Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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: SA
Lines: Para-Templers West and Magill-Torrens Island A 275kV lines
Duration: 1810 hrs 23/06/2025 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Duration: 1810 hrs 23/06/2025 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

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

From 0000 hrs to 0300 hrs 01/07/2025.
The forecast capacity reserve requirement is 230 MW.
The minimum capacity reserve available is 205 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

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

1. From 0730 hrs to 1000 hrs 30/06/2025.
The forecast capacity reserve requirement is 230 MW.
The minimum capacity reserve available is 136 MW.

2. From 1700 hrs to 2359 hrs 30/06/2025.
The forecast capacity reserve requirement is 230 MW.
The minimum capacity reserve available is 109 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

Change Number: CHG0103783

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MarketNet
Change Title: Planned maintenance affecting the AEMO Market Network.
Change Start Date & Time: 23/06/2025 07:00:15
Change End Date & Time: 23/06/2025 18:00:00
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: Planned maintenance will be conducted on the 23rd of June 2025, between 07:00AM and 05:00PM AEST on the core network infrastructure within the AEMO Market Network in Sydney.

During the change, there will be two instances of 1-3 second service disruption to MarketNet Services accessed via Sydney as traffic moves from the active to the standby load balancing unit. All Services should return to normal after this time. Traffic via Brisbane will not be affected during this time. AEMO recommends that all market participants with site to site VPN connections currently connected via Sydney, to switch these connections to the Brisbane site as a precaution.

Participants connecting via IPWAN and/or SSL VPN will be automatically connected to the Brisbane site and do not need to take any action.

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: CHG0103386

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

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

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: QLD1

Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 22/06/2025 07:14

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 127693

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: QLD1

Lines: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV

Cancellation time: 22/06/2025 07:14

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 127692

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: QLD1

Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV

Duration: 22/06/2025 06:09 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations