Some conversations with new generation developers about their prospective developments in northern Queensland has prompted some analysis to help them understand the size of the addressable market for them.
Articles by Paul McArdle
We’ve noted what seems to be an increasing tendency of all of us to reach for some form of “magic wand” as a cure-all for the vexed challenges confronting us in this energy transition.
Replacement of yet another blown LED at home on the weekend prompted me to dive into some historical voltage readings (made accessible through our Solar Analytics subscription). I present some results here, and hope some knowledgeable readers can help me out with 4 Questions I pose…
Temperature forecasts are for hot weather in Queensland early this week – which means AEMO is forecasting high demand in the QLD region. With this, they are alerting on a forecast LOR2 Low Reserve Condition warning. We take a look…
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.
Based on a tip from a savvy WattClarity reader, we have a quick look at what turned out to be the lowest-ever (normal) instance of Scheduled Demand on a dispatch target basis in the South Australian region of the NEM.
Fifteen months after first speaking at Clean Energy Summit about the train wreck that’s ongoing in terms of our mismanaged energy transition (and coincident with another industry gathering in the form of the AFR National Energy Summit), we note about Villain no5 as the next contributor to our transition running off the rails…
A detailed look at two specific trading periods in the day (Tuesday 24th July 2018) that saw negative dispatch prices occur at the start of trading periods – hence provided a case study for how existing Semi-Scheduled plant respond (especially in combination with transmission constraints and the Semi-Dispatch Cap).
The multi-region islanding event on Saturday 25th August was a very rare event – perhaps the only one’s that occurred in the history of the NEM. It has generated plenty of questions – and driven our analysis further. We share some more observations here, and keenly await the draft AEMO report.
Following on from Saturday’s islanding event, we use our current interest in AEMO’s 4-second SCADA data to prove a little more…
Both the QNI and the Heywood interconnectors tripped around the same time on Saturday 25th August 2018 (not apparent at this time which one was first, and why), leading to both QLD and SA regions being separately islanded from the rest of the mainland NEM. This also contributed to over 1,000MW of load shedding in NSW and VIC, and presumably some frequency excursions in QLD and SA.
A brief follow on from yesterday’s post, with the advantage of being able to review yesterday’s bids (and rebids) today.
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.
Highlighting the different approaches taken to cost/price based dispatch in an interconnected electricity system (or market).
Walking through 5 (much simplified) “Dispatch Intervals” to illustrate some starting principles of marginal price based dispatch arrangements, such as used in the National Electricity Market
Conversations in the week following my post about “Villain #4” (being the deficit in required Energy Literacy) prompted some analysis relating to Marginal Loss Factors
A year after I first spoke about “Villains” playing a role in the train wreck of our energy transition, I’ve finally found some time to post about Villain #4.
Some brief analysis of today’s price volatility seen in the South Australian region of the NEM
Returning to the theme of analysis of Q2 prices (completed in 2017 and 2016 due to Q2 historically being an uneventful period) we see that prices have backed off from the “off the charts” level of 2017, but are still much higher in all regions than most other regions. In some cases results are second worst in 20 years.
Some further thoughts on what we’ve termed a “Solar Correlation Penalty” which point-view of some specific dispatch intervals seems to suggest is occurring