As noted 7 days ago (Tue 5th July), I’ve just returned from over a month away (and disconnected from the NEM), and have been striving to catch up.
One of the things I think everyone in our team missed – and you might have as well – is that the AEMO’s been working through Primary Frequency Response (PFR) Test Guidelines for Semi-Scheduled Plant:
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.
Today, more than 14 months after the publication of GenInsights21 we’re sharing Key Observation 15 of 22, relating to self-forecasting for Semi-Scheduled units.
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.
One of the many data sets being crunched as part of our analytical efforts underpinning the development of ‘GenInsights21’ is system frequency. In this short article today, we share some initial observations on how it has been changing.
2 Commentson "Submissions closing tomorrow (Wed 13th Aug 2025) to AEMO consultation on ‘Primary Frequency Response Test Guidelines for Semi-Scheduled Plant’"
Hi Paul, you have probably got this a hundred times already, but in case it was missed; in the headline you have Fri 13th instead of Wed 13th. Spooky.
oops!