Market Notices

AEMO ELECTRICITY MARKET NOTICE

SERVICE INTERRUPTION - RESOLVED

The service interruption relating to the Market Portal has been resolved.

For further enquiries please contact the AEMO Support Hub
Phone: 1300 236 600
Email: supporthub@aemo.com.au

AEMO ELECTRICITY MARKET NOTICE

Following a review of the operation of the Very Fast FCAS market, AEMO will commence local dispatch of Very Fast FCAS in the South Australia (SA) and Queensland (QLD) regions from 10th June 2025, during periods where islanding of the region is considered credible.

An initial dispatch cap of 100 MW will apply in the SA region, and 20 MW in the QLD region. These caps will be reviewed and updated regularly.

From the same date, AEMO will also dispatch Very Fast FCAS in the QLD region when an actual islanding event occurs. In this scenario, no dispatch cap will apply.

Dispatch of Very Fast FCAS in the SA region under actual islanding conditions commenced in 2024. Refer to Market Notice 117238 for further details.

For more information on the Fast Frequency Response (FFR) initiative, please visit:
https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response

Andrew Groom
AEMO Operations

Change Number: CHG0103591

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: Pre-Prod MSATS 54.2 CICD Maintenance Release (MSATS App deployment only)

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale Dumaresq 8C and Dumaresq Bulli 8M 330kV lines - NSW region - 28/05/2025

At 1750 hrs 28/05/2025 there was a short notice outage of Armidale Dumaresq 8C and Dumaresq Bulli 8M 330kV lines.

The following constraint set(s) invoked at 1745 hrs 28/05/2025
N-ARDM_8C
N-X_8C+DM+TW_SVC

and the following constraint set(s) invoked at 1750 hrs 28/05/2025
I-BCDM_ONE
N-X_8L+DM+TW_SVC

These constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

Change Number: CHG0103591

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: Pre-Prod MSATS 54.2 CICD Maintenance Release (MSATS App deployment only)
Change Start Date & Time: 28/05/2025 13:00:00
Change End Date & Time: 28/05/2025 17:00:00
Outage Start Date & Time:
Outage End Date & Time:
Environment: Pre-Production
Participant Impact and Requirements: no outage, deployment will be made to msats 1a first then switch to msats 1b.

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

Inter-regional transfer limit variation - Brinkworth - Templers West 275 kV line - SA region - 27/05/2025

At 0337 hrs 27/05/2025 there was an unplanned outage of Brinkworth - Templers West 275 kV line.

The following constraint set(s) invoked at 0340 hrs 27/05/2025
S-BRTW

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

Change Number: CHG0103179

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Local Area Network
Change Title: Scheduled maintenance of Marketnet router in Brisbane

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Woolooga No. 4 275 kV SVC - QLD region - 26/05/2025

At 0808 hrs 26/05/2025 there was an unplanned outage of Woolooga No. 4 275 kV SVC.

The following constraint set(s) invoked at 0815 hrs 26/05/2025
Q-WO_VC

This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO's FRC Gas Hub web services need to have their server certificates updated every year with new certificates to replace the expiring one.

Participants connecting to these endpoints or receiving requests from AEMO's FRC Gas Hub platforms and have authorization mechanisms like certificate fingerprinting in place will notice a change in AEMO's server's certificate fingerprint and will need to update their systems accordingly.

The certificate relates to "FBS-Test-Hub.aemo.com.au" certificate and relates to the following domains.

FBS-Test-Hub.aemo.com.au
apis.preprod.aemo.com.au
preprodhub.aemo.com.au
preprod.frchub.net
apis.preprod.marketnet.net.au
preprodhub.marketnet.net.au

Participants WILL need to update the profile that communicates with the above domains.

The certificates can be downloaded from the link below:
https://www.digicert.com/secure/download-certificate/nmxd2gs1y3dwr52kxfvmgth8bswhs43

This will need to be done to avoid the inability to send messages to the relay.