Market Notices

100722GENERAL NOTICE02/08/2022 11:46:36 PM

Cancellation : Non-credible contingency event more likely to occur due to existence of abnormal condition/s - SA region.

AEMO ELECTRICITY MARKET NOTICE.

Abnormal conditions advised in AEMO Electricity Market Notice 100689 have ceased to impact the likelihood of a non-credible event occurring as at 2350 hrs 02/08/2022

Manager NEM Real Time Operations
     
100689GENERAL NOTICE02/08/2022 06:15:49 PM

Non-credible contingency event more likely to occur due to existence of abnormal condition/s - SA region.

AEMO ELECTRICITY MARKET NOTICE.

AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions namely severe weather and damaging winds in the SA region.

As at the time of this notice the criteria for reclassification of any non-credible contingency event have been met and there is a possibility of severe weather impacting multiple transmission elements in its vicinity.

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.

Constraint set I-VS_250 invoked at 1820 hrs 02/08/2022 until further notice.

Manager NEM Real Time Operations
     
100687GENERAL NOTICE02/08/2022 05:07:08 PM

Cancellation : Non-credible contingency event more likely to occur due to existence of abnormal condition/s - SA region.

AEMO ELECTRICITY MARKET NOTICE.


Abnormal conditions advised in AEMO Electricity Market Notice 100681 have ceased to impact the likelihood of a non-credible event occurring as at 1710 hrs 02/08/2022

Manager NEM Real Time Operations
     
100681GENERAL NOTICE02/08/2022 02:10:17 PM

Non-credible contingency event more likely to occur due to existence of abnormal condition/s - SA region.

AEMO ELECTRICITY MARKET NOTICE.

AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions namely severe weather and damaging winds in the SA region.

As at the time of this notice the criteria for reclassification of any non-credible contingency event have been met and there is a possibility of severe weather impacting multiple transmission elements in its vicinity.

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.

Constraint set I-VS_250 invoked at 1410 hrs 02/08/2022 until further notice.

Manager NEM Real Time Operations
     
100431GENERAL NOTICE22/07/2022 12:08:52 PM

Network Augmentation Commissioned - Vic Region - 22/07/2022

Network Augmentation Commissioned - Vic Region - 22/07/2022

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - Vic Region - 22/07/2022

The Moorabool No. 3 220 kV Reactor has been commissioned at 1200 hrs 22/07/2022.

Manager NEM Real Time Operations
     
100402GENERAL NOTICE20/07/2022 06:12:40 PM

AEMO Gas Supply Shortfall Outcome Notification - 19 July 2022

AEMO Gas Supply Shortfall Outcome Notification - 19 July 2022

AEMO has determined that this gas supply shortfall trigger event applies from 19 July 2022 to 30 September 2022, unless the event is resolved earlier. AEMO will continue to monitor gas supply throughout this period for NEM gas powered generators in south eastern Australia.

The Gas Supply Guarantee is required, due to:

- High gas demand expected for the 19 July 2022 to 30 September 2022 period
- Impacted regions: New South Wales, Victoria, South Australia and Tasmania
- NEM gas generation demand has significantly increased gas demand in south eastern Australia over the last few months. For comparison:
o NSW gas generation (year to date) in 2022 is 15 PJ versus 5 PJ in 2021; and
o VIC gas generation (year to date) in 2022 is 14 PJ versus 7 PJ in 2021.
- Increased gas generation demand is depleting Iona storage inventory at an unsustainable rate. Iona storage is critical to maintaining gas supplies on peak gas demand days in south-east Australia. Iona withdrawals must be reduced to a sustainable rate to last the winter period.
- NEM gas powered generators have advised AEMO they cannot obtain sufficient gas supply to meet gas-powered generation demand and are needing to generate using diesel to fuel their gas generation.
- An average of an additional (approx.) 100 TJ/d of gas flows to the southern states during the period (essentially seeking to maximising flows from Wallumbilla on the SWQP pipeline to the southern states).
- LNG producers have indicated that gas can be purchased from them either via bilateral contract or from the Wallumbilla Gas Supply Hub.

AEMO will provide further updates to the market as required during this period via additional Gas Supply Shortfall notifications.

General Manager Gas RTO
     
100373GENERAL NOTICE19/07/2022 04:05:37 PM

Notification of a Potential Gas Supply Shortfall Event - 19/07/22

Notification of a Potential Gas Supply Shortfall Event - 19/07/22

AEMO has a potential gas supply shortfall event for the NSW, VIC, SA, TAS regions for GD 19/07/22 to 30/09/22.

Trigger event notification occurred at 1000 hrs EST on 19/07/22, after the DWGM Industry Conference.

The event is being triggered due to information provided by gas powered generators.

AEMO will convene a gas supply guarantee assessment conference with Members that AEMO determines will be able to contribute or respond to the potential gas supply shortfall to assess the event.

The event notice can be found here: http://nemweb.com.au/Reports/Current/Gas_Supply_Guarantee/

General Manager Gas RTO
     
100238GENERAL NOTICE13/07/2022 05:11:21 PM

Tamworth SVC commissioning testing from 14 July to 27 July 2022

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 99740

As a part of the QNI minor augmentation commissioning testing on the Tamworth SVC will commence tomorrow 14 July 2022.

This testing will continue from 14 July 2022 through to 27 July 2022.

There will be no change to the power system limits/constraints as a part of this testing. Changes to limits will occur with the formal QNI minor testing as detailed here: https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations
     
99740GENERAL NOTICE28/06/2022 04:21:09 PM

Dumaresq SVC commissioning testing from 28 June to 8 July 2022

AEMO ELECTRICITY MARKET NOTICE

As a part of the QNI minor augmentation commissioning testing on the Dumaresq SVC has commenced.

This testing will continue from 28 June 2022 through to 8 July 2022.

There will be no change to the power system limits/constraints as a part of this testing. Changes to limits will occur with the formal QNI minor testing as detailed here: https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade

Ben Blake
AEMO Operations
     
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