AEMO notes ‘Update to system strength requirements in North Queensland’ to cater for 0 x Gladstone units online

A quick note to copy in MN124047 published at 09:32 NEM time this morning (Tuesday 4th February 2025):

‘——————————————————————-
MARKET NOTICE
——————————————————————-

From :              AEMO
To   :              NEMITWEB1
Creation Date :     04/02/2025     09:32:40

——————————————————————-

Notice ID               :         124047
Notice Type ID          :         CONSTRAINTS
Notice Type Description :         New/Modified Constraints
Issue Date              :         04/02/2025
External Reference      :         Update to system strength requirements in North Queensland

——————————————————————-

Reason :

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 121468

AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.

The system normal equations have been revised to remove Gladstone >=1 requirement.

A revision to the constraint equations will be implemented at 1200 hrs on Tuesday 4th February 2025. 

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

——————————————————————-
END OF REPORT
——————————————————————-’

With all 6 x Gladstone units expected to be offline by the end of the day due to Industrial Action, this is very timely!