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118672CONSTRAINTS08/10/2024 01:13:36 PM
Managing outages that create a credible risk of SA islanding
AEMO ELECTRICITY MARKET NOTICE
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
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
118646MINIMUM SYSTEM LOAD07/10/2024 02:48:08 PM
STPASA - Forecast Minimum System Load 1 (MSL1) in the VIC Region on 12/10/2024
AEMO ELECTRICITY MARKET NOTICE
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
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
118645MINIMUM SYSTEM LOAD07/10/2024 02:49:02 PM
STPASA - Forecast Minimum System Load 1 (MSL1) in the VIC Region on 13/10/2024
AEMO ELECTRICITY MARKET NOTICE
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
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
118528GENERAL NOTICE30/09/2024 09:20:28 AM
Heywood testing (SA to Vic) 30th September 2024
AEMO ELECTRICITY MARKET NOTICE
There is an opportunity for testing Heywood Interconnector (HIC) flow from South Australia to Victoria above 450MW and Victoria to South Australia above 450MW on 30th September from 9:00hrs to 17:00hrs
This test includes a trip and reclose of a line in South Australia.
Please also refer to the published formal PEC Stage 1 and HIC capacity release testing information at the following link https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.
Ben Blake
AEMO Operations
There is an opportunity for testing Heywood Interconnector (HIC) flow from South Australia to Victoria above 450MW and Victoria to South Australia above 450MW on 30th September from 9:00hrs to 17:00hrs
This test includes a trip and reclose of a line in South Australia.
Please also refer to the published formal PEC Stage 1 and HIC capacity release testing information at the following link https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic---final-test-program.pdf?la=en.
Ben Blake
AEMO Operations
118493MINIMUM SYSTEM LOAD28/09/2024 02:30:26 PM
Cancellation - MSL1- VIC Region at 1430 hrs 28/09/2024.
AEMO ELECTRICITY MARKET NOTICE
Cancellation - MSL1- VIC Region at 1430 hrs 28/09/2024.
Refer to Market Notice 118475.
Manager NEM Real Time Operations
Cancellation - MSL1- VIC Region at 1430 hrs 28/09/2024.
Refer to Market Notice 118475.
Manager NEM Real Time Operations
118489GENERAL NOTICE27/09/2024 09:51:41 PM
Network Augmentation Commissioned - NSW Region - 27/09/2024
AEMO ELECTRICITY MARKET NOTICE
A network augmentation has been commissioned in the NSW region at 2150 hrs 27/09/2024 as follows:
Walla Walla substation has been cut into the existing Wagga - Jinderra (62) 330 kV line to form the following circuits:
Jinderra - Walla Walla 62 330 kV Transmission Line
Walla Walla - Wagga 6Y 330 kV Transmission Line
Manager NEM Real Time Operations
A network augmentation has been commissioned in the NSW region at 2150 hrs 27/09/2024 as follows:
Walla Walla substation has been cut into the existing Wagga - Jinderra (62) 330 kV line to form the following circuits:
Jinderra - Walla Walla 62 330 kV Transmission Line
Walla Walla - Wagga 6Y 330 kV Transmission Line
Manager NEM Real Time Operations
118483MINIMUM SYSTEM LOAD27/09/2024 03:35:11 PM
Cancellation - MSL1- VIC Region at 1530 hrs 27/09/2024.
AEMO ELECTRICITY MARKET NOTICE
Cancellation - MSL1- VIC Region at 1530 hrs 27/09/2024.
Refer to Market Notice 118442 for MSL1.
Manager NEM Real Time Operations
Cancellation - MSL1- VIC Region at 1530 hrs 27/09/2024.
Refer to Market Notice 118442 for MSL1.
Manager NEM Real Time Operations
118475MINIMUM SYSTEM LOAD27/09/2024 10:55:57 AM
Minimum System Load 1 (MSL1) in the VIC Region on 28/09/2024
AEMO ELECTRICITY MARKET NOTICE
Update to Market Notice 118421.
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1030 hrs to 1430 hrs 28/09/2024.
Minimum regional demand is forecast to be 1420 MW at 1200 hrs, and the advisory threshold is:
- MSL1 - 1865 MW
- MSL2 - 1365 MW
- 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.
Refer to NEM Data Dashboard to monitor demand levels: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in Victoria. This may result in action such as the direction of scheduled production units, curtailment of non-scheduled production units, and/or a direction to maintain regional demand above required MSL threshold, in both Victoria and South Australia.
AEMO Operations
Update to Market Notice 118421.
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1030 hrs to 1430 hrs 28/09/2024.
Minimum regional demand is forecast to be 1420 MW at 1200 hrs, and the advisory threshold is:
- MSL1 - 1865 MW
- MSL2 - 1365 MW
- 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.
Refer to NEM Data Dashboard to monitor demand levels: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in Victoria. This may result in action such as the direction of scheduled production units, curtailment of non-scheduled production units, and/or a direction to maintain regional demand above required MSL threshold, in both Victoria and South Australia.
AEMO Operations
118474RESERVE NOTICE26/09/2024 08:01:21 PM
Cancellation of Actual (LOR1) condition in the NSW region - 26/09/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR1) condition in the NSW region - 26/09/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.118473 is cancelled at 2000 hrs 26/09/2024.
Manager NEM Real Time Operations
Cancellation of Actual (LOR1) condition in the NSW region - 26/09/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.118473 is cancelled at 2000 hrs 26/09/2024.
Manager NEM Real Time Operations