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Cancellation of Actual (LOR2) condition in the QLD region - 31/01/2023
The Actual LOR2 Condition in the QLD Region advised in AEMO Electricity Market Notice No.105421 is cancelled at 1940 hrs 31/01/2023.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 2 (LOR2) in the QLD Region on 31/01/2023
Actual Lack Of Reserve Level 2 (LOR2) in the QLD region - 31/01/2023
An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1900 hrs.
The Actual LOR2 condition is forecast to exist until 1930 hrs.
The forecast capacity reserve requirement is 500 MW.
The minimum capacity reserve available is 440 MW.
AEMO is seeking an immediate market response.
An insufficient market response may require AEMO to implement an AEMO intervention event.
Manager NEM Real Time Operations
Update to system strength requirements in North Queensland
Refer to market notice 101018
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1530 hrs on Wednesday 5th October 2022.
The new 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.
The constraint equation in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_XXXX
Q_NIL_STRGTH_XXXX_I
AEMO Operations
New Victorian system normal voltage stability limit
AEMO has identified a new voltage collapse issue in south-west Victoria. The voltage collapse occurs in the south-west region for loss of the Haunted Gully to Moorabool 500 kV line with simultaneous trip of both APD potlines as per Market Notice 91405.
The limit will manage flow towards Moorabool on the cut-set of Haunted Gully to Moorabool and Mortlake to Moorabool 500 kV lines.
The new constraint equation includes generators in south-west Victoria on the left-hand side as well as Heywood interconnector. Full details on the limits advice are to be published on 30th August 2022 on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The following constraint equation will be implemented and added to constraint set V-NIL at 1000 hrs on Tuesday 30th August 2022:
V^^V_NIL_SWVIC
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
Update to Vic to NSW voltage collapse limit
Refer to Market Notice 82819
AEMO has completed a comprehensive review of the system normal voltage stability limit for loss of all APD potlines for flows from Victoria to New South Wales. The revised limit is the result of latest network configuration, comprehensive generation/load patterns, and recent commissioned generators in Victoria and southern NSW which could potentially mean higher transfers into NSW under some generation/load scenarios.
The revised constraint equation includes generators in southern NSW, north-west Victoria and hydro generation at Mt. Beauty on the left-hand side as well as VIC1-NSW1 and Murraylink. Full details on the limits advice are to be published on 18/08/2022 on the AEMO website: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The constraint is most likely to bind when there is low Vic demands and high transfers to NSW. When it binds it will restrict Vic to NSW transfers and southern NSW units.
This revised limit will be implemented to the following constraint equation at 1000 hrs Thursday 18th August 2022.
V^^N_NIL_1
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
Update to System strength requirements in North Queensland
Refer to market notice 93841
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to reduced numbers of Gladstone units online, the system normal equations have been revised to include below combination.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=2, Haughton Syncon status = ON, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Mt Emerald Windfarm to 80% and no limit to other solar farms.
A revision to the constraint equations will be implemented at 1100 hrs on Tuesday 16th August 2022.
The new combinations will be published in a limits advice document on AEMO's website on Wednesday 17th August 2022.
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.
The constraint equations in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_CLRSF
Q_NIL_STRGTH_COLSF
Q_NIL_STRGTH_DAYSF
Q_NIL_STRGTH_HAMSF
Q_NIL_STRGTH_HAUSF
Q_NIL_STRGTH_HAYSF
Q_NIL_STRGTH_KEP
Q_NIL_STRGTH_KIDSF
Q_NIL_STRGTH_MEWF
Q_NIL_STRGTH_RUGSF
Q_NIL_STRGTH_RRSF
Q_NIL_STRGTH_SMSF
Q_NIL_STRGTH_WHTSF
AEMO Operations
Cancellation of Actual (LOR2) condition in the QLD region - 13/08/2022
Cancellation of Actual (LOR2) condition in the QLD region - 13/08/2022
The Actual LOR2 Condition in the QLD Region advised in AEMO Electricity Market Notice No.100929 is cancelled at 0845 hrs 13/08/2022.
Manager NEM Real Time Operations
Cancellation of Actual (LOR2) condition in the Qld region - 05/07/2022
The Actual LOR2 Condition in the Qld Region advised in AEMO Electricity Market Notice No.99972 is cancelled at 0920 hrs 05/07/2022
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 2 (LOR2) in the QLD Region on 05/07/2022
Actual Lack Of Reserve Level 2 (LOR2) in the QLD region - 05/07/2022
An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 0830 hrs.
The Actual LOR2 condition is forecast to exist until 0900 hrs.
The forecast capacity reserve requirement is 509 MW.
The minimum capacity reserve available is 401 MW.
AEMO is seeking an immediate market response.
Manager NEM Real Time Operations