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144130NON-CONFORMANCE23/05/2026 11:30:26 AM
NON-CONFORMANCE Region QLD1 Saturday, 23 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Saturday, 23 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: STAN-1
Duration: 23/05/2026 11:25 to 23/05/2026 11:30
Amount: 22 MW
Constraint: NC-Q_STAN-1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Saturday, 23 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: STAN-1
Duration: 23/05/2026 11:25 to 23/05/2026 11:30
Amount: 22 MW
Constraint: NC-Q_STAN-1
Auto-generated on behalf of Manager NEM Real Time Operations
144127NON-CONFORMANCE22/05/2026 11:05:20 AM
NON-CONFORMANCE Region QLD1 Friday, 22 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Friday, 22 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 22/05/2026 10:55 to 22/05/2026 11:05
Amount: 11 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Friday, 22 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 22/05/2026 10:55 to 22/05/2026 11:05
Amount: 11 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
144126NON-CONFORMANCE21/05/2026 08:50:13 AM
NON-CONFORMANCE Region QLD1 Thursday, 21 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Thursday, 21 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: STAN-4
Duration: 21/05/2026 08:45 to 21/05/2026 08:50
Amount: 15 MW
Constraint: NC-Q_STAN-4
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Thursday, 21 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: STAN-4
Duration: 21/05/2026 08:45 to 21/05/2026 08:50
Amount: 15 MW
Constraint: NC-Q_STAN-4
Auto-generated on behalf of Manager NEM Real Time Operations
144124NON-CONFORMANCE20/05/2026 09:30:13 PM
NON-CONFORMANCE Region QLD1 Wednesday, 20 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Wednesday, 20 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: SWANBBF1
Duration: 20/05/2026 21:25 to 20/05/2026 21:30
Amount: -117 MW
Constraint: NC-Q_SWANBBF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Wednesday, 20 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: SWANBBF1
Duration: 20/05/2026 21:25 to 20/05/2026 21:30
Amount: -117 MW
Constraint: NC-Q_SWANBBF1
Auto-generated on behalf of Manager NEM Real Time Operations
144117POWER SYSTEM EVENTS18/05/2026 01:54:51 PM
Update - Non-credible contingency event -NSW region - 17 May 2026
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 17/05/2026
Refer AEMO Electricity Market Notice 144112
At 1327 hrs the Upper Tumut Units 1, 2, 3 and 4 were made available to return 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 - 17/05/2026
Refer AEMO Electricity Market Notice 144112
At 1327 hrs the Upper Tumut Units 1, 2, 3 and 4 were made available to return 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
144115NON-CONFORMANCE18/05/2026 11:40:13 AM
NON-CONFORMANCE Region NSW1 Monday, 18 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Monday, 18 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BW02
Duration: 18/05/2026 11:35 to 18/05/2026 11:40
Amount: 41 MW
Constraint: NC-N_BW02
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Monday, 18 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BW02
Duration: 18/05/2026 11:35 to 18/05/2026 11:40
Amount: 41 MW
Constraint: NC-N_BW02
Auto-generated on behalf of Manager NEM Real Time Operations
144113NON-CONFORMANCE18/05/2026 06:05:10 AM
NON-CONFORMANCE Region QLD1 Monday, 18 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Monday, 18 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: TARBESS1
Duration: 18/05/2026 06:00 to 18/05/2026 06:05
Amount: -23 MW
Constraint: NC-Q_TARBESS1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Monday, 18 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: TARBESS1
Duration: 18/05/2026 06:00 to 18/05/2026 06:05
Amount: -23 MW
Constraint: NC-Q_TARBESS1
Auto-generated on behalf of Manager NEM Real Time Operations
144112POWER SYSTEM EVENTS18/05/2026 12:00:40 AM
Non-credible contingency event - NSW region - 17/05/2026
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 17/05/2026
At 2317 hrs the Upper Tumut Units 1, 2, 3 and 4 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 - 17/05/2026
At 2317 hrs the Upper Tumut Units 1, 2, 3 and 4 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
144090NON-CONFORMANCE15/05/2026 08:35:19 PM
NON-CONFORMANCE Region VIC1 Friday, 15 May 2026
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Friday, 15 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: LYA2
Duration: 15/05/2026 20:30 to 15/05/2026 20:35
Amount: -16 MW
Constraint: NC-V_LYA2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Friday, 15 May 2026
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: LYA2
Duration: 15/05/2026 20:30 to 15/05/2026 20:35
Amount: -16 MW
Constraint: NC-V_LYA2
Auto-generated on behalf of Manager NEM Real Time Operations