Market Notices

112206MARKET INTERVENTION12/12/2023 02:23:46 PM

Update - Possible intervention to manage power system security in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in SA region

Refer AEMO Electricity Market Notice 112204

The synchronous generating units currently expected to be synchronised in SA from 0730 hrs 13/12/2023 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1700 hrs 12/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations
112205RECLASSIFY CONTINGENCY12/12/2023 01:32:02 PM

Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: VIC1

Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV

Duration: 12/12/2023 13:31 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
112204MARKET INTERVENTION12/12/2023 12:54:12 PM

Possible intervention to manage power system security in SA Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA Region

The synchronous generating units currently expected to be synchronised in SA from 0730 hrs 13/12/2023 will be inadequate to maintain a secure operating state in SA.

AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations
112202RESERVE NOTICE12/12/2023 11:48:43 AM

STPASA - Update to the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 14/12/2023

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112198 has been updated at 1100 hrs 12/12/2023 to the following:

From 1500 hrs to 2000 hrs 14/12/2023.
The forecast capacity reserve requirement is 1426 MW.
The minimum capacity reserve available is 502 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.

AEMO Operations
112201RECALL GEN CAPACITY12/12/2023 10:59:40 AM

Request for Generator Recall Information for 14/12/2023 for QLD Region

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market Notice no. 112198. Additional generation in QLD could assist in alleviating the forecast LOR condition in NSW.

Please provide Generator Recall Information for the period 14/12/2023, by 1200 hrs on 13/12/2023 via the Generator Recall communication system, in accordance with clause 4.8.5A of the National Electricity Rules.

SO_OP_3719 Procedure for Submitting Generator Outage Recall Information is available at:
https://aemo.com.au/-/media/files/electricity/nem/security_and_reliability/power_system_ops/procedures/so_op_3719-procedure-for-submitting-recall-information-scheduled-generator-outages.pdf

Procedure on how to use Generator Recall in the EMMS Markets Portal is available at
http://www.aemo.com.au/-/media/Files/Electricity/NEM/IT-Systems-and-Change/2018/Guide-to-Generator-Recall-Plans.pdf

AEMO Operations
112200RECALL GEN CAPACITY12/12/2023 11:01:01 AM

Request for Generator Recall Information for 14/12/2023 for NSW Region

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market Notice no. 112198.

Please provide Generator Recall Information for the period 14/12/2023, by 1200 hrs on 13/12/2023 via the Generator Recall communication system, in accordance with clause 4.8.5A of the National Electricity Rules.

SO_OP_3719 Procedure for Submitting Generator Outage Recall Information is available at:
https://aemo.com.au/-/media/files/electricity/nem/security_and_reliability/power_system_ops/procedures/so_op_3719-procedure-for-submitting-recall-information-scheduled-generator-outages.pdf

Procedure on how to use Generator Recall in the EMMS Markets Portal is available at
http://www.aemo.com.au/-/media/Files/Electricity/NEM/IT-Systems-and-Change/2018/Guide-to-Generator-Recall-Plans.pdf

AEMO Operations
112199NON-CONFORMANCE12/12/2023 09:25:17 AM

NON-CONFORMANCE Region SA1 Tuesday, 12 December 2023

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Tuesday, 12 December 2023

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: NBHWF1
Duration: 12/12/2023 09:00 to 12/12/2023 09:25
Amount: 17 MW
Constraint: NC-S_NBHWF1

Auto-generated on behalf of Manager NEM Real Time Operations
112198RESERVE NOTICE12/12/2023 09:01:38 AM

STPASA - Update to the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 14/12/2023

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 112190 has been updated at 0800 hrs 12/12/2023 to the following:

From 1530 hrs to 1930 hrs 14/12/2023.
The forecast capacity reserve requirement is 1332 MW.
The minimum capacity reserve available is 689 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.

AEMO Operations

112196MARKET SYSTEMS12/12/2023 07:05:08 AM

CHG0082097 | Production | P3062 Manifestly Incorrect Inputs (MII)? Production Release

Change Number: CHG0082097
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Dispatch
Change Title: P3062 Manifestly Incorrect Inputs (MII) Production Release
Change Start Date & Time: 12/12/2023 08:00:00 AEST
Change End Date & Time: 13/12/2023 17:30:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: Under this change , AEMO will install an updated version of a key Dispatch application (NEMDE Solutionloader) used in Production for Dispatch, 5-Minute Pre-dispatch, Pre-dispatch, and 7-Day Pre-dispatch.

Changes include:
o Extension of Automated MII Procedures to include detection of FCAS MIIs using an FCAS requirement threshold.

No outages or delays expected. AEMO will advise once complete.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any
planned/unplanned maintenance activities .
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