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CHG0103089 - ERI & STPASA Recall Period Production Release
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: ERI & STPASA Recall Period Production Release
Change Start Date & Time: 30/06/2025 09:00:00
Change End Date & Time: 04/07/2025 18:00:00
Outage Start Date & Time: 30/06/2025 11:45:00
Outage End Date & Time: 30/06/2025 11:55:00
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, Bidding, SOMMS and?Registration. This change will become effective upon rule commencement on 1 July, 2025
Impact : A Planned outage for BIDDING application is scheduled on 30th June 2025 between 11:45 AM and 11:55 AM. The application will be unavailable for approximately 5-7 min during this window.
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.
[EventId:202506242130_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 24 June 2025 21:30
Issued by Australian Energy Market Operator Ltd at 2130 hrs on 24 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 24 June 2025.
Refer to market notice: 127824
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 2130 hrs on 24 June 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202506242035_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 24 June 2025 20:35
Issued by Australian Energy Market Operator Ltd at 2035 hrs on 24 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 24 June 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 2035 hrs on 24 June 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202506242000_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 24 June 2025 20:00
Issued by Australian Energy Market Operator Ltd at 2000 hrs on 24 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 24 June 2025.
Refer to market notice: 127821
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 2000 hrs on 24 June 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202506242000_NRM_VIC1_NSW1_stopped] NEGRES CONSTRAINT NRM_VIC1_NSW1 ceased operating from 24 June 2025 20:00
Issued by Australian Energy Market Operator Ltd at 2000 hrs on 24 June 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 24 June 2025.
Refer to market notice: 127820
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 2000 hrs on 24 June 2025.
This is an AEMO autogenerated Market Notice.
[EventId:202506241910_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 24 June 2025 19:10
Issued by Australian Energy Market Operator Ltd at 1910 hrs on 24 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 24 June 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1910 hrs on 24 June 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
[EventId:202506241905_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 24 June 2025 19:05
Issued by Australian Energy Market Operator Ltd at 1905 hrs on 24 June 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 24 June 2025.
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 1905 hrs on 24 June 2025.
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.
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 01/07/2025
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 127741 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 1100 hrs to 1130 hrs 01/07/2025.
The forecast capacity reserve requirement is 404 MW.
The minimum capacity reserve available is 377 MW.
2. From 1600 hrs to 1630 hrs 01/07/2025.
The forecast capacity reserve requirement is 410 MW.
The minimum capacity reserve available is 301 MW.
AEMO Operations
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 30/06/2025
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 127739 has been updated at 1400 hrs 24/06/2025 to the following:
1. From 0600 hrs to 0700 hrs 30/06/2025.
The forecast capacity reserve requirement is 600 MW.
The minimum capacity reserve available is 473 MW.
2. From 1030 hrs to 1100 hrs 30/06/2025.
The forecast capacity reserve requirement is 376 MW.
The minimum capacity reserve available is 268 MW.
3. From 1630 hrs to 1700 hrs 30/06/2025.
The forecast capacity reserve requirement is 397 MW.
The minimum capacity reserve available is 200 MW.
AEMO Operations