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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
53797MARKET SYSTEMS09/06/2016 05:18:11 PM
CHG0039127 - Planned System Outage to the Energy Forecasting Web Portal
Market Notice
Change Number: CHG0039127
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Energy Forecasting Web Portal
Change Title: Planned System Outage to the Energy Forecasting Web Portal
Change Start Date & Time: 10/06/2016 09:00:00 AEST
Change End Date & Time: 10/06/2016 13:00:00 AEST
Outage Start Date & Time: 10/06/2016 10:00:00 AEST
Outage End Date & Time: 10/06/2016 13:00:00 AEST
Change Description:
Update of Forecasting Interactive Website (http://forecasting.aemo.com.au) to prepare for release of 2016 National Electricity Forecasting report.
Environment: Production
Participant Impact and Requirements:
Forecasting Interactive Website and associated Administration Webpage may not be available during the deployment window. Users need to try accessing the website after the deployment is completed as mentioned in the timeline.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Change Number: CHG0039127
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Energy Forecasting Web Portal
Change Title: Planned System Outage to the Energy Forecasting Web Portal
Change Start Date & Time: 10/06/2016 09:00:00 AEST
Change End Date & Time: 10/06/2016 13:00:00 AEST
Outage Start Date & Time: 10/06/2016 10:00:00 AEST
Outage End Date & Time: 10/06/2016 13:00:00 AEST
Change Description:
Update of Forecasting Interactive Website (http://forecasting.aemo.com.au) to prepare for release of 2016 National Electricity Forecasting report.
Environment: Production
Participant Impact and Requirements:
Forecasting Interactive Website and associated Administration Webpage may not be available during the deployment window. Users need to try accessing the website after the deployment is completed as mentioned in the timeline.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53795MARKET SYSTEMS09/06/2016 05:17:55 PM
CHG0039217 - Planned System Outage - QLD MarketNet VPN POP
Market Notice
Change Number: CHG0039217
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Market Network
Change Title: Planned System Outage - QLD MarketNet VPN POP
Change Start Date & Time: 16/06/2016 10:00:00 AEST
Change End Date & Time: 16/06/2016 12:00:00 AEST
Outage Start Date & Time: 16/06/2016 10:00:00 AEST
Outage End Date & Time: 16/06/2016 12:00:00 AEST
Change Description:
All MarketNet VPN access via the QLD VPN POP will be impacted.
Environment: Production
Participant Impact and Requirements:
All MarketNet VPN access via the QLD VPN POP will be impacted.
Participants are advised to transition to AEMO's NSW VPN POP during this outage window to minimize any potential outages.
-Site-to-Site: 202.44.78.10 or
-Remote Access: 202.44.78.8
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Change Number: CHG0039217
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Market Network
Change Title: Planned System Outage - QLD MarketNet VPN POP
Change Start Date & Time: 16/06/2016 10:00:00 AEST
Change End Date & Time: 16/06/2016 12:00:00 AEST
Outage Start Date & Time: 16/06/2016 10:00:00 AEST
Outage End Date & Time: 16/06/2016 12:00:00 AEST
Change Description:
All MarketNet VPN access via the QLD VPN POP will be impacted.
Environment: Production
Participant Impact and Requirements:
All MarketNet VPN access via the QLD VPN POP will be impacted.
Participants are advised to transition to AEMO's NSW VPN POP during this outage window to minimize any potential outages.
-Site-to-Site: 202.44.78.10 or
-Remote Access: 202.44.78.8
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
53628MARKET SYSTEMS05/06/2016 06:08:23 PM
INC0022428 - Unplanned System Outage - Gas Bulletin Board - service restored
Market Notice
Incident Number: INC0022428
Notification issued to: Market Notice
Notification Type: Alert/Update
Service/ Component: Gas Bulletin Board
Title: Unplanned System Outage - Gas Bulletin Board - service restored
Impacts:
Participants were unable to upload files to the Gas Bulletin Board via website or FTP
User Requirements:
Participants to be aware that the Gas Bulletin Board website and FTP service has been restored.
Participants might experience some slow upload performance as the Gas Bulletin Board returns to normal.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Enterprise Technology Services
Incident Number: INC0022428
Notification issued to: Market Notice
Notification Type: Alert/Update
Service/ Component: Gas Bulletin Board
Title: Unplanned System Outage - Gas Bulletin Board - service restored
Impacts:
Participants were unable to upload files to the Gas Bulletin Board via website or FTP
User Requirements:
Participants to be aware that the Gas Bulletin Board website and FTP service has been restored.
Participants might experience some slow upload performance as the Gas Bulletin Board returns to normal.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Enterprise Technology Services
53627MARKET SYSTEMS05/06/2016 05:09:27 PM
INC0022428 - Unplanned System Outage - Gas Bulletin Board
Market Notice
Incident Number: INC0022428
Notification issued to: Market Notice
Notification Type: Alert/Update
Service/ Component: Gas Bulletin Board
Title: Unplanned System Outage - Gas Bulletin Board
Impacts:
Participants unable to upload files to the Gas Bulletin Board via website or FTP
User Requirements:
Participants to be aware that AEMO are working to resolve an uplanned outage of the Gas Bulletin Board
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Enterprise Technology Services
Incident Number: INC0022428
Notification issued to: Market Notice
Notification Type: Alert/Update
Service/ Component: Gas Bulletin Board
Title: Unplanned System Outage - Gas Bulletin Board
Impacts:
Participants unable to upload files to the Gas Bulletin Board via website or FTP
User Requirements:
Participants to be aware that AEMO are working to resolve an uplanned outage of the Gas Bulletin Board
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Enterprise Technology Services
53617RECLASSIFY CONTINGENCY04/06/2016 02:35:54 AM
Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
Refer to AEMO Electricity Market Notice no. 53614
There is no longer any Lightning activity in the vicinity of the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0235 hrs.
Manager NEM Real Time Operations
Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
Refer to AEMO Electricity Market Notice no. 53614
There is no longer any Lightning activity in the vicinity of the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0235 hrs.
Manager NEM Real Time Operations
53616RECLASSIFY CONTINGENCY04/06/2016 01:51:28 AM
Cancellation of the Reclassification of a Non-Credible Contingency Event: Collinsville North - Mackay Tee Proserpine 7125 and 7126 132 kV Lines in Queensland due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the Reclassification of a Non-Credible Contingency Event: Collinsville North - Mackay Tee Proserpine 7125 and 7126 132 kV Lines in Queensland due to Lightning.
Refer AEMO Electricity Market Notice 53607
There is no longer any lightning activity in the vicinity of the Collinsville North - Mackay Tee Proserpine 7125 and 7126 132 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0150 hrs.
Manager NEM Real Time Operations
Cancellation of the Reclassification of a Non-Credible Contingency Event: Collinsville North - Mackay Tee Proserpine 7125 and 7126 132 kV Lines in Queensland due to Lightning.
Refer AEMO Electricity Market Notice 53607
There is no longer any lightning activity in the vicinity of the Collinsville North - Mackay Tee Proserpine 7125 and 7126 132 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0150 hrs.
Manager NEM Real Time Operations
53615RECLASSIFY CONTINGENCY04/06/2016 01:23:31 AM
Cancellation of the Reclassification of a Non-Credible Contingency Event: Collinsville - Stoney Ck 7306 and Collinsville - Newlands 7121 132 kV Lines in Qld Region due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of the Reclassification of a Non-Credible Contingency Event: Collinsville - Stoney Ck 7306 and Collinsville - Newlands 7121 132 kV Lines in Qld Region due to Lightning.
Refer to AEMO Electricity Market Notice 53604
There is no longer any lightning activity in the vicinity of the Collinsville - Stoney Ck 7306 and Collinsville - Newlands 7121 132 kV Lines
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event from 0120 hrs.
Manager NEM Real Time Operations
Cancellation of the Reclassification of a Non-Credible Contingency Event: Collinsville - Stoney Ck 7306 and Collinsville - Newlands 7121 132 kV Lines in Qld Region due to Lightning.
Refer to AEMO Electricity Market Notice 53604
There is no longer any lightning activity in the vicinity of the Collinsville - Stoney Ck 7306 and Collinsville - Newlands 7121 132 kV Lines
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event from 0120 hrs.
Manager NEM Real Time Operations