Market Notices

126493MARKET SYSTEMS11/04/2025 08:43:33 AM

Completed - CHG0102031 - Roll out of TLS 1.3 support for Gas B2B Hub and disable TLS versions 1.0/1.1

Change Number: CHG0102031

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Gas Hub
Change Title: Roll out of TLS 1.3 support for Gas B2B Hub and disable TLS versions 1.0/1.1

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
     
126492MARKET SYSTEMS11/04/2025 08:40:02 AM

Completed - CHG0102487 - Frequency Performance Payments (FPP) Maintenance Release

Change Number: CHG0102487

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Frequency Performance Payments Engine
Change Title: Frequency Performance Payments (FPP) Maintenance Release

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
     
126491MARKET SYSTEMS11/04/2025 08:37:23 AM

Cancelled - CHG0100211 - Identity Service Site Transfer

Change Number: CHG0100211

Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: Identity Service (IDS)
Change Title: Identity Service Site Transfer

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.
     
126490MARKET SYSTEMS11/04/2025 08:34:39 AM

Cancelled - CHG0100085 - EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities.

Change Number: CHG0100085

Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities .

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.
     
126471MARKET INTERVENTION10/04/2025 03:21:04 PM

Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/04/2025

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/04/2025

Refer Market Notice 126468

AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1520 hrs 10/04/2025.

Manager NEM Real Time Operations
     
126470MARKET SYSTEMS10/04/2025 03:00:45 PM

Initial - CHG0100085 - EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities.

Change Number: CHG0100085

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities .
Change Start Date & Time: 14/04/2025 08:00:00
Change End Date & Time: 16/04/2025 19:00:00
Outage Start Date & Time: 15/04/2025 20:15:00
Outage End Date & Time: 15/04/2025 21:00:00
Environment: Production

Participant Impact and Requirements: EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities.

During the window, delivery of FPP calculations through the participant data model may be delayed at various points.

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.
     
126469MARKET SYSTEMS10/04/2025 02:57:05 PM

Initial - CHG0102484 - Planned Maintenance to Brisbane Marketnet Router

Change Number: CHG0102484

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Local Area Network
Change Title: Planned Maintenance to Brisbane Marketnet Router
Change Start Date & Time: 10/04/2025 10:00:24
Change End Date & Time: 10/04/2025 16:00:24
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production

Participant Impact and Requirements: The following impacts are expected to participant connectivity during this planned maintenance:

IPWAN Participants - No impact is expected, however if IPWAN connectivity is lost, please use your backup method for connecting to Marketnet/submitting bids.

Lan-2-Lan VPN Participants (IPSEC) - Nil

B2B VPN - Nil

SSL VPN Participants: Nil

GASHUB: Nil

Other Impacts will have been communicated in advance.

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 .
     
126468MARKET INTERVENTION10/04/2025 01:01:05 PM

Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region

AEMO ELECTRICITY MARKET NOTICE

Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region

AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0900 hrs 11/04/2025.

The foreseeable circumstance requiring the need for intervention is Voltage.

Manager NEM Real Time Operations
     
126466GENERAL NOTICE10/04/2025 11:12:18 AM

Release of PEC-1 and combined V-SA limits - 11 April 2025

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 123956

AEMO, Transgrid and Electranet have reviewed the test results following the PEC Stage 1 testing on 31st January 2025. Hold points 4 and 5 can now be released.

The following limits will be released as of 1000hrs 11th April 2025:
- PEC-1 - 150 MW (both directions)
- Heywood + PEC1 - 750 MW from Vic to SA and 700 MW from SA to Vic
- The existing Heywood limits of 600 and 550 MW are not being changed.

With the release of these limits AEMO will be looking for testing opportunities for increases to Heywood as per the test plan: https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.

Ben Blake
AEMO Operations
     
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