Market Notices

117511MARKET SYSTEMS31/07/2024 09:13:12 AM

CHG0091533 | Completed | Production | Planned Outage for the Gas Short Term Trading Market Systems Production.

Change Number: CHG0091533

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Short Term Trading Market

Change Title: Planned Outage for 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.
117510RESERVE NOTICE30/07/2024 08:43:12 PM

Cancellation of Actual (LOR1) condition in the SA region - 30/07/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR1) condition in the SA region - 30/07/2024

The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No. 117509 is cancelled at 2040 hrs 30/07/2024.

Manager NEM Real Time Operations
117509RESERVE NOTICE30/07/2024 08:17:01 PM

Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 30/07/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the SA region - 30/07/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the SA region from 2000 hrs.
The Actual LOR1 condition is forecast to exist until 2030 hrs

The capacity reserve requirement is 450 MW
The minimum capacity reserve available is 404 MW

Manager NEM Real Time Operations
117508GENERAL NOTICE30/07/2024 02:45:25 PM

Increase to QNI limit to next hold point of 1400 MW Qld to NSW

AEMO ELECTRICITY MARKET NOTICE

Refer to market notices 117060.

AEMO, TransGrid, Powerlink have reviewed the test results following the QNI minor testing on 19th June 2024. The next hold point can now be released.

The hold point of 1400 MW from Qld to NSW will be implemented as of 1000 hrs 31st July 2024.

Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations
117507MARKET SYSTEMS30/07/2024 01:27:09 PM

CHG0091507 | Production | As part of the Platform Services Patching Program, webMethods Inactive Production Application Servers in Brisbane will have critical s

Change Number: CHG0091507

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: MSATS - Business to Business data exchange

Change Title: As part of the Platform Services Patching Program, webMethods Inactive Production Application Servers in Brisbane will have critical security patches applied.

Change Start Date & Time: 26/08/2024 08:00:00 AEST
Change End Date & Time: 28/08/2024 18:00:00 AEST

Outage Start Date & Time:
Outage End Date & Time:

Environment: Production

Participant Impact and Requirements: This is the Inactive Production environment, there is no impact for external participants.

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?d=pp_services_status for any planned/unplanned maintenance activities .
117506SETTLEMENTS RESIDUE30/07/2024 07:55:25 AM

[EventId:202407300755_NRM_VIC1_NSW1_stopped] NEGRES CONSTRAINT NRM_VIC1_NSW1 ceased operating from 30 July 2024 07:55

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0755 hrs on 30 July 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 30 July 2024.

Refer to market notice: 117505

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

The negative residue constraint NRM_VIC1_NSW1 ceased operating at 0755 hrs on 30 July 2024.

This is an AEMO autogenerated Market Notice.
117505SETTLEMENTS RESIDUE30/07/2024 07:30:23 AM

[EventId:202407300730_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 30 July 2024 07:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0730 hrs on 30 July 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 30 July 2024.

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

The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 0730 hrs on 30 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.
117504RECLASSIFY CONTINGENCY30/07/2024 07:22:04 AM

Update - Non-credible contingency event - QLD region - 30/07/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - QLD region - 30/07/2024

Refer AEMO Electricity Market Notice 117503

The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.

Region: QLD

Elements: Darling Downs Power Station
Duration: 0720 hrs until further notice
Constraint set(s) invoked: Q-DARLING_DOWNS_N-2

Manager NEM Real Time Operations
117503POWER SYSTEM EVENTS30/07/2024 07:07:11 AM

Non-credible contingency event - QLD region - 30/07/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 30/07/2024

At 0537 hrs the Darling Downs Power Station GT1, GT3 and and the steam turbine tripped from 484 MW.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
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