Market Notices

112320GENERAL NOTICE14/12/2023 02:04:02 PM

Update - Vulnerbale lines - SA region

AEMO ELECTRICITY MARKET NOTICE.

Vulnerable lines in SA region.

[Special Reclassification of Transmission Lines during lightning]


Refer to AEMO Electricity Market Notices 111818


At 1350 28/11/2023 hrs Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers were reclassified due to the elements tripping at 0534 hrs 28/11/2023

The cause of trip was identified as due to lightning.

In accordance with SO_OP_3715, AEMO now considers the following elements to be vulnerable due to lightning.


Elements: Tungkillo- Robertstown No.1 and No.2 275kV lines and the Robertstown No.1 and No.2 synchronous condensers.


Manager NEM Real Time Operations
112301GENERAL NOTICE14/12/2023 10:57:26 AM

NEM Local Temperature Alerts for VIC from 14 Dec 2023 to 18 Dec 2023

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

VIC
Mildura Ap (39+ Deg C): 18th Dec

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
112262GENERAL NOTICE13/12/2023 05:42:21 PM

Update - Vulnerable lines in TAS region.

AEMO ELECTRICITY MARKET NOTICE.

Vulnerable lines in TAS region.

Refer to AEMO Electricity Market Notice 112248.

At 1324 hrs 13/12/2023 the Hadspen - Palmerston No.3 & No.4 110 kV lines tripped and auto reclosed.

The cause of trip was identified as due to lightning.

In accordance with SO_OP_3715, AEMO now considers the Hadspen - Palmerston No.3 & No.4 110 kV lines to be vulnerable with a category of probable due to lightning.

Manager NEM Real Time Operations
112247POWER SYSTEM EVENTS13/12/2023 01:43:17 PM

Non-credible contingency event - TAS region - 13/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 13/12/2023

At 1324 hrs the Hadspen - Palmerston No.3 & No.4 110 kV lines 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
112239GENERAL NOTICE13/12/2023 12:29:31 PM

Fast Frequency Response Market - Increase in R1 FCAS volume 18 December 2023.

AEMO ELECTRICITY MARKET NOTICE

Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 18 December AEMO will:

Increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 175 MW to 225 MW

Retain the existing cap on dispatch of Very Fast Lower (L1) Contingency FCAS at 100 MW

No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date

For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response

Andrew Groom
AEMO Operations
112223GENERAL NOTICE13/12/2023 10:49:32 AM

NEM Local Temperature Alerts for QLD from 13 Dec 2023 to 17 Dec 2023

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

QLD
Dalby Ap (37+ Deg C): 17th Dec

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
112215GENERAL NOTICE12/12/2023 11:11:25 PM

Network Augmentation Commissioned - SA Region - 12/12/2023

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - SA Region - 12/12/2023

Commissioned: Robertstown - Bundey No. 2 275 kV Line

Manager NEM Real Time Operations
112187POWER SYSTEM EVENTS11/12/2023 04:04:48 PM

Update - Non-credible contingency event - SA region - 11/12/2023

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - SA region - 11/12/2023

Refer AEMO Electricity Market Notice 112181

At 1554 hrs the remaining Mintaro - Waterloo 132 kV Line was returned to service.

The following constraint set(s) revoked:
S-X-MNWT+CB

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
112172GENERAL NOTICE11/12/2023 11:08:03 AM

NEM Local Temperature Alerts for VIC from 11 Dec 2023 to 15 Dec 2023

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

VIC
Mildura Ap (39+ Deg C): 12th Dec

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
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