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124231NON-CONFORMANCE06/02/2025 04:31:43 AM
NON-CONFORMANCE Region NSW1 Thursday, 6 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Thursday, 6 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP5
Duration: 06/02/2025 01:25 to 06/02/2025 04:30
Amount: -44 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Thursday, 6 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP5
Duration: 06/02/2025 01:25 to 06/02/2025 04:30
Amount: -44 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
124229NON-CONFORMANCE06/02/2025 12:25:20 AM
NON-CONFORMANCE Region NSW1 Thursday, 6 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Wednesday, 5 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP5
Duration: 05/02/2025 23:15 to 06/02/2025 00:25
Amount: -20 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Wednesday, 5 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: VP5
Duration: 05/02/2025 23:15 to 06/02/2025 00:25
Amount: -20 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
124181POWER SYSTEM EVENTS05/02/2025 03:22:35 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124044
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 cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124044
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 cancel the reclassification of this event as a credible contingency event.
Manager NEM Real Time Operations
124180GENERAL NOTICE05/02/2025 03:16:32 PM
Update - Vulnerable lines in TAS region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in TAS region
Refer to AEMO Electricity Market Notice 124044
At 1410 hrs 03/02/2025 the Farrell - Reece No.1 and No.2 220 kV lines lines tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Farrell - Reece No.1 and No.2 220 kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in TAS region
Refer to AEMO Electricity Market Notice 124044
At 1410 hrs 03/02/2025 the Farrell - Reece No.1 and No.2 220 kV lines lines tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Farrell - Reece No.1 and No.2 220 kV lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
124117NON-CONFORMANCE04/02/2025 04:05:34 PM
NON-CONFORMANCE Region QLD1 Tuesday, 4 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Tuesday, 4 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: SWAN_E
Duration: 04/02/2025 15:50 to 04/02/2025 16:00
Amount: 35 MW
Constraint: NC-Q_SWAN_E
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Tuesday, 4 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: SWAN_E
Duration: 04/02/2025 15:50 to 04/02/2025 16:00
Amount: 35 MW
Constraint: NC-Q_SWAN_E
Auto-generated on behalf of Manager NEM Real Time Operations
124065NON-CONFORMANCE04/02/2025 12:15:15 PM
NON-CONFORMANCE Region NSW1 Tuesday, 4 February 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Tuesday, 4 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 04/02/2025 12:05 to 04/02/2025 12:15
Amount: -57 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Tuesday, 4 February 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 04/02/2025 12:05 to 04/02/2025 12:15
Amount: -57 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations
124063GENERAL NOTICE04/02/2025 10:38:35 AM
NEM Local Temperature Alerts for SA, TAS, VIC from 04 Feb 2025 to 08 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
Port Augusta Ap (39+ Deg C): 6th Feb
TAS
Launceston Ti Tree Bend (33+ Deg C): 4th Feb
VIC
Latrobe Valley Ap (39+ Deg C): 4th Feb
Mildura Ap (39+ Deg C): 4th Feb, 6th 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
Port Augusta Ap (39+ Deg C): 6th Feb
TAS
Launceston Ti Tree Bend (33+ Deg C): 4th Feb
VIC
Latrobe Valley Ap (39+ Deg C): 4th Feb
Mildura Ap (39+ Deg C): 4th Feb, 6th 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
124044POWER SYSTEM EVENTS03/02/2025 02:13:15 PM
Update - Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: TAS
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 03/02/2025
Refer AEMO Electricity Market Notice 124043
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: TAS
Elements: Farrell - Reece No.1 and No.2 220 kV lines
Duration: 1410 hrs 03/02/2025 until further notice
Constraint set(s) invoked: F-T-FARE_N-2
Manager NEM Real Time Operations
124043POWER SYSTEM EVENTS03/02/2025 02:02:24 PM
Non-credible contingency event - TAS region - 03/02/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 and No.2 220 kV lines 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - TAS region - 03/02/2025
At 1333 hrs the Farrell - Reece No.1 and No.2 220 kV lines 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 has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations