With yesterday (Thursday 15th January 2026) serving as a reminder of the need for frequency control in the event of the unexpected (in that case simultaneous trip of Callide C3 and C4), here’s a snapshot of a 1-hour timespan today (Friday 16th January 2026 at 15:00 NEM time) to reinforce that all is not well, in that respect:
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.
A quick initial look at two lengthy periods of Non-Conformance at Aldoga Solar Farm on Sunday 12th October, with the first period seeing large negative Dispatch Error, and a blip in system frequency.
A short note with this snapshot from our live frequency reading over the past hour showing a spike well outside of the Normal Operating Frequency Band on Thursday 6th November 2025
The (concerning) frequency spike across the NEM in the middle of the day (Tuesday 19th August 2025) has triggered many proximate questions – understandable – but also has raised these 3 Broader Questions.
On Wednesday 3rd December, the AEMO held its annual Intermittent Generation Forum and discussed a number of different aspects of challenges and opportunities, including with respect to the frequency weakness on Friday 31st October 2025 contributed to by large aggregate Dispatch Error across Solar Farms
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