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54699ADMINISTERED PRICE CAP11/08/2016 07:20:17 PM
[EventId:77] AP STARTED for market ancillary services in SA at 11 August 2016 19:25
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1920 hrs on 11 August 2016
ADMINISTERED PRICE PERIOD DECLARED in SA region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower Reg services(s) prices for the SA region over the previous 2016 dispatch intervals has exceeded 6 times the cumulative price threshold (CPT) of $210,100.00.
In accordance with Clause 3.14 of the National Electricity Rules, AEMO has determined that an administered price period will commence at the dispatch interval starting 1925 hrs on 11 Aug 2016 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all dispatch intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA region.
An administered floor price (AFP) of 0 $/MWh AFP will apply to all market ancillary service prices.
AEMO will continue to monitor the rolling sum of the uncapped market ancillary service prices and issue further market notices as required.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1920 hrs on 11 August 2016
ADMINISTERED PRICE PERIOD DECLARED in SA region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower Reg services(s) prices for the SA region over the previous 2016 dispatch intervals has exceeded 6 times the cumulative price threshold (CPT) of $210,100.00.
In accordance with Clause 3.14 of the National Electricity Rules, AEMO has determined that an administered price period will commence at the dispatch interval starting 1925 hrs on 11 Aug 2016 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all dispatch intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA region.
An administered floor price (AFP) of 0 $/MWh AFP will apply to all market ancillary service prices.
AEMO will continue to monitor the rolling sum of the uncapped market ancillary service prices and issue further market notices as required.
This is an AEMO autogenerated Market Notice.
54639POWER SYSTEM EVENTS31/07/2016 06:25:53 AM
Non-credible contingency event - Tas Region - 31 July 2016
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - Tas Region - 31 July 2016
At 0602 hrs the Farrell - Reece No 1 and the Farrell - Reece No 2 220 kV Lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
AEMO will reclassify this event as a credible contingency event due to lightning
Manager NEM Real Time Operations
Non-credible contingency event - Tas Region - 31 July 2016
At 0602 hrs the Farrell - Reece No 1 and the Farrell - Reece No 2 220 kV Lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
AEMO will reclassify this event as a credible contingency event due to lightning
Manager NEM Real Time Operations
54498POWER SYSTEM EVENTS14/07/2016 02:27:07 AM
Non-credible contingency event - Queensland Region - 14/07/16
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - Queensland Region - 14/07/16
At 0103 hrs the Woree 275kV circuit breaker 8772 opened automatically offloading the Challumbin -Woree 275kV line
At 0117 hrs the Challumbin -Woree 275kV line was placed on load
At 0140 hrs the Woree 275kV circuit breaker 8772 opened automatically offloading the Challumbin -Woree 275kV line
At 0206 hrs the Challumbin -Woree 275kV line was placed on load
AEMO has not been advised of any disconnection of bulk electrical load.
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.
Manager NEM Real Time Operations
Non-credible contingency event - Queensland Region - 14/07/16
At 0103 hrs the Woree 275kV circuit breaker 8772 opened automatically offloading the Challumbin -Woree 275kV line
At 0117 hrs the Challumbin -Woree 275kV line was placed on load
At 0140 hrs the Woree 275kV circuit breaker 8772 opened automatically offloading the Challumbin -Woree 275kV line
At 0206 hrs the Challumbin -Woree 275kV line was placed on load
AEMO has not been advised of any disconnection of bulk electrical load.
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.
Manager NEM Real Time Operations
53981POWER SYSTEM EVENTS16/06/2016 11:31:54 AM
Non-credible contingency event - Vic region - 16/06/16
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - Vic region - 16/06/16
At 1106 hrs the following plant tripped.
Loy Yang No. 1 and No. 3 500 kV Bus
Hazelwood - Loy Yang No. 2 500 kV Line
Loy Yang No. 1 500/220 kV Transformer
Loy Yang A1 generating unit
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 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 - 16/06/16
At 1106 hrs the following plant tripped.
Loy Yang No. 1 and No. 3 500 kV Bus
Hazelwood - Loy Yang No. 2 500 kV Line
Loy Yang No. 1 500/220 kV Transformer
Loy Yang A1 generating unit
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 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
53874POWER SYSTEM EVENTS11/06/2016 10:32:06 AM
Non-credible contingency event - NSW region - 11 June 2016
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - NSW region - 11 June 2016
At 0950 hrs the Wagga substation 132kV B bus, the No2 and the No3 330/132kV transformers tripped.
AEMO did not observe any reduction in electrical demand
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 - NSW region - 11 June 2016
At 0950 hrs the Wagga substation 132kV B bus, the No2 and the No3 330/132kV transformers tripped.
AEMO did not observe any reduction in electrical demand
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
53705POWER SYSTEM EVENTS08/06/2016 02:45:06 AM
Update - Non-Credible Contingency Event - Vic Region - 8 June 2016
AEMO ELECTRICITY MARKET NOTICE
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
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
53704POWER SYSTEM EVENTS08/06/2016 01:41:50 AM
Non-Credible Contingency Event - Vic Region - 8 June 2016
AEMO ELECTRICITY MARKET NOTICE
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 - 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
53677POWER SYSTEM EVENTS07/06/2016 04:39:07 PM
Non-Credible Contingency Event - Vic Region - Tues 7th Jun 2016
AEMO ELECTRICITY MARKET NOTICE
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
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
53566POWER SYSTEM EVENTS30/05/2016 02:38:40 PM
Cancellation - Non-credible contingency event - Victoria region - Monday, 30 May 2016
AEMO ELECTRICITY MARKET NOTICE
Cancellation Non-credible contingency event - Victoria region - Monday, 30 May 2016
Jeeralang No 2 220 kV Busbar tripped at 1339 hrs in the Victoria region.
Jeeralang No 2 220 kV Busbar returned to service at 1425 hrs.
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.
The following constraint sets have been revoked at 1430 hrs
V-JL_BUS 2 and CA_SPS_465E4858
Manager NEM Real Time Operations
Cancellation Non-credible contingency event - Victoria region - Monday, 30 May 2016
Jeeralang No 2 220 kV Busbar tripped at 1339 hrs in the Victoria region.
Jeeralang No 2 220 kV Busbar returned to service at 1425 hrs.
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.
The following constraint sets have been revoked at 1430 hrs
V-JL_BUS 2 and CA_SPS_465E4858
Manager NEM Real Time Operations