Market Notices

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: QLD1

Lines: Collinsville North - Stoney Creek No.7306 132 kV and Collinsville North - Newlands No.7121 132 kV

Cancellation time: 25/11/2021 18:15

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 92705

Manager NEM Real Time Operations

Change Number: CHG0070907
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal

Service/Component: MSATS - Consumer Administration and Transfer Solution(CATS)
Change Title: MSATS Production Release

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

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: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 25/11/2021 16:52 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 91942

AEMO and ElectraNet have been working on moving to four synchronous condenser operation in South Australia. Due to current market and power system conditions AEMO is moving to four synchronous condenser operation for system normal conditions as of 1900hrs 25th November 2021.

Refer to the six generator combinations in Table 3 of the current limits advice (v39) here:
https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice

Further SA generator combinations will be published tomorrow.

SA operation factsheet:
https://www.aemo.com.au/-/media/files/electricity/nem/security_and_reliability/congestion-information/sa-operation-with-minimum-2-synchronous-generators-aemo-factsheet.pdf?la=en

For further details please contact ben.blake@aemo.com.au

Ben Blake
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: QLD1

Lines: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Cancellation time: 25/11/2021 16:14

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 92707

Auto-generated on behalf of Manager NEM Real Time Operations

Change Number: CHG0071396

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: EMMS - Intermittent Forecasting

Change Title: The Intermittent Generation web application in AEMO's Markets Portal is
being updated .

Change Start Date & Time: 30/11/2021 08:00:00 AEST

Change End Date & Time: 30/11/2021 17:30:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Environment: Pre-Production

Participant Impact and Requirements: Pre Production Markets Portal --> Internal users of Intermittent Generation web application may experience a short outage during the nominated change window for the deployment.

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/participantportalid=pp_services_status for any planned/unplanned maintenance activities.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: VIC1

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

Cancellation time: 25/11/2021 14:19

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 0

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Murraylink

There has been an unplanned outage of the Murraylink interconnector.

The following constraint set was invoked at 1330 hrs 25/11/2021

I-ML_ZERO

The constraint set contains the following interconnector on the left hand side.

V-S-MNSP1

Refer to AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations

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: QLD1

Lines: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV

Duration: 25/11/2021 13:12 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations