Market Notices

82899MARKET INTERVENTION19/02/2021 06:39:49 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 combination of synchronous generating units currently expected to be synchronised in SA from 0100 hrs 21/02/2021 in Pre-dispatch published at 1830hrs 19/02/2021 will not provide sufficient system strength in SA to maintain the power system in a secure operating state.

In the absence of sufficient market response AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised from 0100 hrs 21/02/2021 to maintain power system security in SA. Refer to current Transfer Limit Advice for SA system strength on the AEMO website.

If necessary, AEMO will estimate and publish the latest time at which AEMO would need to intervene after the 1400 hrs Pre-dispatch run on the 20/02/2021

Manager NEM Real Time Operations
     
82895MARKET INTERVENTION19/02/2021 05:30:16 PM

Direction - SA region 19/02/2021

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 19/02/2021

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 1735 hrs on 19/02/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
     
82894MARKET INTERVENTION19/02/2021 03:23:56 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 to AEMO Market Notice 82892.

The synchronous generating units expected to be synchronised in SA from 0830 hrs 20/02/2021 to 1600 hrs 20/02/2021 in Pre-dispatch published at 1500 hrs 19/02/2021 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.

AEMO currently estimates that, in the absence of sufficient market response by 1800 hrs 19/02/2021, 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 Operations
     
82892MARKET INTERVENTION19/02/2021 01:33:52 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 combination of synchronous generating units currently expected to be synchronised in SA from 0830 hrs 20/02/2021 in Pre-dispatch published at 1300hrs 19/02/2021 will not provide sufficient system strength in SA to maintain the power system in a secure operating state.

In the absence of sufficient market response AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised from 0830 hrs 20/02/2021 to maintain power system security in SA. Refer to current Transfer Limit Advice for SA system strength on the AEMO website.
If necessary, AEMO will estimate and publish the latest time at which AEMO would need to intervene after the 1400 hrs Pre-dispatch run on the 19/02/2021

Manager NEM Real Time Operations
     
82886MARKET INTERVENTION19/02/2021 10:33:16 AM

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 17/02/2021

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 17/02/2021

Refer Market Notice 82879

The AEMO Intervention Event and all associated directions are cancelled from 1030 hrs 19/02/2021

Manager NEM Real Time Operations
     
82879MARKET INTERVENTION17/02/2021 08:59:56 PM

Direction - SA region 17/02/2021

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 17/02/2021

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 2105 hrs on 17/02/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
     
82878MARKET INTERVENTION17/02/2021 03:53:52 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 expected to be synchronised in SA from 2300 hrs 18/02/2021 to 0400 hrs 19/02/2021 in Pre-dispatch published at 1530 hrs 17/02/2021 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.

AEMO currently estimates that, in the absence of sufficient market response by 2100 hrs 17/02/2021, 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 Operations
     
82858MARKET INTERVENTION15/02/2021 05:32:16 PM

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 11/02/2021

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 11/02/2021

Refer Market Notice 82827

The AEMO Intervention Event and all associated directions are cancelled from 1730 hrs 15/02/2021

Manager NEM Real Time Operations
     
82827MARKET INTERVENTION11/02/2021 06:00:53 PM

Direction - SA Region - 11/02/2021

AEMO ELECTRICITY MARKET NOTICE.

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 11/02/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
     
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