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

Cancellation time: 03/02/2021 15:14

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 82559

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 31/01/2021

Refer Market Notice 82493

The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 03/02/2021

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

Duration: 03/02/2021 14:11 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of 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: 03/02/2021 14:11 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

Change Number: CHG0062863

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

Change Title: Planned System Maintenance - Electricity MMS Production

Change Start Date & Time: 10/02/2021 09:30:00 AEST

Change End Date & Time: 10/02/2021 17:30:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

Maintenance is performed on the EMMS Production environment.

Environment: Production

Participant Impact and Requirements:

The maintenance activity is not expected to have any impact on the production environment, and therefore if any issue is identified after the maintenance activity it should be reported to AEMO Support Hub.

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

Change Number: CHG0062826

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: MSATS - Business to Business data exchange

Change Title: Planned Software Change - MSATS B2B e-Hub - SMP-124.1

Change Start Date & Time: 03/02/2021 17:30:00 AEST

Change End Date & Time: 03/02/2021 19:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

Planned Software Change - MSATS B2B e-Hub - SMP-124.1

Environment: Production

Participant Impact and Requirements:

No impact is expected but participants are advised to be aware of this enhancement.

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

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: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV and Goonyella - Newlands No. 7155 132 kV

Cancellation time: 03/02/2021 09:09

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 82554

Auto-generated on behalf of 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: Goonyella - Nth Goonyella T- Stoney Creek 7122 132 kV and Goonyella - Newlands No. 7155 132 kV

Duration: 03/02/2021 08:07 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Further to MN 80127 and 82217, on 3rd February at 1000hrs AEMO will reduce the load relief used to determine FCAS requirements from 0.6% to 0.5% for the Tasmanian region. This will increase the amount of contingency FCAS enabled by AEMO in the Tasmanian region.

This change is a part of AEMO's review of frequency in the NEM. The Tasmanian load relief has been reduced by 0.1% on a fortnightly basis from the current 1.0%. From 0.5% it will be reduced by 0.1% every four weeks. Details were provided to market participants in an industry teleconference on 4th December 2020. For more information refer to: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/ancillary-services/load-relief

There will be no change at this stage to the Mainland load relief.

The next change is planned for 3rd March 2021.

Ben Blake
AEMO Operations