A short article this morning to record a bout of volatility* in the South Australian region that began at 06:05 and ended with last spike at 08:25 on Wednesday 30th August 2023.
* in this case defining ‘volatility’ as spot prices above $1,000/MWh.
Here’s a snapshot of the initial run of prices captured in SMS alerts triggered by NEMwatch (a function also available in our deSide® and ez2view software):
The highest price in the >2 hour run was (as highlighted) to $12,600.44/MWh for the 06:45 dispatch interval. Here’s the earlier 06:35 price captured in a snapshot from NEMwatch 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.
On Saturday evening 19th November 2022 the Heywood interconnector returned to service following temporary repairs to the tower damaged on Saturday 12th November.
AEMO has adjusted the formula (i.e. constraint equations) used to manage system strength in South Australia, which has been (since mid-2017) by constraining down the output of wind farms under certain conditions.
Out of curiosity, and driven by questions received from several people, I’ve invested a bit of time today to delve further into the record low level of Scheduled Demand seen in the Victorian region (and perhaps also across the whole of the NEM) on Saturday 29th August 2020.
1 Commenton "2+ hour bout of spot price volatility in SA on Wednesday morning 30th August 2023"
Interconnectors seem very constrained. Continuing planned outages on SA transmission lines?