To provide some more colour about what’s been happening on Thursday 17th October 2024, here’s a snapshot of NEM Mainland frequency at 15:07 (NEM time) looking back only 15 minutes:
Here’s a snapshot of a collage of widgets from ez2view for the 15:15 dispatch interval:
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.
Coincident with the walk home this afternoon/evening, the ‘Notifications’ widget in one of our display copies of ez2view alerted us to a large drop of ‘Market Demand’ in the NSW region … at a 937MW drop in the 5 minutes to 17:15 NEM time, so I have taken an initial look
Guest author, Allan O’Neil delves further into understanding what happened in response to the transmission tower failures on 31st January 2020 that sent system frequency in South Australia and led to a large reversal of flows.
Looking back at system frequency, we see a noticeable drop in system frequency around ~15:45 (NEM time) on Saturday 5th October 2024.
(a) There’s no large trip of a coal unit that coincides
(b) But it *might be* the result of a large collective under-performance (relative to Target) across the Semi-Scheduled fleet NEM-wide ?
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