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144172MARKET INTERVENTION31/05/2026 11:15:08 PM
Cancellation: Direction issued to: Origin Energy Electricity Limited - QUARANTINE PS UNIT 5
AEMO ELECTRICITY MARKET NOTICE
Cancellation: Direction issued to: Origin Energy Electricity Limited - QUARANTINE PS UNIT 5
Refer to Market Notice 144169
Direction is cancelled from: 2315 hrs 31/05/2026
Manager NEM Real Time Operations
Cancellation: Direction issued to: Origin Energy Electricity Limited - QUARANTINE PS UNIT 5
Refer to Market Notice 144169
Direction is cancelled from: 2315 hrs 31/05/2026
Manager NEM Real Time Operations
144171MARKET INTERVENTION31/05/2026 11:15:28 PM
Cancellation - AEMO Intervention Event - SA region 31/05/2026
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - SA region 31/05/2026
Refer to Market Notice 144170
The AEMO Intervention Event and all associated directions are cancelled from 2315 hrs on 31/05/2026.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - SA region 31/05/2026
Refer to Market Notice 144170
The AEMO Intervention Event and all associated directions are cancelled from 2315 hrs on 31/05/2026.
Manager NEM Real Time Operations
144170MARKET INTERVENTION31/05/2026 09:54:31 PM
Direction - SA region 31/05/2026
AEMO ELECTRICITY MARKET NOTICE
Direction - SA region 31/05/2026
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(a1)(1).
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 2150 hrs on 31/05/2026.
Intervention pricing does not apply to this AEMO intervention event.
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.
Manager NEM Real Time Operations
Direction - SA region 31/05/2026
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(a1)(1).
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 2150 hrs on 31/05/2026.
Intervention pricing does not apply to this AEMO intervention event.
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.
Manager NEM Real Time Operations
144169MARKET INTERVENTION31/05/2026 09:53:51 PM
Direction - in SA region to Origin Energy Electricity Limited - QUARANTINE PS UNIT 5
AEMO ELECTRICITY MARKET NOTICE
Direction - in SA region to Origin Energy Electricity Limited - QUARANTINE PS UNIT 5
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to Origin Energy Electricity Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: Origin Energy Electricity Limited - QUARANTINE PS UNIT 5 at 2145hrs 31/05/2026
Type of resource: generating unit
Required actions: Remain Synchronised and follow dispatch targets at 2200 hrs 31/05/2026
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: 2330 hrs 31/05/2026.
Origin Energy Electricity 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 - in SA region to Origin Energy Electricity Limited - QUARANTINE PS UNIT 5
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to Origin Energy Electricity Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: Origin Energy Electricity Limited - QUARANTINE PS UNIT 5 at 2145hrs 31/05/2026
Type of resource: generating unit
Required actions: Remain Synchronised and follow dispatch targets at 2200 hrs 31/05/2026
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: 2330 hrs 31/05/2026.
Origin Energy Electricity 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
144166POWER SYSTEM EVENTS29/05/2026 09:41:16 PM
Update - Non-credible contingency event - QLD region - 29/05/2026
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - QLD region - 29/05/2026
Refer AEMO Electricity Market Notice 144162
At 2135 hrs the Woolooga to Teebar Creek 8850 275kV Line and the Teebar Ck No2 275kV 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 - QLD region - 29/05/2026
Refer AEMO Electricity Market Notice 144162
At 2135 hrs the Woolooga to Teebar Creek 8850 275kV Line and the Teebar Ck No2 275kV 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
144162POWER SYSTEM EVENTS29/05/2026 10:50:40 AM
Non-credible contingency event - QLD region - 29/05/2026
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - QLD region - 29/05/2026
At 1013 hrs the Woolooga to Teebar Creek 8850 275kV Line and the Teebar Ck No2 275kV Bus 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 - QLD region - 29/05/2026
At 1013 hrs the Woolooga to Teebar Creek 8850 275kV Line and the Teebar Ck No2 275kV Bus 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
144138MARKET INTERVENTION24/05/2026 12:17:26 PM
Cancellation - AEMO Intervention Event - SA region 24/05/2026
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - SA region 24/05/2026
Refer to Market Notice 144136
The AEMO Intervention Event and all associated directions are cancelled from 1220 hrs on 24/05/2026.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - SA region 24/05/2026
Refer to Market Notice 144136
The AEMO Intervention Event and all associated directions are cancelled from 1220 hrs on 24/05/2026.
Manager NEM Real Time Operations
144137MARKET INTERVENTION24/05/2026 12:16:55 PM
Cancellation: Direction issued to: AGL SA Generation Pty Limited - BARKER INLET PS
AEMO ELECTRICITY MARKET NOTICE
Cancellation: Direction issued to: AGL SA Generation Pty Limited - BARKER INLET PS
Refer to Market Notice 144135
Direction is cancelled from: 1220 hrs 24/05/2026
Manager NEM Real Time Operations
Cancellation: Direction issued to: AGL SA Generation Pty Limited - BARKER INLET PS
Refer to Market Notice 144135
Direction is cancelled from: 1220 hrs 24/05/2026
Manager NEM Real Time Operations
144136MARKET INTERVENTION24/05/2026 04:16:17 AM
Direction - SA region 24/05/2026
AEMO ELECTRICITY MARKET NOTICE
Direction - SA region 24/05/2026
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(a1)(1).
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 0405 hrs on 24/05/2026.
Intervention pricing does not apply to this AEMO intervention event.
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.
Manager NEM Real Time Operations
Direction - SA region 24/05/2026
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(a1)(1).
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 0405 hrs on 24/05/2026.
Intervention pricing does not apply to this AEMO intervention event.
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.
Manager NEM Real Time Operations