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Changes to raise FCAS requirements in Tasmania
Changes to raise FCAS requirements in Tasmania
Refer to AEMO Electricity market notice 51618
The adaptive under-frequency load shedding scheme (AUFLS) was implemented in January 2016 to reduce the contingency raise FCAS requirements in Tasmania. TasNetworks has advised AEMO this scheme was disabled at 1000 hrs 8 June 2016. Tasmanian contingency FCAS requirements now do not use the reduction provided by this scheme.
Ben Blake
AEMO Operations
Update - Non-Credible Contingency Event - Vic Region - 8 June 2016
Update - Non-credible contingency event - Victoria region - 8 June 2016
Update to MN 53704
At 0219 hrs the Yallourn No. 2 220 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Non-Credible Contingency Event - Vic Region - 8 June 2016
Non-credible contingency event - Victoria region - 8 June 2016
At 0129 hrs the Yallourn No. 2 220 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-Credible Contingency Event - Vic Region - Tues 7th Jun 2016
Non-Credible Contingency Event - Vic Region - Tues 7th Jun 2016
At 1610 hrs the Richmond No 2 and No 4 220 kV Buses tripped in the Victoria region.
(Coincident with a planned outage Rowville - Richmond No 1 220 kV Line )
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is known
Manager NEM Real Time Operations
Constraint Automation to Manage Power Security in Vic Region.
Constraint Automation to Manage Power Security in Vic Region, Monday, 06 June 2016.
AEMO network analysis indicated that the trip of the Hazelwood Power station to Hazelwood Terminal station No.2 220 kV line would result in an overload of the Hazelwood Power station to Hazelwood Terminal station A1 500 / 220 kV transformer.
AEMO invoked automated constraint set CA_SPS_4667C455 from 1850 to 1905 hrs to manage power system security.
Manager NEM Real Time Operations
Cancellation of the Forecast (LOR1) condition in the Tasmania region - PDPASA - 02/06/2016
Cancellation of the Forecast (LOR1) condition in the Tasmania region - PDPASA - 02/06/2016
The Forecast LOR1 condition in the Tasmania Region advised in AEMO Electricity Market Notice No. 53580 is cancelled at 0710hrs 02/06/2016.
Manager NEM Real Time Operations
Forecast Lack Of Reserve Level 1 (LOR1) in the Tasmania Region - PD PASA - 02/06/2016
Forecast Lack Of Reserve Level 1 (LOR1) in the Tasmania Region - PD PASA - 02/06/2016
AEMO declares a Forecast LOR1 condition for the Tasmania Region.
From 0730 hrs to 0830 hrs Thursday, 2 June 2016
The contingency capacity reserve required is 288 MW
The minimum reserve available is 264 MW
Manager NEM Real Time Operations
Cancellation of the Forecast (LOR1) condition in the Tasmania region - PDPASA - 01/06/2016
Cancellation of the Forecast (LOR1) condition in the Tasmania region - PDPASA - 01/06/2016
The Forecast LOR1 condition in the Tasmania Region advised in AEMO Electricity Market Notices No. 53574 and 53575 is cancelled at 0741hrs 01/06/2016.
Manager NEM Real Time Operations
Update - Forecast Lack Of Reserve Level 1 (LOR1) in the Tasmania Region - PDPASA - 1 June 2016
Update to Market Notice 53574
Forecast Lack Of Reserve Level 1 (LOR1) in the Tasmania Region - PDPASA - 1 June 2016
AEMO declares a Forecast LOR1 condition for the Tasmania Region.
From 0700 hrs to 0930 hrs 01/06/16
The contingency capacity reserve required is 263 MW
The minimum reserve available is 190 MW
Manager NEM Real Time Operations