Afternoon trip of Bayswater unit 3 delivers rapid drop in Mainland Frequency

Still watching the market (in between other preparations) we noted this emailed alert from the ez2view ‘Notifications’ widget noting a trip of BW03 unit immediately prior to the 16:10 dispatch interval (NEM time) on Wednesday 5th March 2025:

2025-03-05-at-16-16-ez2view-Notification-BW03-trip

No time to look further, but here’s a quick snapshot of live NEM mainland frequency (measured at 100 milli-seconds, though this chart truncates a bit):

2025-03-05-at-17-10-NEM-Mainland-Frequency

The frequency disruption is clear to see.


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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