Keeping up with the curtailment: 3.7TWh of semi-scheduled economic and network curtailment estimated in 2023
A chart of the the month-by-month semi-scheduled economic and network curtailment totals, along with the top 3 worst hit units over 2023.
curtailment
Curtailment of Large Solar in NSW on Thursday afternoon 29th Feb 2024 exacerbated the price volatility
A quick look back at Thu 29th Feb 2024 – a day where afternoon (congestion-based) curtailment of Large Solar in NSW exacerbated the tight supply-demand balance and spot price volatility.
Victorian renewable generation on 13 February 2024: One picture and a thousand (sorry, many more) words
Guest author, Allan O’Neil, takes us several steps further in understanding the events in Victoria on Tuesday 13th February 2024 – especially with respect to VRE (wind and solar) production.
SA Islanding: Managing solar on the island
In our third guest authored post this week, Blake Ashton from SA Power Networks talks about the SA islanding event that occurred just over twelve months ago – how SAPN managed solar curtailment, and how their new ‘flexible exports’ option can address future challenges.
About the low Operational Demand on Sat 16th Sept and Sun 17th Sept 2023
Following the low levels of demand over the weekend (Sat 16th and Sun 17th Sept 2023) here’s a few quick notes.
Increasing curtailment of Wind and Solar across the NEM
With Q2 drawing to a close, we’re gearing up to produce GenInsights Quarterly Update for this quarter. Timely to look back at Q1 at what was reported about curtailment of wind and solar in that earlier Quarterly Update.
Renewable curtailment – forced and not quite so forced
Inspired by the recent article by Tristan Edis (who referenced the GSD2022 in analysis of curtailment of some wind and solar farms), Allan O’Neil follows on with more analysis of the two main types of curtailment. Allan differentiates these as ‘forced curtailment’ and ‘economic offloading’
Large Solar production in QLD on Saturday 16th October crushed between Rooftop PV and Coal
A short note at a ‘new normal’ condition that we can expect to see increasingly in NEM regions (including QLD) as rooftop PV continues to grow in scale.
With ‘Minimum Demand’ plunging across mainland regions, AEMO initiates new Market Notices relating to Rooftop PV
Just last Friday the AEMO notified stakeholders more broadly about their new Market Notice Framework about ‘Minimum System Load’ and/or ‘Distributed Photovoltaics (DPV) Contingency’ … prior to Sunday’s new lowest point for minimum demand in South Australia!
New Sources of Strength
Guest author Allan O’Neil puts together an in-depth explainer about system strength and looks at the current approach to system strength management in South Australia, its impacts and the imminent installation of synchronous condensers on the SA grid.
Exploring deeper (part 1), about minimum demand on Saturday 29th August 2020
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.
A stinker today in the south – but demand barely wakes from the holiday slumber (and yet prices explode!)
A preliminary look at a number of events that happened today, leading to prices spiking to the Market Price Cap in a number of regions, Demand Side Response being very active, and trading desks being very busy.
Contact us if you’d like a detailed Case Study
Demand Side Response in NSW on 4th February
On the 4th of February at around 11am energy users in NSW appear to have curtailed their load in response to high prices, resulting in a significant drop in demand. Simultaneously, network conditions and generator rebidding caused the NSW pool price to jump back and forth between extreme prices close to VOLL ($10,000/MWh) and the Market Floor Price (-$1,000/MWh).
Prices spike in South Australia today
Some quick notes about another price spike today in the South Australian region of Australia’s National Electricity Market
Some benefits of curtailability in Australia’s National Electricity Market
A look-back at 11 years of NEM history to reveal the nature and measure of benefits large industrial energy users can gain from curtailability in the NEM
News Article Highlighting Opportunity for Demand Response
It was with interest that we stumbled on this article in the Herald newspaper talking about what happened on the 31st October in NSW