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PDPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 23/09/2024
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 1830 hrs 23/09/2024 to 2030 hrs 23/09/2024.
The forecast capacity reserve requirement is 350 MW.
The minimum capacity reserve available is 260 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 24/09/2024
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 118361 is cancelled at 0300 hrs 22/09/2024.
No LOR2 condition is currently forecast in the STPASA period.
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 24/09/2024
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
[1.] From 1430 hrs 24/09/2024 to 1600 hrs 24/09/2024.
The forecast capacity reserve requirement is 516 MW.
The minimum capacity reserve available is 462 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in TAS region
Update - Lightning vulnerable lines in TAS region
Refer to AEMO Electricity Market Notice 118320 ,118321, 118322
At 1340 hrs 19/09/2024 the Gordon - Chapel St No 1 220 kV line and the Gordon - Chapel St No 2 220 kV line tripped.
The cause of the trip was identified as due to Lightning.
In accordance with SO_OP_3715, AEMO now considers the Gordon - Chapel St No 1 220 kV line and the Gordon - Chapel St No 2 220 kV line to be vulnerable with a category of Vulnerability due to Lightning.
Manager NEM Real Time Operations
Planned outage of Tailem Bend - South East 275 kV transmission line in the South Australia region beginning on 20/09/2024
The Tailem Bend - South East No 1 275 kV line in the South Australian (SA) region is planned to be out of service from 2100 hrs on 20/09/2024 to 0530 hrs on 21/09/2024.
A credible contingency event during this planned outage could cause synchronous separation of the SA region from the rest of the NEM.
During this planned outage:
- Power transfer will be restricted across the VIC - SA interconnector (Heywood interconnector); and
- Post contingent FCAS will be sourced within SA following Separation event.
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 17/09/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 118276 is cancelled at 1125 hrs 15/09/2024.
No LOR2 condition is currently forecast in the STPASA period.
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 17 Sep 2024
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following period[s]:
[1.] From 1800 hrs 17/09/2024 to 1930 hrs 17/09/2024.
The forecast capacity reserve requirement is 1228 MW.
The minimum capacity reserve available is 1095 MW.
AEMO is seeking a market response.
Manager NEM Real Time Operations
[EventId:202409121655_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 12 September 2024 16:55
Issued by Australian Energy Market Operator Ltd at 1655 hrs on 12 September 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 12 September 2024.
Refer to market notice: 118256
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 1655 hrs on 12 September 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202409121505_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 12 September 2024 15:05
Issued by Australian Energy Market Operator Ltd at 1505 hrs on 12 September 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 12 September 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 1505 hrs on 12 September 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.