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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.
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
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 09/05/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 116559 has been updated at 1615 hrs to the following:
[1.] From 1630 hrs 09/05/2024 to 1900 hrs 09/05/2024.
The forecast capacity reserve requirement is 1450 MW.
The minimum capacity reserve available is 979 MW.
Manager NEM Real Time Operations
CHG0089532 | Cancelled | Pre-Production | NOR Pre-Prod GSH will have scheduled maintenance works outage from 11.00am Thursday 9 May until 1pm (EST)
Notification issued to: Market Notice
Notification Type: Cancelled
Change Type: Normal
Service/ Component: Gas Supply Hub
Change Title: NOR Pre-Prod GSH will have scheduled maintenance works outage from 11.00am Thursday 9 May until 1pm (EST)
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600
CHG0089539 | Production | QLD Internet Router Refresh
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: 25/05/2024 09:00:08 AEST
Change End Date & Time: 25/05/2024 14:00:08 AEST
Outage Start Date & Time: 25/05/2024 09:30:21 AEST
Outage End Date & Time: 25/05/2024 13:00:21 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 .
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 09/05/2024
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Period:
[1.] From 1700 hrs 09/05/2024 to 1830 hrs 09/05/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1236 MW.
Manager NEM Real Time Operations
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 09/05/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 116556 is cancelled at 0840 hrs 09/05/2024.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer - Qld region.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following elements to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Duration: 1400 hrs 09/05/2024 until further notice
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 09/05/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 116555 has been updated at 0745 hrs to the following:
[1.] From 1730 hrs 09/05/2024 to 1800 hrs 09/05/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1416 MW.
Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 09/05/2024
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 116552 has been updated at 0620 hrs to the following:
[1.] From 1630 hrs 09/05/2024 to 1800 hrs 09/05/2024.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1320 MW.
Manager NEM Real Time Operations