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Managing outages that create a credible risk of SA islanding
From 9th Oct 2024 AEMO will change constraints used during outages that create a credible risk of SA islanding.
From this date AEMO will:
1) Increase the maximum allowable flow on the V-SA interconnector from 50 MW to 250 MW in the VIC to SA direction, where the transmission outages is a planned outage.
2) Operate the SA region to the default 49-51 Hz target frequency containment band following a contingency event resulting in actual SA islanding. In order to meet this requirement, AEMO may now procure Contingency Raise FCAS locally from the SA region during these outages.
These changes reflect updated advice received by AEMO from the SA Jurisdictional System Security Coordinator.
The first network outage affected by this change is planned for 14th October 2024.
Andrew Groom
AEMO Operations
NON-CONFORMANCE Region NSW1 Tuesday, 8 October 2024
NON-CONFORMANCE NSW1 Region Tuesday, 8 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BW04
Duration: 08/10/2024 10:00 to 08/10/2024 10:05
Amount: -37 MW
Constraint: NC-N_BW04
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region VIC1 Monday, 7 October 2024
NON-CONFORMANCE VIC1 Region Monday, 7 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: STOCKYD1
Duration: 07/10/2024 13:25 to 07/10/2024 15:10
Amount: 62 MW
Constraint: NC-V_STOCKYD1
Auto-generated on behalf of Manager NEM Real Time Operations
STPASA - Forecast Minimum System Load 1 (MSL1) in the VIC Region on 12/10/2024
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1200 hrs 12/10/2024 to 1400 hrs 12/10/2024.
Minimum regional demand is forecast to be 1646 MW at 1300 hrs, and the advisory threshold is:
o MSL1 - 1815 MW
o MSL2 - 1315 MW
o MSL3 - 815 MW
MSL events are forecast when forecast regional demand is less than the relevant MSL threshold. The forecast regional demand is below the MSL1 threshold.
AEMO Operations
STPASA - Forecast Minimum System Load 1 (MSL1) in the VIC Region on 13/10/2024
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1100 hrs 13/10/2024 to 1400 hrs 13/10/2024.
Minimum regional demand is forecast to be 1623 MW at 1300 hrs, and the advisory threshold is:
o MSL1 - 1865 MW
o MSL2 - 1365 MW
o MSL3 - 865 MW
MSL events are forecast when forecast regional demand is less than the relevant MSL threshold. The forecast regional demand is below the MSL1 threshold.
AEMO Operations
NON-CONFORMANCE Region VIC1 Monday, 7 October 2024
NON-CONFORMANCE VIC1 Region Monday, 7 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: STOCKYD1
Duration: 07/10/2024 11:25 to 07/10/2024 13:10
Amount: 101 MW
Constraint: NC-V_STOCKYD1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Monday, 7 October 2024
NON-CONFORMANCE NSW1 Region Monday, 7 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WAGGNSF1
Duration: 07/10/2024 09:55 to 07/10/2024 10:15
Amount: 49 MW
Constraint: NC-N_WAGGNSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region SA1 Sunday, 6 October 2024
NON-CONFORMANCE SA1 Region Sunday, 6 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: LKBONNY2
Duration: 06/10/2024 23:05 to 06/10/2024 23:10
Amount: 73 MW
Constraint: NC-S_LKBONNY2
Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Sunday, 6 October 2024
NON-CONFORMANCE NSW1 Region Sunday, 6 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: WTAHB1
Duration: 06/10/2024 13:00 to 06/10/2024 13:25
Amount: 9 MW
Constraint: NC-N_WTAHB1
Auto-generated on behalf of Manager NEM Real Time Operations