Spot price volatility on Sunday 11th July 2021 – straight out of Angela Macdonald-Smith’s article!
Straight out of the pages of the FinReview and into spot price outcomes in the NEM on Sunday 11th July 2021!
Wind Correlation Penalty
New all-time record Wind Output across the NEM last night (5,430MW at 23:55 on Tuesday 13th April 2021)
David Osmond’s question on Twitter prompted me to have a look at large wind production overnight.
AGL Energy announces $2.6b impairment … of which $1.9b for legacy wind farm off-take agreements
Today AGL Energy announces a big impairment … with a big chunk related to long-term wind offtake agreements which AGL entered into between 2006 and 2012.
With increasing diversity, the low point of instantaneous aggregate Wind Generation across the NEM is nudging away from 0MW
Patricia Boyce’ challenging question coincided with the low point of cyclic wind output across the NEM this afternoon, and prompted some thinking…
Using the GSD2019 to explore the VALUE of Dispatchability
An article published by AEMC on the ‘value of dispatchability’ provided the spur to return to our intention of freely sharing insights gleaned from the Generator Statistical Digest 2019. Today’s article highlighting the value of dispatchability.
Insights: How do weather patterns impact wind REZ correlations?
RepuTex Energy builds on the Generator Report Card 2018 to provide insights into how different weather patterns impact wind production and the implications for system diversity and portfolio risk.
Heightened Risk an increasing feature in the NEM these days…
A full page article in the FinReview today quotes a number of people (including our work in the Generator Report Card) speaking about heightened risk in the NEM. Coincident with this, we see another instance of negative prices in South Australia (which has become increasingly common) but also something I can’t remember seeing before – an average negative price across the entire day so far!
Assessing the diversity of intermittent (wind and solar output) as one piece of analysis in the Generator Report Card
In terms of diversity of intermittent supplies, we need to understand that we’re not just comparing data series on a scale that runs from “highly correlated” to “random”…
We’re preparing an extensive “Generator Report Card”, and would welcome discussion (with your pre-orders)
Following from (what we have seen as) an increase in diversity of concerns (and claims) about different aspects of generator performance, we’re leveraging our extensive data set and capabilities to have a deeper look, leading to the publication of a Generator Report Card with data to 31st December 2018. We’d welcome input from those who wish to pre-order their copies now at an initial low rate.
Confirmation of yesterday’s supposition that some wind farms are blinking in the face of negative prices
A brief follow on from yesterday’s post, with the advantage of being able to review yesterday’s bids (and rebids) today.
The “Wind Correlation Penalty” bites in South Australia, and some wind farmers appear to blink
The past week, with wind farm output blowing gangbusters in South Australia (coupled with low demand and System Strength requirements) we seen the “Wind Correlation Penalty” start to bite, with some reactions also beginning to show.
An updated look at daily curtailment of aggregate wind farm output across South Australia
This morning over on Twitter, I was pulled into a discussion that had started with respect to volume of wind energy curtailed in South Australia: The genesis of this twitter conversation was the AEMO’s “Quarterly Energy Dynamics – Q1…
Why is wind production being curtailed (or “dispatched down”, more strictly speaking)?
It was inevitable that Semi-Scheduled plant would start to experience times when they are dispatched down. It’s a big prompt to take next steps up the learning curve.
How much wind-powered electricity production has been curtailed in SA since these new constraints were invoked?
An article that sums up some decidedly un-quick calculations we’ve performed – looking over an 8 week period to 13th September to estimate how much wind power has been curtailed by the AEMO.
Infigen Energy suffering from “wind correlation penalty” in South Australian wind farms
Some thoughts about the possible uplift to Infigen Energy revenues, stemming from higher forward contract prices in the South Australian region of the NEM