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88770RESERVE NOTICE23/07/2021 04:04:57 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the Qld region on 23/07/2021
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the Qld region for the following period:
From 1930 hrs to 2100 hrs 23/07/2021.
The forecast capacity reserve requirement is 1043 MW.
The minimum capacity reserve available is 963 MW.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the Qld region for the following period:
From 1930 hrs to 2100 hrs 23/07/2021.
The forecast capacity reserve requirement is 1043 MW.
The minimum capacity reserve available is 963 MW.
Manager NEM Real Time Operations
88769MARKET INTERVENTION23/07/2021 03:57:18 PM
Direction - SA Region 23/07/2021
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 23/07/2021
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 dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1605 hrs on 23/07/2021.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 23/07/2021
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 dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1605 hrs on 23/07/2021.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
88765RESERVE NOTICE23/07/2021 02:33:31 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 26/07/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 88733 is cancelled at 1400 hrs 23/07/2021.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 88733 is cancelled at 1400 hrs 23/07/2021.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
88764MARKET SYSTEMS23/07/2021 02:23:33 PM
CHG0067346 : Swap Out Norwest POP Router
Change Number: CHG0067346
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Expedited
Service/ Component: Market Network
Change Title: Swap out Norwest POP Router
Change Start Date & Time: 24/07/2021 10:00:00 AEST
Change End Date & Time: 24/07/2021 14:00:53 AEST
Outage Start Date & Time: 24/07/2021 10:00:11 AEST
Outage End Date & Time: 24/07/2021 12:00:00 AEST
Change Description:
Emergency maintenance on core network infrastructure in AEMO NSW Datacentre
Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:
IPWAN Participants: Nil
SSL VPN Participants: Nil
Lan-2-Lan VPN Participants (IPSEC) - Up to 4 hours to participants who have established their VPN connection via the AEMO NSW datacenter termination point (202.44.78.10)
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) prior to this scheduled outage.
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: Initial
Change Type: Expedited
Service/ Component: Market Network
Change Title: Swap out Norwest POP Router
Change Start Date & Time: 24/07/2021 10:00:00 AEST
Change End Date & Time: 24/07/2021 14:00:53 AEST
Outage Start Date & Time: 24/07/2021 10:00:11 AEST
Outage End Date & Time: 24/07/2021 12:00:00 AEST
Change Description:
Emergency maintenance on core network infrastructure in AEMO NSW Datacentre
Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:
IPWAN Participants: Nil
SSL VPN Participants: Nil
Lan-2-Lan VPN Participants (IPSEC) - Up to 4 hours to participants who have established their VPN connection via the AEMO NSW datacenter termination point (202.44.78.10)
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) prior to this scheduled outage.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
88763RESERVE NOTICE23/07/2021 02:32:35 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 26/07/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 88732 is cancelled at 1400 hrs 23/07/2021.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 88732 is cancelled at 1400 hrs 23/07/2021.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
88762MARKET SYSTEMS23/07/2021 02:15:56 PM
CHG0067492 - Fault Remediation
Change Number: CHG0067492
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: Fault Remediation
Change Start Date & Time: 23/07/2021 15:00:00 AEST
Change End Date & Time: 23/07/2021 16:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Fault Remediation
Environment: Production
Participant Impact and Requirements:
Participants are advised that AEMO has discovered an error in the formulation for 5-minute pre-dispatch (5MPD) scenarios. The scenario offsets that were intended to be applied at the start of each 5MPD scenario have instead been applied cumulatively to each interval over the forecast horizon. AEMO will cease publishing 5MPD scenarios until this error is remedied.
AEMO is currently remediating this as a priority, but the necessary re-certification of the NEMDE formulation and software, followed by a period in pre-production, means that 5MPD scenarios are unlikely to be restored to production for several weeks. AEMO apologises for this inconvenience.
Publication of the 5MPD base case, including fast start inflexibility profiles, is unaffected by this change.
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: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: Fault Remediation
Change Start Date & Time: 23/07/2021 15:00:00 AEST
Change End Date & Time: 23/07/2021 16:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Fault Remediation
Environment: Production
Participant Impact and Requirements:
Participants are advised that AEMO has discovered an error in the formulation for 5-minute pre-dispatch (5MPD) scenarios. The scenario offsets that were intended to be applied at the start of each 5MPD scenario have instead been applied cumulatively to each interval over the forecast horizon. AEMO will cease publishing 5MPD scenarios until this error is remedied.
AEMO is currently remediating this as a priority, but the necessary re-certification of the NEMDE formulation and software, followed by a period in pre-production, means that 5MPD scenarios are unlikely to be restored to production for several weeks. AEMO apologises for this inconvenience.
Publication of the 5MPD base case, including fast start inflexibility profiles, is unaffected by this change.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
88761MARKET INTERVENTION23/07/2021 02:14:27 PM
Update - Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
Update - Possible intervention to manage power system security in South Australia (SA) Region
Refer AEMO Electricity Market Notice 88734
The synchronous generating units currently expected to be synchronised in SA from 0030 hrs 24/07/2021 to 0400 hrs 25/07/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 23/07/2021, 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 South Australia (SA) Region
Refer AEMO Electricity Market Notice 88734
The synchronous generating units currently expected to be synchronised in SA from 0030 hrs 24/07/2021 to 0400 hrs 25/07/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 23/07/2021, 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
88760RECLASSIFY CONTINGENCY23/07/2021 01:44:35 PM
Cancellation of a Non-Credible Contingency Event: Tarong - Chinchilla No.7168 132 kV line and Tarong - Chinchilla No.7183 132 kV line in QLD1 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: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 23/07/2021 13:44
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 88757
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: QLD1
Lines: Tarong - Chinchilla No.7168 132 kV and Tarong - Chinchilla No.7183 132 kV
Cancellation time: 23/07/2021 13:44
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 88757
Auto-generated on behalf of Manager NEM Real Time Operations
88759RECLASSIFY CONTINGENCY23/07/2021 11:14:37 AM
Cancellation of a Non-Credible Contingency Event: Condabri Nth - Condabri Central 7400 132kV line and Condabri Nth - Condabri Central 7401 132kV line in QLD1 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: QLD1
Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 23/07/2021 11:14
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 88758
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: QLD1
Lines: Condabri Nth - Condabri Central 7400 132kV and Condabri Nth - Condabri Central 7401 132kV
Cancellation time: 23/07/2021 11:14
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 88758
Auto-generated on behalf of Manager NEM Real Time Operations