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105653POWER SYSTEM EVENTS06/02/2023 09:39:29 AM
Non-credible contingency event - Qld Region - 03/02/2023
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld Region - 03/02/2023
At 1722 hrs 03/02/2023 the Kareeya Power Station Unit 1, Unit 2 and Unit 4 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 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 - Qld Region - 03/02/2023
At 1722 hrs 03/02/2023 the Kareeya Power Station Unit 1, Unit 2 and Unit 4 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 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
104357POWER SYSTEM EVENTS11/12/2022 01:34:36 PM
Update - Non-credible contingency event - Vic region - 11/12/2022
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - Vic region - 11/12/2022
Refer AEMO ELECTRICITY MARKET NOTICE 104353
At 1157 hrs the Kerang - Wemen - Red Cliffs 220 kV Line and the Kiamal Solar Farm STX transformer (Kiamal synchronous condenser) tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of bulk electrical load (27 MW)
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Update - Non-credible contingency event - Vic region - 11/12/2022
Refer AEMO ELECTRICITY MARKET NOTICE 104353
At 1157 hrs the Kerang - Wemen - Red Cliffs 220 kV Line and the Kiamal Solar Farm STX transformer (Kiamal synchronous condenser) tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of bulk electrical load (27 MW)
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
104353POWER SYSTEM EVENTS11/12/2022 01:11:07 PM
Non-credible contingency event - Vic region - 11/12/2022
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Vic region - 11/12/2022
At 1157 hrs the Kerang - Wemen - Red Cliffs 220 kV Line and the Kiamal Solar Farm STX transformer (Kiamal synchronous condenser) tripped.
AEMO did not instruct load shedding.
AEMO is still waiting to be 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 - 11/12/2022
At 1157 hrs the Kerang - Wemen - Red Cliffs 220 kV Line and the Kiamal Solar Farm STX transformer (Kiamal synchronous condenser) tripped.
AEMO did not instruct load shedding.
AEMO is still waiting to be 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
103964ADMINISTERED PRICE CAP26/11/2022 03:55:00 AM
[EventId:196] AP ENDED for market ancillary services in SA1 at 26 November 2022 03:55
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 25 November 2022
ADMINISTERED PRICE PERIOD ENDS in SA1 region.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO is notifying market participants that the administered price period declared for the SA1 region in market notice 103934 will end at 0400 hrs on 26 November 2022.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 25 November 2022
ADMINISTERED PRICE PERIOD ENDS in SA1 region.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO is notifying market participants that the administered price period declared for the SA1 region in market notice 103934 will end at 0400 hrs on 26 November 2022.
This is an AEMO autogenerated Market Notice.
103961POWER SYSTEM EVENTS25/11/2022 08:32:50 PM
Update - Vulnerable lines in Qld region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in Qld region
Refer to AEMO Electricity Market Notice 103958 and 103959
At 1913 hrs Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV Lines tripped and auto-reclosed.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in Qld region
Refer to AEMO Electricity Market Notice 103958 and 103959
At 1913 hrs Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV Lines tripped and auto-reclosed.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
103958POWER SYSTEM EVENTS25/11/2022 07:40:37 PM
Non-credible contingency event - Qld region - 25/11/2022
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 25/11/2022
At 1913 hrs the Chalumbin - Turkinje 7165 and 7166 132 kV Lines tripped and auto-reclosed.
AEMO did not instruct load shedding.
Approximately 75 MW of load was interrupted during the auto-reclose time.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - Qld region - 25/11/2022
At 1913 hrs the Chalumbin - Turkinje 7165 and 7166 132 kV Lines tripped and auto-reclosed.
AEMO did not instruct load shedding.
Approximately 75 MW of load was interrupted during the auto-reclose time.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
103934ADMINISTERED PRICE CAP25/11/2022 03:55:10 AM
[EventId:196] AP STARTED for market ancillary services in SA1 at 25 November 2022 0355
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 25 November 2022
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower 60 Sec, Raise Reg services prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,398,100.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 0405 on 25 November 2022 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA1 region.
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 0355 hrs on 25 November 2022
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower 60 Sec, Raise Reg services prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,398,100.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 0405 on 25 November 2022 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA1 region.
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.
103933ADMINISTERED PRICE CAP25/11/2022 03:55:00 AM
[EventId:195] AP ENDED for market ancillary services in SA1 at 25 November 2022 03:55
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 24 November 2022
ADMINISTERED PRICE PERIOD ENDS in SA1 region.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO is notifying market participants that the administered price period declared for the SA1 region in market notice 103908 will end at 0400 hrs on 25 November 2022.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 24 November 2022
ADMINISTERED PRICE PERIOD ENDS in SA1 region.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO is notifying market participants that the administered price period declared for the SA1 region in market notice 103908 will end at 0400 hrs on 25 November 2022.
This is an AEMO autogenerated Market Notice.
103908ADMINISTERED PRICE CAP24/11/2022 03:55:10 AM
[EventId:195] AP STARTED for market ancillary services in SA1 at 24 November 2022 0355
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 24 November 2022
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower 60 Sec, Raise 60 Sec, Lower Reg, Raise Reg services prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,398,100.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 0405 on 24 November 2022 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA1 region.
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 0355 hrs on 24 November 2022
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower 60 Sec, Raise 60 Sec, Lower Reg, Raise Reg services prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,398,100.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 0405 on 24 November 2022 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA1 region.
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.