Market Notices

AEMO ELECTRICITY MARKET NOTICE
Update to Market Notice 119682 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 05/11/2024.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1535 MW
o MSL2 - 1035 MW
o MSL3 - 535 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:

From 1000 hrs to 1430 hrs 05/11/2024. Minimum regional demand is forecast to be 1106 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

AEMO ELECTRICITY MARKET NOTICE
Update to Market Notice 119644 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 02/11/2024.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1685 MW
o MSL2 - 1185 MW
o MSL3 - 685 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:

From 1030 hrs to 1400 hrs 02/11/2024. Minimum regional demand is forecast to be 1304 MW at 1230 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

AEMO ELECTRICITY MARKET NOTICE
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 03/11/2024.

Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1795 MW
o MSL2 - 1295 MW
o MSL3 - 795 MW

The regional demand is forecast to be below the MSL1 threshold for the following period:

From 1130 hrs to 1330 hrs 03/11/2024. Minimum regional demand is forecast to be 1684 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

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 31/10/2024 16:19

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 119704

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 31/10/2024 15:15 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - NSW Region - 31/10/2024

At 1200 hrs 31/10/2024, the Buronga No.4 330kV synchronous condenser has been commissioned.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 4th November AEMO will increase the cap on dispatch of Very Fast Raise (R1) Contingency FCAS from 350 MW to 375 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

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 31/10/2024

Refer AEMO Electricity Market Notice 119689

At 0345 hrs the Wagga B 330 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

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 31/10/2024

At 0028 hrs the Wagga B 330 kV bus tripped which offloaded the Wagga - Walla Walla SF 6Y 330 kV line and Wagga No.3 transformer.

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