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Fast Frequency Response Market - Increase in R1 FCAS dispatch cap from 9th December 2024
Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on 9th December AEMO will increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 375 MW to 425 MW
No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date.
For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
Andrew Groom
AEMO Operations
Update to system strength requirements in North Queensland
Refer to market notice 106175
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Clarke Creek wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1100 hrs on Monday 9th December 2024.
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_KBWF
-Q_NIL_STRGTH_MEWF
Two new equations have been added:
-Q_NIL_STRGTH_CKWF
-Q_NIL_STRGTH_CKWF_I
AEMO Operations
NON-CONFORMANCE Region VIC1 Wednesday, 4 December 2024
NON-CONFORMANCE VIC1 Region Wednesday, 4 December 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GANNB1
Duration: 04/12/2024 20:55 to 04/12/2024 21:05
Amount: -24 MW
Constraint: NC-V_GANNB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Wednesday, 4 December 2024
NON-CONFORMANCE NSW1 Region Wednesday, 4 December 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP6
Duration: 04/12/2024 06:25 to 04/12/2024 06:40
Amount: -16 MW
Constraint: NC-N_VP6
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202412031750_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 03 December 2024 17:50
Issued by Australian Energy Market Operator Ltd at 1750 hrs on 3 December 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 December 2024.
Refer to market notice: 121435
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 1750 hrs on 3 December 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202412031635_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 03 December 2024 16:35
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 3 December 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 December 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 1635 hrs on 3 December 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.
[EventId:202412031615_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 03 December 2024 16:15
Issued by Australian Energy Market Operator Ltd at 1615 hrs on 3 December 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 December 2024.
Refer to market notice: 121428
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 1615 hrs on 3 December 2024.
This is an AEMO autogenerated Market Notice.
[EventId:202412031510_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 03 December 2024 15:10
Issued by Australian Energy Market Operator Ltd at 1510 hrs on 3 December 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 December 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 1510 hrs on 3 December 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.
[EventId:202412031300_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 03 December 2024 13:00
Issued by Australian Energy Market Operator Ltd at 1300 hrs on 3 December 2024
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 December 2024.
Refer to market notice: 121415
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 1300 hrs on 3 December 2024.
This is an AEMO autogenerated Market Notice.