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Update to system normal constraint equation in NSW for transient voltage stability in south-west NSW
Refer to market notice 92840.
Transgrid has advised AEMO of an update to the transient voltage stability limit in south-west NSW for loss of Darlington Point to Wagga (63) 330 kV line. The limit will include terms for the Darlington Point and Riverina BESS.
The following constraint equation will be updated with the above changes at 1100 hrs Friday 20th September 2024.
N::N_NIL_63
For full details on the formulation, the new constraint equation has now been loaded into AEMO's pre-production systems.
For further details on these constraint equation please contact ben.blake@aemo.com.au
Ben Blake
AEMO Operations
Cancellation - Load Restoration Direction in the NSW Region - 08/07/2024
Cancellation - Load Restoration Direction in the NSW Region - 08/07/2024
Refer to AEMO Electricity Market Notice 117322
Load restoration as directed is complete. Direction cancelled from 2200 hrs 08/07/2024
Manager NEM Real Time Operations
Load Restoration Direction in the NSW Region
Load Restoration Direction in the NSW Region
AEMO has directed load restoration commencing at 1930 hrs 08/07/2024
in the NSW region
The direction was issued under section 116 of the NEL, and was a clause 4.8.9 instruction under the NER.
Manager NEM Real Time Operations
Load Shedding Direction in the NSW Region
Load Shedding Direction in the NSW Region
AEMO has directed load shedding commencing at 1817 hrs 08/07/2024
in the NSW region
to maintain power system security.
The direction was issued under section 116 of the NEL, and was a clause 4.8.9 instruction under the NER.
Manager NEM Real Time Operations
Update to system strength constraints in North Queensland
Refer to market notice 110677
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal system strength equations for low North Queensland demands and all Karreya stations out of service conditions have been revised.
A revision to the constraint equations will be implemented at 1400 hrs on Tuesday 20th February 2024.
The new system strength combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases.
Below constraint equations in the Q-NIL set will be modified:
- Q_NIL_STRGTH_KBWF
- Q_NIL_STRGTH_KBWF_I
- Q_NIL_STRGTH_HAUSF
- Q_NIL_STRGTH_HAUSF_I
- Q_NIL_STRGTH_MEWF
- Q_NIL_STRGTH_MEWF_I
AEMO Operations
Cancellation of Actual (LOR2) condition in the VIC region - 13/02/2024
Cancellation of Actual (LOR2) condition in the VIC region - 13/02/2024
The Actual LOR2 Condition in the VIC Region advised in AEMO Electricity Market Notice No.114589 is cancelled at 1614 hrs 13/02/2024.
Manager NEM Real Time Operations
Load Restoration Direction Cancellation in the Vic Region
Cancellation - Load Restoration Direction in the Vic Region - 13/02/2024
Refer to AEMO Electricity Market Notice ID 114607
Load restoration as directed is complete. Direction cancelled from 1510 hrs 13/02/2024.
Manager NEM Real Time Operations
Load Restoration Direction in the Vic Region
Load Restoration Direction in the Vic Region
AEMO has directed load restoration commencing at 1450 hrs 13/02/2024 in the Victoria region
The direction was issued under section 116 of the NEL, and was a clause 4.8.9 instruction under the NER.
Manager NEM Real Time Operations
Load Shedding Direction in the Vic Region
Load Shedding Direction in the Vic Region
AEMO has directed load shedding commencing at 1420 hrs 13/02/2024
in the Victoria region to restore power system security.
The direction was issued under section 116 of the NEL, and was a clause 4.8.9 instruction under the NER.
Manager NEM Real Time Operations