Market Notices

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Friday, 8 November 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: WTAHB1
Duration: 08/11/2024 12:30 to 08/11/2024 12:45
Amount: 16 MW
Constraint: NC-N_WTAHB1

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Friday, 8 November 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: BHB1
Duration: 08/11/2024 09:15 to 08/11/2024 10:10
Amount: 25 MW
Constraint: NC-N_BHB1

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Thursday, 7 November 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: WTAHB1
Duration: 07/11/2024 14:35 to 07/11/2024 15:05
Amount: -32 MW
Constraint: NC-N_WTAHB1

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AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Thursday, 7 November 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: WTAHB1
Duration: 07/11/2024 09:00 to 07/11/2024 10:45
Amount: -50 MW
Constraint: NC-N_WTAHB1

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Change Number: CHG0099569
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: Gas Hub
Change Title: Maintenance on Gas B2B Hub databases
Change Start Date & Time: 17/11/2024 10:00:00 AEST
Change End Date & Time: 17/11/2024 10:30:00 AEST

Outage Start Date & Time:
Outage End Date & Time:
Environment: Production

Participant Impact and Requirements: The following impacts are expected during this maintenance:
- Brief 5 to 10 seconds loss of connectivity to the Gas B2B Hub and all ebXML gateways (AEMOMIBB, AGNLGWY, LVI & VENCORP) during the outage window.
- Users are not required to take any action due to this 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?id=pp_services_status for any
planned/unplanned maintenance activities .

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE Region NSW1 Thursday, 31 October 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:.

Unit: MP1
Duration: 31/10/2024 13:25 to 31/10/2024 13:30
Amount: -52 MW
Constraint: NC-N_MP1

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Thursday, 31 October 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MPP_2
Duration: 31/10/2024 12:50 to 31/10/2024 13:05
Amount: 24 MW
Constraint: NC-Q_MPP_2

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AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 31/10/2024

Refer AEMO Electricity Market Notice 119689

At 0345 hrs the Wagga B 330 kV bus was returned to service.

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

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 31/10/2024

At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.

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 is not known at this stage.


Manager NEM Real Time Operations