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CHG0095221 | Production | A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Hub
Change Title: A production site transfer of the Electricity and Gas B2B Hub will be carried out to facilitate maintenance activities.
Change Start Date & Time: 25/08/2024 09:00:00 AEST
Change End Date & Time: 25/08/2024 17:00:00 AEST
Outage Start Date & Time: 25/08/2024 10:00:00 AEST
Outage End Date & Time: 25/08/2024 14:00:00 AEST
Environment: Production
Participant Impact and Requirements: The following impacts are expected during this maintenance:
- All access to the Electricity B2B Hub will be unavailable.
- All access to the Gas B2B Hub and all ebXML gateways (AEMOMIBB, AGNLGWY, LVI & VENCORP) will be unavailable. CATS and MDMT transactions for VIC/QLD will be delayed during the maintenance window.
- Users are not required to take any action due to this change, however will need to enact manual workarounds for 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 .
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal condition - NEM region.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117660 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 0845hrs 14/08/2024.
No constraints were invoked during this event
Manager NEM Real Time Operations
Planned outage of Nebo to Broadsound no. 8846 275 kV line in the QLD region beginning on 16/08/2024
The Nebo to Broadsound no. 8846 275 kV line in the Queensland (QLD) region is planned to be out of service from 0600 hrs 16/08/2024 to 1700 hrs 18/08/2024.
This outage is considered a High Impact Outage (HIO) as the outage recall is greater than 30 minutes.
A credible contingency event during this planned outage may require market intervention, such as the issuing of directions.
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
CHG0091459 | Production | MSATS CATS & URM Site Transfer BNE to NOR Data Centre
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: MSATS CATS & URM Site Transfer BNE to NOR Data Centre
Change Start Date & Time: 25/08/2024 10:00:00 AEST
Change End Date & Time: 25/08/2024 17:00:00 AEST
Outage Start Date & Time: 25/08/2024 11:15:00 AEST
Outage End Date & Time: 25/08/2024 11:45:00 AEST
Environment: Production
Participant Impact and Requirements: The change has some login outages that are below and will impact participants logging into the web portal for MSATS, OPDMS, NOS and EMMS production environments.
AEMO recommends users who need to use these AEMO services, login prior to the start of the outage and remain logged in.
NOTE: If you log out of this session, you will be unable to log back in until the completion of the outage.
A URM outage will occur between 11:15:00 - 11:45:00 AEST and have an expected outage duration of upto 20 minutes. During this time users will not be able to have new login sessions into TMM, OPDMS, NOS or EMMS WebPortal. Users who are already logged in will not be impacted.
The MSATS outage is 10:00:00 - 14:00:00 AEST.
Participants should be aware that:
o MSATS, Meter data processing, RM reports, B2B, B2M screen, NMI Discovery, CDR, CDP will not be available
o Production participant passwords will be retained.
o Users that log out and users that try to log in once the URM outage has commenced will only be able to log in after URM outage is complete. Users that are already logged in before the outage will not be impacted.
o Any password resets or new account creations completed during the URM outage window will need to be redone.
o MSATS and NOS Server FTP sessions will be disabled during outage - Wholesale MMS FTP will still be available.
o Plain English constraints will not be available during the URM outage timeframe via the EMMS web portal.
[EventId:202408131120_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 13 August 2024 11:20
Issued by Australian Energy Market Operator Ltd at 1120 hrs on 13 August 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 13 August 2024.
Refer to market notice: 117661
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 1120 hrs on 13 August 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202408131035_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 13 August 2024 10:35
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 13 August 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 13 August 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 1035 hrs on 13 August 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.
Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - NEM regions
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 Space Weather Watch in the NEM regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
Duration: 2230 hrs 12/08/2024 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
Cancellation of the reclassification of a Non-Credible contingency event: Buronga - Balranald X3 220 kV line, Buronga - Red Cliffs 0X1 220 kV kV line and Buronga - Broken Hill X2 220 kV line in NSW
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event. AEMO considers the simultaneous trip of the following elements is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Region: NSW
Elements: Liddell - Buronga - Balranald X3 220 kV line, Buronga - Red Cliffs 0X1 220 kV kV line and Buronga - Broken Hill X2 220 kV line.
Cancellation time: 1915 hrs
Refer AEMO Electricity Market Notice 117595
Manager NEM Real Time Operations
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.
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: 12/08/2024 14:34
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 117653
Auto-generated on behalf of Manager NEM Real Time Operations