We noted as it happened (e.g. hard to ignore a steady run of SMS alerts) , but only belatedly publish this record of evening volatility on Thursday evening 12th December 2024 – starting with this snapshot of tabulated Spot Price and ‘Market Demand’ from inside of NEMwatch:
We see that:
1) First price spike above $1,000/MWh was at 17:50 (NEM time) whilst last one was 19:30
2) During this period, the levels of ‘Market Demand’ were relatively modest.
Here’s the 18:40 dispatch interval (NEM time) captured in NEMwatch to show more of what was happening at the time:
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.
The volatility that has been with us for weeks now (particularly QLD and NSW), and the dramas unfolding at Callide power station, prompted me to have a broader look at the availability of black coal plant across QLD and NSW, and compare this to prior Q2 periods.
Last article (on the day) about Thu 29th Feb 2024. Prompted by an AFR article just over 24 hours ago, how large was the contribution of Eraring Power Station to the NSW electricity region today?
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