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73235RECLASSIFY CONTINGENCY31/01/2020 07:53:25 PM
Reclassification of a Non-Credible Contingency Event: Hazelwood - Rowville No.1 220kV line and Hazelwood - Rowville No.2 220kV line in VIC1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. 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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Duration: 31/01/2020 19:53 until further notice
Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. 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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Duration: 31/01/2020 19:53 until further notice
Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
73234RESERVE NOTICE31/01/2020 07:50:57 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 31/01/2020
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 73167 is cancelled at 1930 hrs 31/01/2020
Manager NEM Real Time Operations
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 73167 is cancelled at 1930 hrs 31/01/2020
Manager NEM Real Time Operations
73233MARKET INTERVENTION31/01/2020 07:54:41 PM
Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0400 hrs 01/02/2020 to 1630 hrs 01/02/2020 in Pre-dispatch published at 1930 hrs 31/01/2020 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 2100 hrs 31/01/2020, 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
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0400 hrs 01/02/2020 to 1630 hrs 01/02/2020 in Pre-dispatch published at 1930 hrs 31/01/2020 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 2100 hrs 31/01/2020, 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
73232RESERVE NOTICE31/01/2020 07:34:01 PM
Cancellation of Actual Lack Of Reserve Level 2 (LOR2) in the VIC region - 31/01/2020
AEMO ELECTRICITY MARKET NOTICE
The Actual LOR2 Condition in the Vic Region advised in AEMO Electricity Market Notice No. 73183 is cancelled at 1930 hrs 31/01/2020.
Manager NEM Real Time Operations
The Actual LOR2 Condition in the Vic Region advised in AEMO Electricity Market Notice No. 73183 is cancelled at 1930 hrs 31/01/2020.
Manager NEM Real Time Operations
73231RESERVE NOTICE31/01/2020 07:21:57 PM
Cancellation of Actual (LOR2) condition in the NSW region - 31/01/2020
AEMO ELECTRICITY MARKET NOTICE
The Actual LOR2 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 73188 is cancelled at 1920 hrs 31/01/2020.
Manager NEM Real Time Operations
The Actual LOR2 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 73188 is cancelled at 1920 hrs 31/01/2020.
Manager NEM Real Time Operations
73230SETTLEMENTS RESIDUE31/01/2020 07:15:25 PM
[EventId:202001311915_NRM_VIC1_NSW1_stopped] NEGRES CONSTRAINT NRM_VIC1_NSW1 ceased operating from 31 January 2020 19:15
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1915 hrs on 31 January 2020
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 31 January 2020.
Refer to market notice: 73227
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to NSW directional interconnector.
The negative residue constraint NRM_VIC1_NSW1 ceased operating at 1915 hrs on 31 January 2020.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1915 hrs on 31 January 2020
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 31 January 2020.
Refer to market notice: 73227
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to NSW directional interconnector.
The negative residue constraint NRM_VIC1_NSW1 ceased operating at 1915 hrs on 31 January 2020.
This is an AEMO autogenerated Market Notice.
73229SETTLEMENTS RESIDUE31/01/2020 07:01:37 PM
[EventId:202001311900_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 31 January 2020 19:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 31 January 2020
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 31 January 2020.
Refer to market notice: 73226
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 1900 hrs on 31 January 2020.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1900 hrs on 31 January 2020
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 31 January 2020.
Refer to market notice: 73226
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 1900 hrs on 31 January 2020.
This is an AEMO autogenerated Market Notice.
73228NON-CONFORMANCE31/01/2020 07:00:19 PM
NON-CONFORMANCE Region SA1 Friday, 31 January 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE SA1 Region Friday, 31 January 2020
AEMO declared a schedule generating unit non-conforming
Unit: PPCCGT
Duration: 31/01/2020 18:50 to 31/01/2020 19:00
Amount: 40 MW
Constraint: NC-S_PPCCGT
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE SA1 Region Friday, 31 January 2020
AEMO declared a schedule generating unit non-conforming
Unit: PPCCGT
Duration: 31/01/2020 18:50 to 31/01/2020 19:00
Amount: 40 MW
Constraint: NC-S_PPCCGT
Auto-generated on behalf of Manager NEM Real Time Operations
73227SETTLEMENTS RESIDUE31/01/2020 06:40:30 PM
[EventId:202001311840_NRM_VIC1_NSW1_started] NEGRES CONSTRAINT NRM_VIC1_NSW1 started operating from 31 January 2020 18:40
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1840 hrs on 31 January 2020
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 31 January 2020.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to NSW directional interconnector.
The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 1840 hrs on 31 January 2020.
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.
Issued by Australian Energy Market Operator Ltd at 1840 hrs on 31 January 2020
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to NSW - 31 January 2020.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the VIC to NSW directional interconnector.
The negative residue constraint set NRM_VIC1_NSW1 commenced operating from 1840 hrs on 31 January 2020.
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.