AEMO notes ‘Release of Heywood limit from SA to Victoria’ on Friday 2nd October 2026

Posted by Paul McArdleFriday 2nd October 2026  1:52 PM   Topic: 2026-10-02

On Thursday 1st October 2026, Project Energy Connect  went live in AEMO Market Systems:

…   we reported some of this via ‘Project Energy Connect goes live today (Thursday 1st October 2026)’.

 

So it’s worth noting that AEMO published MN145449 at 12:37 on Friday 2nd October 2026 to report on other developments on the other main link into South Australia:

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

From :              AEMO
To   :              NEMITWEB1
Creation Date :     02/10/2026     12:37:05

——————————————————————-

Notice ID               :         145449
Notice Type ID          :         GENERAL NOTICE
Notice Type Description :         Subjects not covered in specific notices
Issue Date              :         02/10/2026
External Reference      :         Release of Heywood limit from SA to Victoria – 2nd October 2026

——————————————————————-

Reason :

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 144186.

AEMO, Transgrid and Electranet have reviewed the test results following the Heywood testing on 2nd June 2026. The next hold point can now be released.

The hold point of 600 MW from SA to Victoria will be implemented at 1400 hrs 2nd October 2026. The following constraint set will be invoked:
I-SV_600_TEST

Please also refer to the published formal PEC Stage 1 and HIC capacity release testing information at the following link: https://aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2023/project-energyconnect-stage-1-and-hic-capacity-release/pec-stage-1-and-hic—final-test-program.pdf?la=en.

Ben Blake
AEMO Operations

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END OF REPORT
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About the Author

Paul McArdle
Paul was one of the founders of Global-Roam in February 2000. He is currently the CEO of the company and the principal author of WattClarity. Writing for WattClarity has become a natural extension of his work in understanding the electricity market, enabling him to lead the team in developing better software for clients. Before co-founding the company, Paul worked as a Mechanical Engineer for the Queensland Electricity Commission in the early 1990s. He also gained international experience in Japan, the United States, Canada, the UK, and Argentina as part of his ES Cornwall Memorial Scholarship.

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