After noting this here on Twitter closer to the spike in the 17:05 dispatch interval, I thought it would be useful for subsequent reference to also publish this snapshot from NEMwatch v10 here:
Annotated on the image was the afternoon decline in aggregate production from intermittent sources right across the NEM down below 1,000MW at the time – and also a comparison to the volatility that happened yesterday (Tuesday 1st June).
At least tonight it seems that we’ve escaped the barrage of SMS that come from Low IRPM alerts across the NEM!
For the avoidance of doubt, there are other factors contributing the volatility, not least of which are the absence of 4 x Callide units – which will collectively remain offline until B1 returns on Friday 11th June.
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.
For several days in early December, temperatures reaching 40 degrees in Queensland and New South Wales cause airconditioning load (and hence total demand) to soar in both regions.
The high demands resulted in very high prices being experienced in both QLD and NSW (and also the SNOWY region). Both VIC and SA were insulated from the high prices because (at least in part) of the fact that transfers over the SNOVIC interconnector were constrained to minimise negative inter-regional surplus
Today I managed to get about half-way (only!) through some analysis I wanted to do to ‘scratch that itch’ about what happened in the NSW Region on Thursday 23rd January – with LOR2 conditions necessitating RERT (Reserve Trader) in the NSW Region.
There was a high level in demand in Victoria on Thursday 26th January 2006.
This was especially remarkable, considering that it was an Australia Day public holiday – when commercial (though not industrial or residential) demand could be expected to be somewhat lower than would otherwise be the case.
Coupled with this level of demand was a significant spike in price that lasted several hours.
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