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Update to system strength constraints in North Queensland
Refer to market notice 110677
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal system strength equations for low North Queensland demands and all Karreya stations out of service conditions have been revised.
A revision to the constraint equations will be implemented at 1400 hrs on Tuesday 20th February 2024.
The new system strength combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases.
Below constraint equations in the Q-NIL set will be modified:
- Q_NIL_STRGTH_KBWF
- Q_NIL_STRGTH_KBWF_I
- Q_NIL_STRGTH_HAUSF
- Q_NIL_STRGTH_HAUSF_I
- Q_NIL_STRGTH_MEWF
- Q_NIL_STRGTH_MEWF_I
AEMO Operations
Inter-regional transfer limit variation -Directlink DC2 - NSW region - 19/02/2024
Inter-regional transfer limit variation - Directlink DC2 - NSW region - 19/02/2024
A planned outage of Directlink DC2 in the NSW region was scheduled from 2000 hrs 16/02/2024 to 1701 hrs 20/02/2024.
The outage has been completed and Directlink DC2 returned to service at 1425 hrs 19/02/2024.
The following constraint set(s) revoked at 1425 hrs 19/02/2024
N-MBTE_1
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
NON-CONFORMANCE Region NSW1 Sunday, 18 February 2024
NON-CONFORMANCE NSW1 Region Sunday, 18 February 2024
AEMO has declared the following units comprising an Aggregate Dispatch Group as non-conforming under clause 3.8.23 of the National Electricity Rules:
Units: DPNTBG1, DPNTBL1
Aggregate Dispatch Group: DPNTBESS_ADG1
Duration: 18/02/2024 14:55 to 18/02/2024 15:15
Amount: 21 MW
Constraint: NC-N_DPNTBESS_ADG1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Saturday, 17 February 2024
NON-CONFORMANCE QLD1 Region Saturday, 17 February 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: MPP_1
Duration: 17/02/2024 15:25 to 17/02/2024 15:35
Amount: -19 MW
Constraint: NC-Q_MPP_1
Auto-generated on behalf of Manager NEM Real Time Operations
Short Notice Outage - Directlink - NSW Region - 16 February 2024
Short Notice Outage - Directlink - NSW Region - 16 February 2024
A short notice outage of Directlink cable DC2 in the NSW Region.
Constraint set N-MBTE_1 invoked from 2010 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of all three legs of Directlink .
The following constraint set was invoked at 1440 hrs 16/02/2024
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Friday, 16 February 2024
NON-CONFORMANCE NSW1 Region Friday, 16 February 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BW04
Duration: 16/02/2024 01:15 to 16/02/2024 01:25
Amount: 58 MW
Constraint: NC-N_BW04
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - Moorabool Sydenham 500 kV lines - Vic region - 15/02/2024
At 1905 hrs 15/02/2024 in the Victoria region interim work was completed at Moorabool and Sydenham terminal stations to provide additional 500 kV bus ties.
As a result of this completed work the South Australia region is no longer on a credible risk of separation.
Constraint set changes.
Invoked:
V-X_MLSY_MLTS_TIE
Revoked:
F-V-X_ML_BUSTIE_500
I-VS_050
S-X_BC_CP
V-X_MLSY
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Rfer Market Notices 114577, 114768, 114686
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Thursday, 15 February 2024
NON-CONFORMANCE QLD1 Region Thursday, 15 February 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: SWAN_E
Duration: 15/02/2024 16:05 to 15/02/2024 16:20
Amount: -46 MW
Constraint: NC-Q_SWAN_E
Auto-generated on behalf of Manager NEM Real Time Operations