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53991RECLASSIFY CONTINGENCY19/06/2016 03:01:21 AM
Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin 857 and 858 275 kV Lines in Queensland due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin 857 and 858 275 kV Lines in Queensland due to Lightning.
Lightning is occurring near the Ross - Chalumbin 857 and 858 275 kV Lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 0300 hrs 19/06/2016 until further notice.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin 857 and 858 275 kV Lines in Queensland due to Lightning.
Lightning is occurring near the Ross - Chalumbin 857 and 858 275 kV Lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 0300 hrs 19/06/2016 until further notice.
Manager NEM Real Time Operations
53979MARKET SYSTEMS16/06/2016 10:56:02 AM
CHG0039537 - Planned System Change - Yearly update of the MPC/CPT values in EMMS Production
Change Number: CHG0039537
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: Planned System Change - Yearly update of the MPC/CPT values in EMMS Production
Change Start Date & Time: 24/06/2016 08:00:00 AEST
Change End Date & Time: 24/06/2016 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Please see attached Change Notice.
Environment: Production
Participant Impact and Requirements:
This change details the implementation of Transmission Loss Factors (TLFs), Interconnector Loss Models (ILMs), and Distribution Loss factors (DLFs) values for the period 1 July 2016 to 30 June 2017.
Details of the methodology and specific loss factors are not covered by the change.
Values to be loaded 24th June 2016 effective Date is the 1st July 2016
This change also covers the updating of the following:
Market Price Cap, Market Floor Price and Cumulative Price Threshold values as published on the AEMC website.
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: Electricity Market Management System
Change Title: Planned System Change - Yearly update of the MPC/CPT values in EMMS Production
Change Start Date & Time: 24/06/2016 08:00:00 AEST
Change End Date & Time: 24/06/2016 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Please see attached Change Notice.
Environment: Production
Participant Impact and Requirements:
This change details the implementation of Transmission Loss Factors (TLFs), Interconnector Loss Models (ILMs), and Distribution Loss factors (DLFs) values for the period 1 July 2016 to 30 June 2017.
Details of the methodology and specific loss factors are not covered by the change.
Values to be loaded 24th June 2016 effective Date is the 1st July 2016
This change also covers the updating of the following:
Market Price Cap, Market Floor Price and Cumulative Price Threshold values as published on the AEMC website.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53973MARKET SYSTEMS15/06/2016 04:26:02 PM
CHG0039588 - Planned System Change - EMMS Production: Generator Ramp Rate Rule Change
Change Number: CHG0039588
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: Planned System Change - EMMS Production: Generator Ramp Rate Rule Change
Change Start Date & Time: 21/06/2016 13:00:00 AEST
Change End Date & Time: 21/06/2016 15:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
This change is to support the new generator ramp rate rules starting on 1st July 2016.
As part of this change AEMO will publish data informing Participants of their Minimum Ramp Rates including Generator DUID and individual unit max capacities. (Refer to the AEMO Tech Spec 931 re-issued on 3rd June 2016 for more information.)
The new minimum Ramp Rates will become effective and be used in validation from trading day 01/07/16 in Production.
Environment: Production
Participant Impact and Requirements:
This rule change results in some DUIDs having a changed Minimum Ramp Rate used in offer validation.
AEMO reminds participants to ensure that any previously accepted offers are revised for compliance with the new Minimum Ramp Rate.
AEMO will contact Participants if they are potentially in breach of the Minimum Ramp Rate rule requirements before the rule becomes effective.
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: Planned System Change - EMMS Production: Generator Ramp Rate Rule Change
Change Start Date & Time: 21/06/2016 13:00:00 AEST
Change End Date & Time: 21/06/2016 15:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
This change is to support the new generator ramp rate rules starting on 1st July 2016.
As part of this change AEMO will publish data informing Participants of their Minimum Ramp Rates including Generator DUID and individual unit max capacities. (Refer to the AEMO Tech Spec 931 re-issued on 3rd June 2016 for more information.)
The new minimum Ramp Rates will become effective and be used in validation from trading day 01/07/16 in Production.
Environment: Production
Participant Impact and Requirements:
This rule change results in some DUIDs having a changed Minimum Ramp Rate used in offer validation.
AEMO reminds participants to ensure that any previously accepted offers are revised for compliance with the new Minimum Ramp Rate.
AEMO will contact Participants if they are potentially in breach of the Minimum Ramp Rate rule requirements before the rule becomes effective.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53972MARKET SYSTEMS15/06/2016 04:24:05 PM
CHG0039546 - Planned System Outage due to NOS application version update to 3.0.9 (Pre-Production)
Change Number: CHG0039546
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Network Outage Scheduler
Change Title: Planned System Outage due to NOS application version update to 3.0.9 (Pre-Production)
Change Start Date & Time: 16/06/2016 10:00:00 AEST
Change End Date & Time: 16/06/2016 11:00:00 AEST
Outage Start Date & Time: 16/06/2016 10:00:00 AEST
Outage End Date & Time: 16/06/2016 10:20:00 AEST
Change Description:
The upgrade will include minor enhancements to AEMO NOS Pre-production user interface
Environment: Pre-Production
Participant Impact and Requirements:
Pre-Production NOS will be unavailable during the specified outage times.
