Back on 20th July 2023, Jonathon Dyson wrote the article ‘Let’s talk about inertia’ as part of the process of focusing readers on an increasingly important power system parameter.
1) This is something that we’ve been highlighting in Appendix 1 in GenInsights Quarterly Updates reports … and will surely feature when we come to reviewing 2024 Q1; and
2) It’s something AEMO has been publishing at a regional level for a shorter period of time.
With a trip of four large synchronous units in Victoria (all supplying large amounts of inertia) it’s no surprise to see that inertia levels fell significantly this afternoon in Victoria:
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.
Inertia levels, measured in megawatt-seconds (MWs), dropped towards the targeted secure operating level and the minimum threshold level on 12 November, 2024.
Last week’s notable under-frequency load shedding in Great Britain following what appears to be the loss of two generation units in quick succession prompts me to publish some of the analysis of aggregate levels of inertia supplied by synchronous generators in South Australia as part of the Generator Report Card.
A deeper look at the frequency data (our own, and also from some others) reveals a number of other interesting things about what happened on Tuesday 25th May 2021 in Queensland.
Drawing from GenInsights Quarterly Update for Q4 2022, and the next version of our ez2view software, we take a look at the *current* expectations for closure of Liddell Power Station (within weeks) and Eraring Power Station (in 2025). A segue into this week’s update to the ESOO, perhaps?
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