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Direction - SA region 24/01/2024
Direction - SA region 24/01/2024
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 1635 hrs on 24/01/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Update - Possible intervention to manage power system security in SA region
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 113695
The synchronous generating units currently expected to be synchronised in SA from 0900 hrs 25/01/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1630 hrs 24/01/2024, 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 SA Region
Possible intervention to manage power system security in SA Region
The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 26/01/2024 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
Update - Non-credible contingency event - QLD region - 23/01/2024
Update - Non-credible contingency event - QLD region - 23/01/2024
Refer AEMO Electricity Market Notice 113659
At 1122 hrs the H35 Strathmore No2 275 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
Nebo - Strathmore 878 275 kV line to remain out of service.
See Network Outage Scheduler (NOS) for further details.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Non-credible contingency event - QLD region - 23/01/2024
Non-credible contingency event - QLD region - 23/01/2024
At 0957 hrs the Strathmore No 2 275 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
The following constraint set(s) invoked
Q-NESTM
Q-X_NQ_275_FDR+BUS
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 19/01/2024
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 19/01/2024
Refer Market Notice 113483
The AEMO Intervention Event and all associated directions are cancelled from 0400 hrs 23/01/2024
Manager NEM Real Time Operations
[EventId:202401221925_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 22 January 2024 19:25
Issued by Australian Energy Market Operator Ltd at 1925 hrs on 22 January 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 22 January 2024.
Refer to market notice: 113632
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 1925 hrs on 22 January 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202401221825_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 22 January 2024 18:25
Issued by Australian Energy Market Operator Ltd at 1825 hrs on 22 January 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 22 January 2024.
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 1825 hrs on 22 January 2024.
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.
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction QLD region 22/01/2024
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction QLD region 22/01/2024
Refer Market Notice 113610
The AEMO Intervention Event and all associated directions are cancelled from 1915 hrs 22/01/2024
Manager NEM Real Time Operations