Locations of last week’s CIS winners vs known areas of congestion
After a suggestion from a reader, Dan plots the locations of the 19 winning CIS projects announced last week against economic and network curtailment data.
curtailment
A collation of articles tagged with ‘curtailment’
… but you might also want to look specifically at articles categorised under ‘Curtailment of VRE’.
Curtailment concerns provide a view of the future
Reserve levels and curtailment estimates of November 27 indicate looming transmission challenges for the future.
Availability utilisation on 27 November 2024 in NSW
Separating curtailment from being priced out, we uncover features of unit utilisation by fuel type on the 27th November 2024.
Four NEM-related themes from COP29
After returning from COP29 in Baku, Dan shares his thoughts about energy transition challenges in international electricity markets, and how they intersect with what we’re seeing in the NEM.
(Up to) 75% of Large Solar capability curtailed across the NEM, on Sunday 22nd September 2024
With new ‘lowest’ points for demand in NSW reached over the weekend, today we take a quick look back at curtailment across Large Solar Farms right across the NEM.
Which Solar Farm DUIDs were curtailed at 12:35 on Sunday 1st September 2024?
On Sunday 1st Sept 2024, aggregate curtailment of Solar Resource from (Semi-Scheduled) Large Solar across the NEM reached 79.2% … in this follow-on article we explore the question ‘WHICH Solar Farms were curtailed … and WHY?’
Curtailment of Wind Resource (i.e. Semi-Scheduled) across the NEM reaches 53.6% on Sunday 1st September 2024
Whilst not reaching the heights of curtailment of Semi-Scheduled Large Solar, on Sunday 1st September 2024 curtailment of Wind yield across the NEM reached as high as 54%.
Curtailment of Solar Resource from (Semi-Scheduled) Large Solar across the NEM reaches 79.2% on Sunday 1st September 2024
On Sunday 1st September 2024 curtailment of Large Solar yield across the NEM reached as high as 79.2%.
Curtailment (spillage) of Large Solar reaches 2/3 of total resource, on Saturday 24th August 2024
A short record of some large curtailment of Large Solar resource on Saturday 24th August 2024.
Low wind harvest in South Australia
Also on social media was a comment by Jess Hunt about low wind conditions in South Australia currently … which has prompted these thoughts.
Keeping Up with the Curtailment Part 2: The what and the where
Dan Lee takes a deeper dive into network and economic curtailment, and shares some charts and data maps that demonstrate seasonal effects, and the geographic spread of units affected.
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 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!