Catching up on a few tasks overhanging the holiday weeks, we noted how the spot price in South Australia dropped below zero (and almost did the same in Victoria) on an Anzac Day with low demand coinciding with high wind production levels.
Above, for future reference, is a snapshot of the incident in NEM-Watch v9.
Note (highlighted) the significant drop in demand in the Victorian region which contributed to the drop in prices in both regions.
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.
Here’s a view of how daily wind farm production (by region, and NEM-wide) has trended over the 2013 calendar year to date – the correlation of output on a daily basis, and the contribution towards regional and NEM-wide demand
A quick look at the extent to which wind supplies (across all wind turbines in the NEM) are diverse enough for supplies to have a degree of dependability.
Prompted by a reader’s question, we provide some further analysis into which brown coal plants have been declining output in recent times, and why this might be the case.
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