For two remarkable winter evenings in 2007 (19th and 20th June specifically) NEM-Wide Instantaneous Reserve Plant Margin (IRPM) plunged to the lowest levels ever seen in the NEM (a mere 7.6%) as generators were caught short of capacity by a cold snap that hit earlier than expected, whilst plant was still out for maintenance and other plant still suffering from drought-inflicted limitations of capability.
About the Author
Paul McArdle
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.
Related Articles
Paul McArdle Wed 8th June 2022
Queensland spot prices on Wed 8th June 2022 … a (discordant?!) Symphony in 3 Movements
Wednesday 8th June 2022 saw bust-boom-bust supply-demand balance, with yo-yo pricing resulting. Very topical, given discussions in various parts about a capacity market.
Paul McArdle Mon 4th July 2016
Reviewing Q2 prices – short-term excursion, or more systemic change in pricing patterns?
Some initial analysis about the remarkable pricing outcomes seen across all regions of the NEM through Q2 2016
Paul McArdle Sat 4th July 2020
Saturday 4th July 2020 sees QLD spot prices crunched over long periods of the day, with solar booming
Some quick reflections on a day that saw spot prices in QLD down below $0/MWh for most of the period seeing strong daylight hours, hence strong injections from rooftop PV systems.
Linton Corbet Wed 31st July 2024
An initial pass over ENERGY bids during price volatility of 30th July 2024 (focused on South Australia)
Five key takeaways arise from an initial inspection of energy bids on the 30th July 2024, where extended periods of high energy prices eventuated.
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