Frequency drop on Friday afternoon 31st October 2025

Posted by Paul McArdleFriday 31st October 2025  5:09 PM   Topic: 2025-10-31

A short note with this snapshot of a 6-hour long frequency trace on Friday afternoon 31st October 2025, to capture what looks like another VRE-induced frequency wobble earlier this afternoon:

2025-10-31-at-17-01-NEM-MainlandFrequency

This looks to have occurred around 14:00 (NEM time) today.

Will look into this further at some future point in time.

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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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1 Comment on "Frequency drop on Friday afternoon 31st October 2025"

  1. Matt Mushalik | Friday, October 31 2025 at 9:09 pm | Reply

    VP6 back 15:30 31 Oct. Tell us what happened with Vales Point

    I had done this post:

    7/10/2022
    Sale of Vales Point: How will Czech brown coal baron Pavel Tykac with
    business registered in Liechtenstein impact on NSW coal and energy markets?
    http://crudeoilpeak.info/sale-of-vales-point-how-will-czech-brown-coal-baron-pavel-tykac-with-business-registered-in-liechtenstein-impact-on-nsw-coal-and-energy-markets

3 Trackbacks & Pingbacks

  1. Vales Point 6 returned to service Friday afternoon/evening 31st October 2025 after tube leak outage - WattClarity
  2. A second look at the frequency drop on Friday afternoon 31st October 2025 - WattClarity
  3. Extending the tabulated history of significant (Frequency and/or AggROT) events into 2025 Q3 and 2025 Q4 - WattClarity

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