Market Notices

88309NON-CONFORMANCE17/07/2021 01:15:17 PM

NON-CONFORMANCE Region QLD1 Saturday, 17 July 2021

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Saturday, 17 July 2021

AEMO declared a schedule generating unit non-conforming

Unit: OAKEY1SF
Duration: 17/07/2021 11:05 to 17/07/2021 13:15
Amount: -18 MW
Constraint: NC-Q_OAKEY1SF

Auto-generated on behalf of Manager NEM Real Time Operations
88308GENERAL NOTICE17/07/2021 12:25:11 PM

Cancellation : Non-credible contingency event more likely to occur due to existence of abnormal condition/s - SA region.

AEMO ELECTRICITY MARKET NOTICE.

Abnormal conditions advised in AEMO Electricity Market Notice 88263 have ceased to impact the likelihood of a non-credible event occurring as at 1225 hrs 17/07/2021

Manager NEM Real Time Operations
88307RECLASSIFY CONTINGENCY17/07/2021 12:26:48 PM

Cancellation of the reclassification of a Non-Credible Contingency Cancellation of the reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly, its classification has reverted to a non-credible contingency event.

Region: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Cancellation time: 1215 hrs 17/07/2021

Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 88218

Manager NEM Real Time Operations
88306RECLASSIFY CONTINGENCY17/07/2021 12:27:31 PM

Cancellation of the reclassification of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning.

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly, its classification has reverted to a non-credible contingency event.

Region: SA

Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines

Cancellation time: 1215 hrs 17/07/2021

Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 88217

Manager NEM Real Time Operations
88305RESERVE NOTICE17/07/2021 08:58:35 AM

STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region 19/07/2021

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 conditions in the NSW region advised in AEMO Electricity Market Notice No. 88283 have been updated at 0800 hrs 18/07/2021 to the following:

1. From 0730 hrs 19/07/2021 to 0830 hrs 19/07/2021.
The forecast capacity reserve requirement is 1446 MW.
The minimum capacity reserve available is 1389 MW.

2. From 1700 hrs 19/07/2021 to 2030 hrs 19/07/2021.
The forecast capacity reserve requirement is 1552 MW.
The minimum capacity reserve available is 561 MW.

AEMO is seeking a market response.

AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.

Manager NEM Real Time Operations
88304RESERVE NOTICE17/07/2021 08:53:10 AM

STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region 19/07/2021- 21/07/2021

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 conditions in the QLD region advised in AEMO Electricity Market Notice No. 88278 have been updated at 0800 hrs 17/07/2021 to the following:

1. From 1730 hrs 19/07/2021 to 1930 hrs 19/07/2021.
The forecast capacity reserve requirement is 720 MW.
The minimum capacity reserve available is 438 MW.

2. From 1730 hrs 20/07/2021 to 2000 hrs 20/07/2021.
The forecast capacity reserve requirement is 720 MW.
The minimum capacity reserve available is 443 MW.

AEMO is seeking a market response.

AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.

Manager NEM Real Time Operations
88303POWER SYSTEM EVENTS17/07/2021 12:00:27 AM

Update - Non-credible contingency event - SA region - 16/07/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 16/07/2021

The cause of the non-credible event at 2149 hrs has been identified as lightning.

The Cherry Gardens - Tailem Bend 275 kV transmission line successfully single pole auto reclosed

The Cherry Gardens - Mount Barker South 275 kV transmission line successfully single pole auto reclosed.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
88302POWER SYSTEM EVENTS16/07/2021 11:21:36 PM

Non-credible contingency event - SA region - 16/07/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - 16/07/2021

At 2149 hrs the following lines tripped in the SA region

Cherry Gardens - Tailem Bend 275 kV line

Cherry Gardens - Mount Barker South 275 kV line

Cherry Gardens - Mt Barker 132 kV line

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 has been identified.


Manager NEM Real Time Operations
88301NON-CONFORMANCE16/07/2021 10:55:10 PM

NON-CONFORMANCE Region NSW1 Friday, 16 July 2021

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Friday, 16 July 2021

AEMO declared a schedule generating unit non-conforming

Unit: VP6
Duration: 16/07/2021 22:45 to 16/07/2021 22:55
Amount: -12 MW
Constraint: NC-N_VP6

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