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106312RESERVE NOTICE06/03/2023 06:50:22 PM
Cancellation of Actual (LOR2) condition in the NSW region - 06/03/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR2) condition in the NSW region - 06/03/2023
The Actual LOR2 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 106310 is cancelled at 1850 hrs 06/03/2023.
Manager NEM Real Time Operations
Cancellation of Actual (LOR2) condition in the NSW region - 06/03/2023
The Actual LOR2 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 106310 is cancelled at 1850 hrs 06/03/2023.
Manager NEM Real Time Operations
106310RESERVE NOTICE06/03/2023 05:31:44 PM
Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 06/03/2023
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 06/03/2023
An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1700 hrs.
The Actual LOR2 condition is forecast to exist until 1730 hrs.
The forecast capacity reserve requirement is 700 MW.
The minimum capacity reserve available is 611 MW.
AEMO is seeking an immediate market response.
An insufficient market response may require AEMO to implement a AEMO intervention event.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 06/03/2023
An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1700 hrs.
The Actual LOR2 condition is forecast to exist until 1730 hrs.
The forecast capacity reserve requirement is 700 MW.
The minimum capacity reserve available is 611 MW.
AEMO is seeking an immediate market response.
An insufficient market response may require AEMO to implement a AEMO intervention event.
Manager NEM Real Time Operations
106175CONSTRAINTS01/03/2023 11:54:17 AM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 102074
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 to include following combinations.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=0, Haughton Syncon status = ON/OFF, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Kaban Windfarm to 100% (with Haughton Syncon ON), 0% (with Haughton Syncon Syncon OFF) and no limit to other NQLD Plants.
A revision to the constraint equations will be implemented at 1400 hrs on Wednesday 1st March 2023.
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. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.
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
Refer to market notice 102074
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 to include following combinations.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=0, Haughton Syncon status = ON/OFF, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Kaban Windfarm to 100% (with Haughton Syncon ON), 0% (with Haughton Syncon Syncon OFF) and no limit to other NQLD Plants.
A revision to the constraint equations will be implemented at 1400 hrs on Wednesday 1st March 2023.
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. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.
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
105936CONSTRAINTS17/02/2023 05:07:05 PM
Changes to Murraylink Very Fast Runback and constraints in Victoria
AEMO ELECTRICITY MARKET NOTICE
The Murraylink Very Fast Runback (VFRB) scheme is being modified to increase the capacity of the network due to the increase in generation in the area. The scheme will be changed so Murraylink VFRB can be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.
The changes to the scheme will be activated and constraint equaiton modified at 1200hrs Monday 20th February 2023. The following system normal constraint equations will be modified:
V^^V_NIL_KGTS
V^^V_NIL_KGTS_2
V>>SML_NIL_7A
V>>SML_NIL_7B
V>>SML_NIL_7C
V>>V_NIL_13
V>>V_NIL_14
V>>V_NIL_20
V>>V_NIL_21
V>>V_NIL_22
V>>V_NIL_23
V>>V_NIL_24
V>>V_NIL_25
V>>V_NIL_26
V>>V_NIL_26_1
V>>V_NIL_26A
V>>V_NIL_26A_1
For full details on the factors on constraint equations and all the constrint equation changes - these have now been loaded into AEMO's pre-production systems.
Ben Blake
AEMO Operations
The Murraylink Very Fast Runback (VFRB) scheme is being modified to increase the capacity of the network due to the increase in generation in the area. The scheme will be changed so Murraylink VFRB can be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.
The changes to the scheme will be activated and constraint equaiton modified at 1200hrs Monday 20th February 2023. The following system normal constraint equations will be modified:
V^^V_NIL_KGTS
V^^V_NIL_KGTS_2
V>>SML_NIL_7A
V>>SML_NIL_7B
V>>SML_NIL_7C
V>>V_NIL_13
V>>V_NIL_14
V>>V_NIL_20
V>>V_NIL_21
V>>V_NIL_22
V>>V_NIL_23
V>>V_NIL_24
V>>V_NIL_25
V>>V_NIL_26
V>>V_NIL_26_1
V>>V_NIL_26A
V>>V_NIL_26A_1
For full details on the factors on constraint equations and all the constrint equation changes - these have now been loaded into AEMO's pre-production systems.
Ben Blake
AEMO Operations
105423RESERVE NOTICE31/01/2023 07:44:10 PM
Cancellation of Actual (LOR2) condition in the QLD region - 31/01/2023
AEMO ELECTRICITY MARKET NOTICE
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
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
105421RESERVE NOTICE31/01/2023 07:16:51 PM
Actual Lack Of Reserve Level 2 (LOR2) in the QLD Region on 31/01/2023
AEMO ELECTRICITY MARKET NOTICE
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
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
102074CONSTRAINTS05/10/2022 01:28:35 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
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
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
101368CONSTRAINTS26/08/2022 10:59:09 AM
New Victorian system normal voltage stability limit
AEMO ELECTRICITY MARKET NOTICE
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
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
101028CONSTRAINTS16/08/2022 11:57:21 AM
Update to Vic to NSW voltage collapse limit
AEMO ELECTRICITY MARKET NOTICE
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
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