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69164GENERAL NOTICE08/08/2019 12:11:54 AM
Non-credible contingency event more likely to occur due to existence of abnormal conditions - SA, Vic and parts of NSW regions.
AEMO ELECTRICITY MARKET NOTICE.
The Bureau of Meteorology has issued Severe Weather Warnings for Damaging Winds in South Australia, Victoria and parts of NSW regions developing on Thursday 8/08/2019.
AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions namely severe weather in the above regions.
There is a possibility of severe weather impacting multiple transmission elements.
Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.
Manager NEM Real Time Operations
The Bureau of Meteorology has issued Severe Weather Warnings for Damaging Winds in South Australia, Victoria and parts of NSW regions developing on Thursday 8/08/2019.
AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions namely severe weather in the above regions.
There is a possibility of severe weather impacting multiple transmission elements.
Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.
Manager NEM Real Time Operations
69153GENERAL NOTICE06/08/2019 04:43:22 PM
Cancellation: Planned outage of Moorabool - Tarrone 500 kV line in the Victoria region on 15,16,17,18 and 19 August 2019.
AEMO ELECTRICITY MARKET NOTICE
Cancellation: The planned outages of Moorabool - Tarrone 500 kV line in the Victoria (VIC) region on 15,16,17,18 and 19 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 69007
The Moorabool - Tarrone 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 08/08/2019
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Mya San
AEMO Operations
Cancellation: The planned outages of Moorabool - Tarrone 500 kV line in the Victoria (VIC) region on 15,16,17,18 and 19 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 69007
The Moorabool - Tarrone 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 08/08/2019
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Mya San
AEMO Operations
69151GENERAL NOTICE06/08/2019 02:48:09 PM
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 9,10,11,12,13 and 14 August 2019 have been changed.
AEMO ELECTRICITY MARKET NOTICE
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 9,10,11,12,13 and 14 August 2019 have been changed.
Refer AEMO Electricity Market Notice 69147.
Moorabool - Mortlake 500 kV line outages on 9,10,11,12,13 and 14 August 2019 are now planned to be out of service from 0630 hrs (previous 0700 hrs) to 1800 hrs (previous 1830 hrs).
Margarete Ting
AEMO Operations
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 9,10,11,12,13 and 14 August 2019 have been changed.
Refer AEMO Electricity Market Notice 69147.
Moorabool - Mortlake 500 kV line outages on 9,10,11,12,13 and 14 August 2019 are now planned to be out of service from 0630 hrs (previous 0700 hrs) to 1800 hrs (previous 1830 hrs).
Margarete Ting
AEMO Operations
69147GENERAL NOTICE06/08/2019 10:02:06 AM
Outage time update: Planned outage of Moorabool - Mortlake 500 kV line in the Victoria region on 9,10,11,12,13 and 14 August 2019.
AEMO ELECTRICITY MARKET NOTICE
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 9,10,11,12,13 and 14 August 2019 have been changed.
Refer AEMO Electricity Market Notice 68893 and 69138
Moorabool - Mortlake 500 kV line outages on 9,10,11,12,13 and 14 August 2019 are now planned to be out of service from 0700 hrs (previous 0630 hrs) to 1830 hrs (previous 1800 hrs).
Margarete Ting
AEMO Operations
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 9,10,11,12,13 and 14 August 2019 have been changed.
Refer AEMO Electricity Market Notice 68893 and 69138
Moorabool - Mortlake 500 kV line outages on 9,10,11,12,13 and 14 August 2019 are now planned to be out of service from 0700 hrs (previous 0630 hrs) to 1830 hrs (previous 1800 hrs).
Margarete Ting
AEMO Operations
69140GENERAL NOTICE02/08/2019 12:38:56 PM
Cancellation - Planned outage of Moorabool - Mortlake 500 kV line in VIC region on 6 and 7 August 2019
AEMO ELECTRICITY MARKET NOTICE
Cancellation: The planned outages of Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 6 and 7 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 69138.
The Moorabool - Mortlake 500 kV line in the VIC region was planned to be out of service from 0600 hrs to 1700 hrs on 06/08/2019 and 07/08/2019.
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Danushka Sooriyadasa
AEMO Operations
Cancellation: The planned outages of Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 6 and 7 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 69138.
The Moorabool - Mortlake 500 kV line in the VIC region was planned to be out of service from 0600 hrs to 1700 hrs on 06/08/2019 and 07/08/2019.
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Danushka Sooriyadasa
AEMO Operations
69138GENERAL NOTICE01/08/2019 11:11:49 AM
Outage time update: Planned outage of Moorabool - Mortlake 500 kV line in the Victoria region on 6,7,9,10,11,12,13 and 14 August 2019.
AEMO ELECTRICITY MARKET NOTICE
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 6,7,9,10,11,12,13 and 14 August 2019 have been changed.
Refer AEMO Electricity Market Notice 68893
Moorabool - Mortlake 500 kV line outages on 6 and 7 August 2019 are now planned to be out of service from 06:00 hrs (previous 0700 hrs) to 1700 hrs (previous 1700 hrs).
Moorabool - Mortlake 500 kV line outages on 9,10,11,12,13 and 14 August 2019 are now planned to be out of service from 0630 hrs (previous 0700 hrs) to 1800 hrs (previous 1700 hrs).
Mya San
AEMO Operations
Outage time update: The outage duration for Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 6,7,9,10,11,12,13 and 14 August 2019 have been changed.
Refer AEMO Electricity Market Notice 68893
Moorabool - Mortlake 500 kV line outages on 6 and 7 August 2019 are now planned to be out of service from 06:00 hrs (previous 0700 hrs) to 1700 hrs (previous 1700 hrs).
Moorabool - Mortlake 500 kV line outages on 9,10,11,12,13 and 14 August 2019 are now planned to be out of service from 0630 hrs (previous 0700 hrs) to 1800 hrs (previous 1700 hrs).
Mya San
AEMO Operations
69137GENERAL NOTICE01/08/2019 10:53:00 AM
Cancellation: Planned outage of Moorabool - Mortlake 500 kV line in the Victoria region on 8 August 2019.
AEMO ELECTRICITY MARKET NOTICE
Cancellation: The planned outages of Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 8 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 68893
The Moorabool - Mortlake 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 08/08/2019
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Mya San
AEMO Operations
Cancellation: The planned outages of Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 8 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 68893
The Moorabool - Mortlake 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 08/08/2019
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Mya San
AEMO Operations
69131GENERAL NOTICE30/07/2019 04:43:53 PM
Cancellation: Planned outage of Moorabool - Mortlake 500 kV line in the Victoria region on 2, 3, 4 and 5 August 2019.
AEMO ELECTRICITY MARKET NOTICE
Cancellation: The planned outages of Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 2, 3, 4 and 5 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 69003 and 68893.
The Moorabool - Mortlake 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 02/08/2019, 03/08/2019, 04/08/2019 and 05/08/2019.
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Manish Bhaskar
AEMO Operations
Cancellation: The planned outages of Moorabool - Mortlake 500 kV line in the Victoria (VIC) region on 2, 3, 4 and 5 August 2019 have been cancelled.
Refer AEMO Electricity Market Notice 69003 and 68893.
The Moorabool - Mortlake 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 02/08/2019, 03/08/2019, 04/08/2019 and 05/08/2019.
The planned outages have been cancelled.
All constraint sets associated with the outages have been revoked.
Manish Bhaskar
AEMO Operations
69129GENERAL NOTICE29/07/2019 10:23:56 AM
Daily planned outage of Heywood -Tarrone 500 kV line in the Victoria region on 23rd and 26th September 2019
AEMO ELECTRICITY MARKET NOTICE
The Heywood -Tarrone 500 kV line in the Victoria (VIC) region is planned to be out of service daily from 0700 hrs to 1700 hrs on the following days:
-23/09/2019
-26/09/2019
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM. If separation occurs, load may be interrupted due to the operation of the Automatic Under Frequency Load Shedding (AUFLS) scheme in SA.
The credible separation contingency is managed as follows:
- When power transfer is from SA to Victoria, contingency lower FCAS will be sourced from SA.
- When power transfer is from Victoria to SA, due to the 47-52Hz island separation frequency band advised by the SA jurisdiction, contingency raise FCAS is not sourced in SA and the AUFLS scheme may respond to low frequency events.
-Power transfer will be restricted sufficiently low on Victoria - South Australia interconnector (Heywood interconnector) to manage system security following the loss of the next contingency.
Forecast capacity reserves in the SA region are currently sufficient to meet electricity demand during the planned outage.
The following constraint sets have been invoked for this outage:
F-V-HYTR
I-VS_050
S-X_BC_CP
V-HYTR
Refer AEMO Network Outage Schedule (NOS) for further details.
Mya San
AEMO Operations
The Heywood -Tarrone 500 kV line in the Victoria (VIC) region is planned to be out of service daily from 0700 hrs to 1700 hrs on the following days:
-23/09/2019
-26/09/2019
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM. If separation occurs, load may be interrupted due to the operation of the Automatic Under Frequency Load Shedding (AUFLS) scheme in SA.
The credible separation contingency is managed as follows:
- When power transfer is from SA to Victoria, contingency lower FCAS will be sourced from SA.
- When power transfer is from Victoria to SA, due to the 47-52Hz island separation frequency band advised by the SA jurisdiction, contingency raise FCAS is not sourced in SA and the AUFLS scheme may respond to low frequency events.
-Power transfer will be restricted sufficiently low on Victoria - South Australia interconnector (Heywood interconnector) to manage system security following the loss of the next contingency.
Forecast capacity reserves in the SA region are currently sufficient to meet electricity demand during the planned outage.
The following constraint sets have been invoked for this outage:
F-V-HYTR
I-VS_050
S-X_BC_CP
V-HYTR
Refer AEMO Network Outage Schedule (NOS) for further details.
Mya San
AEMO Operations