Market Notices

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Wednesday, 14 July 2021

AEMO declared a schedule generating unit non-conforming

Unit: VP6
Duration: 14/07/2021 06:05 to 14/07/2021 06:15
Amount: -33 MW
Constraint: NC-N_VP6

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following period:

From 0800 hrs 14/07/2021 to 0900 hrs 14/07/2021
The forecast capacity reserve requirement is 1400 MW.
The minimum capacity reserve available is 1289 MW.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation - Reclassification of a non-credible contingency event as a credible contingency event.

AEMO considers the single end trip of the following circuit to now be unlikely. AEMO has cancelled this reclassification as a credible contingency event.

Region: NSW

Line: Tamworth to Muswellbrook 88 330 kV line CB at the Tamworth end only.

Cancelled: 2030 hrs 13/07/2021

Constraint set(s) invoked: Nil

Refer AEMO Electricity Market Notices 88125 and 88126

Manager NEM Real Time Operations

Change Number: CHG0065090

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Gas Bulletin Board(GBB)

Change Title: Upgrade the market portal and GasBB submission web application

Change Start Date & Time: 14/07/2021 08:00:00 AEST

Change End Date & Time: 14/07/2021 13:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

Minor change to Market Portal set participant behaviour in production.

Environment: Production

Participant Impact and Requirements:

We will upgrade the Market Portal set participant page to include gas companies along with electricity participants. (This change does not include Gas Hub participants.)
This is likely to only be seen by users accessing the Gas BB submission pages, who once logged in, will need to set participant to the gas company they are submitting for (and are associated with).
We are not expecting any down time, or the need to login immediately after the change.

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.

AEMO considers the single end trip of the following circuits to now be more likely and reasonably possible. AEMO has reclassified it as a credible contingency event.

Region: NSW

Lines: The 88 Muswellbrook to Tamworth 330 kV line CB at the Tamworth end only.

Duration: 1642 hrs 13/07/2021 until further notice

Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 13/07/2021

At 1642 hrs the 88 Muswellbrook to Tamworth 330 kV line opened at the Tamworth end only.

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 event is not known at this stage.

At 1644 hrs the 88 Muswellbrook to Tamworth 330 kV line was returned to service.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 13/07/2021

In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

The direction was necessary to maintain the power system in a secure operating state.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.

The issue of the direction commences an AEMO intervention event. AEMO declares all dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1600 hrs on 13/07/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations

Change Number: CHG0065258

Notification issued to: Market Notice

Notification Type: Initial / in Progress

Change Type: Normal

Service/ Component: Electricity Market Management System

Change Title: 5MS Market Trials urgent refresh activities - Outage of Electricity Market Management System (EMMS) and Gas Supply Hub (GSH) for Pre-Production refresh activities.

Change Start Date & Time: 13/07/2021 09:00:00 AEST

Change End Date & Time: 21/07/2021 18:00:00 AEST

Outage Start Date & Time: 13/07/2021 09:00:00 AEST

Outage End Date & Time: 16/07/2021 18:00:00 AEST

Change Description:

The Pre-Production EMMS environment will be refreshed with Production data and recovered up to 4-July-2021 06:00 PM (AEST). This activity is supporting the 5MS Market Trials planned to commence on 19-July-2021

Environment: Pre-Production

Participant Impact and Requirements:

The Electricity Market Management System (EMMS) and Gas Supply Hub (GSH) Pre-Production environment will be unavailable during the outage window while this work is being performed.

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

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 13 July 2021

PRICES ARE NOW CONFIRMED for dispatch interval 13-Jul-2021 14:05.

In accordance with Market Notice 88107 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.