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124437MINIMUM SYSTEM LOAD10/02/2025 03:30:40 PM
Forecast Minimum System Load (MSL1) condition in the VIC region on 16/02/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 16/02/2025.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 2060 MW
o MSL2 - 1560 MW
o MSL3 - 1060 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1130 hrs to 1430 hrs 16/02/2025. Minimum regional demand is forecast to be 1838 MW at 1330 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 16/02/2025.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 2060 MW
o MSL2 - 1560 MW
o MSL3 - 1060 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
From 1130 hrs to 1430 hrs 16/02/2025. Minimum regional demand is forecast to be 1838 MW at 1330 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations
124418MARKET SYSTEMS10/02/2025 11:43:25 AM
INC0140978 - ALERT - Frequency Performance Payments (FPP) System
AEMO ELECTRICITY MARKET NOTICE
ALERT - Frequency Performance Payments (FPP) System
AEMO experienced service interruption relating to Frequency Performance Payments (FPP) System. The FPP System was unable to calculate & publish Contribution Factors (CFs) from 14:36 Hrs AEST on 9/02/2025 till 09:34 Hrs AEST on 10/02/2025.
The service interruption relating to Frequency Performance Payments (FPP) System has now been resolved.
Default Contribution Factors (DCFs) will be applicable for the trading intervals where CFs were not calculated.
For further enquiries please contact the AEMO Support Hub
Phone: 1300 236 600
Email: supporthub@aemo.com.au
ALERT - Frequency Performance Payments (FPP) System
AEMO experienced service interruption relating to Frequency Performance Payments (FPP) System. The FPP System was unable to calculate & publish Contribution Factors (CFs) from 14:36 Hrs AEST on 9/02/2025 till 09:34 Hrs AEST on 10/02/2025.
The service interruption relating to Frequency Performance Payments (FPP) System has now been resolved.
Default Contribution Factors (DCFs) will be applicable for the trading intervals where CFs were not calculated.
For further enquiries please contact the AEMO Support Hub
Phone: 1300 236 600
Email: supporthub@aemo.com.au
124301POWER SYSTEM EVENTS07/02/2025 03:34:46 PM
Update - Non-credible contingency event - NSW region - 23/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123615
At 0240 hrs on the 23/01/2025 there was a trip and auto reclose of the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123615
At 0240 hrs on the 23/01/2025 there was a trip and auto reclose of the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
124299MARKET SYSTEMS07/02/2025 03:01:12 PM
CHG0101145 | Production | Planned Maintenance to Norwest Internet Router
Change Number: CHG0101145
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Internet Access
Change Title: Planned Maintenance to Norwest Internet Router
Change Start Date & Time: 15/02/2025 10:00:00 AEST
Change End Date & Time: 15/02/2025 15:00:00 AEST
Outage Start Date & Time: 15/02/2025 11:00:00 AEST
Outage End Date & Time: 15/02/2025 13:00:00 AEST
Environment: Production
Participant Impact and Requirements: The following impacts are expected to participant connectivity during this planned outage:
IPWAN Participants - Nil
Lan-2-Lan VPN Participants (IPSEC) - Up to 1 Hour outage for participants who have established their VPN connection/s via the AEMO NSW datacenter termination point (202.44.78.10 for Policy Based VPN and 202.44.78.12 for Route Based VPN) only - All L2L connections should be established to both QLD / NSW.
B2B VPN - Up to 1 hour outage to TNSPs with B2B VPN to AEMO NSW Datacentre if VPN connection is only terminating in NSW only.
SSL VPN Participants: None expected as DNS entry will be updated to remove NSW IP.
GASHUB: Nil
Note: Participants are encouraged to ensure their VPN connections are already established or are configured (as per AEMO best practice) to automatically failover to the alternate AEMO QLD datacenter termination point 202.44.76.10 for Policy Based VPN and 202.44.76.12 for Route Based VPN) prior to this scheduled outage.
*** Failure to do so will impact connectivity to Marketnet Services. ***
Other Impacts will have been communicated in advance.
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: Internet Access
Change Title: Planned Maintenance to Norwest Internet Router
Change Start Date & Time: 15/02/2025 10:00:00 AEST
Change End Date & Time: 15/02/2025 15:00:00 AEST
Outage Start Date & Time: 15/02/2025 11:00:00 AEST
Outage End Date & Time: 15/02/2025 13:00:00 AEST
Environment: Production
Participant Impact and Requirements: The following impacts are expected to participant connectivity during this planned outage:
IPWAN Participants - Nil
Lan-2-Lan VPN Participants (IPSEC) - Up to 1 Hour outage for participants who have established their VPN connection/s via the AEMO NSW datacenter termination point (202.44.78.10 for Policy Based VPN and 202.44.78.12 for Route Based VPN) only - All L2L connections should be established to both QLD / NSW.
B2B VPN - Up to 1 hour outage to TNSPs with B2B VPN to AEMO NSW Datacentre if VPN connection is only terminating in NSW only.
SSL VPN Participants: None expected as DNS entry will be updated to remove NSW IP.
GASHUB: Nil
Note: Participants are encouraged to ensure their VPN connections are already established or are configured (as per AEMO best practice) to automatically failover to the alternate AEMO QLD datacenter termination point 202.44.76.10 for Policy Based VPN and 202.44.76.12 for Route Based VPN) prior to this scheduled outage.
*** Failure to do so will impact connectivity to Marketnet Services. ***
Other Impacts will have been communicated in advance.
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 .
124190MARKET SYSTEMS05/02/2025 04:23:24 PM
CHG0100111 | Pre-Production | Pre-Prod eMDM February Maintenance Release
Change Number: CHG0100111
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM February Maintenance Release
Change Start Date & Time: 11/02/2025 13:00:00 AEST
Change End Date & Time: 11/02/2025 17:00:00 AEST
Outage Start Date & Time: 11/02/2025 13:00:00 AEST
Outage End Date & Time: 11/02/2025 15:00:00 AEST
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: MDM - Meter Data Management_PreProd
Change Title: Pre-Prod eMDM February Maintenance Release
Change Start Date & Time: 11/02/2025 13:00:00 AEST
Change End Date & Time: 11/02/2025 17:00:00 AEST
Outage Start Date & Time: 11/02/2025 13:00:00 AEST
Outage End Date & Time: 11/02/2025 15:00:00 AEST
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 .
124181POWER SYSTEM EVENTS05/02/2025 03:22:35 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124044
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124044
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
124077MARKET SYSTEMS04/02/2025 02:17:21 PM
CHG0101137 | Completed | Production | Planned Maintenance to Norwest Marketnet Site to Site VPN Router
Change Number: CHG0101137
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Local Area Network
Change Title: Planned Maintenance to Norwest Marketnet Site to Site VPN Router
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: Local Area Network
Change Title: Planned Maintenance to Norwest Marketnet Site to Site VPN Router
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
124044POWER SYSTEM EVENTS03/02/2025 02:13:15 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
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: TAS
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
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: TAS
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
124043POWER SYSTEM EVENTS03/02/2025 02:02:24 PM
Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 and No.2 220 kV lines tripped.
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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 and No.2 220 kV lines tripped.
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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations