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Release of QNI limit from NSW to Qld - 29th April 2025
Refer to market notice 124749.
AEMO, Transgrid, Powerlink have reviewed the test results following the QNI minor testing on 16th February 2025. The next hold point can now be released.
The hold point of 950 MW from NSW to Qld will be implemented as of 1000 hrs 29th April 2025.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
Release of PEC-1 and combined V-SA limits - 11 April 2025
Refer to market notice 123956
AEMO, Transgrid and Electranet have reviewed the test results following the PEC Stage 1 testing on 31st January 2025. Hold points 4 and 5 can now be released.
The following limits will be released as of 1000hrs 11th April 2025:
- PEC-1 - 150 MW (both directions)
- Heywood + PEC1 - 750 MW from Vic to SA and 700 MW from SA to Vic
- The existing Heywood limits of 600 and 550 MW are not being changed.
With the release of these limits AEMO will be looking for testing opportunities for increases to Heywood as per the test plan: https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.
Ben Blake
AEMO Operations
Update - Vulnerable lines in Qld region
Update - Lightning vulnerable lines in Qld region
Refer to AEMO Electricity Market Notice 126262 and 126271
At 0152 hrs 04/04/2025 the the Ross - Townsville South No 7156 and 7249 132kV lines tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the the Ross - Townsville South No 7156 and 7249 132kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Update to Victorian system normal Kerang voltage stability limit
AEMO has completed a review of a system normal voltage stability limit in north west Victoria as a result of commissioning of BESS at Koorangie. The revised limit manages pre-contingent flow on the Wemen to Koorangie 220 kV line to avoid voltage collapse at Koorangie, Kerang or Wemen on loss of the Crowlands to Bulgana to Horsham or Horsham to Murra Warra to Kiamal 220 kV line. The revised constraint equation includes the generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink and V-SA. Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit will be implemented at 0900 hrs on Monday 31st March 2025, by updating V^^V_NIL_KGTS.
For full details on the factors this constraint equation has now been loaded into AEMO's pre-production systems.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/03/2025
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 125699 is cancelled at 1415 hrs.
Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/03/2025
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 125697 has been updated at 1045 hrs to the following:
From 1700 hrs 16/03/2025 to 1830 hrs 16/03/2025.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 656 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
PDPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/03/2025
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:
[1.] From 1730 hrs 16/03/2025 to 1800 hrs 16/03/2025.
The forecast capacity reserve requirement is 1105 MW.
The minimum capacity reserve available is 1017 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 NSW Region on 16/03/2025
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 125624 is cancelled at 1200 hrs 14/03/2025.
No LOR2 condition is currently forecast in the STPASA period.
AEMO Operations
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 16/03/2025
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 125622 has been updated at 1000 hrs 14/03/2025 to the following:
From 1730 hrs to 1830 hrs 16/03/2025.
The forecast capacity reserve requirement is 1019 MW.
The minimum capacity reserve available is 845 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.
AEMO Operations