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120306POWER SYSTEM EVENTS12/11/2024 11:43:52 AM
Update - Non-credible contingency event - VIC region - 12/11/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - VIC region - 12/11/2024
Refer AEMO Electricity Market Notice 120305
At 1135 hrs the Yallourn No 1 220 kV bus was returned 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 - VIC region - 12/11/2024
Refer AEMO Electricity Market Notice 120305
At 1135 hrs the Yallourn No 1 220 kV bus was returned 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
120305POWER SYSTEM EVENTS12/11/2024 10:55:18 AM
Non-credible contingency event - VIC region - 12/11/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 12/11/2024
At 1041 hrs the Yallourn No 1 220 kV bus and Yallourn Unit 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 - VIC region - 12/11/2024
At 1041 hrs the Yallourn No 1 220 kV bus and Yallourn Unit 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
120276GENERAL NOTICE11/11/2024 05:07:24 PM
Project Energy Connect (PEC-1) testing 12th November 2024 for flows in both directions
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 120016
There is an opportunity for testing Project Energy Connect (PEC-1) for flows in both directions up to 50 MW on 12th November from 06:00hrs to 11:00hrs
This test includes the synchronization of the new PEC Stage 1 interconnector and testing of the Phase Shifting transformer at Buronga substation.
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
Refer to market notice 120016
There is an opportunity for testing Project Energy Connect (PEC-1) for flows in both directions up to 50 MW on 12th November from 06:00hrs to 11:00hrs
This test includes the synchronization of the new PEC Stage 1 interconnector and testing of the Phase Shifting transformer at Buronga substation.
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
120253INTER-REGIONAL TRANSFER11/11/2024 01:31:43 PM
Inter-regional transfer limit variation - Bungama - Davenport 275 kV line - SA region - 11/11/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Bungama - Davenport 275 kV line - SA region - 11/11/2024
At 1307 hrs 11/11/2024 there was an unplanned outage of the Bungama - Davenport 275 kV line.
The following constraint set invoked at 1315 hrs 11/11/2024
S-BGDV
This constraint sets contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Bungama - Davenport 275 kV line - SA region - 11/11/2024
At 1307 hrs 11/11/2024 there was an unplanned outage of the Bungama - Davenport 275 kV line.
The following constraint set invoked at 1315 hrs 11/11/2024
S-BGDV
This constraint sets contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
120099MINIMUM SYSTEM LOAD07/11/2024 03:11:35 PM
Cancellation - Forecast Minimum System Load 1 (MSL1) condition in the VIC Region on 10/11/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 07/11/2024.
Refer to Market Notice 119996 for Forecast MSL1.
AEMO Operations
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 07/11/2024.
Refer to Market Notice 119996 for Forecast MSL1.
AEMO Operations
120016GENERAL NOTICE06/11/2024 04:57:21 PM
Cancellation of Project Energy Connect (PEC-1) testing on 6th November 2024
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 119963
The Project Energy Connect (PEC-1) testing on 6th November has now been cancelled.
Terry Liu
AEMO Operations
Refer to market notice 119963
The Project Energy Connect (PEC-1) testing on 6th November has now been cancelled.
Terry Liu
AEMO Operations
119996MINIMUM SYSTEM LOAD06/11/2024 03:44:08 PM
Forecast Minimum System Load 1 (MSL1) condition in the VIC region on 10/11/2024
AEMO ELECTRICITY MARKET NOTICE
Update to Market Notice 119920 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 10/11/2024.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1745 MW
o MSL2 - 1245 MW
o MSL3 - 745 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
1. From 1230 hrs to 1330 hrs 10/11/2024. Minimum regional demand is forecast to be 1719 MW at 1300 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations
Update to Market Notice 119920 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 10/11/2024.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1745 MW
o MSL2 - 1245 MW
o MSL3 - 745 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
1. From 1230 hrs to 1330 hrs 10/11/2024. Minimum regional demand is forecast to be 1719 MW at 1300 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations
119995MINIMUM SYSTEM LOAD06/11/2024 03:45:53 PM
Cancellation - Forecast Minimum System Load 1 (MSL1) condition in the VIC Region on 09/11/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 06/11/2024.
Refer to Market Notice 119866 for Forecast MSL1.
AEMO Operations
Cancellation - Forecast MSL1 - VIC Region at 1400 hrs 06/11/2024.
Refer to Market Notice 119866 for Forecast MSL1.
AEMO Operations
119963GENERAL NOTICE06/11/2024 11:27:15 AM
Correction to testing time for Project Energy Connect (PEC-1) 6th November 2024 for flows in both directions
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 119961
This is correction to Project Energy Connect (PEC-1) testing time issued in previous notice 119961.
Testing time is on 6th November from 11:00 hrs to 22:00 hrs.
The test is for flows in both directions up to 50 MW. 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.
Mya San
AEMO Operations
Refer to market notice 119961
This is correction to Project Energy Connect (PEC-1) testing time issued in previous notice 119961.
Testing time is on 6th November from 11:00 hrs to 22:00 hrs.
The test is for flows in both directions up to 50 MW. 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.
Mya San
AEMO Operations