Market Notices

118323CONSTRAINTS19/09/2024 04:20:22 PM

Update to system normal constraint equation in NSW for transient voltage stability in south-west NSW

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 92840.

Transgrid has advised AEMO of an update to the transient voltage stability limit in south-west NSW for loss of Darlington Point to Wagga (63) 330 kV line. The limit will include terms for the Darlington Point and Riverina BESS.

The following constraint equation will be updated with the above changes at 1100 hrs Friday 20th September 2024.
N::N_NIL_63

For full details on the formulation, the new constraint equation has now been loaded into AEMO's pre-production systems.

For further details on these constraint equation please contact ben.blake@aemo.com.au

Ben Blake
AEMO Operations
     
118322POWER SYSTEM EVENTS19/09/2024 04:16:27 PM

Update - Non-credible contingency event - TAS region - 19/09/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - TAS region - 19/09/2024

Refer AEMO Electricity Market Notice 118321

At 1446 hrs the Gordon - Chapel St No 1 and No 2 220 kV lines were returned to service.

This non-credible contingency event was caused by lightning. 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.


Manager NEM Real Time Operations
     
118321POWER SYSTEM EVENTS19/09/2024 03:28:41 PM

Update - Non-credible contingency event - TAS region - 19/09/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - TAS region - 19/09/2024

At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.

AEMO did not instruct load shedding.

AEMO has advised of approximately 112 MW disconnection of bulk electrical load,
disconnection of generation at Studland Bay Wind generator (71 MW) and 23 MW generation reduction at Gordon Power station.

The cause of this non credible contingency event is not known at this stage.

Manager NEM Real Time Operations
     
118320POWER SYSTEM EVENTS19/09/2024 01:54:59 PM

Non-credible contingency event - TAS region - 19/09/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - TAS region - 19/09/2024

At 1340 hrs the Gordon - Chapel St No1 and No 2 220 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
     
118239PRICES UNCHANGED11/09/2024 01:30:31 PM

[EventId:202409111305_confirmed] Prices for interval 11-Sep-2024 13:05 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1325 hrs on 11 September 2024

PRICES ARE NOW CONFIRMED for trading interval 11-Sep-2024 13:05.

In accordance with Market Notice 118228 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
     
118238PRICES UNCHANGED11/09/2024 01:29:26 PM

[EventId:202409111325_confirmed] Prices for interval 11-Sep-2024 13:25 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1325 hrs on 11 September 2024

PRICES ARE NOW CONFIRMED for trading interval 11-Sep-2024 13:25.

In accordance with Market Notice 118233 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
     
118237PRICES UNCHANGED11/09/2024 01:28:27 PM

[EventId:202409111320_confirmed] Prices for interval 11-Sep-2024 13:20 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1325 hrs on 11 September 2024

PRICES ARE NOW CONFIRMED for trading interval 11-Sep-2024 13:20.

In accordance with Market Notice 118232 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
     
118236PRICES UNCHANGED11/09/2024 01:27:28 PM

[EventId:202409111315_confirmed] Prices for interval 11-Sep-2024 13:15 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1325 hrs on 11 September 2024

PRICES ARE NOW CONFIRMED for trading interval 11-Sep-2024 13:15.

In accordance with Market Notice 118230 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
     
118235PRICES UNCHANGED11/09/2024 01:26:25 PM

[EventId:202409111310_confirmed] Prices for interval 11-Sep-2024 13:10 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1325 hrs on 11 September 2024

PRICES ARE NOW CONFIRMED for trading interval 11-Sep-2024 13:10.

In accordance with Market Notice 118229 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
     
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