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.
This is the second of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy Council entitled ‘Maximising Profitability in the NEM’ for Wind Farms.
The NEM operates at a frequency of 50 hertz (Hz) which means the alternating current should cycle 50 times a second between positive and negative voltage.
In Part 2 of this Case Study, we look at those 15 x Semi-Scheduled units highlighted with large deviations (mostly under-performance) at 17:05 on 27th October 2022 in order to understand more.
A week’s worth of data provides indications of how semi-scheduled generators are using bid MaxAvail to manage dispatch availability.
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!