Market Notices

Change Number: CHG0090456

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Market Network

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

In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_559DA1A7 from 0825hrs until further notice.

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

N-Q-MNSP1

Refer to AEMO Network Outage Scheduler (NOS) for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - 89 Lismore - Coffs 330kV Line - NSW region - 08/07/2024

At 0511 hrs 08/07/2024 there was an unplanned outage of 89 Lismore - Coffs 330kV Line.

The following constraint set(s) invoked at 0525 hrs 08/07/2024
N-CHLS_89, N-DLETS_OS, N-X_MBTE_3

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

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117306 is no longer reasonably possible and accordingly its classification has reverted to non-credible.

Cancellation time: 2300 hrs 06/07/2024.

Constraint set revoked: I-VS_250

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely severe weather in the SA region.

AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.

AEMO has taken the following action to maintain power system security at 2120 hrs 06/07/2024.

Constraint set invoked: I-VS_250

Duration: 2120 hrs 06/07/2024 until further notice

Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation -Murraylink - SA region - 06/07/2024

A planned outage of Murraylink in the SA region was scheduled from 0700 hrs 28/06/2024 to 1700 hrs 09/07/2024.

The outage has been completed and Murraylink returned to service at 1035 hrs 06/07/2024

Constraint set(s) revoked: I-MURRAYLINK

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: 1400 hrs 06/07/2024
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 117297

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: 05/07/2024 21:30 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

Change Number: CHG0090731

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)

Change Title: MSATS and eMDM July Maintenance Release
Change Start Date & Time: 14/07/2024 10:00:00 AEST
Change End Date & Time: 14/07/2024 18:00:00 AEST
Outage Start Date & Time: 14/07/2024 10:00:00 AEST
Outage End Date & Time: 14/07/2024 18:00:00 AEST

Environment: Production

Participant Impact and Requirements: Users will not be able to access MSATS during the outage period.

NOTE: The Outage is from 10:00 to 18:00 AEST which is 4 hours longer than the agreed maintenace window of 10:00 to 14:00 AEST.

Meter data processing and RM reports will not be available during the outage period.

User Rights Management (URM) will continue to operate, however the administration screens will not be accessible.

MSATS B2B/B2M Transactions and B2B MSATS Screens will be unavailable during this outage

NMI Discovery will not be available during the outage period.

CDR and CDP will not be available during the outage period.

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 .