Market Notices

112110MARKET INTERVENTION08/12/2023 03:32:37 PM

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

AEMO ELECTRICITY MARKET NOTICE

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

Refer AEMO Electricity Market Notice 112084

The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 09/12/2023 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1630 hrs 08/12/2023, 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
112094SETTLEMENTS RESIDUE08/12/2023 02:51:32 PM

[EventId:202312081450_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 08 December 2023 14:50

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1450 hrs on 8 December 2023

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1450 hrs on 8 December 2023.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
112084MARKET INTERVENTION08/12/2023 01:06:27 PM

Possible intervention to manage power system security in SA Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA Region

The synchronous generating units currently expected to be synchronised in SA from 0930 hrs 09/12/2023 will be inadequate to maintain a secure operating state in SA.

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
112075SETTLEMENTS RESIDUE08/12/2023 11:20:28 AM

[EventId:202312081120_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 08 December 2023 11:20

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1120 hrs on 8 December 2023

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.

Refer to market notice: 112063

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.

The negative residue constraint NRM_NSW1_VIC1 ceased operating at 1120 hrs on 8 December 2023.

This is an AEMO autogenerated Market Notice.
112065GENERAL NOTICE08/12/2023 10:52:48 AM

NEM Local Temperature Alerts for NSW, SA, VIC from 08 Dec 2023 to 12 Dec 2023

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

NSW
Yass (39+ Deg C): 9th Dec

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
112063SETTLEMENTS RESIDUE08/12/2023 10:16:32 AM

[EventId:202312081015_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 08 December 2023 10:15

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1015 hrs on 8 December 2023

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 8 December 2023.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to VIC directional interconnector.

The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 1015 hrs on 8 December 2023.

This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
112039GENERAL NOTICE07/12/2023 11:07:29 AM

NEM Local Temperature Alerts for NSW, QLD, SA, VIC from 07 Dec 2023 to 11 Dec 2023

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

NSW
Sydney Observatory Hill (39+ Deg C): 9th Dec

SA
Clare High School (39+ Deg C): 8th Dec

VIC
Mildura Ap (39+ Deg C): 11th Dec

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
112036MARKET INTERVENTION07/12/2023 08:07:36 AM

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 06/12/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 06/12/2023

Refer Market Notice 112031

The AEMO Intervention Event and all associated directions are cancelled from 0805 hrs 07/12/2023

Manager NEM Real Time Operations
112031MARKET INTERVENTION06/12/2023 04:00:06 PM

Direction - SA region 06/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 06/12/2023

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 trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1605 hrs on 06/12/2023.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
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