Market Notices

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: TAS1

Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown

Cancellation time: 06/09/2024 05:19

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 118163

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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: TAS1

Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Cancellation time: 06/09/2024 05:09

Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1


Refer AEMO Electricity Market Notice 118162

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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: TAS1

Lines: Farrell-John Butters and Farrell-Rosebery-Newton-Queenstown

Duration: 06/09/2024 04:15 until further notice

Constraint set(s) invoked:
NONE

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: TAS1

Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Duration: 06/09/2024 04:07 until further notice

Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1


Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Thursday, 5 September 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: MP1
Duration: 05/09/2024 22:30 to 05/09/2024 22:35
Amount: -103 MW
Constraint: NC-N_MP1

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AEMO ELECTRICITY MARKET NOTICE

Declaration of electricity market resumption

Refer initial AEMO Electricity Market Notice 118149

AEMO declares that the suspension of the spot market in New South Wales, Queensland, South Australia, Tasmania and Victoria will end at 1510 hrs on 05 September 2024.

AEMO has taken sufficient steps to exclude the original event having influence on market processes and AEMO assesses that the possibility of suspending the spot market within the next 24 hours due to the same cause is minimal. AEMO also determines that it can operate the market in accordance with the provisions of the NER.

Relevant Market Notices issued under this suspension: 118149

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Declaration of electricity market suspension

AEMO declares the spot market suspended in New South Wales, Queensland, South Australia, Tasmania and Victoria with Market Suspension Schedule Pricing (refer NER clause 3.14.5(b)) from Trading Interval 1355 hrs on 5 September 2024 until further notice.

Dispatch prices for the first one or two dispatch intervals of this market suspension will be reviewed manually.

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 9th September AEMO will remove the 225 MW cap on dispatch of Very Fast Lower (L1) Contingency FCAS.

The 225 MW cap on dispatch of L1 FCAS sits well above typical disaptch volumes, and no immediate impact is expected from this change.

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

Inter-Regional Transfer limit variation - Directlink - NSW Region

There has been an unplanned outage of the No 1 Leg of Directlink .

The following constraint set was invoked at 0735 hrs 05/09/2024

N-MBTE_1

The constraint set contains the following interconnector on the left hand side.

N-Q-MNSP1

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

Manager NEM Real Time Operations