Market Notices

87216POWER SYSTEM EVENTS15/06/2021 02:16:46 PM

Update - Non-credible contingency event - QLD region - 15/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - QLD region - 15/06/2021

Refer AEMO ELECTRICITY MARKET NOTICE MN 87197

At 1400 hrs 15/06/2021 the Darling Downs Power Station GT1, GT2 and GT3 were made available for 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
87197POWER SYSTEM EVENTS15/06/2021 10:08:13 AM

Non-credible contingency event - QLD region - 15/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 15/06/2021

At 0947 hrs 15/06/2021, Darling Downs Power Station GT1, GT2 and GT3 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
87194POWER SYSTEM EVENTS15/06/2021 09:44:59 AM

Non-credible contingency event - QLD region - 15/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 15/06/2021

At 0918 hrs the H67 Calliope River No 1 132kV 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 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
86438POWER SYSTEM EVENTS02/06/2021 03:56:25 PM

Update - Non-credible contingency event - VIC region - 02/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - VIC region - 02/06/2021

Refer AEMO Electricity Market Notice 86436

At 1543 hrs, at Heywood the South East 1 line M1 transformer 275kV circuit breaker 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
86436POWER SYSTEM EVENTS02/06/2021 02:10:21 PM

Non-credible contingency event - VIC region - 02/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - VIC region - 02/06/2021

At 1342 hrs, at Heywood the South East 1 line M1 transformer 275kV circuit breaker opened. This offloads the Heywood M1 500/275kV transformer.

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
86402POWER SYSTEM EVENTS01/06/2021 06:52:59 PM

Update - Non-credible contingency event - QLD region - 01/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - QLD region - 01/06/2021

Refer AEMO ELECTRICITY MARKET NOTICE MN 86383

At 1845 hrs the Darling Downs Power Station 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
86383POWER SYSTEM EVENTS01/06/2021 05:28:31 PM

Non-credible contingency event - QLD region - 01/06/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 01/06/2021

At 1713 hrs 01/06/2021, all generating units at Darling Downs Power Station 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
86378POWER SYSTEM EVENTS01/06/2021 12:09:00 PM

Update - Non-credible contingency event - Vic region - 14/05/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - Vic region - 14/05/2021

Refer AEMO Electricity Market Notice 85442

At 1159 hrs 01/06/2021 the Newport No 1 220kV 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
86153POWER SYSTEM EVENTS28/05/2021 05:48:24 PM

Update - Non-credible contingency event - Qld region - 28/05/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - Qld region - 28/05/2021

Refer AEMO ELECTRICITY MARKET NOTICE MN 86144

At 1722 hrs the Claire South - Townsville South 7131 132 kV Line 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
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