Market Notices

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Wednesday, 28 May 2025

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MPP_1
Duration: 28/05/2025 17:55 to 28/05/2025 18:00
Amount: -20 MW
Constraint: NC-Q_MPP_1

Auto-generated on behalf of Manager NEM Real Time 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

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Wednesday, 28 May 2025

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MPP_2
Duration: 28/05/2025 12:30 to 28/05/2025 15:15
Amount: 26 MW
Constraint: NC-Q_MPP_2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Wednesday, 28 May 2025

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MPP_2
Duration: 28/05/2025 01:35 to 28/05/2025 02:35
Amount: 24 MW
Constraint: NC-Q_MPP_2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the 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 is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: SA
Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines
Cancellation time: 1150 hrs 27/05/2025
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 127230

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

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: NSW1

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

Cancellation time: 27/05/2025 00:33

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 127295

Auto-generated on behalf of Manager NEM Real Time Operations