Market Notices

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.

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 .

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1755 hrs on 3 July 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 July 2024.

Refer to market notice: 117283

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.

The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1755 hrs on 3 July 2024.

This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1730 hrs on 3 July 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 July 2024.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1730 hrs on 3 July 2024.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Reclassification of a Non-Credible Contingency Event: South East No.1 SVC and No.2 SVC - SA region - 13/10/2023.

Refer AEMO Electricity Market Notice 110252

Based on advice from the participant, AEMO considers the trip of the following circuit at South East is unlikely to re-occur. Accordingly, its classification has reverted to a non-credible contingency event.

Region: SA

Equipment: South East No.1 SVC and No.2 SVC

Cancellation time: 1515 hrs 03/07/2024

Constraint set(s) revoked: Nil


Manager NEM Real Time Operations

Change Number: CHG0090790

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Gas FRC - CATS

Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Production.

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