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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 0700 hrs 28/12/2023 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:202312271245_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 27 December 2023 12:45
Issued by Australian Energy Market Operator Ltd at 1245 hrs on 27 December 2023
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 27 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 1245 hrs on 27 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.
Direction - SA region 26/12/2023
Direction - SA region 26/12/2023
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1605 hrs on 26/12/2023.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/12/2023
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 18/12/2023
Refer Market Notice 112492
The AEMO Intervention Event and all associated directions are cancelled from 2330 hrs 26/12/2023
Manager NEM Real Time Operations
[EventId:202312251700_review] Prices for interval 25-Dec-2023 17:00 are subject to review
Issued by Australian Energy Market Operator Ltd at 1655 hrs on 25 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 25-Dec-2023 17:00.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312251655_review] Prices for interval 25-Dec-2023 16:55 are subject to review
Issued by Australian Energy Market Operator Ltd at 1650 hrs on 25 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 25-Dec-2023 16:55.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312251650_review] Prices for interval 25-Dec-2023 16:50 are subject to review
Issued by Australian Energy Market Operator Ltd at 1645 hrs on 25 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 25-Dec-2023 16:50.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312251645_review] Prices for interval 25-Dec-2023 16:45 are subject to review
Issued by Australian Energy Market Operator Ltd at 1640 hrs on 25 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 25-Dec-2023 16:45.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
[EventId:202312251640_review] Prices for interval 25-Dec-2023 16:40 are subject to review
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 25 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 25-Dec-2023 16:40.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.