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114966RECLASSIFY CONTINGENCY22/02/2024 04:54:09 PM
Cancellation of the reclassification of a Non-Credible Contingency Event: Torrens Island A - Cherry Gardens 275 kV line and Para - Angas Creek 132 kV line in SA due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any bushfire in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Torrens Island A - Cherry Gardens 275 kV line and Para - Angas Creek 132 kV line
Cancellation time: 22/02/2024 16:50
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 114965
Manager NEM Real Time Operations
Cancellation of the reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any bushfire in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: SA
Lines: Torrens Island A - Cherry Gardens 275 kV line and Para - Angas Creek 132 kV line
Cancellation time: 22/02/2024 16:50
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 114965
Manager NEM Real Time Operations
114965RECLASSIFY CONTINGENCY22/02/2024 03:53:07 PM
Reclassification of a Non-Credible Contingency Event: Torrens Island A - Cherry Gardens 275kV line and Para - Angas Creek 132 kV line in SA due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: SA
Lines: Torrens Island A - Cherry Gardens 275kV line and Para - Angas Creek 132 kV line
Duration: 22/02/2024 15:50 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: SA
Lines: Torrens Island A - Cherry Gardens 275kV line and Para - Angas Creek 132 kV line
Duration: 22/02/2024 15:50 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
114964MARKET INTERVENTION22/02/2024 04:01:24 PM
Direction - SA region 22/02/2024
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 22/02/2024
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 22/02/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 22/02/2024
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 22/02/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
114961MARKET INTERVENTION22/02/2024 04:00:07 PM
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 21/02/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 21/02/2024
Refer Market Notice 114921
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 22/02/2024
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 21/02/2024
Refer Market Notice 114921
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 22/02/2024
Manager NEM Real Time Operations
114959NON-CONFORMANCE22/02/2024 03:00:18 PM
NON-CONFORMANCE Region SA1 Thursday, 22 February 2024
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE SA1 Region Thursday, 22 February 2024
AEMO has declared the following units comprising an Aggregate Dispatch Group as non-conforming under clause 3.8.23 of the National Electricity Rules:
Units: HPRG1, HPRL1
Aggregate Dispatch Group: HORNSDPR_ADG1
Duration: 22/02/2024 14:55 to 22/02/2024 15:00
Amount: 12 MW
Constraint: NC-S_HORNSDPR_ADG1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE SA1 Region Thursday, 22 February 2024
AEMO has declared the following units comprising an Aggregate Dispatch Group as non-conforming under clause 3.8.23 of the National Electricity Rules:
Units: HPRG1, HPRL1
Aggregate Dispatch Group: HORNSDPR_ADG1
Duration: 22/02/2024 14:55 to 22/02/2024 15:00
Amount: 12 MW
Constraint: NC-S_HORNSDPR_ADG1
Auto-generated on behalf of Manager NEM Real Time Operations
114958RESERVE NOTICE22/02/2024 03:10:35 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 23/02/2024
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 114917 is cancelled at 1400 hrs 22/02/2024.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR1 condition in the QLD region advised in AEMO Electricity Market Notice No. 114917 is cancelled at 1400 hrs 22/02/2024.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
114957MARKET INTERVENTION22/02/2024 02:35:00 PM
Update - Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 114923
The synchronous generating units currently expected to be synchronised in SA from 0030 hrs 23/02/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 22/02/2024, 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
Update - Possible intervention to manage power system security in SA region
Refer AEMO Electricity Market Notice 114923
The synchronous generating units currently expected to be synchronised in SA from 0030 hrs 23/02/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 22/02/2024, 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
114956SETTLEMENTS RESIDUE22/02/2024 02:30:28 PM
[EventId:202402221430_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 22 February 2024 14:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1430 hrs on 22 February 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 February 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1430 hrs on 22 February 2024.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1430 hrs on 22 February 2024
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 22 February 2024.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to SA directional interconnector.
The negative residue constraint set NRM_VIC1_SA1 commenced operating from 1430 hrs on 22 February 2024.
This constraint set contains an equation with the following interconnectors on the LHS:
V-S-MNSP1
V-SA
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
114955RECLASSIFY CONTINGENCY22/02/2024 02:28:11 PM
Reclassification of a Non-Credible Contingency Event: Tungatinah - Waddamana No.1 and No.2 110kV lines in TAS due to bushfire.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS
Lines: Tungatinah - Waddamana No.1 and No.2 110kV lines
Duration: 22/02/2024 14:25 until further notice
Constraint set(s) invoked: T-TUWA12_110_N-2
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to bushfire.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: TAS
Lines: Tungatinah - Waddamana No.1 and No.2 110kV lines
Duration: 22/02/2024 14:25 until further notice
Constraint set(s) invoked: T-TUWA12_110_N-2
Manager NEM Real Time Operations