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124971NON-CONFORMANCE21/02/2025 12:10:28 PM
NON-CONFORMANCE Region VIC1 Friday, 21 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Friday, 21 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MCKAY1
Duration: 21/02/2025 12:00 to 21/02/2025 12:10
Amount: -54 MW
Constraint: NC-V_MCKAY1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Friday, 21 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MCKAY1
Duration: 21/02/2025 12:00 to 21/02/2025 12:10
Amount: -54 MW
Constraint: NC-V_MCKAY1
Auto-generated on behalf of Manager NEM Real Time Operations
124969NON-CONFORMANCE21/02/2025 12:05:21 PM
NON-CONFORMANCE Region SA1 Friday, 21 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE SA1 Region Friday, 21 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BLYTHB1
Duration: 21/02/2025 11:50 to 21/02/2025 12:05
Amount: -19 MW
Constraint: NC-S_BLYTHB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE SA1 Region Friday, 21 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BLYTHB1
Duration: 21/02/2025 11:50 to 21/02/2025 12:05
Amount: -19 MW
Constraint: NC-S_BLYTHB1
Auto-generated on behalf of Manager NEM Real Time Operations
124966POWER SYSTEM EVENTS21/02/2025 11:03:25 AM
Update - Non-credible contingency event - NSW region - 21/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 21/02/2025
Refer AEMO Electricity Market Notice 124944
At 1030 hrs the Capital WF A and C 330kV Buses were returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 21/02/2025
Refer AEMO Electricity Market Notice 124944
At 1030 hrs the Capital WF A and C 330kV Buses were returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
124965NON-CONFORMANCE21/02/2025 10:20:19 AM
NON-CONFORMANCE Region QLD1 Friday, 21 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Friday, 21 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GANGARR1
Duration: 21/02/2025 09:40 to 21/02/2025 10:20
Amount: 72 MW
Constraint: NC-Q_GANGARR1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Friday, 21 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GANGARR1
Duration: 21/02/2025 09:40 to 21/02/2025 10:20
Amount: 72 MW
Constraint: NC-Q_GANGARR1
Auto-generated on behalf of Manager NEM Real Time Operations
124964GENERAL NOTICE21/02/2025 10:16:45 AM
NEM Local Temperature Alerts for SA, VIC from 21 Feb 2025 to 25 Feb 2025
AEMO ELECTRICITY MARKET NOTICE
AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.
SA
Mt Gambier Ap (39+ Deg C): 22nd Feb
Port Augusta Ap (39+ Deg C): 22nd Feb, 25th Feb
VIC
Mildura Ap (39+ Deg C): 22nd Feb
Mortlake (39+ Deg C): 22nd Feb
The NEM Local Temperature Alert Levels are:
Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.
AEMO requests Market Participants to:
1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,
2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.
Further information is available at:
https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts
AEMO Operations Planning
AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.
SA
Mt Gambier Ap (39+ Deg C): 22nd Feb
Port Augusta Ap (39+ Deg C): 22nd Feb, 25th Feb
VIC
Mildura Ap (39+ Deg C): 22nd Feb
Mortlake (39+ Deg C): 22nd Feb
The NEM Local Temperature Alert Levels are:
Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.
AEMO requests Market Participants to:
1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,
2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.
Further information is available at:
https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts
AEMO Operations Planning
124958SETTLEMENTS RESIDUE20/02/2025 06:30:26 PM
[EventId:202502201830_NRM_VIC1_SA1_stopped] NEGRES CONSTRAINT NRM_VIC1_SA1 ceased operating from 20 February 2025 18:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1830 hrs on 20 February 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 20 February 2025.
Refer to market notice: 124950
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 1830 hrs on 20 February 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1830 hrs on 20 February 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 20 February 2025.
Refer to market notice: 124950
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the VIC to SA directional interconnector.
The negative residue constraint NRM_VIC1_SA1 ceased operating at 1830 hrs on 20 February 2025.
This is an AEMO autogenerated Market Notice.
124950SETTLEMENTS RESIDUE20/02/2025 05:35:31 PM
[EventId:202502201735_NRM_VIC1_SA1_started] NEGRES CONSTRAINT NRM_VIC1_SA1 started operating from 20 February 2025 17:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1735 hrs on 20 February 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 20 February 2025.
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 1735 hrs on 20 February 2025.
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 1735 hrs on 20 February 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - VIC to SA - 20 February 2025.
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 1735 hrs on 20 February 2025.
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.
124944POWER SYSTEM EVENTS20/02/2025 04:52:41 PM
Non-credible contingency event - NSW region - 20/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 20/02/2025
At 1619 hrs the Capital WF A and C 330kV Buses tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 20/02/2025
At 1619 hrs the Capital WF A and C 330kV Buses tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
124941NON-CONFORMANCE20/02/2025 02:25:16 PM
NON-CONFORMANCE Region NSW1 Thursday, 20 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Thursday, 20 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: CAPBES1
Duration: 20/02/2025 14:15 to 20/02/2025 14:25
Amount: 70 MW
Constraint: NC-N_CAPBES1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Thursday, 20 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: CAPBES1
Duration: 20/02/2025 14:15 to 20/02/2025 14:25
Amount: 70 MW
Constraint: NC-N_CAPBES1
Auto-generated on behalf of Manager NEM Real Time Operations