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Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 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: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 11/12/2024 03:49
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 121706
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 11/12/2024 01:45 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region beginning on 16/12/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121694 has been updated at 1900 hrs 10/12/2024 to the following:
[1.] From 1700 hrs 16/12/2024 to 1900 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 318 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/12/2024
Cancellation - Possible intervention to manage power system security in South Australia (SA) region 11/12/2024
Refer Market Notice 121685
AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1615 hrs 10/12/2024.
Manager NEM Real Time Operations
CHG0100201 | Production | Planned maintenance affecting the AEMO Market Network
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MarketNet
Change Title: Planned maintenance affecting the AEMO Market Network.
Change Start Date & Time: 16/12/2024 08:00:00 AEST
Change End Date & Time: 17/12/2024 17:00:00 AEST
Outage Start Date & Time: 16/12/2024 15:12:00 AEST
Outage End Date & Time: 16/12/2024 15:13:00 AEST
Environment: Production
Participant Impact and Requirements: Planned maintenance will be conducted on the 16th of December 2024, between 07:30AM and 05:00PM AEST on the core network infrastructure within the AEMO Market Network in Brisbane.
During there change, there will be two instances of 1-3 second service disruption to MarketNet Services accessed via Brisbane as traffic moves from the active to the standby load balancing unit. All Services should return to normal after this time. Traffic via Sydney will not be affected during this time. AEMO recommends that all market participants with site to site VPN connections currently connected via Brisbane, to switch these connections to the Sydney site as a precaution.
Participants connecting via IPWAN and/or SSL VPN will be automatically connected to the Sydney site and do not need to take any action.
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 .
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/12/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121687 has been updated at 1400 hrs 10/12/2024 to the following:
1. From 1630 hrs to 1930 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 277 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
CHG0100257 | Production | MarketNet Services via Brisbane service disruption for 1-3 seconds as traffic is failed between highly available load balancing services
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Local Area Network
Change Title: MarketNet Services via Brisbane service disruption for 1-3 seconds as traffic is failed between highly available load balancing services.
Change Start Date & Time: 12/12/2024 14:00:00 AEST
Change End Date & Time: 12/12/2024 16:00:00 AEST
Outage Start Date & Time: 12/12/2024 15:00:00 AEST
Outage End Date & Time: 12/12/2024 15:01:00 AEST
Environment: Production
Participant Impact and Requirements: During there change, there will be a 1-3 second service disruption to MarketNet Services accessed via Brisbane as traffic moves from the active to the standby load balancing unit. All Services should return to normal after this time. Traffic via Norwest will not be affected during this time.
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 .
STPASA - Update and correction of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/12/2024
Correction to Market Notice 121686, the external reference for the forecast LOR2 in the NSW region should read: 16/12/2024.
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121686 has been updated at 1200 hrs 10/12/2024 to the following:
1. From 1730 hrs to 1830 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 592 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/10/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121683 has been updated at 0800hrs 10/12/2024 to the following:
1. From 1700 hrs to 1900 hrs 16/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 336 MW.
AEMO is seeking a market response.
AEMO Operations