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: Network Outage Scheduler
Change Title: Planned System Outage due to NOS application version update to 3.0.9 (Pre-Production)
Change Start Date & Time: 16/06/2016 10:00:00 AEST
Change End Date & Time: 16/06/2016 11:00:00 AEST
Outage Start Date & Time: 16/06/2016 10:00:00 AEST
Outage End Date & Time: 16/06/2016 10:20:00 AEST
Change Description:
The upgrade will include minor enhancements to AEMO NOS Pre-production user interface
Environment: Pre-Production
Participant Impact and Requirements:
Pre-Production NOS will be unavailable during the specified outage times.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53971MARKET SYSTEMS15/06/2016 04:20:14 PM
CHG0039558 - Planned System Outage due to NOS application version update to 3.0.9 (Production)
Change Number: CHG0039558
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Network Outage Scheduler
Change Title: Planned System Outage due to NOS application version update to 3.0.9 (Production)
Change Start Date & Time: 22/06/2016 10:00:00 AEST
Change End Date & Time: 22/06/2016 11:00:00 AEST
Outage Start Date & Time: 22/06/2016 10:00:00 AEST
Outage End Date & Time: 22/06/2016 10:20:00 AEST
Change Description:
The upgrade will include minor enhancements to AEMO NOS user interface.
Environment: Production
Participant Impact and Requirements:
Production NOS will be unavailable during the specified outage times.
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: Network Outage Scheduler
Change Title: Planned System Outage due to NOS application version update to 3.0.9 (Production)
Change Start Date & Time: 22/06/2016 10:00:00 AEST
Change End Date & Time: 22/06/2016 11:00:00 AEST
Outage Start Date & Time: 22/06/2016 10:00:00 AEST
Outage End Date & Time: 22/06/2016 10:20:00 AEST
Change Description:
The upgrade will include minor enhancements to AEMO NOS user interface.
Environment: Production
Participant Impact and Requirements:
Production NOS will be unavailable during the specified outage times.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53970MARKET SYSTEMS15/06/2016 04:17:36 PM
CHG0039552 - Planned System Outage - NSW MarketNet Load-Balancer - Software Patch Update
Change Number: CHG0039552
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Market Network
Change Title: Planned System Outage - NSW MarketNet Load-Balancer - Software patch update
Change Start Date & Time: 21/06/2016 09:30:00 AEST
Change End Date & Time: 21/06/2016 14:00:00 AEST
Outage Start Date & Time: 21/06/2016 10:00:00 AEST
Outage End Date & Time: 21/06/2016 12:00:00 AEST
Change Description:
Vendor recommended the patch to be applied to mitigate a number of software bugs and vulnerabilities that may compromise the stability of the load-balancer.
Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:
IPWAN Participants - Marketnet IPWAN will experience 2 x 30 second disruptions
Lan-2-Lan VPN Participants - Participant connected to the NSW VPN gateway (202.44.78.10) will experience 2 disruptions lasting 30 seconds each.
To avoid disruptions, please connect via the QLD VPN gateway (202.44.76.10) prior to Change start time as mentioned above.
Remote Access VPN Participants - Participants who utilise an AEMO RSA token and the AEMO VPN client software to establish their VPN via the AEMO NSW datacenter VPN termination point (202.44.78.8)
will experience three disruptions lasting 30 seconds each.
Note: Participants are advised to establish their VPN client software connections via the alternate AEMO QLD datacenter VPN endpoint (202.44.76.8) 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: Normal
Service/ Component: Market Network
Change Title: Planned System Outage - NSW MarketNet Load-Balancer - Software patch update
Change Start Date & Time: 21/06/2016 09:30:00 AEST
Change End Date & Time: 21/06/2016 14:00:00 AEST
Outage Start Date & Time: 21/06/2016 10:00:00 AEST
Outage End Date & Time: 21/06/2016 12:00:00 AEST
Change Description:
Vendor recommended the patch to be applied to mitigate a number of software bugs and vulnerabilities that may compromise the stability of the load-balancer.
Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:
IPWAN Participants - Marketnet IPWAN will experience 2 x 30 second disruptions
Lan-2-Lan VPN Participants - Participant connected to the NSW VPN gateway (202.44.78.10) will experience 2 disruptions lasting 30 seconds each.
To avoid disruptions, please connect via the QLD VPN gateway (202.44.76.10) prior to Change start time as mentioned above.
Remote Access VPN Participants - Participants who utilise an AEMO RSA token and the AEMO VPN client software to establish their VPN via the AEMO NSW datacenter VPN termination point (202.44.78.8)
will experience three disruptions lasting 30 seconds each.
