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CHG0095132 | Cancelled | Production | AEMO will be undertaking maintenance activities on the DWGM system
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: Cohesity
Change Title: AEMO will be undertaking maintenance activities on the DWGM system
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
CHG0091534 | Completed | Production | Planned Outage for the Gas Short Term Trading Market Systems Production.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Short Term Trading Market
Change Title: Planned Outage for the Gas Short Term Trading Market Systems Production.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Cancellation of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and line in TAS1 due to Lightning.
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: TAS1
Lines: Palmerston - Hadspen 3 & 4 110kV and
Cancellation time: 15/08/2024 19:14
Constraint set(s) revoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 117683
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and line in TAS1 due to Lightning.
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: TAS1
Lines: Palmerston - Hadspen 3 & 4 110kV and
Duration: 15/08/2024 17:11 until further notice
Constraint set(s) invoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
CHG0095221 | Production | A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Hub
Change Title: A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.
Change Start Date & Time: 25/08/2024 09:00:00 AEST
Change End Date & Time: 25/08/2024 17:00:00 AEST
Outage Start Date & Time: 25/08/2024 10:00:00 AEST
Outage End Date & Time: 25/08/2024 14:00:00 AEST
Environment: Production
Participant Impact and Requirements: The following impacts are expected during this maintenance:
- All access to the Electricity B2B Hub will be unavailable.
- All access to the Gas B2B Hub and all ebXML gateways (AEMOMIBB, AGNLGWY, LVI & VENCORP) will be unavailable. CATS and MDMT transactions for VIC/QLD will be delayed during the maintenance window.
- Users are not required to take any action due to this change, however will need to enact manual workarounds for the outage period.
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?id=pp_services_status for any
planned/unplanned maintenance activities .
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink .
The following constraint set was invoked at 1620 hrs 14/08/2024
N-MBTE_1
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - CollectorWF-Marulan 4 330kV LINE - NSW region - 14/08/2024
Inter-regional transfer limit variation - CollectorWF-Marulan 4 330kV LINE - NSW region - 14/08/2024
At 1006 hrs 14/08/2024 there was a short notice outage of CollectorWF-Marulan 4 330kV LINE.
The following constraint set(s) invoked at 1000 hrs 14/08/2024
N-CTMN_4_WG_CLOSE
This constraint set(s) contains equations with the following interconnectors on the LHS.
VIC1-NSW1,N-Q-MNSP1,NSW1-QLD1,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition - NEM region.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117660 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 0845hrs 14/08/2024.
No constraints were invoked during this event
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Collector - Marulan No 4 330kV Line - NSW region - 14/08/2024
Inter-regional transfer limit variation - Collector - Marulan No 4 330kV Line - NSW region - 14/08/2024
A planned outage of Collector - Marulan No 4 330kV Line in the NSW region was scheduled from 0800 hrs 14/08/2024 to 1700 hrs 02/09/2024.
The outage has been cancelled.
Constraint set(s) invoked: N-CTMN_4_WG_CLOSE
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations