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Update - Possible intervention to manage power system security in SA region
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 112415
The synchronous generating units currently expected to be synchronised in SA from 0700 hrs 17/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1500 hrs 16/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
[EventId:202312161315_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 16 December 2023 13:15
Issued by Australian Energy Market Operator Ltd at 1315 hrs on 16 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 16 December 2023.
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 1315 hrs on 16 December 2023.
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.
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 15/12/2023
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 15/12/2023
Refer Market Notice 112383
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 16/12/2023
Manager NEM Real Time Operations
Possible intervention to manage power system security in South Australia (SA) Region
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0630 hrs 17/12/2023 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
[EventId:202312161230_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 16 December 2023 12:30
Issued by Australian Energy Market Operator Ltd at 1230 hrs on 16 December 2023
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 16 December 2023.
Refer to market notice: 112399
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 1230 hrs on 16 December 2023.
This is an AEMO autogenerated Market Notice.
[EventId:202312161135_confirmed] Prices for interval 16-Dec-2023 11:35 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 16 December 2023
PRICES ARE NOW CONFIRMED for trading interval 16-Dec-2023 11:35.
In accordance with Market Notice 112401 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202312161200_confirmed] Prices for interval 16-Dec-2023 12:00 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 16 December 2023
PRICES ARE NOW CONFIRMED for trading interval 16-Dec-2023 12:00.
In accordance with Market Notice 112407 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202312161155_confirmed] Prices for interval 16-Dec-2023 11:55 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 16 December 2023
PRICES ARE NOW CONFIRMED for trading interval 16-Dec-2023 11:55.
In accordance with Market Notice 112406 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
[EventId:202312161150_confirmed] Prices for interval 16-Dec-2023 11:50 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1200 hrs on 16 December 2023
PRICES ARE NOW CONFIRMED for trading interval 16-Dec-2023 11:50.
In accordance with Market Notice 112404 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.