Market Notices

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Saturday, 3 August 2024

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

Unit: BW03
Duration: 03/08/2024 16:25 to 03/08/2024 16:35
Amount: 72 MW
Constraint: NC-N_BW03

Auto-generated on behalf of Manager NEM Real Time 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: TAS1

Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV

Cancellation time: 03/08/2024 10:04

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117540

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: TAS1

Lines: Norwood - Scottsdale 1 110kV and Norwood-Derby-Scottsdale 110kV

Duration: 03/08/2024 09:01 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Friday, 2 August 2024

AEMO has declared the following units comprising an Aggregate Dispatch Group as non-conforming under clause 3.8.23 of the National Electricity Rules:

Units: TB2BG1, TB2BL1
Aggregate Dispatch Group: TB2HYB_ADG1
Duration: 02/08/2024 12:10 to 02/08/2024 18:15
Amount: 14 MW
Constraint: NC-S_TB2HYB_ADG1

Auto-generated on behalf of Manager NEM Real Time Operations

The MTPASA result published on 6 August 2024 identifies no Low Reserve Conditions.

Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any AEMO intervention.

For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy

This notice supersedes Market Notice 117502 published on 30 July 2024.

Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.

For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at https://www.aemo.com.au/Electricity/National

Forecasting
AEMO

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - SA region 01/08/2024

Refer to Market Notice 117525

The AEMO Intervention Event and all associated directions are cancelled from 1430 hrs on 02/08/2024.



Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation: Direction issued to: AGL SA Generation Pty Limited - TORRB3 TORRENS ISLAN

Refer to Market Notice 117529

Direction is cancelled from: 1430 hrs 02/08/2024

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation: Direction issued to: Synergen Power Pty Limited - MINTARO MINTARO GAS

Refer to Market Notice 117526

Direction is cancelled from: 1230 hrs 02/08/2024

Manager NEM Real Time Operations

Change Number: CHG0091753

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Gas Supply Hub

Change Title: Pre production Gas Supply Hub (GSH) Environment Outage

Change Start Date & Time: 08/08/2024 09:00:00 AEST

Change End Date & Time: 09/08/2024 17:00:00 AEST

Outage Start Date & Time: 08/08/2024 09:00:00 AEST

Outage End Date & Time: 09/08/2024 14:00:00 AEST

Environment: Pre-Production

Participant Impact and Requirements: "The AEMO Pre-production Gas Supply Hub (GSH) environment will be refreshed (GSH databases) and system will be unavailable during the outage window.

Access to Gas Suuply Hub (GSH) Trayport interface, GSH Day Ahead auction (DAA) and Pipeline capacity trading API and GSH web portal interfaces will be unavailable.

Upon completion of the outage users will be required to log in to pre-prod Gas Supply Hub Tray-port application using their production credentials as Trayport passwords in Pre-Production environment will be replaced with their Production passwords."

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?d=pp_services_status for any planned/unplanned maintenance activities .