Constraint Case Study Followup – Early outcomes of the new “X5 constraint”
On 25th November, guest author Allan O’Neil examined the ‘X5 Constraint’. Two weeks of operation have passed, so now Allan reviews some of what’s happened.
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NSW renewable energy plan seals death warrant for six gigawatts of coal
David Leitch and Ben Willacy of ITK Services provide analysis of the NSW Government’s recently announced renewable energy plan.
What’s “Primary Frequency Response” and why does it matter anyway?
Paul McArdle recently drew my attention to a short Twitter thread started by David Osmond on the arcane topic of NEM system frequency behaviour: At Paul’s invitation I’ve dived further into this issue to fill in some background, provide…
Batteries vs. peaking plants – a case study from 13 October
UQ’s Andrew Wilson pens a case study on the market events that occured on Tuesday the 13th of October in the QLD region, in which he examines the relative performance of UQ’s 1.1MW behind-the-meter battery during this period of market volatility.
Questions prompted by that chart from the ‘Renewable Integration Study’
Patricia Boyce examines a chart that was included in the AEMO’s Renewable Integration Study, which depicted actual and modelled solar and wind generation output against underlying demand. She then looks at whether intermittent generators can achieve sufficient return and discusses the problems that still need to be solved.
Does the NEM need to be redesigned?
Guest author Stephen Wilson chaired an ‘ESIG Down Under’ conference webinar on ‘Designing the Energy Markets of the Future’. Whilst introducing the session, Stephen presented a diagram that helped to clarify the combination of different time horizons that need to be considered in holistically describing ‘the Market’. It will be of interest to WattClarity readers.
Which state pays for interconnectors?
Ben Skinner from the Australian Energy Council examines how transmission is currently funded in the NEM.
How have you already overcome reported barriers to participating in Demand Response in the National Electricity Market?
University of Queensland PhD candidate, Nicole Lashmar, is conducting a research project which aims to identify the motivations, risks and opportunities for businesses when deciding to participate in demand response programs.
Seasonality and deep storage in a highly decarbonized NEM
David Leitch of ITK Services examines the seasonal effects of Variable Renewable Energy (VRE) and some underlying challenges in this energy transition [this article is based on presentation at ‘Smart Energy Virtual’ on Wed 9th Sept 2020]
ESOO 2020 – What a difference a year makes
Guest author, Allan O’Neil, takes a look at the AEMO’s 2020 ESOO to unpick the reason for the differences in outlook (and the sensationalised news headlines) compared to 2019 ESOO.
Quantifying pandemic effects on power demand in Australia’s National Electricity Market
Guest author, Mark Todoroff, examines operational demand figures for each region to quantify the impact of COVID-19 on the NEM.
Analysis of my home battery + solar system’s first year performance
Guest author, Andrew Wilson, reviews the performance of his home solar + battery system at the one year mark after installation.
5-minute settlement – Why it makes such a difference to utility scale storage in Australia’s National Electricity Market
Guest author, Warwick Forster, examines the delayed but impending move to 5-minute settlement for the NEM and the potential effects on utility scale storage.
Mapping the impact of COVID-19 on electricity demand in Victoria
Jill Cainey from Energy Networks Australia maps the impact of COVID-19 on residential and business energy consumption in Victoria.
Why controlling residential solar inverters is more complicated than it appears
SwitchDin’s Joseph Kassouf examines the real-world challenges of coordinating control of rooftop solar inverters.
DER Visibility and Monitoring Best Practice Guide – real time data is key to industry growth
Several stakeholders within the DER industry have come together to publish a best practice guide specifying the data required to enable aspects of the next iteration of our electricity network. Our guest author, Stefan Jarnason of Solar Analytics, writes about the need for real time DER data and explains aspects of the guide.
Why Have Home Battery Forecasts Been Staggeringly Wrong For Years?
Ronald Brakels looks at the state of the home battery market and reflects on how past predictions of its evolution look in hindsight.
UQ presents webinar on the Q1 performance of their 1.1MW Tesla battery
The University of Queensland’s project team that was involved with the installation and operations of their 1.1MW Tesla battery presented a webinar and exhaustive Q&A on the first results of the project.
Small Solar Should Embrace Control
Tom Geiser, Senior Market Manager at Neoen, discusses the merits of proportional, relative control on the issue of small solar curtailment.
Can batteries replace ‘cap’ contracts to hedge customer load? A case study from Q1 2020
Guest author, Andrew Wilson, presents a case study of the performance and results from the University of Queensland’s 1.1MW Tesla Powerpack system during Q1 2020.