04/2024 until further notice
Constraint set(s) invoked:
T-NIL_WCP_CLOSE
F-FASH_N-2_CP4_SB
Manager NEM Real Time Operations