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128374NON-CONFORMANCE26/07/2025 01:00:19 PM
NON-CONFORMANCE Region VIC1 Saturday, 26 July 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Saturday, 26 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: RANGEB1
Duration: 26/07/2025 12:45 to 26/07/2025 13:00
Amount: 102 MW
Constraint: NC-V_RANGEB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Saturday, 26 July 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: RANGEB1
Duration: 26/07/2025 12:45 to 26/07/2025 13:00
Amount: 102 MW
Constraint: NC-V_RANGEB1
Auto-generated on behalf of Manager NEM Real Time Operations
128373MARKET INTERVENTION26/07/2025 01:18:35 PM
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2230 hrs 26/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 2230 hrs 26/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
128359POWER SYSTEM EVENTS26/07/2025 08:58:23 AM
Update - Non-credible contingency event - NSW region - 26/07/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 26/07/2025
Refer AEMO Electricity Market Notice 128353
At 0832 hrs the Canberra A 132kV Bus was 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 - 26/07/2025
Refer AEMO Electricity Market Notice 128353
At 0832 hrs the Canberra A 132kV Bus was 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
128353POWER SYSTEM EVENTS26/07/2025 06:00:15 AM
Non-credible contingency event - NSW region - 26/07/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 26/07/2025
At 0449 hrs the Canberra 132 kV A Bus and the Canberra to Latham A2 132 kV Line 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 - 26/07/2025
At 0449 hrs the Canberra 132 kV A Bus and the Canberra to Latham A2 132 kV Line 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
128318MARKET INTERVENTION25/07/2025 05:00:06 PM
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE.
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128311
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 27/07/2025.
The direction update is issued at 1700 hrs 25/07/2025.
Manager NEM Real Time Operations
Update Direction - AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128311
The TORRB2 TORRENS ISLAN direction is now expected to stay in place until 0400 hrs 27/07/2025.
The direction update is issued at 1700 hrs 25/07/2025.
Manager NEM Real Time Operations
128317RESERVE NOTICE25/07/2025 03:07:49 PM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 28/07/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128313 is cancelled at 1400 hrs 25/07/2025.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 128313 is cancelled at 1400 hrs 25/07/2025.
No LOR condition is currently forecast in the STPASA period.
AEMO Operations
128314MARKET INTERVENTION25/07/2025 12:36:03 PM
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO ELECTRICITY MARKET NOTICE
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0400 hrs 26/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
Foreseeable AEMO intervention under clause 4.8.5A (a) of the NER in SA region
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the SA region from 0400 hrs 26/07/2025.
The foreseeable circumstance requiring the need for intervention is Voltage.
Manager NEM Real Time Operations
128313RESERVE NOTICE25/07/2025 10:27:08 AM
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 28/07/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 0730 hrs to 0900 hrs 28/07/2025.
The forecast capacity reserve requirement is 563 MW.
The minimum capacity reserve available is 536 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following period:
From 0730 hrs to 0900 hrs 28/07/2025.
The forecast capacity reserve requirement is 563 MW.
The minimum capacity reserve available is 536 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
128311MARKET INTERVENTION25/07/2025 08:00:40 AM
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
AEMO ELECTRICITY MARKET NOTICE
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128310
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN at 0800 hrs 25/07/2025
Type of resource: generating unit
Required actions: Remain synchronised and follow dispatch targets at 2030 hrs 25/07/2025
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 0400 hrs 26/07/2025.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
Direction - SA region to AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN
Refer to Market Notice 128310
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to AGL SA Generation Pty Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: AGL SA Generation Pty Limited - TORRB2 TORRENS ISLAN at 0800 hrs 25/07/2025
Type of resource: generating unit
Required actions: Remain synchronised and follow dispatch targets at 2030 hrs 25/07/2025
Services provided: Voltage Control
Circumstances necessitating the Direction: Voltage
Circumstances necessitating the Direction additional detail: The synchronous generating units currently expected to be synchronised in SA will be inadequate to maintain sufficient Voltage Control in SA. Intervention is required to maintain the power system in a secure operating state
Expected duration: 0400 hrs 26/07/2025.
AGL SA Generation Pty Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations