Market Notices

AEMO ELECTRICITY MARKET NOTICE

The Moorabool - Mortlake PS 500 kV line in the Victoria (VIC) region is planned to be out of service from 0630 hrs to 1800 hrs on 25 August 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 VIC, contingency lower FCAS will be sourced from SA;
- When power transfer is from VIC 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; and
- Power transfer will be restricted on VIC - SA 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:
S-X_BC_CP
V-MLMO

Refer AEMO Network Outage Schedule (NOS) for further details.

Manish Bhaskar
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation: The planned outages of Heywood - Mortlake PS 500 kV line in the Victoria (VIC) region on 28 August 2019 have been cancelled.

Refer AEMO Electricity Market Notices 69126.

The Moorabool - Mortlake PS 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 28 August 2019.


This planned outage has been cancelled.

All constraint sets associated with these outages have been revoked.

Mya San
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Moorabool - Mortlake PS 500 kV line in the Victoria (VIC) region is planned to be out of service from 0630 hrs to 1800 hrs on the following dates:

-17/09/2019
-18/09/2019
-19/09/2019


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 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:

S-X_BC_CP
V-MLMO

Refer AEMO Network Outage Schedule (NOS) for further details.

Mya San
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Moorabool - Mortlake 500 kV line in the Victoria (VIC) region is planned to be out of service from 0630 hrs to 1800 hrs on 24 August 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 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:

S-X_BC_CP
V-MLMO

Refer AEMO Network Outage Schedule (NOS) for further details.

Danushka Sooriyadasa
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Moorabool - Tarrone 500 kV line in the Victoria (VIC) region is planned to be out of service from 0630 hrs to 1800 hrs on the following dates:

-26/09/2019
-27/09/2019
-28/09/2019
-29/09/2019
-30/09/2019
-01/10/2019
-02/10/2019
-03/10/2019
-04/10/2019
-05/10/2019
-06/10/2019
-07/10/2019
-08/10/2019

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 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:
I-VS_050
S-X_BC_CP
V-MLTR

Refer AEMO Network Outage Schedule (NOS) for further details.

Mya San
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Moorabool - Mortlake PS 500 kV line in the Victoria (VIC) region is planned to be out of service from 0630 hrs to 1800 hrs on the following dates:

-15/09/2019
-16/09/2019
-20/09/2019
-21/09/2019
-22/09/2019
-23/09/2019
-24/09/2019
-25/09/2019

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 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:

S-X_BC_CP
V-MLMO

Refer AEMO Network Outage Schedule (NOS) for further details.

Mya San
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation: The planned outages of Heywood - Tarrone 500 kV line in the Victoria (VIC) region on 27 August and 23 September 2019 have been cancelled.

Refer AEMO Electricity Market Notices 69007 and 69129.

The Moorabool - Tarrone 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on 27 August and 23 September 2019.


These planned outages have been cancelled.

All constraint sets associated with these outages have been revoked.

Mya San
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation: The planned outages of Moorabool - Tarrone 500 kV line in the Victoria (VIC) region on 24,25,26,27 August and 05,06,09,10,11 September 2019 . have been cancelled.

Refer AEMO Electricity Market Notices 69007 and 69128.

The Moorabool - Tarrone 500 kV line in the VIC region was planned to be out of service from 0700 hrs to 1700 hrs on the following dates:

-24/08/2019
-25/08/2019
-26/08/2019
-27/08/2019
-05/09/2019
-06/09/2019
-09/09/2019
-10/09/2019
-11/09/2019

These planned outages have been cancelled.

All constraint sets associated with these outages have been revoked.

Mya San
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

The Heywood - Tarrone 500 kV line in the Victoria (VIC) region is planned to be out of service from 0700 hrs to 1700 hrs on 17 August 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 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:

I-VS_050
S-X_BC_CP
V-HYTR

Refer AEMO Network Outage Schedule (NOS) for further details.

Danushka Sooriyadasa
AEMO Operations