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112811MARKET INTERVENTION27/12/2023 01:08:57 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 0700 hrs 28/12/2023 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 Operations
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 28/12/2023 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 Operations
112810SETTLEMENTS RESIDUE27/12/2023 12:46:20 PM
[EventId:202312271245_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 27 December 2023 12:45
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1245 hrs on 27 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 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 1245 hrs on 27 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.
Issued by Australian Energy Market Operator Ltd at 1245 hrs on 27 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 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 1245 hrs on 27 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.
112805GENERAL NOTICE27/12/2023 10:36:51 AM
NEM Local Temperature Alerts for QLD from 27 Dec 2023 to 31 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.
QLD
Dalby Ap (37+ Deg C): 29th 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
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.
QLD
Dalby Ap (37+ Deg C): 29th 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
112803GENERAL NOTICE27/12/2023 10:08:01 AM
Update - Lightning vulnerable lines in QLD region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 112794
At 2345 hrs 26/12/2023, the Clare South - Strathmore No.7208 and Strathmore - Clare South tee King Creek No.7128 132 kV Lines tripped.
The cause of the trip was identified as due to Lightning.
In accordance with SO_OP_3715, AEMO now considers the Clare South - Strathmore No.7208 and Strathmore - Clare South tee King Creek No.7128 132 kV Lines to be vulnerable with a category of "Probable" due to Lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 112794
At 2345 hrs 26/12/2023, the Clare South - Strathmore No.7208 and Strathmore - Clare South tee King Creek No.7128 132 kV Lines tripped.
The cause of the trip was identified as due to Lightning.
In accordance with SO_OP_3715, AEMO now considers the Clare South - Strathmore No.7208 and Strathmore - Clare South tee King Creek No.7128 132 kV Lines to be vulnerable with a category of "Probable" due to Lightning.
Manager NEM Real Time Operations
112779MARKET INTERVENTION26/12/2023 04:14:15 PM
Direction - SA region 26/12/2023
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 26/12/2023
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 26/12/2023.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 26/12/2023
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 26/12/2023.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
112778MARKET INTERVENTION26/12/2023 10:57:28 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/12/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/12/2023
Refer Market Notice 112492
The AEMO Intervention Event and all associated directions are cancelled from 2330 hrs 26/12/2023
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/12/2023
Refer Market Notice 112492
The AEMO Intervention Event and all associated directions are cancelled from 2330 hrs 26/12/2023
Manager NEM Real Time Operations
112721MARKET INTERVENTION25/12/2023 02:49:28 PM
Update - Direction - SA Region - 18/12/2023
AEMO ELECTRICITY MARKET NOTICE
Update - Direction - SA Region - 18/12/2023
Refer Market Notice 112492
The AEMO intervention event that commenced from interval ending 1635 hrs on 18/12/2023 is continuing.
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.
Manager NEM Real Time Operations
Update - Direction - SA Region - 18/12/2023
Refer Market Notice 112492
The AEMO intervention event that commenced from interval ending 1635 hrs on 18/12/2023 is continuing.
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.
Manager NEM Real Time Operations
112670MARKET INTERVENTION24/12/2023 04:27:52 PM
Update - Direction - SA Region - 18/12/2023
AEMO ELECTRICITY MARKET NOTICE
Update - Direction - SA Region - 18/12/2023
Refer Market Notice 112492
The AEMO intervention event that commenced from interval ending 1635 hrs on 18/12/2023 is continuing.
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.
Manager NEM Real Time Operations
Update - Direction - SA Region - 18/12/2023
Refer Market Notice 112492
The AEMO intervention event that commenced from interval ending 1635 hrs on 18/12/2023 is continuing.
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.
Manager NEM Real Time Operations
112662SETTLEMENTS RESIDUE24/12/2023 01:00:19 PM
[EventId:202312241300_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 24 December 2023 13:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1300 hrs on 24 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 24 December 2023.
Refer to market notice: 112657
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 1300 hrs on 24 December 2023.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1300 hrs on 24 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 24 December 2023.
Refer to market notice: 112657
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 1300 hrs on 24 December 2023.
This is an AEMO autogenerated Market Notice.