Market Notices

Change Number: CHG0101911

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

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

Change Number: CHG0103171

Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Gas Hub
Change Title: Renewal and update of AEMO's FBS-Test-Hub.aemo.com.au server certificate.

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

Change Number: CHG0103463

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: 19/06/2025 08:00:00
Change End Date & Time: 19/06/2025 22:00:00
Outage Start Date & Time: 19/06/2025 18:00:00
Outage End Date & Time: 19/06/2025 19:00:00
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.

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:

1. From 1100 hrs to 1130 hrs 17/06/2025.
The forecast capacity reserve requirement is 220 MW.
The minimum capacity reserve available is 178 MW.

2. From 1400 hrs to 1430 hrs 17/06/2025.
The forecast capacity reserve requirement is 270 MW.
The minimum capacity reserve available is 236 MW.

AEMO is seeking a market response.

AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation- Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 11/06/2025

Refer AEMO Electricity Market Notice 127501

In order to maintain the power system in a secure operating state in the NSW region, AEMO invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until 1810 hrs.

This constraint set contains equations with the following interconnector on the LHS;

N-Q-MNSP1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_575BC182 from 1755 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

N-Q-MNSP1


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Collector - Yass (3L) 330kV line - NSW region - 11/06/2025

A planned outage of Collector - Yass (3L) 330kV line in the NSW region was scheduled from 0700 hrs 10/06/2025 to 1500 hrs 16/06/2025.

The outage has been completed and Collector - Yass (3L) 330kV line returned to service at 1611 hrs 11/06/2025

Constraint set(s) revoked: N-CTYS_3L_WG_CLOSE

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Middle Ridge - Greenbank (8848) 275 kV LINE - QLD region - 10/06/2025

At 1000 hrs 10/06/2025 there was a short notice outage of Middle Ridge - Greenbank (8848) 275 kV LINE.

The following constraint set(s) invoked at 1030 hrs 10/06/2025
Q-MRGB_8848_8849

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 ELECTRICITY MARKET NOTICE

The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 127481 is cancelled at 01:15 hrs. 09/06/2025.

Manager NEM Real Time Operations