Market Notices

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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 25/04/2025 04:47 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

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: TAS1

Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV

Cancellation time: 25/04/2025 02:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 126724

Auto-generated on behalf of Manager NEM Real Time Operations

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: TAS1

Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV

Duration: 25/04/2025 01:49 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 124749.

AEMO, Transgrid, Powerlink have reviewed the test results following the QNI minor testing on 16th February 2025. The next hold point can now be released.

The hold point of 950 MW from NSW to Qld will be implemented as of 1000 hrs 29th April 2025.

Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations

Change Number: CHG0102573

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: STTM - Scheduling & Dispatch - SPI

Change Title: There will be no access to the STTM Production services (SWEX/SWEXIE/MIS) for the duration of the outage. Please access outside these hours.

Change Start Date & Time: 01/05/2025 18:30:00

Change End Date & Time: 01/05/2025 20:30:00

Outage Start Date & Time: 01/05/2025 18:30:00

Outage End Date & Time: 01/05/2025 20:30:00

Environment: Production

Participant Impact and Requirements: There will be no access to the STTM Production services (SWEX/SWEXIE/MIS) for the duration of the outage. Please access outside these hours.

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.

Change Number: CHG0102537

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Windows Server

Change Title: NOR Pre-Prod GFRC will have scheduled maintenance works outage from 9.00am Wednesday 9 April until 12pm (EST)

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0102344

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Declared Wholesale Gas Market (DWGM)

Change Title: Maintenance activities to be performed on the Declared Wholesale Gas Market Systems Pre-Production.

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0102325

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Short Term Trading Market (STTM)

Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0102489

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: MDM - Meter Data Management_PreProd

Change Title: Pre-Prod eMDM Maintenance Release

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.