AEMO to change Constraint Equations used during outages that create a credible risk of SA islanding

A very quick article today, because this change in Constraint Equations for South Australia will be of interest to many readers – and to make it easier for us to link back to later.

At 13:13 today (Tuesday 8th October 2024) the AEMO published Market Notice 118672 as follows:

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MARKET NOTICE
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From :              AEMO
To   :              NEMITWEB1
Creation Date :     08/10/2024     13:13:36

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Notice ID               :         118672
Notice Type ID          :         CONSTRAINTS
Notice Type Description :         New/Modified Constraints
Issue Date              :         08/10/2024
External Reference      :         Managing outages that create a credible risk of SA islanding

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Reason :

AEMO ELECTRICITY MARKET NOTICE

From 9th Oct 2024 AEMO will change constraints used during outages that create a credible risk of SA islanding.

From this date AEMO will:

1) Increase the maximum allowable flow on the V-SA interconnector from 50 MW to 250 MW in the VIC to SA direction, where the transmission outages is a planned outage.

2) Operate the SA region to the default 49-51 Hz target frequency containment band following a contingency event resulting in actual SA islanding. In order to meet this requirement, AEMO may now procure Contingency Raise FCAS  locally from the SA region during these outages.

These changes reflect updated advice received by AEMO from the SA Jurisdictional System Security Coordinator.

The first network outage affected by this change is planned for 14th October 2024.

Andrew Groom
AEMO Operations

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END OF REPORT
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Nothing further, at this point…