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Reclassification of a Non Credible Contingency Event: Trip of Golden Plains No. 1 220 kV bus - Vic region - 20/08/2024
Reclassification of a Non Credible Contingency Event: Trip of Golden Plains No. 1 220 kV bus - Vic region - 20/08/2024
Based on advice from the TNSP, AEMO has reclassified the trip of Golden Plains No. 1 220 kV bus as a credible contingency event.
Constraint Set invoked: NIL
Duration: 20/08/2024 1750 hrs until further notice
Manager NEM Real Time Operations
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 117719
Direction is cancelled from: 1630 hrs 20/08/2024
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAND
Update Direction - AGL SA Generation Pty Limited - TORRB4 TORRENS ISLAN
Refer AEMO Electricity Participant Notice 117722
TORRB4 TORRENS ISLAND to synchronise at 0900 hrs 21/08/2024
This update is issued at 1600 hrs 20/08/2024 and is expected to stay in place until 1230 hrs 21/08/2024
Manager NEM Real Time Operations
Direction - TORRB3 TORRENS ISLAND
Direction - SA region 20/08/2024
Refer to Market Notice 117714
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN at 1600 hrs 20/08/2024
Type of resource: generating unit
Required actions: remain synchronised and follow dispatch targets at 2330 hrs 20/08/2024
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1430 hrs 21/08/2024 / further notice.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer to Market Notice 117729
Direction is cancelled from: 1630 hrs 20/08/2024
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAND
Update Direction - AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN
Refer AEMO Electricity Participant Notice 117718
TORRB3 TORRENS ISLAND end time update.
This update is issued at 1530 hrs 20/08/2024 and is expected to stay in place until 1630 hrs 20/08/2024
Manager NEM Real Time Operations
CHG0095840 | Production | AEMO will be undertaking maintenance activities on the DWGM system
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Cohesity
Change Title: AEMO will be undertaking maintenance activities on the DWGM system
Change Start Date & Time: 20/08/2024 18:30:35 AEST
Change End Date & Time: 21/08/2024 01:30:35 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements:
AEMO will be undertaking maintenance activities on the DWGM system. Whilst no outage is expected there is potential for transient performance degradation during the change.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?d=pp_services_status for any planned/unplanned maintenance activities .
Cancellation - Special Reclassification of Transmission Equipment during lightning: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers - Qld region
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event.
AEMO no longer considers the H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers to be vulnerable due to lightning. Accordingly, its classification has reverted to a non-credible contingency event.
Region: Qld
Transmission Equipment: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers.
Constraint(s): NIL
Cancellation time: 1500 hrs
Refer AEMO Electricity Market Notice 112974
Manager NEM Real Time Operations
CHG0091298 | Completed | Production | Change to MarketNet SSL VPN
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Market Network
Change Title: Change to MarketNet SSL VPN
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.