Market Notices

116984MARKET SYSTEMS13/06/2024 05:19:14 PM

CHG0089794 | Production | EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities .

Change Number: CHG0089794

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal

Service/ Component: Electricity Market Management System
Change Title: EMMS Production Systems will be transferred to the alternative datacentre for maintenance activities .

Change Start Date & Time: 17/06/2024 08:00:00 AEST
Change End Date & Time: 19/06/2024 17:30:00 AEST
Outage Start Date & Time: 18/06/2024 13:25:00 AEST
Outage End Date & Time: 18/06/2024 13:30:00 AEST

Environment: Production
Participant Impact and Requirements: The maintenance activity is not expected to have any impact however delays to Dispatch cycles, bid submission, and outage to the AEMO Markets Portal are possible during the outage window on Tuesday 18th June around 13:25 to 13:30 AEST.CDR 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 .
116983MARKET SYSTEMS13/06/2024 05:14:28 PM

CHG0090463 | Production | Planned Outage for the Gas Short Term Trading Market Systems Production.

Change Number: CHG0090463

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Short Term Trading Market
Change Title: Planned Outage for the Gas Short Term Trading Market Systems Production.

Change Start Date & Time: 19/06/2024 09:00:00 AEST
Change End Date & Time: 19/06/2024 22:00:00 AEST
Outage Start Date & Time: 19/06/2024 18:30:00 AEST
Outage End Date & Time: 19/06/2024 21:00:00 AEST

Environment: Production
Participant Impact and Requirements: Gas Short Term Trading Market (STTM) services including SWEX and MIS, SPI and SBS will not be available during the outage window in Production.

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 .

116982MARKET SYSTEMS13/06/2024 05:11:31 PM

CHG0090611 | Production | Changes to 7-day pre-dispatch (PD7DAY) reports to only publish 5 days.

Change Number: CHG0090611

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch

Change Title: Changes to 7-day pre-dispatch (PD7DAY) reports to only publish 5 days.
Change Start Date & Time: 17/06/2024 08:00:00 AEST
Change End Date & Time: 21/06/2024 17:30:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production

Participant Impact and Requirements: PD7DAY are reports published at least once a day and up to three times a day to assist with the administration of the gas industry's Gas Supply Guarantee and with short-term planning of gas supplies. AEMO has identified a performance issue with PD7DAY that has reduced the reliability of the delivery of the reports. As an interim measure, AEMO will reduce the outlook of PD7 DAY to 5 days which AEMO expects will reduce the frequency of missed reports.

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 .
116981MARKET SYSTEMS13/06/2024 05:06:33 PM

CHG0090585 | Production | Dispatch Applications Upgrade

Change Number: CHG0090585

Notification issued to: Market Notice
Notification Type: Initial

Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: Dispatch Applications Upgrade

Change Start Date & Time: 20/06/2024 09:00:00 AEST
Change End Date & Time: 21/06/2024 17:30:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production

Participant Impact and Requirements: Under this change, AEMO will upgrade the NEMDE solver used in Production for Dispatch, 5-Minute Predispatch, Predispatch and PD7 to a new version. AEMO will also upgrade other relevant applications for Dispatch ,5-Minute Predispatch ,Predispatch, PD7 as part of the Integrating Energy Storage Systems project (IESS).

No outage required.
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 .
116968MARKET SYSTEMS12/06/2024 09:22:54 AM

CHG0089854: Short Term Trading Market

Change Number: CHG0089854
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
116965RECLASSIFY CONTINGENCY11/06/2024 11:09:06 PM

Cancellation of a Non-Credible Contingency Event: Collinsville North - Proserpine No.7125 132 kV line and Collinsville North - Proserpine No.7126 132 kV line in QLD1 due to Lightning.

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: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Cancellation time: 11/06/2024 23:09

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 116964

Auto-generated on behalf of Manager NEM Real Time Operations
116964RECLASSIFY CONTINGENCY11/06/2024 10:07:40 PM

Reclassification of a Non-Credible Contingency Event: Collinsville North - Proserpine No.7125 132 kV line and Collinsville North - Proserpine No.7126 132 kV line in QLD1 due to Lightning.

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: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Duration: 11/06/2024 22:07 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
116963SETTLEMENTS RESIDUE11/06/2024 07:00:26 PM

[EventId:202406111900_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 11 June 2024 19:00

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1900 hrs on 11 June 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 11 June 2024.

Refer to market notice: 116955

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 1900 hrs on 11 June 2024.

This is an AEMO autogenerated Market Notice.
116955SETTLEMENTS RESIDUE11/06/2024 06:06:34 PM

[EventId:202406111805_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 11 June 2024 18:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1805 hrs on 11 June 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 11 June 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 1805 hrs on 11 June 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.
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