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127146SETTLEMENTS RESIDUE20/05/2025 09:05:29 AM
[EventId:202505200905_NRM_SA1_VIC1_started] NEGRES CONSTRAINT NRM_SA1_VIC1 started operating from 20 May 2025 09:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0905 hrs on 20 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 20 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 0905 hrs on 20 May 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.
Issued by Australian Energy Market Operator Ltd at 0905 hrs on 20 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 20 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 0905 hrs on 20 May 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.
127144MARKET SYSTEMS19/05/2025 03:00:27 PM
Initial - CHG0103171 - Renewal and update of AEMO's FBS-Test-Hub.aemo.com.au server certificate.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Hub
Change Title: Renewal and update of AEMO's FBS-Test-Hub.aemo.com.au server certificate.
Change Start Date & Time: 11/06/2025 10:00:00
Change End Date & Time: 11/06/2025 17:00:00
Outage Start Date & Time:
Outage End Date & Time:
Environment: Pre-Production
Participant Impact and Requirements: AEMO's FRC Gas Hub web services need to have their server certificates updated every year with new certificates to replace the expiring one.
Participants connecting to these endpoints or receiving requests from AEMO's FRC Gas Hub platforms and have authorisation mechanisms like certificate fingerprinting in place will notice a change in AEMO's server's certificate fingerprint and will need to update their systems accordingly.
The certificate relates to "FBS-Test-Hub.aemo.com.au" certificate and relates to the following domains.
FBS-Test-Hub.aemo.com.au
apis.preprod.aemo.com.au
preprodhub.aemo.com.au
preprod.frchub.net
apis.preprod.marketnet.net.au
preprodhub.marketnet.net.au
Participants WILL need to update the profile that communicates with the above domains.
This will need to be done to avoid the inability to send messages to the relay.
The certificates can be downloaded from the link below:
https://www.digicert.com/secure/download-certificate/nmxd2gs1y3dwr52kxfvmgth8bswhs43
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.
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Hub
Change Title: Renewal and update of AEMO's FBS-Test-Hub.aemo.com.au server certificate.
Change Start Date & Time: 11/06/2025 10:00:00
Change End Date & Time: 11/06/2025 17:00:00
Outage Start Date & Time:
Outage End Date & Time:
Environment: Pre-Production
Participant Impact and Requirements: AEMO's FRC Gas Hub web services need to have their server certificates updated every year with new certificates to replace the expiring one.
Participants connecting to these endpoints or receiving requests from AEMO's FRC Gas Hub platforms and have authorisation mechanisms like certificate fingerprinting in place will notice a change in AEMO's server's certificate fingerprint and will need to update their systems accordingly.
The certificate relates to "FBS-Test-Hub.aemo.com.au" certificate and relates to the following domains.
FBS-Test-Hub.aemo.com.au
apis.preprod.aemo.com.au
preprodhub.aemo.com.au
preprod.frchub.net
apis.preprod.marketnet.net.au
preprodhub.marketnet.net.au
Participants WILL need to update the profile that communicates with the above domains.
This will need to be done to avoid the inability to send messages to the relay.
The certificates can be downloaded from the link below:
https://www.digicert.com/secure/download-certificate/nmxd2gs1y3dwr52kxfvmgth8bswhs43
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.
127139MARKET SYSTEMS19/05/2025 01:54:07 PM
Initial - CHG0103267 - Pre-Prod MSATS 54.2 CICD Maintenance Release
Change Number: CHG0103267
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)_PreProd
Change Title: Pre-Prod MSATS 54.2 CICD Maintenance Release
Change Start Date & Time: 20/05/2025 13:00:00
Change End Date & Time: 20/05/2025 17:00:00
Outage Start Date & Time: 20/05/2025 13:00:00
Outage End Date & Time: 20/05/2025 17:00:00
Environment: Pre-Production
Participant Impact and Requirements: Users will not be able to access MSATS during the outage period.
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.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)_PreProd
Change Title: Pre-Prod MSATS 54.2 CICD Maintenance Release
Change Start Date & Time: 20/05/2025 13:00:00
Change End Date & Time: 20/05/2025 17:00:00
Outage Start Date & Time: 20/05/2025 13:00:00
Outage End Date & Time: 20/05/2025 17:00:00
Environment: Pre-Production
Participant Impact and Requirements: Users will not be able to access MSATS during the outage period.
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.
127135SETTLEMENTS RESIDUE19/05/2025 12:00:29 PM
[EventId:202505191200_NRM_SA1_VIC1_stopped] NEGRES CONSTRAINT NRM_SA1_VIC1 ceased operating from 19 May 2025 12:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 19 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 19 May 2025.
Refer to market notice: 127134
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 1200 hrs on 19 May 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 19 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 19 May 2025.
Refer to market notice: 127134
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the SA to VIC directional interconnector.
The negative residue constraint NRM_SA1_VIC1 ceased operating at 1200 hrs on 19 May 2025.
This is an AEMO autogenerated Market Notice.
127134SETTLEMENTS RESIDUE19/05/2025 10:35:27 AM
[EventId:202505191035_NRM_SA1_VIC1_started] NEGRES CONSTRAINT NRM_SA1_VIC1 started operating from 19 May 2025 10:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 19 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 19 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 1035 hrs on 19 May 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.
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 19 May 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - SA to VIC - 19 May 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the SA to VIC directional interconnector.
The negative residue constraint set NRM_SA1_VIC1 commenced operating from 1035 hrs on 19 May 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.
127133MARKET SYSTEMS19/05/2025 12:19:47 PM
Completed - CHG0103085 - Planned Telecommunications Maintenance Affecting the AEMO QLD Data Centre Internet Access Point.
Change Number: CHG0103085
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Internet Access
Change Title: Planned Telecommunications Maintenance Affecting the AEMO QLD Data Centre Internet Access Point.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Internet Access
Change Title: Planned Telecommunications Maintenance Affecting the AEMO QLD Data Centre Internet Access Point.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
127132RECLASSIFY CONTINGENCY19/05/2025 02:34:02 AM
Cancellation of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 19/05/2025 02:33
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 127131
Auto-generated on behalf of Manager NEM Real Time Operations
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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 19/05/2025 02:33
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 127131
Auto-generated on behalf of Manager NEM Real Time Operations
127131RECLASSIFY CONTINGENCY19/05/2025 01:33:11 AM
Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 19/05/2025 01:33 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
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: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 19/05/2025 01:33 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
127130SETTLEMENTS RESIDUE18/05/2025 07:30:22 PM
[EventId:202505181930_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 18 May 2025 19:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1930 hrs on 18 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 18 May 2025.
Refer to market notice: 127127
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 1930 hrs on 18 May 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1930 hrs on 18 May 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 18 May 2025.
Refer to market notice: 127127
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 1930 hrs on 18 May 2025.
This is an AEMO autogenerated Market Notice.