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126031INTER-REGIONAL TRANSFER29/03/2025 04:45:41 AM
Inter-regional transfer limit variation - Mullumbimby - Dunoon - Lismore 132 kV 9U6 line - NSW region - 29/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Mullumbimby - Dunoon - Lismore 132 kV 9U6 line - NSW region - 29/03/2025
At 0427 hrs 29/03/2025 there was an unplanned outage of Mullumbimby - Dunoon - Lismore 132 kV 9U6 line.
The following constraint set(s) invoked at 0435 hrs 29/03/2025
N-LSDU_9U6
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Mullumbimby - Dunoon - Lismore 132 kV 9U6 line - NSW region - 29/03/2025
At 0427 hrs 29/03/2025 there was an unplanned outage of Mullumbimby - Dunoon - Lismore 132 kV 9U6 line.
The following constraint set(s) invoked at 0435 hrs 29/03/2025
N-LSDU_9U6
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
126023CONSTRAINTS28/03/2025 03:39:03 PM
Update to Victorian system normal Kerang voltage stability limit
AEMO ELECTRICITY MARKET NOTICE
AEMO has completed a review of a system normal voltage stability limit in north west Victoria as a result of commissioning of BESS at Koorangie. The revised limit manages pre-contingent flow on the Wemen to Koorangie 220 kV line to avoid voltage collapse at Koorangie, Kerang or Wemen on loss of the Crowlands to Bulgana to Horsham or Horsham to Murra Warra to Kiamal 220 kV line. The revised constraint equation includes the generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink and V-SA. Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit will be implemented at 0900 hrs on Monday 31st March 2025, by updating V^^V_NIL_KGTS.
For full details on the factors this constraint equation has now been loaded into AEMO's pre-production systems.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
AEMO has completed a review of a system normal voltage stability limit in north west Victoria as a result of commissioning of BESS at Koorangie. The revised limit manages pre-contingent flow on the Wemen to Koorangie 220 kV line to avoid voltage collapse at Koorangie, Kerang or Wemen on loss of the Crowlands to Bulgana to Horsham or Horsham to Murra Warra to Kiamal 220 kV line. The revised constraint equation includes the generators in south-west NSW and north-west Victoria on the left-hand side as well as Murraylink and V-SA. Full details on the limits advice are to be published shortly on the AEMO website: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
The revised limit will be implemented at 0900 hrs on Monday 31st March 2025, by updating V^^V_NIL_KGTS.
For full details on the factors this constraint equation has now been loaded into AEMO's pre-production systems.
For further details on this constraint equation please contact terry.liu@aemo.com.au
Terry Liu
AEMO Operations
125993INTER-REGIONAL TRANSFER27/03/2025 11:57:49 AM
Inter-regional transfer limit variation - Hazelwood -South Morang No.1 500 kV line - VIC region - 27/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Hazelwood -South Morang No.1 500 kV line - VIC region - 27/03/2025
At 1150 hrs 27/03/2025 there was a short notice outage of Hazelwood -South Morang No.1 500 kV line.
The following constraint set(s) invoked at 1150 hrs 27/03/2025
V-HWSM
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Hazelwood -South Morang No.1 500 kV line - VIC region - 27/03/2025
At 1150 hrs 27/03/2025 there was a short notice outage of Hazelwood -South Morang No.1 500 kV line.
The following constraint set(s) invoked at 1150 hrs 27/03/2025
V-HWSM
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125990INTER-REGIONAL TRANSFER27/03/2025 08:27:19 AM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 27/03/2025
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_56F70932 from 0820 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_56F70932 from 0820 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
125964INTER-REGIONAL TRANSFER26/03/2025 04:39:26 PM
Inter-regional transfer limit variation - Palmerston A 220kV Bus - TAS region - 26/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Palmerston A 220kV Bus - TAS region - 26/03/2025
Refer to Market Notice 125962.
The following constraint set(s) invoked from 1600 hrs to 1620 hrs 26/03/2026.
T-LIPM_WACB
T-LIPM_WACB_SL_N-2
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Palmerston A 220kV Bus - TAS region - 26/03/2025
Refer to Market Notice 125962.
The following constraint set(s) invoked from 1600 hrs to 1620 hrs 26/03/2026.
T-LIPM_WACB
T-LIPM_WACB_SL_N-2
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
125945INTER-REGIONAL TRANSFER25/03/2025 03:53:45 PM
Inter-regional transfer limit variation - Lower Tumut - Canberra 07 330kV Line - NSW region - 25/03/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lower Tumut - Canberra 07 330kV Line - NSW region - 25/03/2025
A planned outage of Lower Tumut - Canberra 07 330kV Line in the NSW region was scheduled from 1746 hrs 21/03/2025 to 1800 hrs 26/03/2025.
The outage has been completed and Lower Tumut - Canberra 07 330kV Line returned to service at 1555 hrs 25/03/2025
Constraint set(s) revoked: N-CNLT_07
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lower Tumut - Canberra 07 330kV Line - NSW region - 25/03/2025
A planned outage of Lower Tumut - Canberra 07 330kV Line in the NSW region was scheduled from 1746 hrs 21/03/2025 to 1800 hrs 26/03/2025.
The outage has been completed and Lower Tumut - Canberra 07 330kV Line returned to service at 1555 hrs 25/03/2025
Constraint set(s) revoked: N-CNLT_07
Manager NEM Real Time Operations
125944NON-CONFORMANCE25/03/2025 03:45:15 PM
NON-CONFORMANCE Region QLD1 Tuesday, 25 March 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Tuesday, 25 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 25/03/2025 14:55 to 25/03/2025 15:45
Amount: -55 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Tuesday, 25 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 25/03/2025 14:55 to 25/03/2025 15:45
Amount: -55 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
125937NON-CONFORMANCE24/03/2025 11:30:20 PM
NON-CONFORMANCE Region QLD1 Monday, 24 March 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Monday, 24 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 24/03/2025 22:10 to 24/03/2025 23:30
Amount: -41 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Monday, 24 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_2
Duration: 24/03/2025 22:10 to 24/03/2025 23:30
Amount: -41 MW
Constraint: NC-Q_MPP_2
Auto-generated on behalf of Manager NEM Real Time Operations
125864NON-CONFORMANCE22/03/2025 02:45:19 PM
NON-CONFORMANCE Region QLD1 Saturday, 22 March 2025
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Saturday, 22 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: OAKEY1SF
Duration: 22/03/2025 12:40 to 22/03/2025 14:45
Amount: 23 MW
Constraint: NC-Q_OAKEY1SF
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Saturday, 22 March 2025
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: OAKEY1SF
Duration: 22/03/2025 12:40 to 22/03/2025 14:45
Amount: 23 MW
Constraint: NC-Q_OAKEY1SF
Auto-generated on behalf of Manager NEM Real Time Operations