Market Notices

106725RESERVE NOTICE16/03/2023 06:58:16 PM

Cancellation of Actual (LOR2) condition in the QLD region - 16/03/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR2) condition in the QLD region - 16/03/2023

The Actual LOR2 Condition in the QLD Region advised in AEMO Electricity Market Notice No.106719 is cancelled at 1855hrs 16/03/2023

Manager NEM Real Time Operations
106719RESERVE NOTICE16/03/2023 05:56:25 PM

Actual Lack Of Reserve Level 2 (LOR2) in the QLD Region on 16/03/2023

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 2 (LOR2) in the QLD region - 16/03/2023

An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1730 hrs.

The Actual LOR2 condition is forecast to exist until 1800 hrs.

The forecast capacity reserve requirement is 560 MW.
The minimum capacity reserve available is 531 MW.

AEMO is seeking an immediate market response.

An insufficient market response may require AEMO to implement an AEMO intervention event.

Manager NEM Real Time Operations
106716RESERVE NOTICE16/03/2023 05:54:35 PM

Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 16/03/2023

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 16/03/2023

An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1750 hrs.
The Actual LOR2 condition is forecast to exist until 1830 hrs.

The forecast capacity reserve requirement is 700 MW.
The minimum capacity reserve available is 372 MW.

AEMO is seeking an immediate market response.

An insufficient market response may require AEMO to implement a AEMO intervention event.

Manager NEM Real Time Operations
106643CONSTRAINTS15/03/2023 12:39:32 PM

Updated NSW system normal voltage stability limit

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 105936?

The Murraylink Very Fast Runback (VFRB) scheme was modified to increase the capacity of the network due to the increase in generation in the area. The scheme was changed so Murraylink VFRB could be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.?

Transgrid has advised AEMO on a revision to the X5 voltage collapse limit with this change to VFRB. This will now be managed by two limits.?

The following constraint equation changes will be implemented at 0900 hrs on Thursday 16th March 2023:
N^^N_NIL_X5_BEKG (replaces N^^N_NIL_3)
N^^N_NIL_X5_BESH (new)?

For full details on the factors on constraint equations and all the constraint equation changes - these have now been loaded into AEMO's pre-production systems.?

Ben Blake
AEMO Operations

106312RESERVE NOTICE06/03/2023 06:50:22 PM

Cancellation of Actual (LOR2) condition in the NSW region - 06/03/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Actual (LOR2) condition in the NSW region - 06/03/2023

The Actual LOR2 Condition in the NSW Region advised in AEMO Electricity Market Notice No. 106310 is cancelled at 1850 hrs 06/03/2023.

Manager NEM Real Time Operations
106310RESERVE NOTICE06/03/2023 05:31:44 PM

Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 06/03/2023

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 2 (LOR2) in the NSW region - 06/03/2023

An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1700 hrs.
The Actual LOR2 condition is forecast to exist until 1730 hrs.

The forecast capacity reserve requirement is 700 MW.
The minimum capacity reserve available is 611 MW.

AEMO is seeking an immediate market response.

An insufficient market response may require AEMO to implement a AEMO intervention event.

Manager NEM Real Time Operations

106175CONSTRAINTS01/03/2023 11:54:17 AM

Update to system strength requirements in North Queensland

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 102074

AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised to include following combinations.

-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=0, Haughton Syncon status = ON/OFF, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Kaban Windfarm to 100% (with Haughton Syncon ON), 0% (with Haughton Syncon Syncon OFF) and no limit to other NQLD Plants.

A revision to the constraint equations will be implemented at 1400 hrs on Wednesday 1st March 2023.

The new combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice

This advice contains all the combinations for Queensland for system normal cases. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.

The constraint equation in the Q-NIL set of the form below will be modified:

Q_NIL_STRGTH_XXXX
Q_NIL_STRGTH_XXXX_I


AEMO Operations
105936CONSTRAINTS17/02/2023 05:07:05 PM

Changes to Murraylink Very Fast Runback and constraints in Victoria

AEMO ELECTRICITY MARKET NOTICE

The Murraylink Very Fast Runback (VFRB) scheme is being modified to increase the capacity of the network due to the increase in generation in the area. The scheme will be changed so Murraylink VFRB can be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.

The changes to the scheme will be activated and constraint equaiton modified at 1200hrs Monday 20th February 2023. The following system normal constraint equations will be modified:
V^^V_NIL_KGTS
V^^V_NIL_KGTS_2
V>>SML_NIL_7A
V>>SML_NIL_7B
V>>SML_NIL_7C
V>>V_NIL_13
V>>V_NIL_14
V>>V_NIL_20
V>>V_NIL_21
V>>V_NIL_22
V>>V_NIL_23
V>>V_NIL_24
V>>V_NIL_25
V>>V_NIL_26
V>>V_NIL_26_1
V>>V_NIL_26A
V>>V_NIL_26A_1

For full details on the factors on constraint equations and all the constrint equation changes - these have now been loaded into AEMO's pre-production systems.

Ben Blake
AEMO Operations
105423RESERVE NOTICE31/01/2023 07:44:10 PM

Cancellation of Actual (LOR2) condition in the QLD region - 31/01/2023

AEMO ELECTRICITY MARKET NOTICE

The Actual LOR2 Condition in the QLD Region advised in AEMO Electricity Market Notice No.105421 is cancelled at 1940 hrs 31/01/2023.

Manager NEM Real Time Operations
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