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 first excerpt from GenInsights Quarterly Update for Q4 2022 looks specifically at the trended level of adoption of self-forecasting for Semi-Scheduled Solar Farms in the NEM. This article on Monday 26th February 2023 precedes some changes AEMO might make on Tuesday 27th February 2023.
In the fourth instalment of this ongoing case study, Dan Lee maps the locations and contributions of the semi-scheduled units that contributed to the +861MW Aggregate Raw Off-Target that occurred on the afternoon of October 27th 2022.
Like was the case on 4th July 2013, the cause of this large Aggregate Raw Off-Target result (across all Semi-Scheduled Generators) was a single unit trip.
This is the 12th Case Study in this series (looking at each of 98 extreme incidents). This one is simpler than the 11th Case Study!
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!