Some sizeable cycles in ‘Market Demand’ in South Australia on Thursday 6th November 2025

Posted by Paul McArdleFriday 7th November 2025  4:04 PM   Topic: 2025-11-06

We’ve already invested some time to progressively explore a number of things that happened yesterday (Thursday 6th November 2025) … especially the (suspected data-glitch triggered) significant frequency ramp event.

But it’s probably worth recording an event that happened later in the afternoon – via this ‘Trends Engine’ chart from ez2view:

2025-11-06-ez2view-Trends-SA-RegionalData

We see two distinct (and significant) cycles of ‘Market Demand’ in South Australia between 14:00 and 16:00 NEM time:

1)  Which we saw at the time, through ‘Notifications’ widget alerts in ez2view … like this one at 14:11 for the 14:15 dispatch interval NEM time;

2025-11-06-at-14-11-ez2view-Notification-SA-DemandDrop

2)  And which we assumed to be*, at the time, related to rooftop PV and some sort of ‘disappearance of cloud cover’ issue around Adelaide.

* though there may be other explanations.

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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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