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116219MARKET INTERVENTION20/04/2024 01:50:58 PM
Update - Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 116211
The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 20/04/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1400 hrs 20/04/2024, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 116211
The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 20/04/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1400 hrs 20/04/2024, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
116218MARKET INTERVENTION20/04/2024 04:31:05 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 19/04/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/04/2024
Refer Market Notice 116200
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 20/04/2024
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/04/2024
Refer Market Notice 116200
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 20/04/2024
Manager NEM Real Time Operations
116213MARKET INTERVENTION20/04/2024 02:01:30 PM
Direction - SA region 19/04/2024
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 20/04/2024
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1405 hrs on 20/04/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 20/04/2024
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1405 hrs on 20/04/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
116212SETTLEMENTS RESIDUE20/04/2024 01:00:26 PM
[EventId:202404201300_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 20 April 2024 13:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1300 hrs on 20 April 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 April 2024.
Refer to market notice: 116210
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 1300 hrs on 20 April 2024.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1300 hrs on 20 April 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 April 2024.
Refer to market notice: 116210
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 1300 hrs on 20 April 2024.
This is an AEMO autogenerated Market Notice.
116211MARKET INTERVENTION20/04/2024 12:55:09 PM
Possible intervention to manage power system security in SA Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in SA Region
The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 20/04/2024 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Possible intervention to manage power system security in SA Region
The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 20/04/2024 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
116210SETTLEMENTS RESIDUE20/04/2024 12:05:23 PM
[EventId:202404201205_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 20 April 2024 12:05
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1205 hrs on 20 April 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 April 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 1205 hrs on 20 April 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.
Issued by Australian Energy Market Operator Ltd at 1205 hrs on 20 April 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 20 April 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 1205 hrs on 20 April 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.
116209INTER-REGIONAL TRANSFER20/04/2024 12:10:41 AM
Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024
At 2341 hrs 19/04/2024 there was an unplanned outage of the Tailem Bend 275 kV Capacitor.
The following constraint set(s) invoked at 0005 hrs 20/04/2024
S-TBCP1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tailem Bend 275 kV Capacitor - SA region - 19/04/2024
At 2341 hrs 19/04/2024 there was an unplanned outage of the Tailem Bend 275 kV Capacitor.
The following constraint set(s) invoked at 0005 hrs 20/04/2024
S-TBCP1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116208INTER-REGIONAL TRANSFER19/04/2024 05:09:45 PM
Inter-regional transfer limit variation - Murraylink interconnector - VIC and SA regions - 19/04/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Murraylink interconnector - VIC and SA regions - 19/04/2024
A planned outage of Murraylink interconnector was scheduled from 0800 hrs 24/03/2024 to 1700 hrs 27/04/2024.
The outage has been completed and Murraylink interconnector returned to service at 1710 hrs 19/04/2024
Constraint set(s) revoked: I-MURRAYLINK
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Murraylink interconnector - VIC and SA regions - 19/04/2024
A planned outage of Murraylink interconnector was scheduled from 0800 hrs 24/03/2024 to 1700 hrs 27/04/2024.
The outage has been completed and Murraylink interconnector returned to service at 1710 hrs 19/04/2024
Constraint set(s) revoked: I-MURRAYLINK
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116207MARKET SYSTEMS19/04/2024 02:58:59 PM
CHG0088386 | Production | QLD Internet Router Refresh
Change Number: CHG0088386
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Internet Access
Change Title: QLD Internet Router Refresh
Change Start Date & Time: 04/05/2024 09:00:01 AEST
Change End Date & Time: 04/05/2024 14:00:01 AEST
Outage Start Date & Time: 04/05/2024 09:30:32 AEST
Outage End Date & Time: 04/05/2024 12:30:32 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 2 hour outage for participants who have established their VPN connection/s via the AEMO QLD datacenter termination point (202.44.76.10) only - All L2L connections should be established to both QLD / NSW.
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 NSW datacenter termination point (202.44.78.10) prior to this scheduled outage.
B2B VPN - Up to 2 hour outage to TNSPs with B2B VPN to AEMO QLD Datacentre if VPN connection is only terminating in QLD only
SSL VPN Participants: None expected as DNS entry will be updated to remove QLD IP.
GASHUB: No impact is expected as GASHUB is currently operating out of NOR Datacenter.
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: QLD Internet Router Refresh
Change Start Date & Time: 04/05/2024 09:00:01 AEST
Change End Date & Time: 04/05/2024 14:00:01 AEST
Outage Start Date & Time: 04/05/2024 09:30:32 AEST
Outage End Date & Time: 04/05/2024 12:30:32 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 2 hour outage for participants who have established their VPN connection/s via the AEMO QLD datacenter termination point (202.44.76.10) only - All L2L connections should be established to both QLD / NSW.
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 NSW datacenter termination point (202.44.78.10) prior to this scheduled outage.
B2B VPN - Up to 2 hour outage to TNSPs with B2B VPN to AEMO QLD Datacentre if VPN connection is only terminating in QLD only
SSL VPN Participants: None expected as DNS entry will be updated to remove QLD IP.
GASHUB: No impact is expected as GASHUB is currently operating out of NOR Datacenter.
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 .