Market Notices

80963MARKET INTERVENTION09/12/2020 01:09:46 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 10/12/2020 0130 hrs to 11/12/2020 0400 hrs in Pre-dispatch published at 09/12/2020 1300 hrs are sufficient to maintain system strength in SA, however following a credible contingency event AEMO will not be able to return SA to a secure operating state within 30 minutes.

AEMO currently estimates that, in the absence of sufficient market response by 09/12/2020 1700 hrs, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to synchronise or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations
80962MARKET INTERVENTION09/12/2020 03:42:32 PM

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 08/12/2020

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 08/12/2020

Refer Market Notice 80940

The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 09/12/2020

Manager NEM Real Time Operations
80941MARKET INTERVENTION08/12/2020 07:03:23 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 combination of synchronous generating units currently expected to be synchronised in SA from 0130hrs 10/12/2020 in Pre-dispatch 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 0130hrs 10/12/2020 to maintain power system security in SA. Refer to current Transfer Limit Advice for SA system strength on AEMOs website.

If necessary, AEMO will estimate and publish the latest time at which AEMO would need to intervene after the 1230 hrs predispatch run on the 09/12/2020.

Manager NEM Real Time Operations
80940MARKET INTERVENTION08/12/2020 05:58:42 PM

Direction - SA Region - 08/12/2020

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA Region - 08/12/2020

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 08/12/2020.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
80937MARKET INTERVENTION08/12/2020 03:55:42 PM

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 07/12/2020

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 07/12/2020

Refer Market Notice 80903

The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 08/12/2020

Manager NEM Real Time Operations
80932MARKET INTERVENTION08/12/2020 02:19:46 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 0830 hrs to 1600 hrs 09/12/2020 in Pre-dispatch published at 1400 hrs 08/12/2020 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 08/12/2020, 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
80928MARKET INTERVENTION08/12/2020 03:54:56 AM

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 04/12/2020

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 04/12/2020

Refer Market Notice 80688

The AEMO Intervention Event and all associated directions are cancelled from 0400 hrs 08/12/2020

Manager NEM Real Time Operations
80903MARKET INTERVENTION07/12/2020 05:59:34 PM

Direction - SA Region - 07/12/2020

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA Region - 07/12/2020

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 07/12/2020.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
80879MARKET INTERVENTION07/12/2020 01:38:49 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 synchronous generating units expected to be synchronised in SA from 0900 hrs 08/12/2020 to 1600 hrs 08/12/2020 in Pre-dispatch published at 1330 hrs 07/12/2020 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 07/12/2020, 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
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