Market Notices

90279RESERVE NOTICE08/09/2021 03:04:34 PM

STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 14/09/2021

AEMO ELECTRICITY MARKET NOTICE

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

From 0730 hrs to 0830 hrs 14/09/2021.
The forecast capacity reserve requirement is 741 MW.
The minimum capacity reserve available is 710 MW.

AEMO Operations
90278MARKET SYSTEMS08/09/2021 02:55:49 PM

CHG0069694 : Planned System Maintenance activity

Market Notice

Change Number: CHG0069694

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: EMS NEM - Network Outage Scheduler (NOS)

Change Title: Planned System Maintenance activity

Change Start Date & Time: 15/09/2021 11:00:00 AEST

Change End Date & Time: 15/09/2021 11:40:00 AEST

Outage Start Date & Time: 15/09/2021 11:10:00 AEST

Outage End Date & Time: 15/09/2021 11:20:00 AEST

Change Description:

Planned System Maintenance activity.

Environment: Production

Participant Impact and Requirements:

Network Outage Schedular (NOS) will be out of service during the maintenance activity. Users who are already logged in to NOS during the outage will not be able to use NOS and will require log back in once the outage is completed.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
90272MARKET SYSTEMS08/09/2021 02:46:27 PM

CHG0069699 : Software Upgrade of MarketNet F5 load-balancers in Norwest

Market Notice

Change Number: CHG0069699

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Local Area Network

Change Title: Software Upgrade of MarketNet F5 load-balancers in Norwest

Change Start Date & Time: 15/09/2021 06:00:00 AEST

Change End Date & Time: 15/09/2021 18:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

Planned maintenance affecting the AEMO Market Network.

Environment: Production

Participant Impact and Requirements:

Planned maintenance will be conducted on the 8th of September 2021, between 06:00AM and 06:00PM AEST on the core network infrastructure within the AEMO Market Network in Sydney.

No outage or impact is expected, however AEMO recommends that all market participants with site to site VPN connections currently connected via Sydney, to switch these connections to the Brisbane site as a precaution.

Participants connecting via IPWAN and/or SSL VPN will be automatically connected to the Brisbane site and do not need to take any action.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
90271MARKET INTERVENTION08/09/2021 02:45:23 PM

Cancellation - Possible intervention to manage power system security in South Australia (SA) region

AEMO ELECTRICITY MARKET NOTICE

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

Refer Market Notice 90269

AEMO no longer foresees a possible requirement for intervention to manage power system security in SA region. The advice of possible intervention is cancelled from 1430 hrs 08/09/2021

Manager NEM Real Time Operations
90270NON-CONFORMANCE08/09/2021 09:10:11 AM

NON-CONFORMANCE Region NSW1 Wednesday, 8 September 2021

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Wednesday, 8 September 2021

AEMO declared a schedule generating unit non-conforming

Unit: DARLSF1
Duration: 08/09/2021 08:25 to 08/09/2021 09:10
Amount: 49 MW
Constraint: NC-N_DARLSF1

Auto-generated on behalf of Manager NEM Real Time Operations
90269MARKET INTERVENTION07/09/2021 11:11:23 PM

Possible intervention to manage power system security in South Australia (SA) Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in South Australia (SA) Region

The synchronous generating units currently expected to be synchronised in SA from 2100 hrs 08/09/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.

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 Operation
90267GENERAL NOTICE07/09/2021 05:16:44 PM

Outage Cancelled: Planned outage of Heywood No.1 500 kV busbar and Heywood - Tarrone 500 kV line in the Victoria region on 08 September 2021

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Electricity Market notice 90260.

The Heywood No.1 500 kV busbar and Heywood-Tarrone 500 kV line in Victoria (VIC) Region were planned to be out of serviice on 08 September 2021. This outage has been cancelled.

All constraint sets associated with this outage have been revoked.

There is no change to the planned outage on 10 September 2021.

AEMO Operations.
90265MARKET INTERVENTION07/09/2021 05:54:37 PM

Direction - SA Region - 07/09/2021

Direction - SA Region - 07/09/2021

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 1805 hrs on 07/09/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
90263MARKET INTERVENTION07/09/2021 03:44:43 PM

Update - Possible intervention to manage power system security in South Australia (SA) Region

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in South Australia (SA) Region

Refer AEMO Electricity Market Notice 90262

The synchronous generating units currently expected to be synchronised in SA from 0900 hrs 08/09/2021 to 1730 hrs 08/09/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.

AEMO estimates that, in the absence of sufficient market response by 1800 hrs 07/09/2021, 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 Operation
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