Note: Participants are advised to establish their VPN client software connections via the alternate AEMO QLD datacenter VPN endpoint (202.44.76.8) prior to this scheduled outage.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53964RECLASSIFY CONTINGENCY14/06/2016 11:26:00 AM
Cancellation - Reclassification of the loss of Wagga 132kV B bus, the No2 and the No3 330/132kV transformers in NSW region.
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Reclassification of the loss of Wagga 132 kV B bus, the No 2 and the No 3 330/132 kV transformers in NSW region - 14/06/2016.
Refer to Electricity Market Notice 53874 and 53888
Based on advice from the asset owner the circumstances that existed in relation to the tripping of the Wagga substation 132 kV B bus, the No2 and the No3 330/132 kV transformers have now been addressed
Therefore AEMO no longer considers the simultaneous trip of the Wagga substation 132 kV B bus, the No2 and the No3 330/132 kV transformers to be a credible contingency event from 1055 hrs 14/06/2016 .
Manager NEM Real Time Operations
Cancellation - Reclassification of the loss of Wagga 132 kV B bus, the No 2 and the No 3 330/132 kV transformers in NSW region - 14/06/2016.
Refer to Electricity Market Notice 53874 and 53888
Based on advice from the asset owner the circumstances that existed in relation to the tripping of the Wagga substation 132 kV B bus, the No2 and the No3 330/132 kV transformers have now been addressed
Therefore AEMO no longer considers the simultaneous trip of the Wagga substation 132 kV B bus, the No2 and the No3 330/132 kV transformers to be a credible contingency event from 1055 hrs 14/06/2016 .
Manager NEM Real Time Operations
53957RECLASSIFY CONTINGENCY13/06/2016 12:09:39 PM
Update - Reclassification of a Non-Credible Contingency Event in TAS Region
AEMO ELECTRICITY MARKET NOTICE
Update - Reclassification of a Non-Credible Contingency Event in TAS Region:
Trip of any Tasmanian Transmission Line and Basslink Interconnector for Basslink flow in the direction of Victoria to Tasmania
Refer to MN 47360 issued 19/12/2014 and MN 47855 issued 23/01/2015.
Advice provided to AEMO indicates that Basslink is unlikely to trip for 220 kV transmission faults close to George Town. As the George Town to Tamar Valley power station 220 kV lines are very short it is unlikely that Basslink will trip for a fault on these lines.
Based on this advice AEMO has reclassified the loss of any transmission line in Tasmania and Basslink Interconnector to be a credible contingency event for Basslink flow in the direction of Victoria to Tasmania only, except for faults on either of the two George Town to Pacific Aluminium 220 kV transmission lines or the George Town to Tamar Valley power station 220 kV transmission line, from 1151 hrs 13/06/2016 until further notice.
Manager NEM Real Time Operations
Update - Reclassification of a Non-Credible Contingency Event in TAS Region:
Trip of any Tasmanian Transmission Line and Basslink Interconnector for Basslink flow in the direction of Victoria to Tasmania
Refer to MN 47360 issued 19/12/2014 and MN 47855 issued 23/01/2015.
Advice provided to AEMO indicates that Basslink is unlikely to trip for 220 kV transmission faults close to George Town. As the George Town to Tamar Valley power station 220 kV lines are very short it is unlikely that Basslink will trip for a fault on these lines.
Based on this advice AEMO has reclassified the loss of any transmission line in Tasmania and Basslink Interconnector to be a credible contingency event for Basslink flow in the direction of Victoria to Tasmania only, except for faults on either of the two George Town to Pacific Aluminium 220 kV transmission lines or the George Town to Tamar Valley power station 220 kV transmission line, from 1151 hrs 13/06/2016 until further notice.
Manager NEM Real Time Operations
53888RECLASSIFY CONTINGENCY11/06/2016 05:15:46 PM
Reclassification of the loss of Wagga 132kV B bus, No2 and No3 transformer as a credible event 11 June 2016
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO ELECTRICITY MARKET NOTICE 53874
At 0950 hrs on 11/06/16, the Wagga substation 132kV B bus, the No2 and the No3 330/132kV transformers tripped.
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 therefore classifies this event as being a credible contingency event.
The No3 330/132kV transformer and the bus were placed on load from 1430hrs, the No2 330/132kV transformer remains de-energised.
Manager NEM Real Time Operations
Refer AEMO ELECTRICITY MARKET NOTICE 53874
At 0950 hrs on 11/06/16, the Wagga substation 132kV B bus, the No2 and the No3 330/132kV transformers tripped.
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 therefore classifies this event as being a credible contingency event.
The No3 330/132kV transformer and the bus were placed on load from 1430hrs, the No2 330/132kV transformer remains de-energised.
Manager NEM Real Time Operations